J/ApJ/961/85 The California-Kepler Survey. XI. Activity (Isaacson+, 2024)
The California-Kepler Survey.
XI. A survey of chromospheric activity through the lens of precise stellar
properties.
Isaacson H., Kane S.R., Carter B., Howard A.W., Weiss L., Petigura E.A.,
Fulton B.
<Astrophys. J., 961, 85 (2024)>
=2024ApJ...961...85I 2024ApJ...961...85I
ADC_Keywords: Stars, double and multiple; Exoplanets; Photometry;
Spectra, optical
Keywords: Stellar activity ; Exoplanet astronomy ; Stellar chromospheres
Abstract:
Surveys of exoplanet host stars are valuable tools for assessing
population level trends in exoplanets, and their outputs can include
stellar ages, activity, and rotation periods. We extracted
chromospheric activity measurements from the California-Kepler Survey
Gaia survey spectra in order to probe connections between stellar
activity and fundamental stellar properties. Building on the
California Kepler Survey's legacy of 1189 planet host star stellar
properties including temperature, surface gravity metallicity, and
isochronal age, we add measurements of the CaII H and K lines as a
proxy for chromospheric activity for 879 planet hosting stars. We used
these chromospheric activity measurements to derive stellar rotation
periods. We find a discrepancy between photometrically derived and
activity-derived rotation periods for stars on the Rossby Ridge. These
results support the theory of weakened magnetic braking. We find no
evidence for metallicity-dependent activity relations, within the
metallicity range of -0.2 to +0.3 dex. With our single epoch spectra
we identify stars that are potentially in Maunder minimum-like state
using a combination of log(RHK') and position below the main
sequence. We do not yet have the multiyear time series needed to
verify stars in Maunder minimum-like states. These results can help
inform future theoretical studies that explore the relationship
between stellar activity, stellar rotation, and magnetic dynamos.
Description:
We choose to begin with the sample of 1189 planet stars hosting 1896
total planets from Fulton & Petigura (Paper VII; 2018, J/AJ/155/89)
and make additional quality cuts for our analysis. See Section 2.2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 62 1189 Activity metrics and derived values
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See also:
III/159 : Ca II H and K Measurements Made at MWO (Duncan+ 1991)
J/AJ/111/439 : Chromospheric emission in late-type stars. (Henry+ 1996)
J/ApJS/152/261 : Chromospheric Ca II emission in nearby stars (Wright+, 2004)
J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)
J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)
J/ApJ/728/117 : Kepler planetary candidates. I. (Borucki+, 2011)
J/ApJ/736/19 : Kepler planetary candidates. II. (Borucki+, 2011)
J/PASP/124/1279 : Q3 Kepler's combined photometry (Christiansen+, 2012)
J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)
J/MNRAS/436/1883 : Properties of KOI host stars (Walkowicz+, 2013)
J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)
J/ApJ/784/45 : Kepler's multiple planet candidates. III. (Rowe+, 2014)
J/ApJ/787/47 : 106 Kepler ultra-short-period planets (Sanchis-Ojeda+, 2014)
J/ApJ/801/3 : Rotation periods for Q3-Q14 KOIs (Mazeh+, 2015)
J/ApJ/805/175 : Keck and APF radial velocities of HD7924 (Fulton+, 2015)
J/AJ/154/107 : California-Kepler Survey (CKS). I. (Petigura+, 2017)
J/AJ/154/108 : California-Kepler Survey (CKS). II. (Johnson+, 2017)
