| Year |
Citation |
Score |
| 2024 |
Berné O, Habart E, Peeters E, Schroetter I, Canin A, Sidhu A, Chown R, Bron E, Haworth TJ, Klaassen P, Trahin B, Van De Putte D, Alarcón F, Zannese M, Abergel A, ... ... Kwok S, et al. A far-ultraviolet-driven photoevaporation flow observed in a protoplanetary disk. Science (New York, N.Y.). 383: 988-992. PMID 38422128 DOI: 10.1126/science.adh2861 |
0.349 |
|
| 2020 |
Zhang Y, Chau W, Nakashima J, Kwok S. The spectra of evolved stars at 20–25 GHz: Tracing circumstellar chemistry during the asymptotic giant branch to planetary nebula transition Publications of the Astronomical Society of Japan. 72. DOI: 10.1093/Pasj/Psaa032 |
0.466 |
|
| 2020 |
Sadjadi S, Kwok S, Cataldo F, García-Hernández DA, Manchado A. A theoretical investigation of the possible detection of C24 in space Fullerenes Nanotubes and Carbon Nanostructures. 28: 637-641. DOI: 10.1080/1536383X.2020.1731735 |
0.314 |
|
| 2019 |
Hsia C, Zhang Y, Kwok S, Chau W. A young multipolar planetary nebula in the making—IRAS 21282+5050 Astrophysics and Space Science. 364: 32. DOI: 10.1007/S10509-019-3523-2 |
0.444 |
|
| 2018 |
Fang X, Zhang Y, Kwok S, Hsia C, Chau W, Ramos-Larios G, Guerrero MA. Extended Structures of Planetary Nebulae Detected in H2 Emission The Astrophysical Journal. 859: 92. DOI: 10.3847/1538-4357/Aac01E |
0.307 |
|
| 2017 |
Sadjadi S, Zhang Y, Kwok S. On the Origin of the 3.3 μm Unidentified Infrared Emission Feature The Astrophysical Journal. 845: 123. DOI: 10.3847/1538-4357/Aa8141 |
0.401 |
|
| 2017 |
Kwok S. Abiotic synthesis of complex organics in the Universe Nature Astronomy. 1: 642-643. DOI: 10.1038/S41550-017-0272-4 |
0.301 |
|
| 2016 |
Hsia C, Sadjadi S, Zhang Y, Kwok S. THE 6 μm FEATURE AS A TRACER OF ALIPHATIC COMPONENTS OF INTERSTELLAR CARBONACEOUS GRAINS The Astrophysical Journal. 832: 213. DOI: 10.3847/0004-637X/832/2/213 |
0.359 |
|
| 2016 |
Kwok S. Complex organics in space from Solar System to distant galaxies Astronomy and Astrophysics Review. 24: 1-27. DOI: 10.1007/S00159-016-0093-Y |
0.376 |
|
| 2015 |
Kwok S. Organic compounds in circumstellar and interstellar environments. Origins of Life and Evolution of the Biosphere : the Journal of the International Society For the Study of the Origin of Life. 45: 113-21. PMID 25720971 DOI: 10.1007/S11084-015-9410-0 |
0.374 |
|
| 2015 |
Sadjadi S, Zhang Y, Kwok S. A theoretical study on the vibrational spectra of polycyclic aromatic hydrocarbon molecules with aliphatic sidegroups Astrophysical Journal. 801. DOI: 10.1088/0004-637X/801/1/34 |
0.31 |
|
| 2015 |
Zhang Y, Kwok S. On the viability of the PAH model as an explanation of the unidentified infrared emission features Astrophysical Journal. 798. DOI: 10.1088/0004-637X/798/1/37 |
0.415 |
|
| 2015 |
Kwok S. Organic Synthesis in the Late Stages of Stellar Evolution Eas Publications Series. 71: 349-353. DOI: 10.1051/Eas/1571084 |
0.351 |
|
| 2014 |
Hsia CH, Chau W, Zhang Y, Kwok S. Hubble space telescope observations and geometric models of compact multipolar planetary nebulae Astrophysical Journal. 787. DOI: 10.1088/0004-637X/787/1/25 |
0.34 |
|
| 2013 |
Zhang Y, Kwok S. On the detections of C<inf>60</inf>and derivatives in circumstellar environments Earth, Planets and Space. 65: 1069-1081. DOI: 10.5047/Eps.2013.06.003 |
0.343 |
|
| 2013 |
Imai H, Deguchi S, Nakashima J, Kwok S, Diamond PJ. The Spatiokinematical Structure Of H2O And Oh Masers In The “Water Fountain” Source Iras 18460–0151 The Astrophysical Journal. 773: 182. DOI: 10.1088/0004-637X/773/2/182 |
0.398 |
|
| 2013 |
Zhang Y, Kwok S, Nakashima J, Chau W, Dinh-V-Trung. A Molecular Line Survey of the Carbon-rich Protoplanetary Nebula AFGL?2688 in the 3?mm and 1.3?mm Windows The Astrophysical Journal. 773: 71. DOI: 10.1088/0004-637X/773/1/71 |
0.443 |
|
| 2013 |
Kwok S, Zhang Y. Unidentified infrared emission bands: Pahs or maons? Astrophysical Journal. 771. DOI: 10.1088/0004-637X/771/1/5 |
0.386 |
|
| 2013 |
Imai H, Nakashima JI, Yung BHK, Deguchi S, Kwok S, Diamond PJ. Exploration of a relic circumstellar envelope in the "water fountain" Source IRAS 18286-0959 Astrophysical Journal. 771. DOI: 10.1088/0004-637X/771/1/47 |
0.437 |
|
| 2013 |
Yung BHK, Nakashima JI, Imai H, Deguchi S, Henkel C, Kwok S. Water maser survey on AKARI and IRAS sources: A search for "low-velocity" water fountains Astrophysical Journal. 769. DOI: 10.1088/0004-637X/769/1/20 |
0.413 |
|
| 2013 |
Koning N, Kwok S, Steffen W. Post asymptotic giant branch bipolar reflection nebulae: Result of dynamical ejection or selective illumination? Astrophysical Journal. 765. DOI: 10.1088/0004-637X/765/2/92 |
0.376 |
|
| 2012 |
