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
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TLDR
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.Abstract:
K2's Campaign 9 (K2C9) will conduct a ~3.7 deg^2 survey toward the Galactic bulge from 2016 April 22 through July 2 that will leverage the spatial separation between K2 and the Earth to facilitate measurement of the microlens parallax πE for ≳170 microlensing events. These will include several that are planetary in nature as well as many short-timescale microlensing events, which are potentially indicative of free-floating planets (FFPs). These satellite parallax measurements will in turn allow for the direct measurement of the masses of and distances to the lensing systems. In this article we provide an overview of the K2C9 space- and ground-based microlensing survey. Specifically, we detail 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. Finally, we outline the avenues through which the larger community can become involved, and generally encourage participation in K2C9, which constitutes an important pathfinding mission and community exercise in anticipation of WFIRST.read more
Citations
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Journal ArticleDOI
Predictions of the WFIRST Microlensing Survey. I. Bound Planet Detection Rates
Matthew T. Penny,B. Scott Gaudi,Eamonn Kerins,Nicholas J. Rattenbury,Shude Mao,Annie C. Robin,Sebastiano Calchi Novati +6 more
TL;DR: The Wide Field InfraRed Survey Telescope (WFIRST) was chosen as the top-priority large space mission of the 2010 astronomy and astrophysics decadal survey in order to study dark energy via a wide field imaging survey, to study exoplanets via a microlensing survey, and to enable a guest observer program as mentioned in this paper.
Journal ArticleDOI
Korea Microlensing Telescope Network Microlensing Events from 2015: Event-finding Algorithm, Vetting, and Photometry
Dong-Jin Kim,Hyoun-Woo Kim,K. H. Hwang,Michael D. Albrow,S. J. Chung,Andrew Gould,Andrew Gould,Andrew Gould,C. Han,Y. K. Jung,Yoon-Hyun Ryu,In-Gu Shin,Jennifer C. Yee,Wei Zhu,Sang-Mok Cha,Seung-Lee Kim,Chung-Uk Lee,D. J. Lee,Yongseok Lee,B. G. Park,R. W. Pogge +20 more
TL;DR: In this paper, the authors present microlensing events in the 2015 Korea Microlensing Telescope Network (KMTNet) data and their procedure for identifying these events using a novel "completed event" micro-lensing event-finder algorithm.
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
A Neptune-mass Free-floating Planet Candidate Discovered by Microlensing Surveys
Przemek Mróz,Yoon-Hyun Ryu,Jan Skowron,Andrzej Udalski,Andrew Gould,Michał K. Szymański,Igor Soszyński,Radosław Poleski,Paweł Pietrukowicz,Szymon Kozłowski,Michał Pawlak,K. Ulaczyk,Michael D. Albrow,S. J. Chung,Youn Kil Jung,C. Han,K. H. Hwang,In-Gu Shin,Jennifer C. Yee,Wei Zhu,Sang-Mok Cha,Dong-Jin Kim,Hyoun-Woo Kim,Seung-Lee Kim,Chung-Uk Lee,D. J. Lee,Yongseok Lee,B. G. Park,Richard W. Pogge +28 more
TL;DR: In this paper, the authors presented the discovery of a Neptune-mass free-floating planet candidate in the ultrashort OGLE-2016-BLG-1540 microlensing event.
Journal ArticleDOI
A Neptune-mass Free-floating Planet Candidate Discovered by Microlensing Surveys
Przemek Mróz,Yoon-Hyun Ryu,Jan Skowron,Andrzej Udalski,Andrew Gould,Michał K. Szymański,Igor Soszyński,Radosław Poleski,P. Pietrukowicz,S. Kozlowski,Michał Pawlak,K. Ulaczyk,Michael D. Albrow,Sun-Ju Chung,Y. K. Jung,C. Han,K.-H. Hwang,In-Gu Shin,Jennifer C. Yee,Wei Zhu,Sang-Mok Cha,Dong-Jin Kim,Hyoun-Woo Kim,Shinyoung Kim,C.-U. Lee,Duk-Hang Lee,Yongseok Lee,Byeong-Gon Park,Richard W. Pogge +28 more
TL;DR: In this paper, the authors presented the discovery of a Neptune-mass free-floating planet candidate in the ultrashort OGLE-2016-BLG-1540 microlensing event.
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