The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

Erik A. Petigura; Andrew W. Howard; Geoffrey W. Marcy; John Asher Johnson; Howard Isaacson; Phillip A. Cargile; Leslie Hebb; Benjamin J. Fulton; Lauren M. Weiss; Timothy D. Morton; Joshua N. Winn; Leslie A. Rogers; Evan Sinukoff; Lea A. Hirsch; Ian J.M. Crossfield

doi:10.3847/1538-3881/aa80de

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

Erik A. Petigura, Andrew W. Howard, Geoffrey W. Marcy, John Asher Johnson, Howard Isaacson, Phillip A. Cargile, Leslie Hebb, Benjamin J. Fulton, Lauren M. Weiss, Timothy D. Morton, Joshua N. Winn, Leslie A. Rogers, Evan Sinukoff, Lea A. Hirsch, Ian J.M. Crossfield

Astrophysical Sciences

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264 Scopus citations

Abstract

The California-Kepler Survey (CKS) is an observational program developed to improve our knowledge of the properties of stars found to host transiting planets by NASA's Kepler Mission. The improvement stems from new high-resolution optical spectra obtained using HIRES at the W. M. Keck Observatory. The CKS stellar sample comprises 1305 stars classified as Kepler objects of interest, hosting a total of 2075 transiting planets. The primary sample is magnitude-limited (Kp < 14.2) and contains 960 stars with 1385 planets. The sample was extended to include some fainter stars that host multiple planets, ultra-short period planets, or habitable zone planets. The spectroscopic parameters were determined with two different codes, one based on template matching and the other on direct spectral synthesis using radiative transfer. We demonstrate a precision of 60 K in T_eff, 0.10 dex in log g, 0.04 dex in [Fe/H], and 1.0km s^-1 in V sin i. In this paper, we describe the CKS project and present a uniform catalog of spectroscopic parameters. Subsequent papers in this series present catalogs of derived stellar properties such as mass, radius, and age; revised planet properties; and statistical explorations of the ensemble. CKS is the largest survey to determine the properties of Kepler stars using a uniform set of high-resolution, high signal-to-noise ratio spectra. The HIRES spectra are available to the community for independent analyses.

Original language	English (US)
Article number	107
Journal	Astronomical Journal
Volume	154
Issue number	3
DOIs	https://doi.org/10.3847/1538-3881/aa80de
State	Published - Sep 2017

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

binaries: spectroscopic
catalogs
stars: abundances
stars: fundamental parameters

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10.3847/1538-3881/aa80de

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Petigura, E. A., Howard, A. W., Marcy, G. W., Johnson, J. A., Isaacson, H., Cargile, P. A., Hebb, L., Fulton, B. J., Weiss, L. M., Morton, T. D., Winn, J. N., Rogers, L. A., Sinukoff, E., Hirsch, L. A., & Crossfield, I. J. M. (2017). The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets. Astronomical Journal, 154(3), Article 107. https://doi.org/10.3847/1538-3881/aa80de

@article{b242cb45ddcb45e79b6fc94d3fa972de,

title = "The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets",

abstract = "The California-Kepler Survey (CKS) is an observational program developed to improve our knowledge of the properties of stars found to host transiting planets by NASA's Kepler Mission. The improvement stems from new high-resolution optical spectra obtained using HIRES at the W. M. Keck Observatory. The CKS stellar sample comprises 1305 stars classified as Kepler objects of interest, hosting a total of 2075 transiting planets. The primary sample is magnitude-limited (Kp < 14.2) and contains 960 stars with 1385 planets. The sample was extended to include some fainter stars that host multiple planets, ultra-short period planets, or habitable zone planets. The spectroscopic parameters were determined with two different codes, one based on template matching and the other on direct spectral synthesis using radiative transfer. We demonstrate a precision of 60 K in Teff, 0.10 dex in log g, 0.04 dex in [Fe/H], and 1.0km s-1 in V sin i. In this paper, we describe the CKS project and present a uniform catalog of spectroscopic parameters. Subsequent papers in this series present catalogs of derived stellar properties such as mass, radius, and age; revised planet properties; and statistical explorations of the ensemble. CKS is the largest survey to determine the properties of Kepler stars using a uniform set of high-resolution, high signal-to-noise ratio spectra. The HIRES spectra are available to the community for independent analyses.",

keywords = "binaries: spectroscopic, catalogs, stars: abundances, stars: fundamental parameters",

