M
Man Cheung Alex Li
Researcher at University of Auckland
Publications - 116
Citations - 2232
Man Cheung Alex Li is an academic researcher from University of Auckland. The author has contributed to research in topics: Gravitational microlensing & Planet. The author has an hindex of 21, co-authored 114 publications receiving 1909 citations. Previous affiliations of Man Cheung Alex Li include Max Planck Society.
Papers
More filters
Journal ArticleDOI
The exoplanet mass-ratio function from the moa-ii survey: discovery of a break and likely peak at a neptune mass
Daisuke Suzuki,David P. Bennett,David P. Bennett,Takahiro Sumi,Ian A. Bond,Leslie A. Rogers,Fumio Abe,Yuichiro Asakura,Aparna Bhattacharya,Aparna Bhattacharya,Martin Donachie,M. Freeman,Akihiko Fukui,Yuki Hirao,Yoshitaka Itow,Naoki Koshimoto,Man Cheung Alex Li,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Masayuki Nagakane,K. Onishi,H. Oyokawa,Nicholas J. Rattenbury,To. Saito,A. Sharan,Hiroshi Shibai,Denis J. Sullivan,Paul J. Tristram,Atsunori Yonehara +30 more
TL;DR: In this article, the authors report the results of the statistical analysis of planetary signals discovered in MOA-II microlensing survey alert system events from 2007 to 2012, and determine the survey sensitivity as a function of planet star mass ratio, q, and projected planet star separation, s, in Einstein radius units.
Journal ArticleDOI
Spitzer parallax of OGLE-2015-BLG-0966 : a cold Neptune in the Galactic disk
Rachel Street,Andrzej Udalski,S. Calchi Novati,S. Calchi Novati,M. Hundertmark,Wei Zhu,Andrew Gould,Jennifer C. Yee,Yiannis Tsapras,David P. Bennett,U. G. Jørgensen,Martin Dominik,Michael I. Andersen,Etienne Bachelet,Etienne Bachelet,Valerio Bozza,Valerio Bozza,D. M. Bramich,Martin Burgdorf,Arnaud Cassan,Simona Ciceri,Giuseppe D'Ago,Subo Dong,Daniel F. Evans,Shenghong Gu,H. Harkonnen,Tobias C. Hinse,Keith Horne,R. Figuera Jaimes,R. Figuera Jaimes,N. Kains,Eamonn Kerins,Heidi Korhonen,M. Kuffmeier,Luigi Mancini,J. W. Menzies,Shude Mao,Nuno Peixinho,A. Popovas,Markus Rabus,Markus Rabus,Sohrab Rahvar,Clément Ranc,R. Tronsgaard Rasmussen,Gaetano Scarpetta,R. W. Schmidt,Jesper Skottfelt,Colin Snodgrass,John Southworth,Iain A. Steele,Jean Surdej,Eduardo Unda-Sanzana,P. Verma,C. von Essen,Joachim Wambsganss,Yi-Bo Wang,Olivier Wertz,Radek Poleski,Radek Poleski,M. Pawlak,Michał K. Szymański,Jan Skowron,P. Mróz,Szymon Kozłowski,Łukasz Wyrzykowski,Paweł Pietrukowicz,Grzegorz Pietrzyński,Igor Soszyński,Krzysztof Ulaczyk,C. A. Beichman,G. Bryden,Sean Carey,B. S. Gaudi,Calen B. Henderson,Calen B. Henderson,Richard W. Pogge,Yossi Shvartzvald,Fumio Abe,Yuichiro Asakura,Aparna Bhattacharya,Ian A. Bond,Martin Donachie,M. Freeman,Akihiko Fukui,Yuki Hirao,K. Inayama,Yoshitaka Itow,Naoki Koshimoto,Man Cheung Alex Li,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Masayuki Nagakane,T. Nishioka,Kouji Ohnishi,H. Oyokawa,Nicholas J. Rattenbury,To. Saito,A. Sharan,Denis J. Sullivan,Takahiro Sumi,Daisuke Suzuki,J. Tristram,Y. Wakiyama,Atsunori Yonehara,C. Han,J-Y. Choi,H. Park,Y. K. Jung,I.-G. Shin +110 more
TL;DR: In this paper, the authors reported the detection of a cold Neptune mplanet = 21 ± 2 M⊕ orbiting a 0.38 m⊙ M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations.
Journal ArticleDOI
The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c
David P. Bennett,David P. Bennett,S. H. Rhie,Andrzej Udalski,Andrew Gould,Andrew Gould,Andrew Gould,Yiannis Tsapras,Yiannis Tsapras,D. Kubas,Ian A. Bond,J. G. Greenhill,Arnaud Cassan,Nicholas J. Rattenbury,Tabetha S. Boyajian,Jacob K. Luhn,Matthew T. Penny,Jay Anderson,Fumio Abe,Aparna Bhattacharya,C. S. Botzler,Martin Donachie,M. Freeman,Akihiko Fukui,Yuki Hirao,Yoshitaka Itow,Naoki Koshimoto,Man Cheung Alex Li,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Masayuki Nagakane,Kouji Ohnishi,H. Oyokawa,Y. C. Perrott,To. Saito,A. Sharan,Denis J. Sullivan,Takahiro Sumi,Daisuke Suzuki,Daisuke Suzuki,Paul J. Tristram,Atsunori Yonehara,P. C. M. Yock,Michał K. Szymański,Igor Soszyński,Krzysztof Ulaczyk,Łukasz Wyrzykowski,William H. Allen,Darren L. DePoy,Avishay Gal-Yam,B. S. Gaudi,Chang S. Han,I. A. G. Monard,Eran O. Ofek,Richard W. Pogge,Rachel Street,D. M. Bramich,Martin Dominik,Keith Horne,Colin Snodgrass,Colin Snodgrass,Iain A. Steele,Michael D. Albrow,Etienne Bachelet,V. Batista,J.-P. Beaulieu,S. Brillant,J. A. R. Caldwell,Andrew A. Cole,Ch. Coutures,S. Dieters,D. Dominis Prester,J. Donatowicz,P. Fouqué,M. Hundertmark,M. Hundertmark,U. G. Jørgensen,N. Kains,S. R. Kane,J.-B. Marquette,J. W. Menzies,K. R. Pollard,Clément Ranc,Kailash C. Sahu,Joachim Wambsganss,Andrew Williams,M. Zub +88 more
TL;DR: The OGLE-2007-BLG-349 microlensing event has a strong planetary signal that is best fit with a mass ratio q ≈ 3.4 × 10-4, but there is an additional signal due to an additional lens mass, either another planet or another star as mentioned in this paper.
