An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope

Raphaëlle D. Haywood; Andrew Vanderburg; Annelies Mortier; Helen A.C. Giles; Mercedes López-Morales; Eric D. Lopez; Luca Malavolta; David Charbonneau; Andrew Collier Cameron; Jeffrey L. Coughlin; Courtney D. Dressing; Chantanelle Nava; David W. Latham; Xavier Dumusque; Christophe Lovis; Emilio Molinari; Francesco Pepe; Alessandro Sozzetti; Stéphane Udry; François Bouchy; John A. Johnson; Michel Mayor; Giusi Micela; David Phillips; Giampaolo Piotto; Ken Rice; Dimitar Sasselov; Damien Ségransan; Chris Watson; Laura Affer; Aldo S. Bonomo; Lars A. Buchhave; David R. Ciardi; Aldo F. Fiorenzano; And Avet Harutyunyan

doi:10.3847/1538-3881/aab8f3

An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope

Raphaëlle D. Haywood
, Andrew Vanderburg
, Annelies Mortier
, Helen A.C. Giles
, Mercedes López-Morales
, Eric D. Lopez
, Luca Malavolta
, David Charbonneau
, Andrew Collier Cameron
, Jeffrey L. Coughlin
, Courtney D. Dressing
, Chantanelle Nava
, David W. Latham
, Xavier Dumusque
, Christophe Lovis
, Emilio Molinari
, Francesco Pepe
, Alessandro Sozzetti
, Stéphane Udry
, François Bouchy

John A. Johnson, Michel Mayor, Giusi Micela, David Phillips, Giampaolo Piotto, Ken Rice, Dimitar Sasselov, Damien Ségransan, Chris Watson, Laura Affer, Aldo S. Bonomo, Lars A. Buchhave, David R. Ciardi, Aldo F. Fiorenzano, And Avet Harutyunyan

Physics and Astronomy

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

22 Scopus citations

Abstract

We present the confirmation of a small, moderately irradiated (F = 155 ± 7 F _⊕) Neptune with a substantial gas envelope in a P = 11.8728787 ± 0.0000085 day orbit about a quiet, Sun-like G0V star Kepler-1655. Based on our analysis of the Kepler light curve, we determined Kepler-1655b's radius to be 2.213 ± 0.082 R _⊕. We acquired 95 high-resolution spectra with Telescopio Nazionale Galileo/HARPS-N, enabling us to characterize the host star and determine an accurate mass for Kepler-1655b of via Gaussian-process regression. Our mass determination excludes an Earth-like composition with 98% confidence. Kepler-1655b falls on the upper edge of the evaporation valley, in the relatively sparsely occupied transition region between rocky and gas-rich planets. It is therefore part of a population of planets that we should actively seek to characterize further.

Original language	English
Article number	203
Journal	Astronomical Journal
Volume	155
Issue number	5
DOIs	https://doi.org/10.3847/1538-3881/aab8f3
State	Published - May 2018

Keywords

planets and satellites: detection
planets and satellites: gaseous planets
stars: individual (Kepler-1655, KOI-280, KIC 4141376, 2MASS J19064546+3912428)

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10.3847/1538-3881/aab8f3

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Haywood, R. D., Vanderburg, A., Mortier, A., Giles, H. A. C., López-Morales, M., Lopez, E. D., Malavolta, L., Charbonneau, D., Cameron, A. C., Coughlin, J. L., Dressing, C. D., Nava, C., Latham, D. W., Dumusque, X., Lovis, C., Molinari, E., Pepe, F., Sozzetti, A., Udry, S., ... Harutyunyan, A. A. (2018). An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope. Astronomical Journal, 155(5), Article 203. https://doi.org/10.3847/1538-3881/aab8f3

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title = "An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope",

abstract = "We present the confirmation of a small, moderately irradiated (F = 155 ± 7 F ⊕) Neptune with a substantial gas envelope in a P = 11.8728787 ± 0.0000085 day orbit about a quiet, Sun-like G0V star Kepler-1655. Based on our analysis of the Kepler light curve, we determined Kepler-1655b's radius to be 2.213 ± 0.082 R ⊕. We acquired 95 high-resolution spectra with Telescopio Nazionale Galileo/HARPS-N, enabling us to characterize the host star and determine an accurate mass for Kepler-1655b of via Gaussian-process regression. Our mass determination excludes an Earth-like composition with 98\% confidence. Kepler-1655b falls on the upper edge of the evaporation valley, in the relatively sparsely occupied transition region between rocky and gas-rich planets. It is therefore part of a population of planets that we should actively seek to characterize further.",

keywords = "planets and satellites: detection, planets and satellites: gaseous planets, stars: individual (Kepler-1655, KOI-280, KIC 4141376, 2MASS J19064546+3912428)",