Chau W, Zhang Y, Nakashima J, Deguchi S, Kwok S. Molecular Line Observations of the Carbon-rich Circumstellar Envelope CIT 6 at 7 mm Wavelengths The Astrophysical Journal. 760: 66. DOI: 10.1088/0004-637X/760/1/66 |
0.375 |
|
| 2012 |
Nakashima JI, Koning N, Volgenau NH, Kwok S, Yung BHK, Zhang Y. CO structure of the 21 μm source IRAS 22272+5435: A sign of a jet launch? Astrophysical Journal. 759. DOI: 10.1088/0004-637X/759/1/61 |
0.439 |
|
| 2012 |
Zhang Y, Hsia C, Kwok S. Discovery of a Halo around the Helix Nebula NGC?7293 in the WISE All-sky Survey The Astrophysical Journal. 755: 53. DOI: 10.1088/0004-637X/755/1/53 |
0.421 |
|
| 2012 |
Zhang Y, Fang X, Chau W, Hsia C-, Liu X-, Kwok S, Koning N. [Fe III] EMISSION LINES IN THE PLANETARY NEBULA NGC 2392 The Astrophysical Journal. 754: 28. DOI: 10.1088/0004-637X/754/1/28 |
0.383 |
|
| 2012 |
Kwok S. The origin of unidentified infrared emission features in galaxies Proceedings of the International Astronomical Union. 8: 288. DOI: 10.1017/S1743921313001427 |
0.372 |
|
| 2012 |
Dishoeck EFv, Herbst E, Aikawa Y, Black JH, Blake G, Caselli P, Cernicharo J, Garay G, Guélin M, Jørgensen UG, Maier JP, Menten KM, Millar TJ, Kwok S, Salama F, et al. Triennial Report, International Astronomical Union, Division VI/Commission 34/Working Group Astrochemistry Transactions of the International Astronomical Union. 7: 236-239. DOI: 10.1017/S1743921312002876 |
0.368 |
|
| 2011 |
Kwok S. Delivery of complex organic compounds from evolved stars to the solar system. Origins of Life and Evolution of the Biosphere : the Journal of the International Society For the Study of the Origin of Life. 41: 497-502. PMID 22139515 DOI: 10.1007/S11084-011-9254-1 |
0.353 |
|
| 2011 |
Kwok S, Zhang Y. Mixed aromatic-aliphatic organic nanoparticles as carriers of unidentified infrared emission features. Nature. 479: 80-3. PMID 22031328 DOI: 10.1038/Nature10542 |
0.441 |
|
| 2011 |
Kwok S. Amorphous organic solids as a component of interstellar dust Earth, Planets and Space. 63: 1021-1026. DOI: 10.5047/Eps.2011.11.013 |
0.429 |
|
| 2011 |
Yung BHK, Nakashima JI, Imai H, Deguchi S, Diamond PJ, Kwok S. High velocity precessing jets from the water fountain IRAS18286-0959 revealed by very long baseline array observations Astrophysical Journal. 741. DOI: 10.1088/0004-637X/741/2/94 |
0.378 |
|
| 2011 |
Koning N, Kwok S, Steffen W. Morphology of the Red Rectangle Proto-planetary Nebula The Astrophysical Journal. 740: 27. DOI: 10.1088/0004-637X/740/1/27 |
0.359 |
|
| 2011 |
Zhang Y, Kwok S. Detection of C60 in the protoplanetary nebula IRAS 01005+7910 Astrophysical Journal. 730. DOI: 10.1088/0004-637X/730/2/126 |
0.333 |
|
| 2011 |
Chong S, Kwok S, Imai H, Tafoya D. Multipolar planetary nebulae : Not as geometrically diversified as thought Bulletin of the Society For Science On Form. 7: 184-187. DOI: 10.1017/S1743921312010927 |
0.375 |
|
| 2011 |
Kwok S. Historical overview of planetary nebulae research Proceedings of the International Astronomical Union. 7: 1-8. DOI: 10.1017/S1743921312010605 |
0.321 |
|
| 2011 |
Kwok S. Molecular evolution from AGB Stars to planetary nebulae Proceedings of the International Astronomical Union. 7: 203-215. DOI: 10.1017/S1743921311024987 |
0.342 |
|
| 2010 |
Deguchi S, Nakashima J, Zhang Y, Chong SSN, Koike K, Kwok S. SiO and H2O Maser Observations of Red Supergiants in Star Clusters Embedded in the Galactic Disk Publications of the Astronomical Society of Japan. 62: 391-407. DOI: 10.1093/Pasj/62.2.391 |
0.328 |
|
| 2010 |
Zhang Y, Kwok S, Hrivnak BJ. A Spitzer/Infrared Spectrograph Spectral Study of a Sample of Galactic Carbon-rich Proto-planetary Nebulae The Astrophysical Journal. 725: 990-1001. DOI: 10.1088/0004-637X/725/1/990 |
0.431 |
|
| 2010 |
Hsia CH, Kwok S, Zhang Y, Koning N, Volk K. An optical-infrared study of the young multipolar planetary nebula NGC 6644 Astrophysical Journal. 725: 173-183. DOI: 10.1088/0004-637X/725/1/173 |
0.439 |
|
| 2010 |
Huang Z, Hasegawa TI, Dinh-V-Trung, Kwok S, Muller S, Hirano N, Lim J, Mariappan CM, Lyo A. Detection of Multiple Bipolar Flows in NGC 7027 with Submillimeter Array The Astrophysical Journal. 722: 273-280. DOI: 10.1088/0004-637X/722/1/273 |
0.391 |
|
| 2010 |
Kwok S, Chong S, Hsia C, Zhang Y, Koning N. Discovery Of A Multipolar Structure With An Equatorial Disk In Ngc 6072 The Astrophysical Journal. 708: 93-100. DOI: 10.1088/0004-637X/708/1/93 |
0.36 |
|
| 2010 |
Nakashima J, Kwok S, Zhang Y, Koning N. Three-dimensional Structure of the Central Region of NGC 7027: A Quest for Trails of High-velocity Jets The Astronomical Journal. 140: 490-499. DOI: 10.1088/0004-6256/140/2/490 |
0.377 |
|
| 2010 |
Kwok S. Morphological structures of planetary nebulae Publications of the Astronomical Society of Australia. 27: 174-179. DOI: 10.1071/As09027 |
