M
M. Hoffman
Researcher at University of the Free State
Publications - 4
Citations - 687
M. Hoffman is an academic researcher from University of the Free State. The author has contributed to research in topics: Gravitational microlensing & Planetary mass. The author has an hindex of 3, co-authored 4 publications receiving 677 citations. Previous affiliations of M. Hoffman include University of Potsdam.
Papers
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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
Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050
V. Batista,Subo Dong,Andrew Gould,J.-P. Beaulieu,Arnaud Cassan,G. W. Christie,C. Han,Andrzej Udalski,William H. Allen,Darren L. DePoy,Avishay Gal-Yam,B. S. Gaudi,Benjamin D. Johnson,Shai Kaspi,C.-U. Lee,D. Maoz,J. McCormick,I. McGreer,Berto Monard,Tim Natusch,Eran O. Ofek,Byeong-Gon Park,Richard W. Pogge,David Polishook,Avi Shporer,Michael D. Albrow,D. P. Bennett,S. Brillant,M. F. Bode,D. M. Bramich,Martin Burgdorf,John A. R. Caldwell,H. Calitz,Andrew A. Cole,K. H. Cook,Ch. Coutures,S. Dieters,S. Dieters,Martin Dominik,D. Dominis Prester,J. Donatowicz,Pascal Fouqué,J. G. Greenhill,M. Hoffman,Keith Horne,U. G. Jørgensen,N. Kains,Stephen Kane,D. Kubas,D. Kubas,J. B. Marquette,Roland Martin,P. J. Meintjes,J. Menzies,K. R. Pollard,Kailash C. Sahu,Colin Snodgrass,Iain A. Steele,Yiannis Tsapras,Joachim Wambsganss,Andrew Williams,M. Zub,Łukasz Wyrzykowski,Łukasz Wyrzykowski,M. Kubiak,Michał K. Szymański,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,O. Szewczyk,O. Szewczyk,Krzysztof Ulaczyk,Fumio Abe,Ian A. Bond,Akihiko Fukui,K. Furusawa,John B. Hearnshaw,S. Holderness,Yoshitaka Itow,K. Kamiya,P. M. Kilmartin,A. Korpela,W. Lin,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,N. Miyake,Yasushi Muraki,M. Nagaya,Kouji Ohnishi,Teppei Okumura,Yvette C. Perrott,Nicholas J. Rattenbury,To. Saito,Takashi Sako,L. Skuljan,D. J. Sullivan,Takahiro Sumi,Winston L. Sweatman,Paul J. Tristram,Philip Yock +100 more
TL;DR: In this article, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects was analyzed.
Journal ArticleDOI
Ogle-2005-blg-153: microlensing discovery and characterization of a very low mass binary
K.-H. Hwang,Andrzej Udalski,C. Han,Yoon-Hyun Ryu,Ian A. Bond,J. P. Beaulieu,Martin Dominik,Keith Horne,Andrew Gould,B. S. Gaudi,M. Kubiak,Michał K. Szymański,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,O. Szewczyk,O. Szewczyk,Krzysztof Ulaczyk,Lukasz Wyrzykowski,Fumio Abe,C. S. Botzler,John B. Hearnshaw,Yoshitaka Itow,Kisaku Kamiya,P. M. Kilmartin,Kimiaki Masuda,Yutaka Matsubara,M. Motomura,Yasushi Muraki,Shota Nakamura,Kouji Ohnishi,C. Okada,Nicholas J. Rattenbury,To. Saito,Takashi Sako,Misao Sasaki,D. J. Sullivan,Takahiro Sumi,Paul J. Tristram,J. N. Wood,Philip Yock,T. Yoshioka,Michael D. Albrow,D. P. Bennett,D. M. Bramich,S. Brillant,J. A. R. Caldwell,J. J. Calitz,Arnaud Cassan,K. H. Cook,E. Corrales,C. Coutures,M. Desort,S. Dieters,D. Dominis,J. Donatowicz,Pascal Fouqué,J. G. Greenhill,K. B. W. Harpsøe,K. B. W. Harpsøe,K. M. Hill,M. Hoffman,U. G. Jørgensen,U. G. Jørgensen,S. R. Kane,D. Kubas,R. M. Martin,J. B. Marquette,P. J. Meintjes,J. W. Menzies,K. R. Pollard,Kailash C. Sahu,Iain A. Steele,C. Vinter,Joachim Wambsganss,Andrew Williams,K. Woller,Martin Burgdorf,Colin Snodgrass,M. F. Bode,Darren L. DePoy,RoboNet,C.-U. Lee,B.-G. Park,R. W. Pogge +84 more
TL;DR: In this paper, the mass of a binary lens composed of very low mass stars just above the hydrogen-burning limit was measured from the combined measurements of the Einstein radius and microlens parallax.
Journal ArticleDOI
Mass measurement of a single unseen star and planetary detection efficiency for OGLE 2007-BLG-050
V. Batista,Subo Dong,Andrew Gould,J.-P. Beaulieu,Arnaud Cassan,G. W. Christie,C. Han,Andrzej Udalski,William H. Allen,Darren L. DePoy,Avishay Gal-Yam,B. S. Gaudi,Benjamin D. Johnson,Shai Kaspi,C.-U. Lee,D. Maoz,J. McCormick,I. McGreer,Berto Monard,Tim Natusch,Eran O. Ofek,Byeong-Gon Park,Richard W. Pogge,David Polishook,Avi Shporer,Michael D. Albrow,D. P. Bennett,S. Brillant,M. F. Bode,D. M. Bramich,Martin Burgdorf,John A. R. Caldwell,H. Calitz,Andrew A. Cole,K. H. Cook,Ch. Coutures,S. Dieters,S. Dieters,Martin Dominik,D. Dominis Prester,J. Donatowicz,Pascal Fouqué,J. G. Greenhill,M. Hoffman,Keith Horne,U. G. Jørgensen,N. Kains,Stephen Kane,D. Kubas,D. Kubas,J. B. Marquette,Roland Martin,P. J. Meintjes,J. Menzies,K. R. Pollard,Kailash C. Sahu,Colin Snodgrass,Iain A. Steele,Yiannis Tsapras,Joachim Wambsganss,Andrew Williams,M. Zub,Łukasz Wyrzykowski,Łukasz Wyrzykowski,M. Kubiak,Michał K. Szymański,Grzegorz Pietrzyński,Grzegorz Pietrzyński,Igor Soszyński,O. Szewczyk,O. Szewczyk,Krzysztof Ulaczyk,Fumio Abe,Ian A. Bond,Akihiko Fukui,K. Furusawa,John B. Hearnshaw,S. Holderness,Yoshitaka Itow,K. Kamiya,P. M. Kilmartin,A. Korpela,W. Lin,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,N. Miyake,Yasushi Muraki,M. Nagaya,Kouji Ohnishi,Teppei Okumura,Yvette C. Perrott,Nicholas J. Rattenbury,To. Saito,Takashi Sako,L. Skuljan,D. J. Sullivan,Takahiro Sumi,Winston L. Sweatman,Paul J. Tristram,Philip Yock +100 more
TL;DR: In this article, a high magnification microlensing event (A ~ 432) whose peak occurred on 2 May, 2007, with pronounced finite-source and parallax effects was analyzed.