J/AJ/166/14 Kinematic for ∼5200 alpha Persei candidate members (Boyle+, 2023)
Stellar Rotation and Structure of the α Persei Complex: When Does
Gyrochronology Start to Work?
Boyle A.W., Bouma L.G.
<Astron. J., 166, 14 (2023)>
=2023AJ....166...14B 2023AJ....166...14B
ADC_Keywords: Clusters, open; Optical; Radial velocities; Proper motions
Keywords: Stellar rotation ; Stellar ages ; Open star clusters ;
Clustering
Abstract:
On the pre-main sequence, the rotation rates of Sun-like stars are
dictated by the interplay between the protostellar disk and the star's
contraction. At ages exceeding 100Myr, magnetic spindown erases the
initial stellar spin rate and enables rotation-based age dating
(gyrochronology). The exact time at which the transition between these
two regimes occurs depends on stellar mass, and has been challenging
to empirically resolve due to a lack of viable calibration clusters.
The αPersei open cluster (t∼80Myr, d∼170pc) may provide the
needed calibrator, but recent analyses of the Gaia data have provided
wildly varying views of its age and spatial extent. As such, we
analyze a combination of TESS, Gaia, and LAMOST data to calibrate
gyrochronology at the age of αPer and to uncover the cluster's
true morphology. By assembling a list of rotationally confirmed
αPer members, we provide strong evidence that αPer is part
of a larger complex of similarly aged stars. Through kinematic
back-integration, we show that the most diffuse components of
αPer were five times closer together 50Myr ago. Finally, we use
our stellar rotation periods to derive a relative gyrochronology age
for αPer of 67%±12% the age of the Pleiades, which yields
86±16Myr given current knowledge. We show that by this age, stars
more massive than ∼0.8M☉ have converged to form a well-defined
slow sequence.
Description:
TESS rotation periods have been combined with Gaia photometry and
astrometry to analyze the αPersei open cluster.
Objects:
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RA (2000) DE Designation(s)
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03 24 19.37 +49 51 40.2 alpha Persei = NAME Alpha Per Cluster
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 350 5226 Rotation periods and kinematic information for
5226 candidate alpha Per members
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See also:
B/ocl : Optically visible open clusters and Candidates (Dias+ 2002-2015)
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
J/A+A/331/81 : Hyades membership (Perryman+ 1998)
J/AJ/125/1397 : Kinematics, age and abundances of open clusters (Chen+, 2003)
J/A+A/417/557 : Rotation & variability of PMS Stars in NGC 2264 (Lamm, 2004)
J/A+A/463/789 : Blue stragglers in open clusters (Ahumada+, 2007)
J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)
J/A+A/520/A15 : RACE-OC project; YSOs within 100pc (Messina+, 2010)
J/ApJ/757/112 : Stellar diameters. II. K and M-stars (Boyajian+, 2012)
J/A+A/558/A53 : Milky Way global survey star clusters. II. (Kharchenko+, 2013)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/ApJ/804/146 : Atmospheric parameters for nearby B-F stars (David+, 2015)
J/ApJ/804/64 : Empirical and model parameters of 183 M dwarfs (Mann+, 2015)
J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)
J/A+A/585/A150 : On the metallicity of open clusters. III. (Netopil+, 2016)
