G
Geert Barentsen
Researcher at Ames Research Center
Publications - 143
Citations - 11516
Geert Barentsen is an academic researcher from Ames Research Center. The author has contributed to research in topics: Exoplanet & Planet. The author has an hindex of 30, co-authored 141 publications receiving 8696 citations. Previous affiliations of Geert Barentsen include Max Planck Society & University of Hertfordshire.
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Journal ArticleDOI
The L 98-59 System: Three Transiting, Terrestrial-size Planets Orbiting a Nearby M Dwarf
Veselin B. Kostov,Veselin B. Kostov,Joshua E. Schlieder,Thomas Barclay,Thomas Barclay,Elisa V. Quintana,Knicole D. Colón,Jonathan Brande,Jonathan Brande,Karen A. Collins,Adina D. Feinstein,Samuel Hadden,Stephen R. Kane,Laura Kreidberg,Ethan Kruse,Christopher Lam,Elisabeth Matthews,Benjamin T. Montet,Francisco J. Pozuelos,Keivan G. Stassun,Jennifer G. Winters,George R. Ricker,Roland Vanderspek,David W. Latham,Sara Seager,Joshua N. Winn,Jon M. Jenkins,Dennis Afanasev,James D. Armstrong,Giada Arney,Patricia T. Boyd,Geert Barentsen,Khalid Barkaoui,Natalie E. Batalha,Charles Beichman,Daniel Bayliss,Christopher J. Burke,Artem Burdanov,Luca Cacciapuoti,Andrew Carson,David Charbonneau,Jessie L. Christiansen,David R. Ciardi,Mark Clampin,Kevin I. Collins,Dennis M. Conti,Jeffrey L. Coughlin,Giovanni Covone,Ian J. M. Crossfield,Laetitia Delrez,Shawn Domagal-Goldman,Courtney D. Dressing,Elsa Ducrot,Zahra Essack,Mark E. Everett,Thomas Fauchez,Daniel Foreman-Mackey,Tianjun Gan,Emily A. Gilbert,Michaël Gillon,Erica J. Gonzales,Aaron Hamann,Christina Hedges,Hannah Hocutt,K. Hoffman,Elliott P. Horch,Keith Horne,Steve B. Howell,Shane Hynes,Michael J. Ireland,Jonathan Irwin,Giovanni Isopi,Eric L. N. Jensen,Emmanuel Jehin,Lisa Kaltenegger,John F. Kielkopf,Ravi Kumar Kopparapu,Nikole K. Lewis,Eric D. Lopez,Jack J. Lissauer,Andrew W. Mann,F. Mallia,Avi Mandell,Rachel A. Matson,Tsevi Mazeh,Teresa Monsue,Sarah E. Moran,Vickie Eakin Moran,Caroline Morley,Brett M. Morris,Philip S. Muirhead,Koji Mukai,Koji Mukai,Susan E. Mullally,Fergal Mullally,C. Murray,Norio Narita,Enric Palle,Daria Pidhorodetska,David Quinn,Howard M. Relles,Stephen A. Rinehart,Matthew Ritsko,Joseph E. Rodriguez,Pamela Rowden,Jason F. Rowe,Daniel Sebastian,Ramotholo Sefako,Sahar Shahaf,Avi Shporer,Naylynn Tañón Reyes,Naylynn Tañón Reyes,Peter Tenenbaum,Peter Tenenbaum,Eric B. Ting,Joseph D. Twicken,Joseph D. Twicken,Gerard T. van Belle,Laura Vega,Jeffrey Volosin,Lucianne M. Walkowicz,Allison Youngblood +121 more
TL;DR: The transiting exoplanet Survey Satellite (TESS) discovery of three terrestrial-size planets transiting L 98-59 (TOI-175, TIC 307210830) is reported in this article.
