K
K. Ohnishi
Researcher at Max Planck Society
Publications - 90
Citations - 3363
K. Ohnishi is an academic researcher from Max Planck Society. The author has contributed to research in topics: Gravitational microlensing & Planet. The author has an hindex of 31, co-authored 90 publications receiving 3215 citations.
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Journal ArticleDOI
Microlensing optical depth towards the Galactic bulge from MOA observations during 2000 with Difference Image Analysis
Takahiro Sumi,Fumio Abe,Ian A. Bond,R. J. Dodd,John B. Hearnshaw,Morihiro Honda,Mareki Honma,Yukitoshi Kan-ya,P. M. Kilmartin,Kimiaki Masuda,Y. Matsubara,Y. Muraki,T. Nakamura,Ryoichi Nishi,S. Noda,K. Ohnishi,O. K. L. Petterson,N. J. Rattenbury,M. Reid,To. Saito,Yoshihiko Saito,Hiroshi Sato,Masaki Sekiguchi,J. Skuljan,Denis J. Sullivan,M. Takeuti,P. J. Tristram,S. Wilkinson,Toshifumi Yanagisawa,P. C. M. Yock +29 more
TL;DR: In this paper, the authors used Monte Carlo simulations to estimate the detection efficiency of microlensing event detection efficiency, where they constructed the I-band extinction map of their GB fields in order to find dereddened magnitudes.
Journal ArticleDOI
Microlensing Optical Depth toward the Galactic Bulge from Microlensing Observations in Astrophysics Group Observations during 2000 with Difference Image Analysis
Takahiro Sumi,Takahiro Sumi,Fumio Abe,Ian A. Bond,R. J. Dodd,R. J. Dodd,John B. Hearnshaw,Morihiro Honda,Mareki Honma,Yukitoshi Kan-ya,P. M. Kilmartin,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,T. Nakamura,Ryoichi Nishi,S. Noda,K. Ohnishi,O. K. L. Petterson,Nicholas J. Rattenbury,M. Reid,To. Saito,Y. Saito,Hiroshi Sato,Masaki Sekiguchi,J. Skuljan,Denis J. Sullivan,Mine Takeuti,Paul J. Tristram,S. Wilkinson,T. Yanagisawa,Philip Yock +31 more
TL;DR: In this article, the authors used Monte Carlo simulations to estimate the detection efficiency of microlensing event detection efficiency, where they constructed the I-band extinction map of their GB fields in order to find dereddened magnitudes.
Journal ArticleDOI
MOA-2011-BLG-293Lb: A TEST OF PURE SURVEY MICROLENSING PLANET DETECTIONS
Jennifer C. Yee,Yossi Shvartzvald,Avishay Gal-Yam,Ian A. Bond,Andrzej Udalski,Szymon Kozłowski,Chang S. Han,Andrew Gould,Jan Skowron,Daisuke Suzuki,Fumio Abe,David P. Bennett,C. S. Botzler,Paul Chote,M. Freeman,Akihiko Fukui,K. Furusawa,Yoshitaka Itow,S. Kobara,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,N. Miyake,Yasushi Muraki,Kantaro Ohmori,K. Ohnishi,Nicholas J. Rattenbury,To. Saito,Denis J. Sullivan,Takahiro Sumi,Kazuyoshi Suzuki,Winston L. Sweatman,S. Takino,P. J. Tristram,K. Wada,Michał K. Szymański,M. Kubiak,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,Radosław Poleski,Krzysztof Ulaczyk,Łukasz Wyrzykowski,Łukasz Wyrzykowski,P. Pietrukowicz,William H. Allen,Leonardo A. Almeida,V. Batista,M. Bos,G. W. Christie,Darren L. DePoy,Subo Dong,Jack D. Drummond,I. Finkelman,B. S. Gaudi,Evgeny Gorbikov,Calen B. Henderson,D. Higgins,Francisco Jablonski,Shai Kaspi,Ilan Manulis,D. Maoz,Jennie McCormick,D. McGregor,L. A. G. Monard,D. Moorhouse,J. A. Muñoz,Tim Natusch,H. Ngan,Eran O. Ofek,Richard W. Pogge,R. Santallo,Thiam-Guan Tan,G. Thornley,In-Gu Shin,J.-Y. Choi,S.-Y. Park,C.-U. Lee,J.-R. Koo +78 more
TL;DR: In the Mathematical and Physical Sciences: 1st Place (The Ohio State University Edward F. Hayes Graduate Research Forum) as mentioned in this paper, the authors of the paper as mentioned in this paper presented a mathematical and physical sciences model.