J/AJ/152/113 : Pleiades members with K2 light curves. I. Per (Rebull+, 2016)
J/AJ/152/115 : Pleiades members with K2 light curves. III. (Stauffer+, 2016)
J/ApJ/842/83 : Praesepe members rotational periods K2 LCs (Douglas+, 2017)
J/ApJ/838/150 : The Taurus-Auriga ecosystem. I. (Kraus+, 2017)
J/A+A/599/A49 : Pre-main sequence stars evolutionary models (Kunitomo+, 2017)
J/ApJ/862/33 : Improved & expanded membership for NGC752 (Agueros+, 2018)
J/MNRAS/474/2094 : Inferring probabilistic star rotation periods (Angus+, 2018)
J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)
J/ApJ/862/138 : BANYAN. XIII. Nearby young assoc. with Gaia DR2 (Gagne+, 2018)
J/A+A/616/A10 : 46 open clusters GaiaDR2 HRdiagrams (Gaia Collaboration, 2018)
J/A+A/619/A106 : 3D shape of Orion A from Gaia DR2 (Grossschedl+, 2018)
J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)
J/A+A/612/A99 : Gaia-ESO Survey in 7 open star cluster fields (Randich+, 2018)
J/AJ/155/196 : Analysis of K2 LCs members of USco & ρ Oph (Rebull+, 2018)
J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)
J/ApJ/879/49 : Rotation periods 171 Gaia members of NGC 6811 (Curtis+, 2019)
J/AJ/158/77 : Candidates & members of Pisces-Eridanus stream (Curtis+, 2019)
J/ApJ/879/100 : K2 rotation periods Hyades & Praesepe members (Douglas+, 2019)
J/AJ/158/122 : Localstructure & star formation history of MW (Kounkel+, 2019)
J/A+A/628/A66 : alpha Persei, Pleiades and Praesepe clusters (Lodieu+, 2019)
J/ApJ/904/140 : Ruprecht 147 members & rot. data for 5 cl. (Curtis+, 2020)
J/A+A/633/A38 : EW of 10 solar-type stars of Praesepe (D'Orazi+, 2020)
J/A+A/641/A51 : NGC 2516 membership list (Fritzewski+, 2020)
J/ApJ/903/96 : The µTau Association (MUTA) (Gagne+, 2020)
J/MNRAS/492/1008 : NGTS clusters survey I. Rotation in Blanco 1 (Gillen+, 2020)
J/A+A/644/A16 : NGC 6774 cool stars rotation periods (Gruner+, 2020)
J/ApJ/903/99 : Stellar spins in the open cluster NGC 2516 (Healy+, 2020)
J/AJ/159/105 : 2 new stellar associations in vicinity of the Sun (Liu+, 2020)
J/A+A/635/A43 : Star rotation periods from K2 Campaigns 0-18 (Reinhold+, 2020)
J/AJ/162/197 : Photometry, rotation & Li open cluster NCG2516 (Bouma+, 2021)
J/A+A/652/A60 : Rotation periods for NGC 3532 (Fritzewski+, 2021)
J/A+A/649/A6 : Gaia Catalogue of Nearby Stars (Gaia collaboration, 2021)
J/MNRAS/508/3877 : Catalogue of white dwarfs in Gaia EDR3 (Gentile+, 2021)
J/ApJS/257/46 : Membership & rotational for clusters (Godoy-Rivera+, 2021)
J/A+A/646/A104 : Improving the open cluster census. I. (Hunt+, 2021)
J/ApJ/923/129 : Membership for open clusters with Gaia DR2 (Jaehnig+, 2021)
J/A+A/647/A137 : 800pc tital tail of Hyades (Jerabkova+, 2021)
J/ApJ/917/23 : SPYGLASS. I. Mapping young stellar structures (Kerr+, 2021)
J/AJ/162/110 : Gaia EDR3 census of Taurus-Auriga complex (Krolikowski+, 2021)
J/A+A/645/A84 : Coronae of nearby star clusters (Meingast+, 2021)
J/ApJ/921/167 : Rotators in Praesepe with K2 LCs & Gaia EDR3 (Rampalli+, 2021)
J/AJ/163/275 : Theia 456; stellar stream in Milky Way disk (Andrews+, 2022)
J/AJ/163/121 : Radial velocity and light curve of Kepler 1627A (Bouma+, 2022)
J/A+A/661/A118 : 628 open clusters found with OCfinder (Castro-Ginard+, 2022)
J/A+A/664/A70 : Li depletion boundary in stellar assoc. (Galindo-Guil+, 2022)
J/AJ/164/137 : Untangling Galaxy IV. ∼100000 stars with TESS (Kounkel+, 2022)
J/A+A/657/L3 : Rotation periods of Group X candidate members (Messina+, 2022)