Journal ArticleDOI
The lowest mass ratio planetary microlens: OGLE 2016–BLG–1195Lb
Ian A. Bond,David P. Bennett,Takahiro Sumi,Andrzej Udalski,Daisuke Suzuki,Nicholas J. Rattenbury,Valerio Bozza,Valerio Bozza,Naoki Koshimoto,Fumio Abe,Yuichiro Asakura,Richard K. Barry,Aparna Bhattacharya,Aparna Bhattacharya,Martin Donachie,Phil Evans,Akihiko Fukui,Yuki Hirao,Yoshitaka Itow,Man Cheung Alex Li,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Masayuki Nagakane,K. Ohnishi,Clément Ranc,To. Saito,A. Sharan,Denis J. Sullivan,Paul J. Tristram,T. Yamada,Atsunori Yonehara,Jan Skowron,Michał K. Szymański,Radosław Poleski,Radosław Poleski,P. Mróz,Igor Soszyński,P. Pietrukowicz,S. Kozlowski,Krzysztof Ulaczyk,Krzysztof Ulaczyk,Michał Pawlak +43 more
TL;DR: In this paper, the authors reported the discovery of the lowest mass ratio exoplanet to be found by the microlensing method in the light curve of the event OGLE 2016 -BLG-1195.
Journal ArticleDOI
Campaign 9 of the K2 Mission: Observational Parameters, Scientific Drivers, and Community Involvement for a Simultaneous Space- and Ground-based Microlensing Survey
Calen B. Henderson,Radosław Poleski,Radosław Poleski,Matthew T. Penny,Rachel Street,David P. Bennett,David W. Hogg,B. Scott Gaudi,Wei Zhu,Thomas Barclay,Geert Barentsen,Steve B. Howell,Fergal Mullally,Andrzej Udalski,Michał K. Szymański,Jan Skowron,Przemek Mróz,S. Kozłowski,Łukasz Wyrzykowski,Paweł Pietrukowicz,Igor Soszyński,Krzysztof Ulaczyk,M. Pawlak,Takahiro Sumi,Fumio Abe,Yuichiro Asakura,Richard Barry,Aparna Bhattacharya,Ian A. Bond,Martin Donachie,M. Freeman,Akihiko Fukui,Yuki Hirao,Yoshitaka Itow,Naoki Koshimoto,Man Cheung Alex Li,C. H. Ling,Kimiaki Masuda,Yutaka Matsubara,Yasushi Muraki,Masayuki Nagakane,Kouji Ohnishi,H. Oyokawa,Nicholas J. Rattenbury,To. Saito,A. Sharan,Denis J. Sullivan,Paul J. Tristram,Atsunori Yonehara,Etienne Bachelet,D. M. Bramich,Arnaud Cassan,Martin Dominik,R. Figuera Jaimes,Keith Horne,M. Hundertmark,Shude Mao,Shude Mao,Shude Mao,Clément Ranc,R. W. Schmidt,Colin Snodgrass,Iain A. Steele,Yiannis Tsapras,Joachim Wambsganss,Valerio Bozza,Valerio Bozza,Martin Burgdorf,U. G. Jørgensen,S. Calchi Novati,S. Calchi Novati,Simona Ciceri,Giuseppe D'Ago,Daniel F. Evans,Frederic V. Hessman,Tobias C. Hinse,T.-O. Husser,Luigi Mancini,A. Popovas,Markus Rabus,Sohrab Rahvar,Gaetano Scarpetta,Jesper Skottfelt,Jesper Skottfelt,John Southworth,Eduardo Unda-Sanzana,Stephen T. Bryson,Douglas A. Caldwell,Martin Haas,K. Larson,K. McCalmont,M. Packard,C. A. Peterson,D. Putnam,L. H. Reedy,Stephen J. Ross,J. Van Cleve,Rachel Akeson,V. Batista,J.-P. Beaulieu,Chas Beichman,Geoff Bryden,David R. Ciardi,Andrew A. Cole,Ch. Coutures,Daniel Foreman-Mackey,P. Fouqué,M. Friedmann,Christopher R. Gelino,Shai Kaspi,Eamonn Kerins,Heidi Korhonen,Dustin Lang,Chien-Hsiu Lee,Charles H. Lineweaver,D. Maoz,J. B. Marquette,F. Mogavero,Jérémy Morales,David M. Nataf,Richard W. Pogge,Alexandre Santerne,Yossi Shvartzvald,Daisuke Suzuki,Motohide Tamura,Patrick Tisserand,Dun Wang +126 more
TL;DR: The demographic questions that can be addressed by this program, including the frequency of FFPs and the Galactic distribution of exoplanets, the observational parameters of K2C9, and the array of resources dedicated to concurrent observations are detailed.