Journal ArticleDOI
Microlensing event moa-2007-blg-400: exhuming the buried signature of a cool, jovian-mass planet
Subo Dong,Ian A. Bond,Andrew Gould,Szymon Kozłowski,N. Miyake,B. S. Gaudi,David P. Bennett,Fumio Abe,A. C. Gilmore,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,Yasushi Muraki,M. Nagaya,K. Ohnishi,Teppei Okumura,Y. C. Perrott,Nicholas J. Rattenbury,To. Saito,Takashi Sako,Susumu Sato,L. Skuljan,Denis J. Sullivan,Takahiro Sumi,W. Sweatman,P. J. Tristram,Philip Yock,Greg Bolt,G. W. Christie,Darren L. DePoy,C. Han,J. Janczak,C.-U. Lee,F. Mallia,Jennie McCormick,B. Monard,Anaëlle Maury,Tim Natusch,Byeong-Gon Park,R. W. Pogge,R. Santallo,K. Z. Stanek,Andrzej Udalski,M. Kubiak,Michał K. Szymański,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,O. Szewczyk,O. Szewczyk,Łukasz Wyrzykowski,Łukasz Wyrzykowski,Krzysztof Ulaczyk +60 more
TL;DR: In this article, the authors reported the detection of the cool, Jovian-mass planet MOA-2007-BLG-400Lb in a high-magnification microlensing event.
Journal ArticleDOI
Binary microlensing event OGLE-2009-BLG-020 gives a verifiable mass, distance and orbit predictions
Jan Skowron,Andrzej Udalski,Andrew Gould,Subo Dong,L. A. G. Monard,C. Han,Cameron Nelson,Jennie McCormick,D. Moorhouse,G. Thornley,Anaëlle Maury,D. M. Bramich,J. G. Greenhill,S. Kozlowski,Ian A. Bond,Radek Poleski,L. Wyrzykowski,K. Ulaczyk,M. Kubiak,Michał K. Szymański,Grzegorz Pietrzyński,Igor Soszyński,B. S. Gaudi,Jennifer C. Yee,Li-Wei Hung,R. W. Pogge,Darren L. DePoy,C.-U. Lee,Byeong-Gon Park,William H. Allen,F. Mallia,Jack D. Drummond,Greg Bolt,Alasdair Allan,P. Browne,N. R. Clay,Martin Dominik,S. N. Fraser,Keith Horne,N. Kains,C. J. Mottram,Colin Snodgrass,Iain A. Steele,Rachel Street,Yiannis Tsapras,Fumio Abe,David P. Bennett,C. S. Botzler,Dimitri Douchin,M. Freeman,Akihiko Fukui,K. Furusawa,F. Hayashi,John B. Hearnshaw,S. Hosaka,Yoshitaka Itow,Kisaku Kamiya,P. M. Kilmartin,A. V. Korpela,W. Lin,C. H. Ling,S. Makita,Kimiaki Masuda,Y. Matsubara,Y. Muraki,Takahiro Nagayama,N. Miyake,K. Nishimoto,K. Ohnishi,Y. C. Perrott,N. J. Rattenbury,To. Saito,L. Skuljan,Denis J. Sullivan,Takahiro Sumi,Daisuke Suzuki,Winston L. Sweatman,P. J. Tristram,K. Wada,P. C. M. Yock,J. P. Beaulieu,P. Fouque,Michael D. Albrow,V. Batista,Stephane Brillant,J. A. R. Caldwell,Arnaud Cassan,Andrew A. Cole,K. H. Cook,Ch. Coutures,S. Dieters,D. Dominis Prester,J. Donatowicz,S. R. Kane,D. Kubas,J. B. Marquette,R. M. Martin,J. W. Menzies,Kailash C. Sahu,Joachim Wambsganss,Andrew Williams,M. Zub +101 more
TL;DR: In this article, the first example of binary microlensing for which the parameter measurements can be verified (or contradicted) by future Doppler observations is presented, made possible by a confluence of two relatively unusual circumstances.