Journal ArticleDOI
Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the Kepler 2 Observations
Wenxiong Li,Wenxiong Li,Xiaofeng Wang,Jozsef Vinko,Jozsef Vinko,Jun Mo,Griffin Hosseinzadeh,Griffin Hosseinzadeh,Griffin Hosseinzadeh,David J. Sand,Jujia Zhang,Han Lin,Tianmeng Zhang,Long Wang,Long Wang,Zhihao Chen,Danfeng Xiang,Liming Rui,Fang Huang,Fang Huang,Xue Li,Xiaojia Zhang,Linyi Li,E. Baron,James M. DerKacy,Xulin Zhao,Hanna Sai,Kaicheng Zhang,Kaicheng Zhang,Dale Andrew Howell,Dale Andrew Howell,Curtis McCully,Iair Arcavi,Iair Arcavi,Iair Arcavi,Stefano Valenti,Daichi Hiramatsu,Daichi Hiramatsu,J. Burke,J. Burke,A. Rest,A. Rest,Peter M. Garnavich,Brad E. Tucker,Gautham Narayan,Edward J. Shaya,S. Margheim,A. Zenteno,A. Villar,Georgios Dimitriadis,R. J. Foley,Yen-Chen Pan,David A. Coulter,Ori D. Fox,Saurabh Jha,D. O. Jones,Dan Kasen,Dan Kasen,Charles D. Kilpatrick,Anthony L. Piro,Adam G. Riess,Adam G. Riess,César Rojas-Bravo,Benjamin J. Shappee,Thomas W.-S. Holoien,Krzysztof Z. Stanek,Maria R. Drout,Katie Auchettl,Christopher S. Kochanek,J. S. Brown,Subhash Bose,D. Bersier,J. Brimacombe,Ping Chen,Subo Dong,S. Holmbo,J. A. Muñoz,Robert L. Mutel,R. S. Post,J. L. Prieto,J. V. Shields,D. Tallon,Todd A. Thompson,Patrick J. Vallely,Steven Villanueva,Stephen J. Smartt,K. W. Smith,K. C. Chambers,H. Flewelling,Mark E. Huber,E. A. Magnier,C. Z. Waters,A. S. B. Schultz,Joanna Bulger,T. B. Lowe,Mark Willman,Krisztián Sárneczky,András Pál,John C Wheeler,John C Wheeler,Attila Bódi,Zs. Bognár,B. Csák,B. Cseh,G. Csörnyei,O. Hanyecz,Bernadett Ignácz,Cs. Kalup,Réka Könyves-Tóth,Levente Kriskovics,A. Ordasi,I. Rajmon,Ádám Sódor,R. Szabó,Róbert Szakáts,G. Zsidi,Peter A. Milne,Jennifer E. Andrews,Nathan Smith,Christopher Bilinski,Peter J. Brown,Jakob Nordin,Steven Williams,Lluís Galbany,J. Palmerio,Isobel Hook,Cosimo Inserra,Kate Maguire,Régis Cartier,A. Razza,A. Razza,Claudia P. Gutiérrez,J. J. Hermes,Joshua S. Reding,B. C. Kaiser,John L. Tonry,A. N. Heinze,L. Denneau,H. Weiland,B. Stalder,Geert Barentsen,Jessie L. Dotson,Thomas Barclay,Thomas Barclay,Michael Gully-Santiago,Christina Hedges,Ann Marie Cody,Steve B. Howell,Jeffrey L. Coughlin,Jeffrey L. Coughlin,J. Van Cleve,J. Van Cleve,J. Vinicius de Miranda Cardoso,J. Vinicius de Miranda Cardoso,K. A. Larson,K. M. McCalmont-Everton,C. A. Peterson,S. E. Ross,L. H. Reedy,D. Osborne,C. McGinn,L. Kohnert,L. Migliorini,A. Wheaton,B. Spencer,C. Labonde,G. Castillo,G. Beerman,K. Steward,M. Hanley,R. M. Larsen,R. Gangopadhyay,R. Kloetzel,T. Weschler,V. Nystrom,J. Moffatt,M. Redick,Kim Griest,M. Packard,M. Muszynski,J. Kampmeier,R. Bjella,S. Flynn,B. Elsaesser +183 more
TL;DR: The first spectroscopically confirmed type Ia supernova (ASASSN-18bt) was observed in the Kepler field by Dimitriadis et al. as mentioned in this paper.
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.
