J/A+A/612/L2 Compilation of stellar rotation data (Kovacs, 2018)
Signature of non-isotropic distribution of stellar rotation inclination angles
in the Praesepe cluster.
Kovacs G.
<Astron. Astrophys. 612, L2 (2018)>
=2018A&A...612L...2K 2018A&A...612L...2K (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Clusters, open
Keywords: stars: rotation - open clusters and associations: individual: M 44
Abstract:
The distribution of the stellar rotation axes of 113 main sequence
stars in the open cluster Praesepe are examined by using current
photometric rotation periods, spectroscopic rotation velocities, and
estimated stellar radii. Three different samples of stellar rotation
data on spotted stars from the Galactic field and two independent
samples of planetary hosts are used as control samples to support the
consistency of the analysis. Considering the high completeness of the
Praesepe sample and the behavior of the control samples, we find that
the main sequence F-K stars in this cluster are susceptible to
rotational axis alignment. Using a cone model, the most likely
inclination angle is 76±14° with a half opening angle of
47±24°. Non-isotropic distribution of the inclination angles is
preferred over the isotropic distribution, except if the rotation
velocities used in this work are systematically overestimated. We
found no indication of this being the case on the basis of the
currently available data.
Description:
The three datasets included in table1-1.dat, table1-2.dat and table1-6.dat
respectively, correspond to the type of stars listed in Table 1 in
lines 1 [Praesepe], 2 [HJ_host] and 6 [Field(C)]. These data result
from the compilation of rotational and other stellar data from the
literature.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1-1.dat 147 120 Stellar rotation data in Praesepe
table1-2.dat 95 39 Stellar rotation data on hot Jupiter host stars
table1-6.dat 89 55 Stellar rotation data in the Kepler field
refs.dat 70 50 References
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
J/MNRAS/456/2260 : K2 Variability Catalogue II (Armstrong+, 2016)
Byte-by-byte Description of file: table1-1.dat
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Bytes Format Units Label Explanations
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1- 9 I9 --- K2ID ?=0 Kepler K2 EPIC identifier (1)
12- 17 A6 --- M44ID Other identifier
21- 35 A15 --- HATID HATNet identifier (HAT-NNN-NNNNNNN)
38- 47 F10.6 deg RAdeg Right Ascension (J2000.0) (2)
51- 59 F9.6 deg DEdeg Declination (J2000.0) (2)
62- 65 F4.1 km/s Vsini Equatorial rotational velocity times sin(i) (2)
68- 71 F4.1 km/s e_Vsini Error of Vsini (2)
74- 80 F7.4 d Prot Rotation period in
83- 88 F6.3 mag Vmag Johnson V magnitude (3)
91- 96 F6.3 mag Kmag 2MASS K magnitude (3)
100-104 F5.3 mag J-K 2MASS J-K index (3)
108-112 F5.3 Rsun R Stellar radius (4)
116-120 F5.3 Lsun L Stellar luminosity (4)
124-127 I4 K Teff Stellar effective temperature (5)
133-135 A3 --- n_Prot Source of Prot (6)
140-147 A8 --- Notes Variable type (7)
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Note (1): K2_ID: Missing items in K2 are denoted by 000000000.
Note (2): From Mermilliod et al., 2009, Cat. J/A+A/498/949.
Note (3): From URAT1 (Zacharias et al., 2015, Cat. I/329) or
UCAC4 (Zacharias et al., 2012, Cat. I/322) of CDS.
Note (4): by using IRFM-calibrated Teff and PARSEC evolution models
Note (5): IRFM-calibrated Teff, using V, J, K magnitudes
Note (6): Source of Prot as follows:
KEP = K2, Rebull et al., 2017, Cat. J/ApJ/839/92
HAT = HATNet, Kovacs et al., 2014, Cat. J/MNRAS/442/2081
Note (7): Notes as follows:
SB* = Spectroscopic binary and rotational variable
(see Mermilliod et al., 2009, Cat. J/A+A/498/949)
x = Rotational variable
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Byte-by-byte Description of file: table1-2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name System name
13- 17 F5.2 d Porb Orbital period
20- 24 F5.2 km/s vsini Equatorial rotational velocity times sin(i)
29- 32 F4.2 km/s e_vsini Error of vsini (1)
36- 39 F4.2 Rsun R* Stellar radius (2)
42- 46 F5.0 K Teff Stellar effective temperature
49- 53 F5.3 [cm/s2] logg log_10 of the surface acceleration (2)
56- 60 F5.2 --- [Fe/H] Logarithmic iron abundance relative to the Sun
64- 68 F5.2 d Prot Rotational period
71- 75 F5.2 Gyr age Stellar age from evolutionary models
80- 83 F4.2 Gyr e_age Error of the stellar age
86- 87 A2 --- S1 Source of the stellar parameters and vsini,
in refs.dat file
89- 90 A2 --- S2 Source of the stellar parameters and vsini,
in refs.dat file
92- 93 A2 --- S3 Source of the stellar parameters and vsini,
in refs.dat file
95 A1 --- Notes [abcd] Individual notes (3)
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Note (1): vsini errors are set to 0.99 if those are not given in the source, or
set in this work for any other reasons (e.g., overall vsini, from different
sources are used).
Note (2): logg and R* are calculated from the stellar mass and density as given
in the Tables 1 and 3 of Maxted et al., 2015A&A...577A..90M 2015A&A...577A..90M, or taken from the
references below if the data originate not from the publication cited.
Note (3): Individual notes as follows:
a = for 55 Cnc, vsini is the average of the values given in Lopez-Morales
et al., 2014ApJ...792L..31L 2014ApJ...792L..31L and Valenti & Fischer, 2005ApJS..159..141V 2005ApJS..159..141V
b = for Qatar-2 we use the rotational period given in Dai et al.,
2017AJ....153...40D 2017AJ....153...40D instead of Maxted et al., 2015A&A...577A..90M 2015A&A...577A..90M
c = for WASP-6, vsini is the average of those given in Gillon et al.,
2009A&A...501..785G 2009A&A...501..785G and Doyle et al., 2013MNRAS.428.3164D 2013MNRAS.428.3164D
d = age for WASP-52 is read-off from Fig. 7 of Hebrard et al.,
2013A&A...549A.134H 2013A&A...549A.134H
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Byte-by-byte Description of file: table1-6.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler Input Catalog number
11- 20 F10.6 deg RAdeg Right Ascension (J2000.0), from KIC
23- 32 F10.6 deg DEdeg Declination (J2000.0), from KIC
35- 40 F6.3 d Prot Rotational period
43- 47 F5.3 Rsun R* Stellar radius
50- 54 F5.3 [cm/s2] logg log_10 of the surface acceleration
58- 61 I4 K Teff Stellar effective temperature
63- 68 F6.1 km/s vsini Equatorial rotational velocity times sin(i)
73- 76 F4.1 km/s e_vsini Error of vsini
82- 83 A2 --- S1 Source of the stellar parameters and vsini,
in refs.dat file
85- 86 A2 --- S2 Source of the stellar parameters and vsini,
in refs.dat file
88- 89 A2 --- S3 Source of the stellar parameters and vsini,
in refs.dat file
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 A2 -- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 46 A23 --- Aut Author's name
48- 70 A23 --- Com Comments
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Acknowledgements:
Geza Kovacs, kovageza(at)gmail.com
(End) Patricia Vannier [CDS] 16-Mar-2018