K
Kailash C. Sahu
Researcher at Space Telescope Science Institute
Publications - 317
Citations - 15308
Kailash C. Sahu is an academic researcher from Space Telescope Science Institute. The author has contributed to research in topics: Gravitational microlensing & Planet. The author has an hindex of 65, co-authored 313 publications receiving 14609 citations. Previous affiliations of Kailash C. Sahu include Max Planck Society & European Southern Observatory.
Papers
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Journal ArticleDOI
Long γ-ray bursts and core-collapse supernovae have different environments
A. S. Fruchter,Andrew J. Levan,Andrew J. Levan,Andrew J. Levan,L. G. Strolger,L. G. Strolger,Paul Vreeswijk,Stephen E. Thorsett,D. Bersier,D. Bersier,I. Burud,I. Burud,J. M. Castro Cerón,J. M. Castro Cerón,A. J. Castro-Tirado,Christopher J. Conselice,Christopher J. Conselice,Tomas Dahlen,Henry C. Ferguson,Johan P. U. Fynbo,Peter M. Garnavich,R. A. Gibbons,R. A. Gibbons,Javier Gorosabel,Javier Gorosabel,Theodore R. Gull,Jens Hjorth,Stephen T. Holland,Chryssa Kouveliotou,Zoltan G. Levay,Mario Livio,M. R. Metzger,Peter Nugent,Larry Petro,Elena Pian,James E. Rhoads,Adam G. Riess,Kailash C. Sahu,Alain Smette,Nial R. Tanvir,Ralph A. M. J. Wijers,S. E. Woosley +41 more
TL;DR: In this article, the authors show that long-duration γ-ray bursts are associated with the most extremely massive stars and may be restricted to galaxies of limited chemical evolution. But they also show that the host galaxies of the long-drone bursts are significantly fainter and more irregular than the hosts of the core-collapse supernovae.
Journal ArticleDOI
Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing
J. P. Beaulieu,David P. Bennett,Pascal Fouqué,Andrew Williams,Martin Dominik,U. G. Jørgensen,D. Kubas,Arnaud Cassan,C. Coutures,J. G. Greenhill,K. M. Hill,J. W. Menzies,Penny D. Sackett,Michael D. Albrow,S. Brillant,J. A. R. Caldwell,J. J. Calitz,K. H. Cook,E. Corrales,M. Desort,S. Dieters,D. Dominis,J. Donatowicz,M. Hoffman,Stephen R. Kane,J. B. Marquette,R. M. Martin,P. J. Meintjes,K. R. Pollard,Kailash C. Sahu,C. Vinter,Joachim Wambsganss,K. Woller,Keith Horne,Iain A. Steele,D. M. Bramich,D. M. Bramich,Martin Burgdorf,Colin Snodgrass,M. F. Bode,Andrzej Udalski,Michał K. Szymański,M. Kubiak,T. Wiȩckowski,Grzegorz Pietrzyński,Igor Soszyński,O. Szewczyk,Łukasz Wyrzykowski,Bohdan Paczynski,Fumio Abe,Ian A. Bond,T. R. Britton,T. R. Britton,A. C. Gilmore,John B. Hearnshaw,Yoshitaka Itow,Kisaku Kamiya,P. M. Kilmartin,A. V. Korpela,Kimiaki Masuda,Yutaka Matsubara,M. Motomura,Yasushi Muraki,Shota Nakamura,C. Okada,Kouji Ohnishi,Nicholas J. Rattenbury,Takashi Sako,Susumu Sato,Misao Sasaki,T. Sekiguchi,Denis J. Sullivan,P. J. Tristram,Philip Yock,T. Yoshioka +74 more
TL;DR: The detection of a cool, sub-Neptune-mass planets may be more common than gas giant planets, as predicted by the core accretion theory, and is suggested to name OGLE-2005-BLG-390Lb, indicating a planetary mass companion to the lens star of the microlensing event.