0.388 |
|
| 2009 |
Zhang Y, Kwok S. Planetary nebulae detected in the spitzer space telescope glimpse II legacy survey Astrophysical Journal. 706: 252-305. DOI: 10.1088/0004-637X/706/1/252 |
0.434 |
|
| 2009 |
Zhang Y, Kwok S, Nakashima J. A Molecular Line Survey Of The Extreme Carbon Star Crl 3068 At Millimeter Wavelengths The Astrophysical Journal. 700: 1262-1281. DOI: 10.1088/0004-637X/700/2/1262 |
0.318 |
|
| 2009 |
Dinh-V-Trung, Muller S, Lim J, Kwok S, Muthu C. Probing The Mass-Loss History Of The Yellow Hypergiant Irc+10420 The Astrophysical Journal. 697: 409-419. DOI: 10.1088/0004-637X/697/1/409 |
0.317 |
|
| 2009 |
Hrivnak BJ, Volk K, Kwok S. A spitzer study of 21 and 30μm emission in several galactic carbon-rich protoplanetary nebulae Astrophysical Journal. 694: 1147-1160. DOI: 10.1088/0004-637X/694/2/1147 |
0.475 |
|
| 2009 |
Nakashima J, Koning N, Kwok S, Zhang Y. MORPHOKINEMATIC PROPERTIES OF THE 21 μm SOURCE IRAS 07134+1005 The Astrophysical Journal. 692: 402-410. DOI: 10.1088/0004-637X/692/1/402 |
0.455 |
|
| 2009 |
Zhang Y, Kwok S, Dinh-V-Trung. A Molecular Line Survey Of The Highly Evolved Carbon Star Cit 6 The Astrophysical Journal. 691: 1660-1677. DOI: 10.1088/0004-637X/691/2/1660 |
0.472 |
|
| 2009 |
Maercker M, Schöier FL, Olofsson H, Bergman P, Frisk U, Hjalmarson Å, Justtanont K, Kwok S, Larsson B, Olberg M, Sandqvist A. Circumstellar water vapour in M-type AGB stars: constraints from H2O(110-101) lines obtained with Odin Astronomy and Astrophysics. 494: 243-252. DOI: 10.1051/0004-6361:200810017 |
0.409 |
|
| 2009 |
Kwok S. Delivery of complex organic compounds from planetary nebulae to the solar system International Journal of Astrobiology. 8: 161-167. DOI: 10.1017/S1473550409004492 |
0.376 |
|
| 2009 |
Kwok S. Organic matter in space: From star dust to the Solar System Astrophysics and Space Science. 319: 5-21. DOI: 10.1007/S10509-008-9965-6 |
0.388 |
|
| 2008 |
Kwok S, Chong S, Koning N, Hua T, Yan C. The true shapes of the Dumbbell and the ring The Astrophysical Journal. 689: 219-224. DOI: 10.1086/592103 |
0.349 |
|
| 2008 |
He JH, Dinh-V-Trung, Kwok S, Müller HSP, Zhang Y, Hasegawa T, Peng TC, Huang YC. A Spectral Line Survey in the 2 and 1.3 mm Windows toward the Carbon-rich Envelope of IRC +10216 Astrophysical Journal Supplement Series. 177: 275-325. DOI: 10.1086/587142 |
0.356 |
|
| 2008 |
Zhang Y, Kwok S, Dinh-V-Trung. A Spectral Line Survey of NGC 7027 at Millimeter Wavelengths The Astrophysical Journal. 678: 328-346. DOI: 10.1086/529428 |
0.431 |
|
| 2008 |
Dinh-V-Trung, Bujarrabal V, Castro-Carrizo A, Lim J, Kwok S. Massive Expanding Torus and Fast Outflow in Planetary Nebula NGC 6302 The Astrophysical Journal. 673: 934-941. DOI: 10.1086/524373 |
0.396 |
|
| 2008 |
Wang M, Hasegawa TI, Kwok S. The Detection of a Molecular Bipolar Flow in the Multipolar Planetary Nebula NGC 2440 The Astrophysical Journal. 673: 264-270. DOI: 10.1086/524185 |
0.438 |
|
| 2008 |
Kwok S, Zhang Y, Koning N, Huang HH, Churchwell E. Planetary nebulae detected in the Spitzer Space Telescope glimpse legacy survey Astrophysical Journal, Supplement Series. 174: 426-454. DOI: 10.1086/522623 |
0.43 |
|
| 2007 |
Kwok S. Astronomy: a new molecular factory. Nature. 447: 1063. PMID 17597751 DOI: 10.1038/4471063A |
0.388 |
|
| 2007 |
Volk K, Kwok S, Hrivnak BJ. Possible precession motion in the bipolar proto-planetary nebula IRAS 17441-2411 Astrophysical Journal. 670: 1137-1141. DOI: 10.1086/522225 |
0.405 |
|
| 2007 |
Nakashima J, Fong D, Hasegawa T, Hirano N, Koning N, Kwok S, Lim J, Dinh-Van-Trung, Young K. Submillimeter Array Observation of the Proto-Planetary Nebula CRL 618 in the CO J=6-5 Line The Astronomical Journal. 134: 2035-2045. DOI: 10.1086/521985 |
0.372 |
|
| 2007 |
Lee T-, Lim J, Kwok S. Optically Thick Radio Cores of Narrow-Waist Bipolar Nebulae The Astrophysical Journal. 665: 341-354. DOI: 10.1086/519270 |
0.382 |
|
| 2007 |
Deguchi S, Nakashima J, Kwok S, Koning N. Identification of Very Red Counterparts of SiO Maser and OH/IR Objects in the GLIMPSE Survey The Astrophysical Journal. 664: 1130-1143. DOI: 10.1086/519154 |
0.451 |
|
| 2007 |
Hrivnak BJ, Geballe TR, Kwok S. A study of the 3.3 and 3.4 μm emission features in proto-planetary nebulae The Astrophysical Journal. 662: 1059-1066. DOI: 10.1086/518109 |
0.473 |
|
| 2007 |
Kwok S, Hsia CH. Multiple coaxial rings in the bipolar nebula hubble 12 Astrophysical Journal. 660: 341-345. DOI: 10.1086/513096 |
0.351 |
|
| 2007 |
Goto M, Kwok S, Takami H, Hayashi M, Gaessler W, Hayano Y, Iye M, Kamata Y, Kanzawa T, Kobayashi N, Minowa Y, Nedachi K, Oya S, Pyo TS, Saint-Jacques D, et al. Diffraction-limited 3 μm spectroscopy of IRAS 04296+3429 and IRAS 05341+0852: Spatial extent of hydrocarbon dust emission and dust evolutionary sequence Astrophysical Journal. 662: 389-394. DOI: 10.1086/511126 |