author = "Haywood, \{Rapha{\"e}lle D.\} and Andrew Vanderburg and Annelies Mortier and Giles, \{Helen A.C.\} and Mercedes L{\'o}pez-Morales and Lopez, \{Eric D.\} and Luca Malavolta and David Charbonneau and Cameron, \{Andrew Collier\} and Coughlin, \{Jeffrey L.\} and Dressing, \{Courtney D.\} and Chantanelle Nava and Latham, \{David W.\} and Xavier Dumusque and Christophe Lovis and Emilio Molinari and Francesco Pepe and Alessandro Sozzetti and St{\'e}phane Udry and Fran{\c c}ois Bouchy and Johnson, \{John A.\} and Michel Mayor and Giusi Micela and David Phillips and Giampaolo Piotto and Ken Rice and Dimitar Sasselov and Damien S{\'e}gransan and Chris Watson and Laura Affer and Bonomo, \{Aldo S.\} and Buchhave, \{Lars A.\} and Ciardi, \{David R.\} and Fiorenzano, \{Aldo F.\} and Harutyunyan, \{And Avet\}",

year = "2018",

month = may,

doi = "10.3847/1538-3881/aab8f3",

language = "English",

volume = "155",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

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Haywood, RD, Vanderburg, A, Mortier, A, Giles, HAC, López-Morales, M, Lopez, ED, Malavolta, L, Charbonneau, D, Cameron, AC, Coughlin, JL, Dressing, CD, Nava, C, Latham, DW, Dumusque, X, Lovis, C, Molinari, E, Pepe, F, Sozzetti, A, Udry, S, Bouchy, F, Johnson, JA, Mayor, M, Micela, G, Phillips, D, Piotto, G, Rice, K, Sasselov, D, Ségransan, D, Watson, C, Affer, L, Bonomo, AS, Buchhave, LA, Ciardi, DR, Fiorenzano, AF & Harutyunyan, AA 2018, 'An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope', Astronomical Journal, vol. 155, no. 5, 203. https://doi.org/10.3847/1538-3881/aab8f3

TY - JOUR

T1 - An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope

AU - Haywood, Raphaëlle D.

AU - Vanderburg, Andrew

AU - Mortier, Annelies

AU - Giles, Helen A.C.

AU - López-Morales, Mercedes

AU - Lopez, Eric D.

AU - Malavolta, Luca

AU - Charbonneau, David

AU - Cameron, Andrew Collier

AU - Coughlin, Jeffrey L.

AU - Dressing, Courtney D.

AU - Nava, Chantanelle

AU - Latham, David W.

AU - Dumusque, Xavier

AU - Lovis, Christophe

AU - Molinari, Emilio

AU - Pepe, Francesco

AU - Sozzetti, Alessandro

AU - Udry, Stéphane

AU - Bouchy, François

AU - Johnson, John A.

AU - Mayor, Michel

AU - Micela, Giusi

AU - Phillips, David

AU - Piotto, Giampaolo

AU - Rice, Ken

AU - Sasselov, Dimitar

AU - Ségransan, Damien

AU - Watson, Chris

AU - Affer, Laura

AU - Bonomo, Aldo S.

AU - Buchhave, Lars A.

AU - Ciardi, David R.

AU - Fiorenzano, Aldo F.

AU - Harutyunyan, And Avet

PY - 2018/5

Y1 - 2018/5

N2 - We present the confirmation of a small, moderately irradiated (F = 155 ± 7 F ⊕) Neptune with a substantial gas envelope in a P = 11.8728787 ± 0.0000085 day orbit about a quiet, Sun-like G0V star Kepler-1655. Based on our analysis of the Kepler light curve, we determined Kepler-1655b's radius to be 2.213 ± 0.082 R ⊕. We acquired 95 high-resolution spectra with Telescopio Nazionale Galileo/HARPS-N, enabling us to characterize the host star and determine an accurate mass for Kepler-1655b of via Gaussian-process regression. Our mass determination excludes an Earth-like composition with 98% confidence. Kepler-1655b falls on the upper edge of the evaporation valley, in the relatively sparsely occupied transition region between rocky and gas-rich planets. It is therefore part of a population of planets that we should actively seek to characterize further.

AB - We present the confirmation of a small, moderately irradiated (F = 155 ± 7 F ⊕) Neptune with a substantial gas envelope in a P = 11.8728787 ± 0.0000085 day orbit about a quiet, Sun-like G0V star Kepler-1655. Based on our analysis of the Kepler light curve, we determined Kepler-1655b's radius to be 2.213 ± 0.082 R ⊕. We acquired 95 high-resolution spectra with Telescopio Nazionale Galileo/HARPS-N, enabling us to characterize the host star and determine an accurate mass for Kepler-1655b of via Gaussian-process regression. Our mass determination excludes an Earth-like composition with 98% confidence. Kepler-1655b falls on the upper edge of the evaporation valley, in the relatively sparsely occupied transition region between rocky and gas-rich planets. It is therefore part of a population of planets that we should actively seek to characterize further.

KW - planets and satellites: detection

KW - planets and satellites: gaseous planets

KW - stars: individual (Kepler-1655, KOI-280, KIC 4141376, 2MASS J19064546+3912428)

UR - https://www.scopus.com/pages/publications/85047351276

U2 - 10.3847/1538-3881/aab8f3

DO - 10.3847/1538-3881/aab8f3

M3 - Article

AN - SCOPUS:85047351276

SN - 0004-6256

VL - 155

JO - Astronomical Journal

JF - Astronomical Journal

IS - 5

M1 - 203

ER -

An Accurate Mass Determination for Kepler-1655b, a Moderately Irradiated World with a Significant Volatile Envelope

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Keywords

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