author = "Petigura, {Erik A.} and Howard, {Andrew W.} and Marcy, {Geoffrey W.} and Johnson, {John Asher} and Howard Isaacson and Cargile, {Phillip A.} and Leslie Hebb and Fulton, {Benjamin J.} and Weiss, {Lauren M.} and Morton, {Timothy D.} and Winn, {Joshua N.} and Rogers, {Leslie A.} and Evan Sinukoff and Hirsch, {Lea A.} and Crossfield, {Ian J.M.}",

year = "2017",

month = sep,

doi = "10.3847/1538-3881/aa80de",

language = "English (US)",

volume = "154",

journal = "Astronomical Journal",

issn = "0004-6256",

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Petigura, EA, Howard, AW, Marcy, GW, Johnson, JA, Isaacson, H, Cargile, PA, Hebb, L, Fulton, BJ, Weiss, LM, Morton, TD, Winn, JN, Rogers, LA, Sinukoff, E, Hirsch, LA & Crossfield, IJM 2017, 'The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets', Astronomical Journal, vol. 154, no. 3, 107. https://doi.org/10.3847/1538-3881/aa80de

TY - JOUR

T1 - The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

AU - Petigura, Erik A.

AU - Howard, Andrew W.

AU - Marcy, Geoffrey W.

AU - Johnson, John Asher

AU - Isaacson, Howard

AU - Cargile, Phillip A.

AU - Hebb, Leslie

AU - Fulton, Benjamin J.

AU - Weiss, Lauren M.

AU - Morton, Timothy D.

AU - Winn, Joshua N.

AU - Rogers, Leslie A.

AU - Sinukoff, Evan

AU - Hirsch, Lea A.

AU - Crossfield, Ian J.M.

PY - 2017/9

Y1 - 2017/9

N2 - The California-Kepler Survey (CKS) is an observational program developed to improve our knowledge of the properties of stars found to host transiting planets by NASA's Kepler Mission. The improvement stems from new high-resolution optical spectra obtained using HIRES at the W. M. Keck Observatory. The CKS stellar sample comprises 1305 stars classified as Kepler objects of interest, hosting a total of 2075 transiting planets. The primary sample is magnitude-limited (Kp < 14.2) and contains 960 stars with 1385 planets. The sample was extended to include some fainter stars that host multiple planets, ultra-short period planets, or habitable zone planets. The spectroscopic parameters were determined with two different codes, one based on template matching and the other on direct spectral synthesis using radiative transfer. We demonstrate a precision of 60 K in Teff, 0.10 dex in log g, 0.04 dex in [Fe/H], and 1.0km s-1 in V sin i. In this paper, we describe the CKS project and present a uniform catalog of spectroscopic parameters. Subsequent papers in this series present catalogs of derived stellar properties such as mass, radius, and age; revised planet properties; and statistical explorations of the ensemble. CKS is the largest survey to determine the properties of Kepler stars using a uniform set of high-resolution, high signal-to-noise ratio spectra. The HIRES spectra are available to the community for independent analyses.

AB - The California-Kepler Survey (CKS) is an observational program developed to improve our knowledge of the properties of stars found to host transiting planets by NASA's Kepler Mission. The improvement stems from new high-resolution optical spectra obtained using HIRES at the W. M. Keck Observatory. The CKS stellar sample comprises 1305 stars classified as Kepler objects of interest, hosting a total of 2075 transiting planets. The primary sample is magnitude-limited (Kp < 14.2) and contains 960 stars with 1385 planets. The sample was extended to include some fainter stars that host multiple planets, ultra-short period planets, or habitable zone planets. The spectroscopic parameters were determined with two different codes, one based on template matching and the other on direct spectral synthesis using radiative transfer. We demonstrate a precision of 60 K in Teff, 0.10 dex in log g, 0.04 dex in [Fe/H], and 1.0km s-1 in V sin i. In this paper, we describe the CKS project and present a uniform catalog of spectroscopic parameters. Subsequent papers in this series present catalogs of derived stellar properties such as mass, radius, and age; revised planet properties; and statistical explorations of the ensemble. CKS is the largest survey to determine the properties of Kepler stars using a uniform set of high-resolution, high signal-to-noise ratio spectra. The HIRES spectra are available to the community for independent analyses.

KW - binaries: spectroscopic

KW - catalogs

KW - stars: abundances

KW - stars: fundamental parameters

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DO - 10.3847/1538-3881/aa80de

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SN - 0004-6256

VL - 154

JO - Astronomical Journal

JF - Astronomical Journal

IS - 3

M1 - 107

ER -

The California-Kepler Survey. I. High-resolution Spectroscopy of 1305 Stars Hosting Kepler Transiting Planets

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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