J/MNRAS/513/374 : alpha Per delta Scuti significant freq. (Pamos Ortega+, 2022)
J/A+A/673/A119 : NGC 6709 cool stars rotation periods (Cole-Kodikara+, 2023)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 19 I19 --- DR2 Gaia DR2 source identifier
21- 39 I19 --- DR3 Gaia DR3 source identifier
41- 41 I1 --- NSec [0/4] Number of TESS sectors with CDIPS
light curves
43- 48 F6.3 d Per [0.1/14]? Adopted rotation period
50- 57 E8.2 d e_Per [4e-07/6]? Uncertainty on rotation period
59- 64 F6.3 d PDMPer [0.1/14]? Period determined using Phase
Dispersion Minimization
66- 71 F6.3 d LSPPer [0.1/14]? Period determined using
Generalized Lomb Scargle (days)
73- 79 F7.3 --- PDMPo [-35.4/0.99]? Phase Dispersion Minimization
periodogram value for best period
81- 85 F5.3 --- LSPPo [0.006/1]? Generalized Lomb Scargle
periodogram value for best period
87- 92 F6.1 K Teff [3065/6460]? Effective temperature from
Curtis et al. 2020
94-103 F10.2 ppm p2pRMS [212/1563539]? Peak-to-peak root-mean-square
value
105-114 F10.2 ppm a90-10 [1102/3095753]? Light curve amplitude
116-121 F6.2 --- SNR [2.04/953]? Signal-to-noise ratio
123-129 F7.3 deg RAdeg [0/360] Gaia DR3 right ascension (J2016)
131-136 F6.3 deg DEdeg [1/89] Gaia DR3 declination (J2016)
138-144 F7.3 mas/yr pmRA [-32.8/175.8]? Gaia DR3 proper-motion
*cos(DE)
146-153 F8.3 mas/yr pmDE [-162/24.4]? Gaia DR3 proper-motion
155-160 F6.3 mas plx [-3.66/15.9]? Gaia DR3 parallax
162-168 F7.2 km/s RVel [-231/771]? Gaia DR3 radial velocity
170-175 F6.3 mag BPmag [3.95/22.5]? Apparent Gaia DR3 Blue passband
magnitude
177-182 F6.3 mag RPmag [3.87/20.5]? Apparent Gaia DR3 Red passband
magnitude
184-189 F6.3 mag Gmag [3.94/21.1]? Apparent Gaia DR3 G passband
magnitude
191-196 F6.3 mag BPMAG [-2.28/17]? Absolute, extinction-corrected
Gaia DR3 Blue passband magnitude
198-203 F6.3 mag RPMAG [-2.22/14.5]? Absolute, extinction-corrected
Gaia DR3 Red passband magnitude
205-210 F6.3 mag GMAG [-2.23/15.7]? Absolute, extinction-corrected
Gaia DR3 G passband magnitude
212-219 F8.2 pc X [-3992/79]? Galactocentric X position
221-227 F7.2 pc Y [-47.5/2286]? Galactocentric Y position
229-235 F7.2 pc Z [-821/101]? Galactocentric Z position
237-243 F7.2 km/s U [-660/173]? Galactocentric U velocity
245-251 F7.2 km/s V [-152/320]? Galactocentric V velocity
253-259 F7.2 km/s W [-259/49.2]? Galactocentric W velocity
261-268 F8.3 km/s vl [-854/209]? Tangential l velocity;
with cos(b) correction applied
270-276 F7.3 km/s vb [-74.9/630]? Tangential b velocity
278-282 A5 --- Meingast? Star in Meingast et al. 2021?
284-288 A5 --- Kerr? Star in Kerr et al. 2021?
290-294 A5 --- kc Star in Kounkel & Covey 2019?
296-300 A5 --- cg Star in Cantat-Gaudin et al. 2018?
302-306 A5 --- Jaehnig? Star in Jaehnig et al. 2021?
308-312 A5 --- Lodieu? Star in Lodiue et al. 2019?
314-318 A5 --- Moranta? Star in Moranta et al. 2022?
320-324 A5 --- Heyl? Star in Heyl et al. 2021?
326-326 A1 --- Manual Results of manual check on phase-folded
light curve
328-332 A5 --- qper Flag indicating if star has a high quality
rotation period detection
334-338 A5 --- bper Flag indicating if star is likely a single
star
340-344 A5 --- Gyro Star appears in sample of stars used to
calibrate gyro
346-350 A5 --- NBHR Flag indicating if star has a bright
neighbor within a 21 arcsecond radius
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 02-Feb-2024