Alexis M. S. Smith, S. Csizmadia, D. Gandolfi, S. Albrecht, R. Alonso, O. Barragán, J. Cabrera, W. Cochran, F. Dai, H. Deeg, P. Eigmüller, M. Endl, A. Erikson, M. Fridlund, Akihiko Fukui, S. Grziwa, E. Guenther, A. Hatzes, D. Hidalgo, T. Hirano, J. Korth, M. Kuzuhara, J. Livingston, N. Narita, D. Nespral, P. Niraula, G. Nowak, E. Pallé, M. Pätzold, C. M. Persson, J. Prieto-Arranz, H. Rauer, Seth Redfield, Ignasi Ribas, V. V. Eylen
{"title":"EPIC 220501947 b and K2-237 b: two transiting hot Jupiters","authors":"Alexis M. S. Smith, S. Csizmadia, D. Gandolfi, S. Albrecht, R. Alonso, O. Barragán, J. Cabrera, W. Cochran, F. Dai, H. Deeg, P. Eigmüller, M. Endl, A. Erikson, M. Fridlund, Akihiko Fukui, S. Grziwa, E. Guenther, A. Hatzes, D. Hidalgo, T. Hirano, J. Korth, M. Kuzuhara, J. Livingston, N. Narita, D. Nespral, P. Niraula, G. Nowak, E. Pallé, M. Pätzold, C. M. Persson, J. Prieto-Arranz, H. Rauer, Seth Redfield, Ignasi Ribas, V. V. Eylen","doi":"10.32023/0001-5237/69.2.3","DOIUrl":null,"url":null,"abstract":"We report the discovery from K2 of two transiting hot Jupiter systems. EPIC 220501947 (observed in Campaign 8) is a K5 dwarf which hosts a planet slightly smaller than Jupiter, orbiting with a period of 4.0 d. We have made an independent discovery of K2-237 b (Campaign 11), which orbits an F6 dwarf every 2.2 d and has an inflated radius 50 - 60 per cent larger than that of Jupiter. We use high-precision radial velocity measurements, obtained using the HARPS and FIES spectrographs, to measure the planetary masses. We find that EPIC 220501947 b has a similar mass to Saturn, while K2-237 b is a little more massive than Jupiter.","PeriodicalId":8428,"journal":{"name":"arXiv: Earth and Planetary Astrophysics","volume":"29 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv: Earth and Planetary Astrophysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.32023/0001-5237/69.2.3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
We report the discovery from K2 of two transiting hot Jupiter systems. EPIC 220501947 (observed in Campaign 8) is a K5 dwarf which hosts a planet slightly smaller than Jupiter, orbiting with a period of 4.0 d. We have made an independent discovery of K2-237 b (Campaign 11), which orbits an F6 dwarf every 2.2 d and has an inflated radius 50 - 60 per cent larger than that of Jupiter. We use high-precision radial velocity measurements, obtained using the HARPS and FIES spectrographs, to measure the planetary masses. We find that EPIC 220501947 b has a similar mass to Saturn, while K2-237 b is a little more massive than Jupiter.
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