TWO HOT JUPITERS from K2 CAMPAIGN 4

Marshall C. Johnson; Davide Gandolfi; Malcolm Fridlund; Szilard Csizmadia; Michael Endl; Juan Cabrera; William D. Cochran; Hans J. Deeg; Sascha Grziwa; Ivan Ramírez; Artie P. Hatzes; Philipp Eigmüller; Oscar Barragán; Anders Erikson; Eike W. Guenther; Judith Korth; Teet Kuutma; David Nespral; Martin Pätzold; Enric Palle; Jorge Prieto-Arranz; Heike Rauer; Joonas Saario

doi:10.3847/0004-6256/151/6/171

TWO HOT JUPITERS from K2 CAMPAIGN 4

Marshall C. Johnson, Davide Gandolfi, Malcolm Fridlund, Szilard Csizmadia, Michael Endl, Juan Cabrera, William D. Cochran, Hans J. Deeg, Sascha Grziwa, Ivan Ramírez, Artie P. Hatzes, Philipp Eigmüller, Oscar Barragán, Anders Erikson, Eike W. Guenther, Judith Korth, Teet Kuutma, David Nespral, Martin Pätzold, Enric PalleJorge Prieto-Arranz, Heike Rauer, Joonas Saario

Research output: Contribution to journal › Article › peer-review

Abstract

We confirm the planetary nature of two transiting hot Jupiters discovered by the Kepler spacecraft's K2 extended mission in its Campaign 4, using precise radial velocity measurements from FIES@NOT, HARPS-N@TNG, and the coudé spectrograph on the McDonald Observatory 2.7 m telescope. K2-29 b (EPIC 211089792b) transits a K1V star with a period of 3.2589263 ± 0.0000015 days; its orbit is slightly eccentric (e=0.084^+0.032 _-0.051). It has a radius of R_J and a mass of M_J. Its host star exhibits significant rotational variability, and we measure a rotation period of days. K2-30 b (EPIC 210957318 b) transits a G6V star with a period of 4.098503 ± 0.000011 days. It has a radius of R_J and a mass of M_J. The star has a low metallicity for a hot Jupiter host, [Fe/H] = -0.15 ± 0.05.

Original language	English
Article number	171
Journal	Astronomical Journal
Volume	151
Issue number	6
DOIs	https://doi.org/10.3847/0004-6256/151/6/171
Publication status	Published - 2016 Jun
Externally published	Yes

Free keywords

planets and satellites: detection
planets and satellites: individual (EPIC 211089792 b (K2-29 b), EPIC 210957318 b (K2-30 b))
stars: fundamental parameters
stars: rotation

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10.3847/0004-6256/151/6/171

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Johnson, M. C., Gandolfi, D., Fridlund, M., Csizmadia, S., Endl, M., Cabrera, J., Cochran, W. D., Deeg, H. J., Grziwa, S., Ramírez, I., Hatzes, A. P., Eigmüller, P., Barragán, O., Erikson, A., Guenther, E. W., Korth, J., Kuutma, T., Nespral, D., Pätzold, M., ... Saario, J. (2016). TWO HOT JUPITERS from K2 CAMPAIGN 4. Astronomical Journal, 151(6), Article 171. https://doi.org/10.3847/0004-6256/151/6/171

@article{2c71056d89e3474bbdf748d35d527c69,

title = "TWO HOT JUPITERS from K2 CAMPAIGN 4",

abstract = "We confirm the planetary nature of two transiting hot Jupiters discovered by the Kepler spacecraft's K2 extended mission in its Campaign 4, using precise radial velocity measurements from FIES@NOT, HARPS-N@TNG, and the coud{\'e} spectrograph on the McDonald Observatory 2.7 m telescope. K2-29 b (EPIC 211089792b) transits a K1V star with a period of 3.2589263 ± 0.0000015 days; its orbit is slightly eccentric (e=0.084+0.032 -0.051). It has a radius of RJ and a mass of MJ. Its host star exhibits significant rotational variability, and we measure a rotation period of days. K2-30 b (EPIC 210957318 b) transits a G6V star with a period of 4.098503 ± 0.000011 days. It has a radius of RJ and a mass of MJ. The star has a low metallicity for a hot Jupiter host, [Fe/H] = -0.15 ± 0.05.",

keywords = "planets and satellites: detection, planets and satellites: individual (EPIC 211089792 b (K2-29 b), EPIC 210957318 b (K2-30 b)), stars: fundamental parameters, stars: rotation",

