The discovery and mass measurement of a new ultra-short-period Planet: K2-131b

Fei Dai; Joshua N. Winn; Davide Gandolfi; Sharon X. Wang; Johanna K. Teske; Jennifer Burt; Simon Albrecht; Oscar Barragán; William D. Cochran; Michael Endl; Malcolm Fridlund; Artie P. Hatzes; Teruyuki Hirano; Lea A. Hirsch; Marshall C. Johnson; Anders Bo Justesen; John Livingston; Carina M. Persson; Jorge Prieto-Arranz; Andrew Vanderburg; Roi Alonso; Giuliano Antoniciello; Pamela Arriagada; R. P. Butler; Juan Cabrera; Jeffrey D. Crane; Felice Cusano; Szilárd Csizmadia; Hans Deeg; Sergio B. Dieterich; Philipp Eigmüller; Anders Erikson; Mark E. Everett; Akihiko Fukui; Sascha Grziwa; Eike W. Guenther; Gregory W. Henry; Steve B. Howell; John Asher Johnson; Judith Korth; Masayuki Kuzuhara; Norio Narita; David Nespral; Grzegorz Nowak; Enric Palle; Martin Pätzold; Heike Rauer; Pilar Montañés Rodríguez; Stephen A. Shectman; Alexis M.S. Smith; Ian B. Thompson; Vincent Van Eylen; Michael W. Williamson; Robert A. Wittenmyer

doi:10.3847/1538-3881/aa9065

The discovery and mass measurement of a new ultra-short-period Planet: K2-131b

Fei Dai, Joshua N. Winn, Davide Gandolfi, Sharon X. Wang, Johanna K. Teske, Jennifer Burt, Simon Albrecht, Oscar Barragán, William D. Cochran, Michael Endl, Malcolm Fridlund, Artie P. Hatzes, Teruyuki Hirano, Lea A. Hirsch, Marshall C. Johnson, Anders Bo Justesen, John Livingston, Carina M. Persson, Jorge Prieto-Arranz, Andrew VanderburgRoi Alonso, Giuliano Antoniciello, Pamela Arriagada, R. P. Butler, Juan Cabrera, Jeffrey D. Crane, Felice Cusano, Szilárd Csizmadia, Hans Deeg, Sergio B. Dieterich, Philipp Eigmüller, Anders Erikson, Mark E. Everett, Akihiko Fukui, Sascha Grziwa, Eike W. Guenther, Gregory W. Henry, Steve B. Howell, John Asher Johnson, Judith Korth, Masayuki Kuzuhara, Norio Narita, David Nespral, Grzegorz Nowak, Enric Palle, Martin Pätzold, Heike Rauer, Pilar Montañés Rodríguez, Stephen A. Shectman, Alexis M.S. Smith, Ian B. Thompson, Vincent Van Eylen, Michael W. Williamson, Robert A. Wittenmyer

Astrophysical Sciences

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

53 Scopus citations

Abstract

We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, K2-131b, was discovered in K2 Campaign 10. It has a radius of and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the "floating chunk offset" method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of and a mean density of g cm^-3.

Original language	English (US)
Article number	226
Journal	Astronomical Journal
Volume	154
Issue number	6
DOIs	https://doi.org/10.3847/1538-3881/aa9065
State	Published - Dec 2017

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

individual (EPIC 228732031)
planetary systems - stars

Access to Document

10.3847/1538-3881/aa9065

Cite this

Dai, F., Winn, J. N., Gandolfi, D., Wang, S. X., Teske, J. K., Burt, J., Albrecht, S., Barragán, O., Cochran, W. D., Endl, M., Fridlund, M., Hatzes, A. P., Hirano, T., Hirsch, L. A., Johnson, M. C., Bo Justesen, A., Livingston, J., Persson, C. M., Prieto-Arranz, J., ... Wittenmyer, R. A. (2017). The discovery and mass measurement of a new ultra-short-period Planet: K2-131b. Astronomical Journal, 154(6), Article 226. https://doi.org/10.3847/1538-3881/aa9065

@article{28c235a2fd29483da33cea535b1f57cc,

title = "The discovery and mass measurement of a new ultra-short-period Planet: K2-131b",

abstract = "We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, K2-131b, was discovered in K2 Campaign 10. It has a radius of and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the {"}floating chunk offset{"} method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of and a mean density of g cm-3.",