Journal ArticleDOI
One or more bound planets per Milky Way star from microlensing observations
Arnaud Cassan,Arnaud Cassan,D. Kubas,D. Kubas,J. P. Beaulieu,J. P. Beaulieu,Martin Dominik,Martin Dominik,Keith Horne,Keith Horne,J. G. Greenhill,J. G. Greenhill,Joachim Wambsganss,Joachim Wambsganss,J. W. Menzies,Andrew Williams,U. G. Jørgensen,U. G. Jørgensen,Andrzej Udalski,David P. Bennett,David P. Bennett,Michael D. Albrow,Michael D. Albrow,V. Batista,S. Brillant,S. Brillant,J. A. R. Caldwell,J. A. R. Caldwell,Andrew A. Cole,Andrew A. Cole,Ch. Coutures,K. H. Cook,K. H. Cook,S. Dieters,S. Dieters,D. Dominis Prester,D. Dominis Prester,J. Donatowicz,J. Donatowicz,Pascal Fouqué,Pascal Fouqué,K. Hill,K. Hill,N. Kains,N. Kains,Stephen R. Kane,Stephen R. Kane,J. B. Marquette,R. Martin,K. R. Pollard,K. R. Pollard,Kailash C. Sahu,Kailash C. Sahu,C. Vinter,C. Vinter,D. Warren,D. Warren,B. Watson,B. Watson,M. Zub,M. Zub,Takahiro Sumi,Michał K. Szymański,M. Kubiak,Radosław Poleski,Igor Soszyński,Krzysztof Ulaczyk,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Łukasz Wyrzykowski,Łukasz Wyrzykowski +70 more
TL;DR: It is concluded that stars are orbited by planets as a rule, rather than the exception, and that of stars host Jupiter-mass planets 0.5–10 au (Sun–Earth distance) from their stars.
Journal ArticleDOI
A COLD NEPTUNE-MASS PLANET OGLE-2007-BLG-368Lb: COLD NEPTUNES ARE COMMON
Takahiro Sumi,D. P. Bennett,Ian A. Bond,Andrzej Udalski,V. Batista,Martin Dominik,Martin Dominik,P. Fouqué,D. Kubas,Andrew Gould,Bruce Macintosh,K. H. Cook,Subo Dong,L. Skuljan,Arnaud Cassan,Fumio Abe,C. S. Botzler,Akihiko Fukui,K. Furusawa,John B. Hearnshaw,Yoshitaka Itow,Kisaku Kamiya,P. M. Kilmartin,A. V. Korpela,W. Lin,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,N. Miyake,Yasushi Muraki,M. Nagaya,Takahiro Nagayama,Kouji Ohnishi,Teppei Okumura,Y. C. Perrott,Nicholas J. Rattenbury,To. Saito,Takashi Sako,D. J. Sullivan,Winston L. Sweatman,P. J. Tristram,Philip Yock,J. P. Beaulieu,Andrew A. Cole,Ch. Coutures,M. F. Duran,J. G. Greenhill,Francisco Jablonski,U. Marboeuf,Eder Martioli,Ettore Pedretti,Ondřej Pejcha,Patricio Rojo,Michael D. Albrow,S. Brillant,M. F. Bode,D. M. Bramich,Martin Burgdorf,Martin Burgdorf,J. A. R. Caldwell,H. Calitz,E. Corrales,S. Dieters,S. Dieters,D. Dominis Prester,J. Donatowicz,K. M. Hill,K. M. Hill,M. Hoffman,Keith Horne,U. G. Jørgensen,N. Kains,Stephen R. Kane,J. B. Marquette,R. M. Martin,P. J. Meintjes,J. W. Menzies,K. R. Pollard,Kailash C. Sahu,Colin Snodgrass,Iain A. Steele,Rachel Street,Yiannis Tsapras,Joachim Wambsganss,Andrew Williams,M. Zub,Michał K. Szymański,M. Kubiak,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,O. Szewczyk,Łukasz Wyrzykowski,Krzysztof Ulaczyk,William H. Allen,G. W. Christie,Darren L. DePoy,B. S. Gaudi,C. Han,J. Janczak,C.-U. Lee,Jennie McCormick,F. Mallia,B. Monard,Tim Natusch,Byeong-Gon Park,Richard W. Pogge,R. Santallo +107 more
TL;DR: The OGLE-2007-BLG-368Lb with a planet-star mass ratio of q = [9.5 ± 2.1] × 10^(-5] via gravitational microlensing was discovered in real-time thanks to the high cadence of the Microlensing Observations in Astrophysics survey and intensive followup observations.
Posted Content
A Re-examination of the
TL;DR: In this paper, the authors carried out further analysis of the tentative, short-term brightenings reported by Sahu et al. (2001), which were suggested to be possible lensings of Galactic-bulge stars by free-floating planets in the globular cluster M22.