J/AJ/154/109 : California-Kepler Survey (CKS). III. Radii (Fulton+, 2017)
J/MNRAS/474/2094 : Inferring probabilistic stellar rot. periods (Angus+, 2018)
J/AJ/155/48 : California-Kepler Survey (CKS). V. Masses (Weiss+, 2018)
J/AJ/155/89 : California-Kepler Survey (CKS). IV. (Petigura+, 2018)
J/AJ/156/264 : California-Kepler Survey. VII. Radius gap (Fulton+, 2018)
J/ApJS/235/38 : Kepler planet cand. VIII. DR25 reliability (Thompson+, 2018)
J/AJ/158/109 : Occurrence rates of planets orbiting FGK stars (Hsu+, 2019)
J/AJ/159/280 : Gaia-Kepler stellar properties cat. I. KIC (Berger+, 2020)
J/AJ/160/108 : Gaia-Kepler stellar properties cat. II. (Berger+, 2020)
J/ApJ/904/140 : Rup147 members & rot. data for 5 other cl. (Curtis+, 2020)
J/ApJS/247/9 : FGK stars magnetic activity (Zhang+, 2020)
J/AJ/161/265 : Compared rot. periods for 1189 CKS host stars (David+, 2021)
J/A+A/646/A77 : Activity from AMBRE-HARPS (Gomes da Silva+, 2021)
J/other/NatAs/5.707 : Dwarf stars asteroseismic rotation rates (Hall+, 2021)
J/AJ/162/61 : RVel follow up of Barnard's star with HPF (Lubin+, 2021)
J/ApJS/255/17 : Kepler stars surface rot. & activity. II. (Santos+, 2021)
J/ApJ/930/7 : Rot. distrib. from TESS-APOGEE-Kepler-Gaia (Avallone+, 2022)
J/AJ/163/183 : S-value for Sun-like stars with HIRES and HKP (Baum+, 2022)
J/ApJ/936/L23 : T4 APT photometry of HD 166620 (Luhn+, 2022)
J/AJ/163/179 : The California-Kepler Survey. X. (Petigura+, 2022)
J/ApJS/261/26 : Exoplanet host stars from LAMOST-TESS-Kepler-K2 (Su+, 2022)
J/AJ/166/62 : New HIRES radial velocity data for V1298 Tau (Blunt+, 2023)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- KOI Name of the star from Fulton+ 2018, J/AJ/156/264
8- 12 F5.3 --- Svalue [0.07/0.9] HIRES S-value measurement
(see Section 2.1)
14- 19 F6.3 --- logRHK [-6.4/-4.2]? log(R'HK) value
21- 24 F4.1 --- S/N [1.4/67.6] Signal-to-noise ratio per pixel
26- 31 F6.3 d Prot [0/72.62] Rotation period, activity
33- 39 F7.4 [yr] logAge [6.37/11.3] Log of age
41- 43 F3.1 --- Qual [0/1] Quality (1 = ok)
45- 54 A10 --- f_Qual Flag on Qual
56- 60 F5.2 d Protph [1.5/45.7]?=0 Photometric rotation period
62 I1 --- q_Protph [0/3] Quality flag on Prot (1)
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Note (1): Quality of rotation periods as follows:
0 = no periodicity (247 occurrences)
1 = ambiguous period (402 occurrences)
2 = reliable period (273 occurrences)
3 = highly reliable period (267 occurrences)
See Section 2.3.2.
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History:
From electronic version of the journal
References:
Petigura et al. Paper I. 2017AJ....154..107P 2017AJ....154..107P Cat. J/AJ/154/107
Johnson et al. Paper II. 2017AJ....154..108J 2017AJ....154..108J Cat. J/AJ/154/108
Fulton et al. Paper III. 2017AJ....154..109F 2017AJ....154..109F Cat. J/AJ/154/109
Petigura et al. Paper IV. 2018AJ....155...89P 2018AJ....155...89P Cat. J/AJ/155/89
Weiss et al. Paper V. 2018AJ....155...48W 2018AJ....155...48W Cat. J/AJ/155/48
Weiss et al. Paper VI. 2018AJ....156..254W 2018AJ....156..254W Cat. J/AJ/156/254
Fulton et al. Paper VII. 2018AJ....156..264F 2018AJ....156..264F Cat. J/AJ/156/264
Mills et al. Paper VIII. 2019AJ....157..198M 2019AJ....157..198M
Dai et al. Paper IX. 2020AJ....159..247D 2020AJ....159..247D
Petigura et al. Paper X. 2022AJ....163..179P 2022AJ....163..179P Cat. J/AJ/163/179
Isaacson et al. Paper XI. 2024ApJ...961...85I 2024ApJ...961...85I This catalog
(End) Emmanuelle Perret [CDS] 08-Apr-2026