author = "Johnson, {Marshall C.} and Davide Gandolfi and Malcolm Fridlund and Szilard Csizmadia and Michael Endl and Juan Cabrera and Cochran, {William D.} and Deeg, {Hans J.} and Sascha Grziwa and Ivan Ram{\'i}rez and Hatzes, {Artie P.} and Philipp Eigm{\"u}ller and Oscar Barrag{\'a}n and Anders Erikson and Guenther, {Eike W.} and Judith Korth and Teet Kuutma and David Nespral and Martin P{\"a}tzold and Enric Palle and Jorge Prieto-Arranz and Heike Rauer and Joonas Saario",

year = "2016",

month = jun,

doi = "10.3847/0004-6256/151/6/171",

language = "English",

volume = "151",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing",

number = "6",

}

Johnson, MC, Gandolfi, D, Fridlund, M, Csizmadia, S, Endl, M, Cabrera, J, Cochran, WD, Deeg, HJ, Grziwa, S, Ramírez, I, Hatzes, AP, Eigmüller, P, Barragán, O, Erikson, A, Guenther, EW, Korth, J, Kuutma, T, Nespral, D, Pätzold, M, Palle, E, Prieto-Arranz, J, Rauer, H & Saario, J 2016, 'TWO HOT JUPITERS from K2 CAMPAIGN 4', Astronomical Journal, vol. 151, no. 6, 171. https://doi.org/10.3847/0004-6256/151/6/171

TY - JOUR

T1 - TWO HOT JUPITERS from K2 CAMPAIGN 4

AU - Johnson, Marshall C.

AU - Gandolfi, Davide

AU - Fridlund, Malcolm

AU - Csizmadia, Szilard

AU - Endl, Michael

AU - Cabrera, Juan

AU - Cochran, William D.

AU - Deeg, Hans J.

AU - Grziwa, Sascha

AU - Ramírez, Ivan

AU - Hatzes, Artie P.

AU - Eigmüller, Philipp

AU - Barragán, Oscar

AU - Erikson, Anders

AU - Guenther, Eike W.

AU - Korth, Judith

AU - Kuutma, Teet

AU - Nespral, David

AU - Pätzold, Martin

AU - Palle, Enric

AU - Prieto-Arranz, Jorge

AU - Rauer, Heike

AU - Saario, Joonas

PY - 2016/6

Y1 - 2016/6

N2 - We confirm the planetary nature of two transiting hot Jupiters discovered by the Kepler spacecraft's K2 extended mission in its Campaign 4, using precise radial velocity measurements from FIES@NOT, HARPS-N@TNG, and the coudé spectrograph on the McDonald Observatory 2.7 m telescope. K2-29 b (EPIC 211089792b) transits a K1V star with a period of 3.2589263 ± 0.0000015 days; its orbit is slightly eccentric (e=0.084+0.032 -0.051). It has a radius of RJ and a mass of MJ. Its host star exhibits significant rotational variability, and we measure a rotation period of days. K2-30 b (EPIC 210957318 b) transits a G6V star with a period of 4.098503 ± 0.000011 days. It has a radius of RJ and a mass of MJ. The star has a low metallicity for a hot Jupiter host, [Fe/H] = -0.15 ± 0.05.

AB - We confirm the planetary nature of two transiting hot Jupiters discovered by the Kepler spacecraft's K2 extended mission in its Campaign 4, using precise radial velocity measurements from FIES@NOT, HARPS-N@TNG, and the coudé spectrograph on the McDonald Observatory 2.7 m telescope. K2-29 b (EPIC 211089792b) transits a K1V star with a period of 3.2589263 ± 0.0000015 days; its orbit is slightly eccentric (e=0.084+0.032 -0.051). It has a radius of RJ and a mass of MJ. Its host star exhibits significant rotational variability, and we measure a rotation period of days. K2-30 b (EPIC 210957318 b) transits a G6V star with a period of 4.098503 ± 0.000011 days. It has a radius of RJ and a mass of MJ. The star has a low metallicity for a hot Jupiter host, [Fe/H] = -0.15 ± 0.05.

KW - planets and satellites: detection

KW - planets and satellites: individual (EPIC 211089792 b (K2-29 b), EPIC 210957318 b (K2-30 b))

KW - stars: fundamental parameters

KW - stars: rotation

U2 - 10.3847/0004-6256/151/6/171

DO - 10.3847/0004-6256/151/6/171

M3 - Article

AN - SCOPUS:84975889765

SN - 0004-6256

VL - 151

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

M1 - 171

ER -

TWO HOT JUPITERS from K2 CAMPAIGN 4

Abstract

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