0.457 |
|
| 2007 |
Muller S, Dinh-V-Trung, Lim J, Hirano N, Muthu C, Kwok S. The Molecular Envelope around the Red Supergiant VY CMa The Astrophysical Journal. 656: 1109-1120. DOI: 10.1086/510513 |
0.437 |
|
| 2007 |
Olofsson AOH, Persson CM, Koning N, Bergman P, Bernath PF, Black JH, Frisk U, Geppert W, Hasegawa TI, Hjalmarson Å, Kwok S, Larsson B, Lecacheux A, Nummelin A, Olberg M, et al. A spectral line survey of Orion KL in the bands 486-492 and 541-577 GHz with the Odin satellite: I. The observational data Astronomy and Astrophysics. 476: 791-806. DOI: 10.1051/0004-6361:20077229 |
0.404 |
|
| 2007 |
Persson CM, Olofsson AOH, Koning N, Bergman P, Bernath P, Black JH, Frisk U, Geppert W, Hasegawa TI, Hjalmarson Å, Kwok S, Larsson B, Lecacheux A, Nummelin A, Olberg M, et al. A spectral line survey of Orion KL in the bands 486-492 and 541-577 GHz with the Odin satellite II. Data analysis Astronomy and Astrophysics. 476: 807-827. DOI: 10.1051/0004-6361:20077225 |
0.39 |
|
| 2007 |
Larsson B, Liseau R, Pagani L, Bergman P, Bernath P, Biver N, Black JH, Booth RS, Buat V, Crovisier J, Curry CL, Dahlgren M, Encrenaz PJ, Falgarone E, Feldman PA, ... ... Kwok S, et al. Molecular oxygen in the ρ Ophiuchi cloud Astronomy and Astrophysics. 466: 999-1003. DOI: 10.1051/0004-6361:20065500 |
0.377 |
|
| 2007 |
Biver N, Bockelée-Morvan D, Crovisier J, Lecacheux A, Frisk U, Hjalmarson Å, Olberg M, Florén H, Sandqvist A, Kwok S. Submillimetre observations of comets with Odin: 2001 - 2005 Planetary and Space Science. 55: 1058-1068. DOI: 10.1016/J.Pss.2006.11.010 |
0.339 |
|
| 2007 |
Biver N, Bockelée-Morvan D, Boissier J, Crovisier J, Colom P, Lecacheux A, Moreno R, Paubert G, Lis DC, Sumner M, Frisk U, Hjalmarson Å, Olberg M, Winnberg A, Florén H, ... ... Kwok S, et al. Radio observations of Comet 9P/Tempel 1 before and after Deep Impact Icarus. 187: 253-271. DOI: 10.1016/J.Icarus.2006.10.011 |
0.37 |
|
| 2007 |
Kwok S. Enrichment of the solar system by organic compounds delivered from evolved stars Advances in Space Research. 40: 1613-1619. DOI: 10.1016/J.Asr.2007.05.016 |
0.403 |
|
| 2007 |
Kwok S. Molecules and solids in planetary nebulae and proto-planetary nebulae Advances in Space Research. 40: 655-658. DOI: 10.1016/J.Asr.2007.04.082 |
0.404 |
|
| 2006 |
Volk K, Hrivnak BJ, Su KYL, Kwok S. An infrared imaging study of the bipolar proto-planetary nebula IRAS 16594-4656 Astrophysical Journal. 651: 294-300. DOI: 10.1086/507666 |
0.435 |
|
| 2006 |
Hrivnak BJ, Kelly DM, Su KYL, Kwok S, Sahai R. A study of H2 emission in the bipolar proto-planetary nebula IRAS 17150-3224 Astrophysical Journal. 650: 237-245. DOI: 10.1086/506014 |
0.409 |
|
| 2006 |
Chiu P, Hoang C, Dinh-V-Trung, Lim J, Kwok S, Hirano N, Muthu C. A Slowly Expanding Disk and Fast Bipolar Outflow from the S Star π1 Gruis The Astrophysical Journal. 645: 605-612. DOI: 10.1086/504309 |
0.423 |
|
| 2006 |
Chang H, Chen K, Kwok S. Nanodiamond As A Possible Carrier Of Extended Red Emission The Astrophysical Journal. 639. DOI: 10.1086/502677 |
0.339 |
|
| 2006 |
Muthumariappan C, Kwok S, Volk K. Subarcsecond mid-infrared imaging of dust in the bipolar nebula Hen 3-401 Astrophysical Journal. 640: 353-359. DOI: 10.1086/500041 |
0.438 |
|
| 2006 |
Hasegawa TI, Kwok S, Koning N, Volk K, Justtanont K, Olofsson H, Schöier FL, Sandqvist A, Hjalmarson Å, Olberg M, Winnberg A, Nyman L-, Frisk U. Observations of the Circumstellar Water 110-->101 and Ammonia 10-->00 Lines in IRC +10216 by the Odin Satellite The Astrophysical Journal. 637: 791-797. DOI: 10.1086/498561 |
0.427 |
|
| 2006 |
Kwok S. Synthesis of organic compounds in planetary nebulae and proto-planetary nebulae Aip Conference Proceedings. 855: 154-164. DOI: 10.1063/1.2359551 |
0.327 |
|
| 2005 |
Lee TH, Kwok S. Dust extinction in compact planetary nebulae Astrophysical Journal. 632: 340-354. DOI: 10.1086/432875 |
0.409 |
|
| 2005 |
Sengupta S, Kwok S. Polarization of L dwarfs by dust scattering Astrophysical Journal. 625: 996-1003. DOI: 10.1086/429659 |
0.302 |
|
| 2005 |
Justtanont K, Bergman P, Larsson B, Olofsson H, Schöier FL, Frisk U, Hasegawa T, Hjalmarson A, Kwok S, Olberg M, Sandqvist A, Volk K, Elitzur M. W Hya through the eye of Odin satellite observations of circumstellar submillimetre H2O line emission Astronomy and Astrophysics. 439: 627-633. DOI: 10.1051/0004-6361:20052969 |
0.409 |
|
| 2005 |
Biver N, Lecacheux A, Encrenaz T, Lellouch E, Baron P, Crovisier J, Frisk U, Hjalmarson Å, Olberg M, Sandqvist A, Kwok S. Wide-band observations of the 557 GHz water line in Mars with Odin Astronomy and Astrophysics. 435: 765-772. DOI: 10.1051/0004-6361:20042247 |
