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A. Kavka
Researcher at Ohio State University
Publications - 12
Citations - 427
A. Kavka is an academic researcher from Ohio State University. The author has contributed to research in topics: Gravitational microlensing & Light curve. The author has an hindex of 10, co-authored 12 publications receiving 426 citations.
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Journal ArticleDOI
Microlensing discovery of a tight, low-mass-ratio planetary-mass object around an old field brown dwarf
Chang S. Han,Youn Kil Jung,Andrzej Udalski,Takahiro Sumi,B. S. Gaudi,Andrew Gould,David P. Bennett,Yiannis Tsapras,Yiannis Tsapras,Michał K. Szymański,M. Kubiak,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,Jan Skowron,Szymon Kozłowski,Radosław Poleski,Radosław Poleski,Krzysztof Ulaczyk,Łukasz Wyrzykowski,Łukasz Wyrzykowski,Paweł Pietrukowicz,Fumio Abe,Ian A. Bond,C. S. Botzler,P. Chote,M. Freeman,Akihiko Fukui,K. Furusawa,P. Harris,Yoshitaka Itow,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Kouji Ohnishi,Nicholas J. Rattenbury,To. Saito,Denis J. Sullivan,Winston L. Sweatman,Daisuke Suzuki,Paul J. Tristram,K. Wada,Philip Yock,V. Batista,G. W. Christie,J.-Y. Choi,Darren L. DePoy,Subo Dong,K. H. Hwang,A. Kavka,C.-U. Lee,L. A. G. Monard,Tim Natusch,H. Ngan,H. Park,Richard W. Pogge,I. Porritt,In-Gu Shin,Thiam-Guan Tan,Jennifer C. Yee,Khalid Al-Subai,Valerio Bozza,D. M. Bramich,P. Browne,Martin Dominik,Keith Horne,M. Hundertmark,Sergei I. Ipatov,N. Kains,C. Liebig,Colin Snodgrass,Iain A. Steele,Rachel Street +73 more
TL;DR: The OGLE-2012-BLG-0358Lb system as discussed by the authors is a relatively tightly separated binary composed of a planetary-mass object with 1.9 ± 0.2 Jupiter masses orbiting a BD with a mass 0.022 M ☉.
Journal ArticleDOI
OGLE-2012-BLG-0563Lb: A SATURN-MASS PLANET AROUND AN M DWARF WITH THE MASS CONSTRAINED BY SUBARU AO IMAGING
Akihiko Fukui,Andrew Gould,Takahiro Sumi,David P. Bennett,Ian A. Bond,Chang S. Han,Daisuke Suzuki,J. P. Beaulieu,V. Batista,Andrzej Udalski,Rachel Street,Yiannis Tsapras,Yiannis Tsapras,Yiannis Tsapras,M. Hundertmark,Fumio Abe,Aparna Bhattacharya,M. Freeman,Yoshitaka Itow,C. H. Ling,Naoki Koshimoto,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Kouji Ohnishi,Lydia C. Philpott,Nicholas J. Rattenbury,To. Saito,Denis J. Sullivan,Paul J. Tristram,Atsunori Yonehara,J.-Y. Choi,G. W. Christie,Darren L. DePoy,Subo Dong,Jack D. Drummond,B. S. Gaudi,K.-H. Hwang,A. Kavka,C.-U. Lee,Jennie McCormick,Tim Natusch,H. Ngan,H. Park,Richard W. Pogge,I.-G. Shin,Thiam-Guan Tan,Jennifer C. Yee,Jennifer C. Yee,M. K. Szyman´ski,G. Pietrzyn´ski,I. Soszyn´ski,Radek Poleski,Radek Poleski,Szymon Kozłowski,Paweł Pietrukowicz,Krzysztof Ulaczyk,Łukasz Wyrzykowski,D. M. Bramich,P. Browne,Martin Dominik,Keith Horne,Sergei I. Ipatov,N. Kains,Colin Snodgrass,Iain A. Steele +65 more
TL;DR: The OGLE project has received funding from the National Science Centre, Poland, grant MAESTRO 2014/14/A/ST9/00121 to A.S. as discussed by the authors.