keywords = "individual (EPIC 228732031), planetary systems - stars",

author = "Fei Dai and Winn, {Joshua N.} and Davide Gandolfi and Wang, {Sharon X.} and Teske, {Johanna K.} and Jennifer Burt and Simon Albrecht and Oscar Barrag{\'a}n and Cochran, {William D.} and Michael Endl and Malcolm Fridlund and Hatzes, {Artie P.} and Teruyuki Hirano and Hirsch, {Lea A.} and Johnson, {Marshall C.} and {Bo Justesen}, Anders and John Livingston and Persson, {Carina M.} and Jorge Prieto-Arranz and Andrew Vanderburg and Roi Alonso and Giuliano Antoniciello and Pamela Arriagada and Butler, {R. P.} and Juan Cabrera and Crane, {Jeffrey D.} and Felice Cusano and Szil{\'a}rd Csizmadia and Hans Deeg and Dieterich, {Sergio B.} and Philipp Eigm{\"u}ller and Anders Erikson and Everett, {Mark E.} and Akihiko Fukui and Sascha Grziwa and Guenther, {Eike W.} and Henry, {Gregory W.} and Howell, {Steve B.} and Johnson, {John Asher} and Judith Korth and Masayuki Kuzuhara and Norio Narita and David Nespral and Grzegorz Nowak and Enric Palle and Martin P{\"a}tzold and Heike Rauer and Rodr{\'i}guez, {Pilar Monta{\~n}{\'e}s} and Shectman, {Stephen A.} and Smith, {Alexis M.S.} and Thompson, {Ian B.} and Eylen, {Vincent Van} and Williamson, {Michael W.} and Wittenmyer, {Robert A.}",

year = "2017",

month = dec,

doi = "10.3847/1538-3881/aa9065",

language = "English (US)",

volume = "154",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Dai, F, Winn, JN, Gandolfi, D, Wang, SX, Teske, JK, Burt, J, Albrecht, S, Barragán, O, Cochran, WD, Endl, M, Fridlund, M, Hatzes, AP, Hirano, T, Hirsch, LA, Johnson, MC, Bo Justesen, A, Livingston, J, Persson, CM, Prieto-Arranz, J, Vanderburg, A, Alonso, R, Antoniciello, G, Arriagada, P, Butler, RP, Cabrera, J, Crane, JD, Cusano, F, Csizmadia, S, Deeg, H, Dieterich, SB, Eigmüller, P, Erikson, A, Everett, ME, Fukui, A, Grziwa, S, Guenther, EW, Henry, GW, Howell, SB, Johnson, JA, Korth, J, Kuzuhara, M, Narita, N, Nespral, D, Nowak, G, Palle, E, Pätzold, M, Rauer, H, Rodríguez, PM, Shectman, SA, Smith, AMS, Thompson, IB, Eylen, VV, Williamson, MW & Wittenmyer, RA 2017, 'The discovery and mass measurement of a new ultra-short-period Planet: K2-131b', Astronomical Journal, vol. 154, no. 6, 226. https://doi.org/10.3847/1538-3881/aa9065

TY - JOUR

T1 - The discovery and mass measurement of a new ultra-short-period Planet

T2 - K2-131b

AU - Dai, Fei

AU - Winn, Joshua N.

AU - Gandolfi, Davide

AU - Wang, Sharon X.

AU - Teske, Johanna K.

AU - Burt, Jennifer

AU - Albrecht, Simon

AU - Barragán, Oscar

AU - Cochran, William D.

AU - Endl, Michael

AU - Fridlund, Malcolm

AU - Hatzes, Artie P.

AU - Hirano, Teruyuki

AU - Hirsch, Lea A.

AU - Johnson, Marshall C.

AU - Bo Justesen, Anders

AU - Livingston, John

AU - Persson, Carina M.

AU - Prieto-Arranz, Jorge

AU - Vanderburg, Andrew

AU - Alonso, Roi

AU - Antoniciello, Giuliano

AU - Arriagada, Pamela

AU - Butler, R. P.

AU - Cabrera, Juan

AU - Crane, Jeffrey D.

AU - Cusano, Felice

AU - Csizmadia, Szilárd

AU - Deeg, Hans

AU - Dieterich, Sergio B.

AU - Eigmüller, Philipp

AU - Erikson, Anders

AU - Everett, Mark E.

AU - Fukui, Akihiko

AU - Grziwa, Sascha

AU - Guenther, Eike W.

AU - Henry, Gregory W.

AU - Howell, Steve B.

AU - Johnson, John Asher

AU - Korth, Judith

AU - Kuzuhara, Masayuki

AU - Narita, Norio

AU - Nespral, David

AU - Nowak, Grzegorz

AU - Palle, Enric

AU - Pätzold, Martin

AU - Rauer, Heike

AU - Rodríguez, Pilar Montañés

AU - Shectman, Stephen A.

AU - Smith, Alexis M.S.

AU - Thompson, Ian B.

AU - Eylen, Vincent Van

AU - Williamson, Michael W.

AU - Wittenmyer, Robert A.

PY - 2017/12

Y1 - 2017/12

N2 - We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, K2-131b, was discovered in K2 Campaign 10. It has a radius of and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the "floating chunk offset" method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of and a mean density of g cm-3.

AB - We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, K2-131b, was discovered in K2 Campaign 10. It has a radius of and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the "floating chunk offset" method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of and a mean density of g cm-3.

KW - individual (EPIC 228732031)

KW - planetary systems - stars

UR - http://www.scopus.com/inward/record.url?scp=85039418309&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85039418309&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/aa9065

DO - 10.3847/1538-3881/aa9065

M3 - Article

AN - SCOPUS:85039418309

SN - 0004-6256

VL - 154

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

M1 - 226

ER -

The discovery and mass measurement of a new ultra-short-period Planet: K2-131b

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this