J/AJ/167/159 Gyrochronology ages for ∼100000 stars & host stars (Lu+, 2024)
In This Day and Age: An Empirical Gyrochronology Relation for Partially and
Fully Convective Single Field Stars.
Lu Y., Angus R., Foreman-Mackey D., Hattori S.
<Astron. J., 167, 159 (2024)>
=2024AJ....167..159L 2024AJ....167..159L
ADC_Keywords: Stars, ages; Colors; Effective temperatures; Optical
Keywords: Stellar ages ; Stellar rotation ; Catalogs ;
Gaussian Processes regression ; Main sequence stars
Abstract:
Gyrochronology, the field of age dating stars using mainly their
rotation periods and masses, is ideal for inferring the ages of
individual main-sequence stars. However, due to the lack of physical
understanding of the complex magnetic fields in stars, gyrochronology
relies heavily on empirical calibrations that require consistent and
reliable stellar age measurements across a wide range of periods and
masses. In this paper, we obtain a sample of consistent ages using the
gyro-kinematic age-dating method, a technique to calculate the
kinematics ages of stars. Using a Gaussian process model conditioned
on ages from this sample (∼1-14Gyr) and known clusters (0.67-3.8Gyr),
we calibrate the first empirical gyrochronology relation that is
capable of inferring ages for single, main-sequence stars between 0.67
and 14Gyr. Cross-validating and testing results suggest our model can
infer cluster and asteroseismic ages with an average uncertainty of
just over 1Gyr, and the inferred ages for wide binaries agree within
0.83Gyr. With this model, we obtain gyrochronology ages for ∼100000
stars within 1.5kpc of the Sun with period measurements from Kepler
and Zwicky Transient Facility and 384 unique planet host stars. A
simple code is provided to infer gyrochronology ages of stars with
temperature and period measurements.
Description:
By combining period measurements from Kepler and ZTF, using the
gyro-kinematic age-dating method, we constructed a large sample of
reliable kinematic ages expanding the Prot-Teff space that is most
suitable for gyrochronology (4d<Prot<200d; 3000K<Teff<7000K).
ZTF is a ground-based optical time-domain survey that uses the Palomar
48 inch Schmidt telescope with a wide-field camera that has a 47deg2
field of view.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 81 100717 Gyrochronology ages for ∼100000 stars derived from
this work
table3.dat 104 384 Gyrochronology ages for 353 exoplanet host stars
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)
I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)
J/MNRAS/432/1203 : Rotation periods of M-dwarf stars (McQuillan+, 2013)
J/ApJ/776/67 : Rotational tracks (van Saders+, 2013)
J/A+A/572/A34 : Pulsating solar-like stars in Kepler (Garcia+, 2014)
J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)
J/ApJ/834/85 : Hα emission in nearby M dwarfs (Newton+, 2017)
J/ApJ/835/173 : Kepler asteroseismic LEGACY sample. II. (Silva Aguirre+, 2017)
J/ApJ/862/33 : Improved & expanded member catalog for NGC752 (Agueros+, 2018)
J/MNRAS/474/2094 : Inferring proba stellar rotation periods (Angus+, 2018)
J/MNRAS/480/4884 : Gaia wide binaries (El-Badry+, 2018)
J/A+A/631/A77 : Low-mass stellar models and isochrones (Amard+, 2019)
J/ApJ/879/49 : Rotation periods 171 Gaia members of NGC 6811 (Curtis+, 2019)
J/ApJ/879/100 : K2 rotation periods Hyades & Praesepe members (Douglas+, 2019)
J/ApJS/244/21 : Surface rotation & activity of Kepler stars. I. (Santos+, 2019)
J/ApJ/888/43 : APOGEE-Kepler Cool Dwarf star ages (Claytor+, 2020)
J/ApJ/904/140 : Ruprecht 147 members & rot data for 5 other cl. (Curtis+, 2020)
J/other/NatAs/5.707 : Dwarf stars asteroseismic rotation rates (Hall+, 2021)
J/AJ/161/189 : Gyro-kinematic ages for ∼30000 Kepler stars (Lu+, 2021)
J/ApJS/255/17 : Surface rotation & activity Kepler stars. II. (Santos+, 2021)
J/AJ/164/25 : Velocity data 148590 stars in the Kepler field (Angus+, 2022)
J/AJ/164/251 : ZTF measured rotational period 40553 M- or G-dwarfs (Lu+, 2022)
J/A+A/675/A180 : Rotation of wide binaries (Gruner+, 2023)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 19 I19 --- Gaia Gaia DR3 source ID (source_id)
21- 28 I8 --- KIC Kepler input catalog ID, if available
30- 35 F6.2 d Prot [0.54/186] Measured Period
37- 41 F5.3 mag BP-RP [0.52/3.77] De-redened Gaia DR3 BP-RP
43- 48 F6.3 mag GMAG [-6.19/13.4]? Absolute G-band magnitude, DR3
50- 55 F6.1 K Teff [2024/6761] Temperature derived from bprp0
57- 63 F7.4 Gyr Age [0/26] Gyrochronology age
65- 72 F8.5 Gyr E_Age [0.0008/15] Upper uncertainty in Age
74- 81 F8.5 Gyr e_Age [-8/-0.0007] Lower uncertainty in Age
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name Planet host name from the NASA Exoplanet Archive
(1)
17- 24 A8 --- --- [Gaia DR2]
26- 44 I19 --- Gaia ? Gaia DR2 source name from the NASA Exoplanet
Archive (1)
46- 48 A3 --- --- [TIC]
50- 58 I9 --- TIC TESS input catalog ID, if available from the
NASA Exoplanet Archive (1)
60- 65 F6.2 d Prot [4.22/169] Measured Period
67- 72 F6.3 mag GMAG [2.81/10.4]? Absolute G-band magnitude, DR3
74- 79 F6.1 K Teff [3024/6345] Temperature derived from BP-RP
81- 87 F7.4 Gyr Age [0.6/35] Gyrochronology age
89- 95 F7.5 Gyr E_Age [0.002/3] Upper uncertainty in Age
97-104 F8.5 Gyr e_Age [-3/-0.003] Lower uncertainty in Age
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Note (1): NASA Exoplanet Archive, "Planetary System Table"
as downloaded on 2023-09-26.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 21-May-2024