0.367 |
|
| 2004 |
Kwok S. The synthesis of organic and inorganic compounds in evolved stars. Nature. 430: 985-91. PMID 15329712 DOI: 10.1038/Nature02862 |
0.405 |
|
| 2004 |
Volk K, Hrivnak BJ, Kwok S. H2 imaging of three proto-planetary and young planetary nebulae Astrophysical Journal. 616: 1181-1187. DOI: 10.1086/425124 |
0.378 |
|
| 2004 |
Gupta R, Singh HP, Volk K, Kwok S. Automated classification of 2000 bright iras sources Astrophysical Journal, Supplement Series. 152: 201-209. DOI: 10.1086/420967 |
0.339 |
|
| 2003 |
Su KYL, Hrivnak BJ, Kwok S, Sahai R. High-resolution near-infrared imaging and polarimetry of four proto-planetary nebulae Astronomical Journal. 126: 848-862. DOI: 10.1086/376471 |
0.373 |
|
| 2003 |
Hasegawa TI, Kwok S. Neutral carbon in post-asymptotic giant branch stars and planetary nebulae Astrophysical Journal. 585: 475-481. DOI: 10.1086/345950 |
0.37 |
|
| 2003 |
Pagani L, Olofsson AOH, Bergman P, Bernath P, Black JH, Booth RS, Buat V, Crovisier J, Curry CL, Encrenaz PJ, Falgarone E, Feldman PA, Fich M, Floren HG, Frisk U, ... ... Kwok S, et al. Low upper limits on the O2abundance from the Odin satellite Astronomy & Astrophysics. 402: L77-L81. DOI: 10.1051/0004-6361:20030344 |
0.341 |
|
| 2003 |
Liseau R, Larsson B, Brandeker A, Bergman P, Bernath P, Black JH, Booth R, Buat V, Curry C, Encrenaz P, Falgarone E, Feldman P, Fich M, Florén H, Frisk U, ... ... Kwok S, et al. First detection of NH3 (10 -g 00) from a low mass cloud core. On the low ammonia abundance of the rho Oph A core Astronomy and Astrophysics. 402. DOI: 10.1051/0004-6361:20030343 |
0.323 |
|
| 2003 |
Sandqvist A, Bergman P, Black JH, Booth R, Buat V, Curry CL, Encrenaz P, Falgarone E, Feldman P, Fich M, Floren HG, Frisk U, Gerin M, Gregersen EM, Harju J, ... ... Kwok S, et al. Odin observations of H 2 O in the Galactic Centre Astronomy and Astrophysics. 402. DOI: 10.1051/0004-6361:20030341 |
0.443 |
|
| 2003 |
Wilson CD, Mason A, Gregersen E, Olofsson AOH, Bergman P, Booth R, Boudet N, Buat V, Curry CL, Encrenaz P, Falgarone E, Feldman P, Fich M, Floren HG, Frisk U, ... ... Kwok S, et al. Submillimeter emission from water in the W3 region Astronomy & Astrophysics. 402: L59-L62. DOI: 10.1051/0004-6361:20030340 |
0.39 |
|
| 2003 |
Olofsson AOH, Olofsson G, Hjalmarson Å, Bergman P, Black JH, Booth RS, Buat V, Curry CL, Encrenaz PJ, Falgarone E, Feldman P, Fich M, Florén HG, Frisk U, Gerin M, ... ... Kwok S, et al. Odin water mapping in the Orion KL region Astronomy & Astrophysics. 402: L47-L54. DOI: 10.1051/0004-6361:20030339 |
0.383 |
|
| 2003 |
Lecacheux A, Biver N, Crovisier J, Bockelée-Morvan D, Baron P, Booth RS, Encrenaz P, Florén H-, Frisk U, Hjalmarson Å, Kwok S, Mattila K, Nordh L, Olberg M, Olofsson AOH, et al. Observations of water in comets with Odin Astronomy and Astrophysics. 402. DOI: 10.1051/0004-6361:20030338 |
0.361 |
|
| 2003 |
Hjalmarson A, Frisk U, Olberg M, Bergman P, Bernath P, Biver N, Black JH, Booth RS, Buat V, Crovisier J, Curry CL, Dahlgren M, Encrenaz PJ, Falgarone E, Feldman PA, ... ... Kwok S, et al. Highlights from the first year of Odin observations Astronomy and Astrophysics. 402: L39-L46. DOI: 10.1051/0004-6361:20030337 |
0.367 |
|
| 2003 |
Nordh HL, Von Schéele F, Frisk U, Ahola K, Booth RS, Encrenaz PJ, Hjalmarson A, Kendall D, Kyrölä E, Kwok S, Lecacheux A, Leppelmeier G, Llewellyn EJ, Mattila K, Mégie G, et al. The odin orbital observatory Astronomy and Astrophysics. 402: L21-L25. DOI: 10.1051/0004-6361:20030334 |
0.335 |
|
| 2002 |
Ennico K, Sandford S, Allamandola L, Bregman J, Cohen M, Cruikshank D, Greene T, Hudgins D, Kwok S, Lord S, Madden S, McCreight C, Roellig T, Strecker D, Tielens A, et al. The astrobiology explorer (ABE) MIDEX mission concept - Identifying organic molecules in space Proceedings of Spie - the International Society For Optical Engineering. 4850: 1149-1160. DOI: 10.1117/12.461145 |
0.423 |
|
| 2002 |
Kwok S, Volk K, Hrivnak BJ. Subarcsecond mid-infrared imaging of two post-asymptotic giant branch 21 micron sources Astrophysical Journal. 573: 720-727. DOI: 10.1086/340654 |
0.42 |
|
| 2002 |
Volk K, Kwok S, Hrivnak BJ, Szczerba R. Infrared Space Observatory observations of the unidentified 30 micron feature in proto-planetary nebulae Astrophysical Journal. 567: 412-422. DOI: 10.1086/337992 |
0.42 |
|
| 2001 |
Hasegawa TI, Kwok S. Molecular line emissions from the photodissociation region of NGC 7027 Astrophysical Journal. 562: 824-841. DOI: 10.1086/323856 |
0.428 |
|
| 2001 |
Su KYL, Hrivnak BJ, Kwok S. High-Resolution Imaging of Proto-Planetary Nebulae: The Effects of Orientation* The Astronomical Journal. 122: 1525-1537. DOI: 10.1086/322098 |