Journal ArticleDOI
OGLE-2012-BLG-0563Lb: a Saturn-mass Planet around an M Dwarf with the Mass Constrained by Subaru AO imaging
Akihiko Fukui,Andrew Gould,Takahiro Sumi,David P. Bennett,Ian A. Bond,Chang S. Han,Daisuke Suzuki,J. P. Beaulieu,V. Batista,Andrzej Udalski,Rachel Street,Yiannis Tsapras,M. Hundertmark,Fumio Abe,A. Bhattacharya,M. Freeman,Yoshitaka Itow,C. H. Ling,Naoki Koshimoto,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Kouji Ohnishi,Lydia C. Philpott,Nicholas J. Rattenbury,To. Saito,Denis J. Sullivan,Paul J. Tristram,Atsunori Yonehara,J.-Y. Choi,G. W. Christie,Darren L. DePoy,Subo Dong,Jack D. Drummond,B. S. Gaudi,K.-H. Hwang,A. Kavka,C.-U. Lee,Jennie McCormick,Tim Natusch,H. Ngan,H. Park,Richard W. Pogge,I.-G. Shin,Thiam-Guan Tan,Jennifer C. Yee,Michał K. Szymański,Grzegorz Pietrzyński,Igor Soszyński,R. Poleski,Szymon Kozłowski,Paweł Pietrukowicz,Krzysztof Ulaczyk,Ł. Wyrzykowski D. M. Bramich,P. Browne,Martin Dominik,Keith Horne,Sergei I. Ipatov,N. Kains,Colin Snodgrass,Iain A. Steele +60 more
TL;DR: The OGLE-2012-BLG-0563Lb microlensing exoplanet was discovered in this paper with the planet-star mass ratio of 1 x 10−3.
Journal ArticleDOI
Gravitational Binary-lens Events with Prominent Effects of Lens Orbital Motion
H. Park,Andrzej Udalski,Chang S. Han,Andrew Gould,J. P. Beaulieu,Yiannis Tsapras,Michał K. Szymański,M. Kubiak,Igor Soszyński,Grzegorz Pietrzyński,Radosław Poleski,Krzysztof Ulaczyk,Paweł Pietrukowicz,S. Kozlowski,Jan Skowron,Łukasz Wyrzykowski,J.-Y. Choi,Darren L. DePoy,Subo Dong,B. S. Gaudi,K.-H. Hwang,Y. K. Jung,A. Kavka,C.-U. Lee,L. A. G. Monard,Byeong-Gon Park,Richard W. Pogge,I. Porritt,In-Gu Shin,Jennifer C. Yee,Michael D. Albrow,David P. Bennett,J. A. R. Caldwell,Arnaud Cassan,C. Coutures,D. Dominis,J. Donatowicz,P. Fouque,J. G. Greenhill,M. E. Huber,U. G. Jørgensen,S. R. Kane,D. Kubas,J. B. Marquette,J. W. Menzies,C. Pitrou,K. R. Pollard,Kailash C. Sahu,Joachim Wambsganss,Andrew Williams,M. Zub,Alasdair Allan,D. M. Bramich,P. Browne,Martin Dominik,Keith Horne,M. Hundertmark,N. Kains,Colin Snodgrass,Iain A. Steele,Rachel Street +60 more
TL;DR: Zhang et al. as mentioned in this paper analyzed the light curves of two binary-lens events OGLE-2006-BLG-277 and OGLE2012-blg-0031 and found that the deviations are mostly explained by the effect of the lens orbital motion.
Journal ArticleDOI
Interpretation of a short-term anomaly in the gravitational microlensing event MOA-2012-BLG-486
Kyu-Ha Hwang,J.-Y. Choi,Ian A. Bond,Takahiro Sumi,Chang S. Han,B. S. Gaudi,Andrew Gould,Valerio Bozza,J.-P. Beaulieu,Yiannis Tsapras,Fumio Abe,David P. Bennett,C. S. Botzler,P. Chote,M. Freeman,Akihiko Fukui,D. Fukunaga,P. Harris,Yoshitaka Itow,Naoki Koshimoto,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,S. Namba,Kouji Ohnishi,Nicholas J. Rattenbury,To. Saito,Denis J. Sullivan,Winston L. Sweatman,Daisuke Suzuki,Paul J. Tristram,K. Wada,N. Yamai,Philip Yock,Atsunori Yonehara,L. Andrade de Almeida,Darren L. DePoy,Subo Dong,Francisco Jablonski,Youn Kil Jung,A. Kavka,C.-U. Lee,H. Park,Richard W. Pogge,In-Gu Shin,Jennifer C. Yee,Michael D. Albrow,Etienne Bachelet,V. Batista,S. Brillant,John A. R. Caldwell,Arnaud Cassan,Andrew A. Cole,E. Corrales,Ch. Coutures,S. Dieters,D. Dominis Prester,J. Donatowicz,P. Fouqué,J. G. Greenhill,U. G. Jørgensen,S. R. Kane,D. Kubas,J.-B. Marquette,R. Martin,P. J. Meintjes,J. W. Menzies,K. R. Pollard,Andrew Williams,D. Wouters,D. M. Bramich,Martin Dominik,Keith Horne,P. Browne,M. Hundertmark,Sergei I. Ipatov,N. Kains,Colin Snodgrass,Iain A. Steele,Rachel Street +80 more
TL;DR: In this paper, the analysis of the microlensing event MOA-2012-BLG-486 is presented, for which the light curve exhibits a short-lived perturbation.