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Characterizing K2 planet discoveries : a super-Earth transiting the bright K dwarf HIP 116454
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dc.contributor.author | Vanderburg, Andrew | |
dc.contributor.author | Montet, Benjamin T. | |
dc.contributor.author | Johnson, John Asher | |
dc.contributor.author | Buchhave, Lars A. | |
dc.contributor.author | Zeng, Li | |
dc.contributor.author | Pepe, Francesco | |
dc.contributor.author | Cameron, Andrew Collier | |
dc.contributor.author | Latham, David W. | |
dc.contributor.author | Molinari, Emilio | |
dc.contributor.author | Udry, Stephane | |
dc.contributor.author | Lovis, Christophe | |
dc.contributor.author | Matthews, Jaymie M. | |
dc.contributor.author | Cameron, Chris | |
dc.contributor.author | Law, Nicholas | |
dc.contributor.author | Bowler, Brendan P. | |
dc.contributor.author | Angus, Ruth | |
dc.contributor.author | Baranec, Christoph | |
dc.contributor.author | Bieryla, Allyson | |
dc.contributor.author | Boschin, Walter | |
dc.contributor.author | Charbonneau, David | |
dc.contributor.author | Cosentino, Rosario | |
dc.contributor.author | Dumusque, Xavier | |
dc.contributor.author | Figueira, Pedro | |
dc.contributor.author | Guenther, David B. | |
dc.contributor.author | Harutyunyan, Avet | |
dc.contributor.author | Hellier, Coel | |
dc.contributor.author | Kuschnig, Rainer | |
dc.contributor.author | Lopez-Morales, Mercedes | |
dc.contributor.author | Mayor, Michel | |
dc.contributor.author | Micela, Giusi | |
dc.contributor.author | Moffat, Anthony F. J. | |
dc.contributor.author | Pedani, Marco | |
dc.contributor.author | Phillip, David F. | |
dc.contributor.author | Piotto, Giampaolo | |
dc.contributor.author | Pollacco, Don | |
dc.contributor.author | Queloz, Didier | |
dc.contributor.author | Rice, Ken | |
dc.contributor.author | Riddle, Reed | |
dc.contributor.author | Rowe, Jason F. | |
dc.contributor.author | Rucinski, Slavek M. | |
dc.contributor.author | Sasselov, Dimitar | |
dc.contributor.author | Segransan, Damien | |
dc.contributor.author | Sozzetti, Alessandro | |
dc.contributor.author | Szentgyorgyi, Andrew | |
dc.contributor.author | Watson, Chris | |
dc.contributor.author | Weiss, Werner W. | |
dc.date.accessioned | 2015-03-17T17:31:02Z | |
dc.date.available | 2015-03-17T17:31:02Z | |
dc.date.issued | 2015-02-10 | |
dc.identifier | 175141498 | |
dc.identifier | dca98a26-fe6c-4eeb-b101-41032c8c1c2d | |
dc.identifier | 000349236900059 | |
dc.identifier | 84922770995 | |
dc.identifier | 000349236900059 | |
dc.identifier.citation | Vanderburg , A , Montet , B T , Johnson , J A , Buchhave , L A , Zeng , L , Pepe , F , Cameron , A C , Latham , D W , Molinari , E , Udry , S , Lovis , C , Matthews , J M , Cameron , C , Law , N , Bowler , B P , Angus , R , Baranec , C , Bieryla , A , Boschin , W , Charbonneau , D , Cosentino , R , Dumusque , X , Figueira , P , Guenther , D B , Harutyunyan , A , Hellier , C , Kuschnig , R , Lopez-Morales , M , Mayor , M , Micela , G , Moffat , A F J , Pedani , M , Phillip , D F , Piotto , G , Pollacco , D , Queloz , D , Rice , K , Riddle , R , Rowe , J F , Rucinski , S M , Sasselov , D , Segransan , D , Sozzetti , A , Szentgyorgyi , A , Watson , C & Weiss , W W 2015 , ' Characterizing K2 planet discoveries : a super-Earth transiting the bright K dwarf HIP 116454 ' , Astrophysical Journal , vol. 800 , no. 1 , 59 . https://doi.org/10.1088/0004-637X/800/1/59 | en |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | ORCID: /0000-0002-8863-7828/work/58531339 | |
dc.identifier.uri | https://hdl.handle.net/10023/6257 | |
dc.description.abstract | We report the first planet discovery from the two-wheeled Kepler (K2) mission: HIP 116454 b. The host star HIP 116454 is a bright (V = 10.1, K = 8.0) K1 dwarf with high proper motion and a parallax-based distance of 55.2 ± 5.4 pc. Based on high-resolution optical spectroscopy, we find that the host star is metal-poor with [Fe/H] =–0.16 ± 0.08 and has a radius R = 0.716 ± 0.024 R ☉ and mass M = 0.775 ± 0.027 M ☉. The star was observed by the Kepler spacecraft during its Two-Wheeled Concept Engineering Test in 2014 February. During the 9 days of observations, K2 observed a single transit event. Using a new K2 photometric analysis technique, we are able to correct small telescope drifts and recover the observed transit at high confidence, corresponding to a planetary radius of pR = 2.53 ± 0.18 R ⊕. Radial velocity observations with the HARPS-N spectrograph reveal a 11.82 ± 1.33 M ⊕ planet in a 9.1 day orbit, consistent with the transit depth, duration, and ephemeris. Follow-up photometric measurements from the MOST satellite confirm the transit observed in the K2 photometry and provide a refined ephemeris, making HIP 116454 b amenable for future follow-up observations of this latest addition to the growing population of transiting super-Earths around nearby, bright stars. | |
dc.format.extent | 14 | |
dc.format.extent | 1340756 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal | en |
dc.subject | Planets and satellites: detection | en |
dc.subject | Techniques: photometric | en |
dc.subject | Laser adaptive optics | en |
dc.subject | Neptune-mass planet | en |
dc.subject | Sky survey | en |
dc.subject | Proper-motion | en |
dc.subject | Short-period | en |
dc.subject | HD 97658B | en |
dc.subject | Exoplanet | en |
dc.subject | Kepler | en |
dc.subject | Stars | en |
dc.subject | Mission | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Characterizing K2 planet discoveries : a super-Earth transiting the bright K dwarf HIP 116454 | en |
dc.type | Journal article | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | European Commission | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | PPARC - Now STFC | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1088/0004-637X/800/1/59 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | ST/J001651/1 | en |
dc.identifier.grantnumber | en | |
dc.identifier.grantnumber | ST/I000666/1 | en |
dc.identifier.grantnumber | PP/D000890/1 | en |
dc.identifier.grantnumber | ST/M001296/1 | en |
dc.identifier.grantnumber | ST/G001006/1 | en |
dc.identifier.grantnumber | PP/F000065/1 | en |
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