0.413 |
|
| 2001 |
Kwok S, Volk K, Bernath P. On the origin of infrared plateau features in proto-planetary nebulae Astrophysical Journal. 554. DOI: 10.1086/320913 |
0.407 |
|
| 2001 |
Hrivnak BJ, Kwok S, Su KYL. The Discovery of Circumstellar Arcs around Two Bipolar Proto-planetary Nebulae The Astronomical Journal. 121: 2775-2780. DOI: 10.1086/320400 |
0.427 |
|
| 2001 |
Kwok S, Hrivnak BJ. Origin of 21-Micron Emission Feature Is a Mystery Physics Today. 54: 81-82. DOI: 10.1063/1.1359722 |
0.365 |
|
| 2001 |
Chen PS, Szczerba R, Kwok S, Volk K. Properties of OH/IR stars with IRAS LRS spectra Astronomy and Astrophysics. 368: 1006-1020. DOI: 10.1051/0004-6361:20010098 |
0.482 |
|
| 2000 |
Kwok S, Hrivnak BJ, Su KYL. Discovery of a disk-collimated bipolar outflow in the proto-planetary nebula IRAS 17106-3046 The Astrophysical Journal. 544. DOI: 10.1086/317304 |
0.434 |
|
| 2000 |
Leahy DA, Kwok S, Yin D. Extended X-Ray Emission from the Planetary Nebula BD +30°3639 The Astrophysical Journal. 540: 442-446. DOI: 10.1086/309332 |
0.378 |
|
| 2000 |
Hrivnak BJ, Volk K, Kwok S. 2-45 Micron Infrared Spectroscopy of Carbon-rich Proto-Planetary Nebulae The Astrophysical Journal. 535: 275-292. DOI: 10.1086/308823 |
0.408 |
|
| 2000 |
Hasegawa T, Volk K, Kwok S. A Chemical Model of the Neutral Envelope of the Planetary Nebula NGC 7027 The Astrophysical Journal. 532: 994-1005. DOI: 10.1086/308610 |
0.368 |
|
| 2000 |
Volk K, Xiong G, Kwok S. Infrared Space Observatory Spectroscopy of Extreme Carbon Stars The Astrophysical Journal. 530: 408-417. DOI: 10.1086/308355 |
0.502 |
|
| 1999 |
Volk K, Kwok S, Hrivnak BJ. High-Resolution Infrared Space Observatory Spectroscopy of the Unidentified 21 Micron Feature* The Astrophysical Journal. 516. DOI: 10.1086/312007 |
0.411 |
|
| 1999 |
Hrivnak BJ, Kwok S, Su KYL. The Discovery of Two New Bipolar Proto-Planetary Nebulae: IRAS 16594–4656 and IRAS 17245–3951* The Astrophysical Journal. 524: 849-856. DOI: 10.1086/307822 |
0.49 |
|
| 1999 |
Hrivnak BJ, Kwok S. Discovery of two new, carbon-rich proto-planetary nebulae: IRAS Z02229+6208 and IRAS 07430+1115 Astrophysical Journal. 513: 869-878. DOI: 10.1086/306873 |
0.465 |
|
| 1999 |
Hrivnak BJ, Langill PP, Su KYL, Kwok S. Subarcsecond Optical Imaging of Proto-Planetary Nebulae The Astrophysical Journal. 513: 421-427. DOI: 10.1086/306821 |
0.335 |
|
| 1999 |
Hua CT, Kwok S. Monochromatic morphologies of Abell planetary nebulae Astronomy and Astrophysics Supplement Series. 138: 275-297. DOI: 10.1051/Aas:1999107 |
0.358 |
|
| 1999 |
Kwok S, Volk K, Hrivnak BJ. Chemical evolution of carbonaceous materials in the last stages of stellar evolution Astronomy and Astrophysics. 350. |
0.31 |
|
| 1998 |
Zhang CY, Kwok S. A morphological study of planetary nebulae Astrophysical Journal, Supplement Series. 117: 341-359. DOI: 10.1086/313118 |
0.382 |
|
| 1998 |
Kwok S, Su KYL, Hrivnak BJ. Hubble Space Telescope V-Band Imaging of the Bipolar Proto-Planetary Nebula IRAS 17150?3224 The Astrophysical Journal. 501. DOI: 10.1086/311430 |
0.385 |
|
| 1998 |
Su KYL, Volk K, Kwok S, Hrivnak BJ. Hubble space telescope imaging of iras 17441-2411: A case study of a bipolar nebula with a circumstellar disk Astrophysical Journal. 508: 744-751. DOI: 10.1086/306449 |
0.417 |
|
| 1997 |
Kwok S, Volk K, Bidelman WP. Classification and identification of IRAS sources with low-resolution spectra Astrophysical Journal, Supplement Series. 112: 557-584. DOI: 10.1086/313038 |
0.395 |
|
| 1997 |
Volk K, Kwok S. A self-consistent photoionization-dust continuum-molecular line transfer model of NGC 7027 Astrophysical Journal. 477: 722-731. DOI: 10.1086/303734 |
0.408 |
|
| 1997 |
Hrivnak BJ, Volk K, Kwok S. ISO SWS spectroscopy of proto-planetary nebulae Astrophysics and Space Science. 255: 477-478. DOI: 10.1023/A:1001526612662 |
0.393 |
|
| 1996 |
Kwok S, Hrivnak BJ, Zhang CY, Langill PL. High-resolution Imaging of Two Bipolar Proto—planetary Nebulae The Astrophysical Journal. 472: 287-293. DOI: 10.1086/178063 |
0.31 |
|
| 1996 |
Aaquist OB, Kwok S. Radio morphologies of planetary nebulae Astrophysical Journal. 462: 813-824. DOI: 10.1086/177196 |
0.415 |
|
| 1995 |
Omont A, Moseley SH, Cox P, Glaccum W, Casey S, Forveille T, Chan KW, Szczerba R, Loewenstein RF, Harvey PM, Kwok S. The 30 micron emission band in carbon-rich pre-planetary nebulae The Astrophysical Journal. 454: 819-825. DOI: 10.1086/176534 |
0.35 |
|
| 1995 |
Kwok S, Hrivnak BJ, Geballe TR. Four newly identified sources with 21 micron emission The Astrophysical Journal. 454: 394. DOI: 10.1086/176490 |
0.349 |
|
| 1994 |
Hrivnak BJ, Kwok S, Geballe TR. Near-infrared spectroscopy of proto-planetary nebulae Astrophysical Journal. 420: 783-796. DOI: 10.1086/173602 |
