J
J. Koppenhoefer
Researcher at Ludwig Maximilian University of Munich
Publications - 9
Citations - 1403
J. Koppenhoefer is an academic researcher from Ludwig Maximilian University of Munich. The author has contributed to research in topics: Stars & Hot Jupiter. The author has an hindex of 7, co-authored 9 publications receiving 1357 citations.
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The Pan-STARRS1 Surveys
K. C. Chambers,E. A. Magnier,Nigel Metcalfe,H. Flewelling,M. E. Huber,Christopher Waters,L. Denneau,Peter W. Draper,Daniel J. Farrow,D. P. Finkbeiner,C. Holmberg,J. Koppenhoefer,P. A. Price,A. Rest,Roberto P. Saglia,Edward F. Schlafly,Stephen J. Smartt,W. E. Sweeney,R. J. Wainscoat,W. S. Burgett,S. Chastel,T. Grav,J. N. Heasley,Klaus W. Hodapp,Robert Jedicke,Nick Kaiser,R. P. Kudritzki,G. A. Luppino,Robert H. Lupton,David G. Monet,John Morgan,Peter M. Onaka,Bernie Shiao,Christopher W. Stubbs,John L. Tonry,R. L. White,Eduardo Bañados,Eric F. Bell,Ralf Bender,Edouard J. Bernard,M. Boegner,F. Boffi,M. T. Botticella,Annalisa Calamida,Stefano Casertano,W.-P. Chen,X. Chen,Shaun Cole,Niall R. Deacon,C. Frenk,Alan Fitzsimmons,Suvi Gezari,V. Gibbs,C. Goessl,T. Goggia,R. Gourgue,Bertrand Goldman,Phillip Grant,Eva K. Grebel,Nigel Hambly,G. Hasinger,Alan Heavens,Timothy M. Heckman,Robert Henderson,Th. Henning,M. J. Holman,Ulrich Hopp,Wing-Huen Ip,S. Isani,M. Jackson,C. D. Keyes,Anton M. Koekemoer,Rubina Kotak,D. Le,D. Liska,K. S. Long,John R. Lucey,M. Liu,Nicolas F. Martin,G. Masci,Brian McLean,E. Mindel,P. Misra,E. Morganson,David Murphy,A. Obaika,Gautham Narayan,M. Nieto-Santisteban,Peder Norberg,John A. Peacock,E. A. Pier,Marc Postman,N. Primak,C. Rae,A. Rai,Adam G. Riess,A. Riffeser,H. W. Rix,Siegfried Röser,R. Russel,L. Rutz,Elena Schilbach,A. S. B. Schultz,Daniel Scolnic,Louis Gregory Strolger,Alexander S. Szalay,Stella Seitz,E. Small,K. W. Smith,D. R. Soderblom,P. Taylor,Robert R. Thomson,Andy Taylor,A. R. Thakar,J. Thiel,D. A. Thilker,D. Unger,Yuji Urata,Jeff A. Valenti,J. Wagner,T. Walder,Fabian Walter,S. Watters,S. Werner,W. M. Wood-Vasey,R. F. G. Wyse +125 more
TL;DR: Pan-STARRS1 has carried out a set of distinct synoptic imaging sky surveys including the 3ππ$ Steradian Survey and the Medium Deep Survey in 5 bands as mentioned in this paper.
Journal ArticleDOI
Search for giant planets in M 67 - IV. Survey results
A. Brucalassi,J. Koppenhoefer,R. P. Saglia,Luca Pasquini,Maria-Teresa Ruiz,Piercarlo Bonifacio,L. R. Bedin,Mattia Libralato,K. Biazzo,C. Melo,C. Lovis,Sofia Randich +11 more
TL;DR: In this paper, the authors present the results of a seven-year-long radial velocity survey of a sample of 88 main-sequence and evolved stars to reveal signatures of Jupiter-mass planets in the solar-age and solar-metallicity open cluster M 67.
Journal ArticleDOI
Search for giant planets in M67 IV: survey results
A. Brucalassi,J. Koppenhoefer,Roberto P. Saglia,Luca Pasquini,Maria-Teresa Ruiz,P. Bonifacio,L. R. Bedin,Mattia Libralato,K. Biazzo,C. Melo,C. Lovis,Sofia Randich +11 more
TL;DR: In this article, the authors present the results of a seven-year-long radial velocity survey of a sample of 88 main-sequence and evolved stars to reveal signatures of Jupiter-mass planets in the solar-age and solar-metallicity open cluster M67.
Journal ArticleDOI
Properties of M31. V: 298 Eclipsing Binaries from PAndromeda
Chien-Hsiu Lee,J. Koppenhoefer,Stella Seitz,Ralf Bender,A. Riffeser,Mihael Kodric,Ulrich Hopp,Jan Snigula,C. Goessl,R. P. Kudritzki,W. S. Burgett,K. C. Chambers,Klaus W. Hodapp,Nick Kaiser,Christopher M. Waters +14 more
TL;DR: In this article, a modified box-fitting algorithm was applied to search for eclipsing binary candidates and determine their period, and then they classified these candidates into detached, semi-detached, and contact systems using the Fourier decomposition method.
Journal ArticleDOI
Properties of M31. III: Candidate Beat Cepheids from PS1 PAndromeda Data and Their Implication on Metallicity Gradient
Chien-Hsiu Lee,Mihael Kodric,Stella Seitz,A. Riffeser,J. Koppenhoefer,Ralf Bender,Ulrich Hopp,C. Goessl,Jan Snigula,W. S. Burgett,K. C. Chambers,H. Flewelling,Klaus W. Hodapp,Nick Kaiser,R. P. Kudritzki,P. A. Price,John L. Tonry,R. J. Wainscoat +17 more
TL;DR: In this paper, the authors presented a sample of M31 beat Cepheids from the Pan-STARRS 1 PAndromeda campaign and used the relation between fundamental mode period and the ratio of fundamental to first overtone period to derive the metallicity at the position of the beat Cepsheids using the relations from the model of Buchler.