Journal ArticleDOI
Seeing Double: ASASSN-18bt Exhibits a Two-component Rise in the Early-time K2 Light Curve
Benjamin J. Shappee,Thomas W.-S. Holoien,Maria R. Drout,Katie Auchettl,Katie Auchettl,Maximilian Stritzinger,Maximilian Stritzinger,Christopher S. Kochanek,Krzysztof Z. Stanek,Edward J. Shaya,Gautham Narayan,Asas-Sn,J. S. Brown,Subhash Bose,D. Bersier,J. Brimacombe,Ping Chen,Subo Dong,S. Holmbo,Boaz Katz,J. A. Muñoz,Robert L. Mutel,R. S. Post,J. L. Prieto,J. L. Prieto,J. V. Shields,D. Tallon,Todd A. Thompson,Patrick J. Vallely,Steven Villanueva,L. Denneau,H. Flewelling,A. N. Heinze,K. W. Smith,B. Stalder,John L. Tonry,H. Weiland,Thomas Barclay,Geert Barentsen,Ann Marie Cody,J. Dotson,F. Foerster,P. Garnavich,Michael Gully-Santiago,Christina Hedges,S. Howell,S. Howell,D. Kasen,S. Margheim,Richard F. Mushotzky,Richard F. Mushotzky,A. Rest,Brad E. Tucker,A. Villar,Alfredo Zenteno,Kepler Spacecraft Team,G. Beerman,R. Bjella,G. Castillo,G. Castillo,Jeffrey L. Coughlin,B. Elsaesser,S. Flynn,R. Gangopadhyay,K. Griest,M. Hanley,J. Kampmeier,R. Kloetzel,L. Kohnert,C. Labonde,R. M. Larsen,K. A. Larson,K. M. McCalmont-Everton,C. McGinn,L. Migliorini,J. Moffatt,M. Muszynski,V. Nystrom,D. Osborne,M. Packard,C. A. Peterson,M. Redick,L. H. Reedy,S. E. Ross,B. Spencer,K. Steward,K. Steward,J. Van Cleve,J. Van Cleve,J. Vinícius de Miranda Cardoso,T. Weschler,A. Wheaton,Pan-STARRS,Joanna Bulger,K. C. Chambers,H. Flewelling,M. E. Huber,T. B. Lowe,E. A. Magnier,A. S. B. Schultz,C. Z. Waters,M. Willman,Ptss,Ptss,tnts,E. Baron,Zhihao Chen,Zhihao Chen,James M. DerKacy,Fang Huang,Fang Huang,Linyi Li,Wenxiong Li,Xue Li,Jun Mo,Liming Rui,Liming Rui,Han-Na Sai,Lifan Wang,Lingzhi Wang,Xiaofeng Wang,Danfeng Xiang,Jicheng Zhang,Jicheng Zhang,Jujia Zhang,Kaicheng Zhang,Tianmeng Zhang,Xinghan Zhang,Xulin Zhao,P. J. Brown,J. J. Hermes,J. Nordin,S. Points,S. Points,Ádám Sódor,G. Strampelli,G. Strampelli +136 more
TL;DR: In this paper, the authors present the discovery of ASASSN-18bt, the K2 light curve, and prediscovery data from ASAS-SN and the Asteroid Terrestrial-impact Last Alert System.
Journal ArticleDOI
The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data
Steve Bryson,Michelle Kunimoto,Ravi Kumar Kopparapu,Jeffrey L. Coughlin,Jeffrey L. Coughlin,William J. Borucki,David G. Koch,Victor Silva Aguirre,Christopher Allen,Geert Barentsen,Natalie M. Batalha,Travis A. Berger,Alan P. Boss,Lars A. Buchhave,Christopher J. Burke,Douglas A. Caldwell,Douglas A. Caldwell,Jennifer R. Campbell,Joseph Catanzarite,Hema Chandrasekaran,William J. Chaplin,William J. Chaplin,Jessie L. Christiansen,Jørgen Christensen-Dalsgaard,David R. Ciardi,Bruce D. Clarke,Bruce D. Clarke,William D. Cochran,Jessie L. Dotson,Laurance R. Doyle,Eduardo Seperuelo Duarte,Edward W. Dunham,Andrea K. Dupree,Michael Endl,James L. Fanson,Eric B. Ford,Maura Fujieh,Thomas N. Gautier,John C. Geary,Ronald L. Gilliland,Forrest R. Girouard,Alan Gould,Michael R. Haas,Christopher E. Henze,Matthew J. Holman,Andrew W. Howard,Steve B. Howell,Daniel Huber,Roger C. Hunter,Jon M. Jenkins,Hans Kjeldsen,Jeffery J. Kolodziejczak,K. Larson,David W. Latham,Jie Li,Jie Li,Savita Mathur,Savita Mathur,Soren Meibom,Christopher K. Middour,Robert L. Morris,Robert L. Morris,Timothy D. Morton,Fergal Mullally,Fergal Mullally,Susan E. Mullally,D. Pletcher,Andrej Prsa,Samuel N. Quinn,Elisa V. Quintana,Darin Ragozzine,Solange V. Ramirez,D. T. Sanderfer,D. T. Sanderfer,Dimitar Sasselov,Shawn Seader,Megan Shabram,Avi Shporer,Jeffrey C. Smith,Jeffrey C. Smith,Jason H. Steffen,Martin Still,Guillermo Torres,John Troeltzsch,Joseph D. Twicken,Joseph D. Twicken,Akm Kamal Uddin,Jeffrey Van Cleve,Janice Voss,Lauren M. Weiss,William F. Welsh,B. Wohler,B. Wohler,Khadeejah A. Zamudio +93 more
TL;DR: In this article, the authors presented the first analysis in terms of star-dependent instellation flux, which allows us to track HZ planets, and they found that the HZ occurrence of planets with radius between 0.5 and 1.5 R orbiting stars with effective temperatures between 4800 K and 6300 K. They also presented occurrence rates for various stellar populations and planet size ranges.