0.392 |
|
| 1994 |
Langill PP, Kwok S, Hrivnak BJ. High-resolution optical imaging of the 'Frosty Leo' nebula Publications of the Astronomical Society of the Pacific. 106: 736. DOI: 10.1086/133437 |
0.355 |
|
| 1994 |
Kwok S. Planetary Nebulae: A Modern View Publications of the Astronomical Society of the Pacific. 106: 344. DOI: 10.1086/133384 |
0.412 |
|
| 1994 |
Kwok S, Hrivnak BJ, Geballe TR. Circumstellar Media in the Late Stages of Stellar Evolution: Circumstellar dust in PN and PPN Cellular and Molecular Life Sciences. 296. DOI: 10.1017/Cbo9780511564628.037 |
0.328 |
|
| 1993 |
Kwok S. Proto-planetary nebulae Annual Review of Astronomy and Astrophysics. 31: 63-92. DOI: 10.1146/Annurev.Aa.31.090193.000431 |
0.333 |
|
| 1993 |
Chen PS, Kwok S. Circumstellar properties of S stars. I. Dust features Astrophysical Journal. 416: 769-786. DOI: 10.1086/173276 |
0.465 |
|
| 1993 |
Kwok S, Hrivnak BJ, Langill PP. Photometry and Imaging of the Peculiar Planetary Nebula IRAS 21282+5050 The Astrophysical Journal. 408: 586-592. DOI: 10.1086/172617 |
0.477 |
|
| 1993 |
Volk K, Kwok S, Woodsworth AW. CO observations of candidates for carbon-rich asymptotic giant branch and post-asymptotic giant branch stars Astrophysical Journal. 402: 292-302. DOI: 10.1086/172132 |
0.46 |
|
| 1993 |
Kwok S, Aaquist OB. VLA 8.4 GHz continuum observations of compact planetary nebulae Publications of the Astronomical Society of the Pacific. 105: 1456-1464. DOI: 10.1086/133328 |
0.412 |
|
| 1993 |
Kwok S, Chan SJ. Carbon stars with circumstellar silicate features Astronomical Journal. 106: 2140-2153. DOI: 10.1086/116791 |
0.452 |
|
| 1993 |
Zhang CY, Kwok S. Trace of planetary nebula evolution by distance-independent parameters Astrophysical Journal, Supplement Series. 88: 137-167. |
0.304 |
|
| 1992 |
Geballe TR, Tielens AGGM, Kwok S, Hrivnak BJ. Unusual 3 micron emission features in three proto-planetary nebulae The Astrophysical Journal. 387: L89. DOI: 10.1086/186312 |
0.407 |
|
| 1992 |
Volk K, Kwok S, Langill PP. Candidates for extreme carbon stars Astrophysical Journal. 391: 285-294. DOI: 10.1086/171344 |
0.431 |
|
| 1992 |
Marshall CR, Leahy DA, Kwok S. Submillimeter Observations of Circumstellar Dust Publications of the Astronomical Society of the Pacific. 104: 397-401. DOI: 10.1086/133011 |
0.435 |
|
| 1992 |
Kwok S. Planetary nebula formation Highlights of Astronomy. 9: 631-633. DOI: 10.1017/S1539299600009886 |
0.326 |
|
| 1991 |
Volk K, Kwok S, Stencel RE, Brugel E. New low-resolution spectrometer spectra for IRAS sources Astrophysical Journal Supplement Series. 77: 607-645. DOI: 10.1086/191617 |
0.388 |
|
| 1991 |
Chan SJ, Kwok S. New candidates for carbon stars with silicate features The Astrophysical Journal. 383: 837-841. DOI: 10.1086/170841 |
0.453 |
|
| 1991 |
Hrivnak BJ, Kwok S. The carbon-rich proto planetary nebula IRAS 22272 + 5435 Astrophysical Journal. 371: 631-635. DOI: 10.1086/169928 |
0.484 |
|
| 1991 |
Hrivnak BJ, Kwok S. On the possible bipolar nature of 21 micron IRAS sources Astrophysical Journal. 368: 564-569. DOI: 10.1086/169720 |
0.412 |
|
| 1991 |
Bryan GL, Kwok S. Energy distributions of symbiotic novae Astrophysical Journal. 368: 252-260. DOI: 10.1086/169688 |
0.4 |
|
| 1991 |
Aaquist OB, Kwok S. High-resolution radio continuum observations of compact planetary nebulae Astrophysical Journal. 378: 599-610. |
0.311 |
|
| 1990 |
Kwok S, Hrivnak BJ, Geballe TR. Unusual infrared line profiles in the post-asymptotic giant branch star HD 56126 The Astrophysical Journal. 360. DOI: 10.1086/185803 |
0.495 |
|
| 1990 |
Bryan GL, Volk K, Kwok S. On the formation of carbon stars Astrophysical Journal. 365: 301-311. DOI: 10.1086/169483 |
0.39 |
|
| 1989 |
Kwok S, Volk KM, Hrivnak BJ. A 21 micron emission feature in four proto-planetary nebulae The Astrophysical Journal. 345. DOI: 10.1086/185550 |
0.424 |
|
| 1989 |
Hrivnak BJ, Kwok S, Volk KM. A study of several F and G supergiant-like stars with infrared excesses as candidates for proto-planetary nebulae The Astrophysical Journal. 346: 265-276. DOI: 10.1086/168007 |
0.407 |
|
| 1989 |
Volk KM, Kwok S. Evolution of protoplanetary nebulae The Astrophysical Journal. 342: 345-363. DOI: 10.1086/167597 |
0.448 |
|
| 1989 |
Galt JA, Kwok S, Frankow J. A search for 1612 MHz OH emission from IRAS sources with silicate features The Astronomical Journal. 98: 2182. DOI: 10.1086/115288 |
0.447 |
|
| 1988 |
Hrivnak BJ, Kwok S, Volk KM. The high-latitude F supergiant IRAS 18095 + 2704 - A proto-planetary nebula The Astrophysical Journal. 331: 832-837. DOI: 10.1086/166603 |
0.372 |
|
| 1988 |
Volk K, Kwok S. Spectral evolution of asymptotic giant branch stars The Astrophysical Journal. 331: 435-462. DOI: 10.1086/166570 |
0.309 |
|
| 1988 |
Sun Jin, Kwok S. Kinematic structure of OH/IR stars Vistas in Astronomy. 31: 373-378. DOI: 10.1016/0083-6656(88)90230-9 |
0.449 |
|
| 1987 |
Kwok S, Boreiko RT, Hrivnak BJ. Ground-based infrared observations of variable IRAS sources as candidates for late asymptotic giant branch stars The Astrophysical Journal. 321: 975. DOI: 10.1086/165691 |
0.484 |
|
| 1987 |
Leahy DA, Kwok S, Arquilla RA. CO Observations of IRAS Sources with 11.3 Micron Silicon Carbide Dust Features The Astrophysical Journal. 320: 825. DOI: 10.1086/165598 |
0.35 |
|
| 1987 |
Volk K, Kwok S. On the contribution of interstellar extinction to the 10 micron dust feature in OH/IR stars The Astrophysical Journal. 315: 654. DOI: 10.1086/165167 |
0.45 |
|
| 1987 |
Kwok S, Boreiko RT, Hrivnak BJ. Ground-based observations of IRAS candidates for late asymptotic giant branch stars The Astrophysical Journal. 312: 303. DOI: 10.1086/164874 |
0.466 |
|
| 1987 |
Kwok S. Effects of mass loss on the late stages of stellar evolution Physics Reports. 156: 111-146. DOI: 10.1016/0370-1573(87)90075-5 |
0.408 |
|
| 1987 |
Volk K, Kwok S. Evolution of the Infrared Spectra of AGB Stars Bulletin of the American Astronomical Society. 18: 305-308. DOI: 10.1007/978-94-009-3813-7_49 |
0.463 |
|
| 1986 |
Arquilla R, Leahy DA, Kwok S. CO observations of sources from IRAS Circular No. 9 Monthly Notices of the Royal Astronomical Society. 220: 125-131. DOI: 10.1093/Mnras/220.1.125 |
0.318 |
|
| 1986 |
Kwok S, Hrivnak BJ, Milone EF. Ground-based and IRAS Observations of Compact Planetary Nebulae The Astrophysical Journal. 303: 451. DOI: 10.1086/164090 |
0.39 |
|
| 1986 |
Kwok S, Hrivnak BJ, Milone EF, Boreiko RT. Ground-Based and IRAS Observations of Proto-Planetary Nebulae Astrophysics and Space Science Library. 124: 127-128. DOI: 10.1007/978-94-009-4672-9_28 |
0.471 |
|
| 1985 |
Kwok S. On the distances of planetary nebulae The Astrophysical Journal. 290: 568-577. DOI: 10.1086/163013 |
0.398 |
|
| 1985 |
Kwok S. High-resolution radio observations of compact planetary nebulae The Astronomical Journal. 90: 49. DOI: 10.1086/113707 |
0.407 |
|
| 1983 |
Purton CR, Kwok S, Feldman PA. The radio history of HM Sagittae. The Astronomical Journal. 88: 1825-1831. DOI: 10.1086/113474 |
0.33 |
|
| 1982 |
Kwok S. From Red Giants to Planetary Nebulae The Astrophysical Journal. 258: 280-288. DOI: 10.1086/160078 |
0.392 |
|
| 1982 |
Bell MB, Kwok S, Matthews HE, Feldman PA. Further observations of the microwave inversion lines of ammonia in IRC+10/sup 0/216 The Astronomical Journal. 87: 404. DOI: 10.1086/113113 |
0.306 |
|
| 1982 |
Bell MB, Feldman PA, Kwok S, Matthews HE. Detection of HC11N in IRC + 10°216 Nature. 295: 389-391. DOI: 10.1038/295389A0 |
0.429 |
|
| 1981 |
Kwok S, Feldman PA. Discovery of radio brightening in AFGL 618. The Astrophysical Journal. 247. DOI: 10.1086/183591 |
0.373 |
|
| 1981 |
Kwok S, Purton CR, Keenan DW. Radio observations of compact planetary nebulae The Astrophysical Journal. 250: 232. DOI: 10.1086/159367 |
0.456 |
|
| 1981 |
Kwok S. On the radio properties of V645 Cygni Publications of the Astronomical Society of the Pacific. 93: 361-363. DOI: 10.1086/130838 |
0.436 |
|
| 1980 |
Kwok S. Dust in planetary nebulae The Astrophysical Journal. 236: 592-597. DOI: 10.1086/157777 |
0.491 |
|
| 1979 |
Kwok S, Purton CR. HM Sagittae as a young planetary nebula. The Astrophysical Journal. 229: 187-195. DOI: 10.1086/156944 |
0.428 |
|
| 1979 |
Gregory PC, Taylor AR, Crampton D, Hutchings JB, Hjellming RM, Hogg D, Hvatum H, Gottlieb EW, Feldman PA, Kwok S. The radio, optical, X-ray, gamma-ray star LSI +61 deg 303 The Astronomical Journal. 84: 1030-1036. DOI: 10.1086/112508 |
0.313 |
|
| 1978 |
Kwok S, Purton CR, FitzGerald PM. On the origin of planetary nebulae. The Astrophysical Journal. 219. DOI: 10.1086/182621 |
0.415 |
|
| 1978 |
Kwok S. Dynamic structure of dark molecular clouds The Astrophysical Journal. 225: 107. DOI: 10.1086/156472 |
0.357 |
|
| 1977 |
Kwok S. On the nature of the peculiar emission object V1016 Cygni. The Astrophysical Journal. 214: 437. DOI: 10.1086/155269 |
0.447 |
|
| 1977 |
Gregory PC, Kwok S, Seaquist ER. Radio emission from AG Pegasi. The Astrophysical Journal. 211: 429-431. DOI: 10.1086/154948 |
0.363 |
|
| 1977 |
Koch RH, Piirola V, Gibson DM, Gregory PC, Kwok S, Seaquist ER, Kondo Y, McCluskey GE, Leung K, Hilditch RW, Hill G, Popper DM, Wright KO, Faraggiana R, Henrichs HF, et al. Close Binary Stars Transactions of the International Astronomical Union. 17: 277-286. DOI: 10.1007/978-94-010-1257-7_36 |
0.326 |
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