J/AJ/158/56 Stellar parameters of M and K dwarfs (Houdebine+, 2019)
The mass-activity relationships in M and K dwarfs.
I. Stellar parameters of our sample of M and K dwarfs.
Houdebine E.R., Mullan D.J., Doyle J.G., de La Vieuville G., Butler C.J.,
Paletou F.
<Astron. J., 158, 56 (2019)>
=2019AJ....158...56H 2019AJ....158...56H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, dwarfs ; Stars, M-type ; Stars, K-type ; Stars, late-type ;
Photometry, VRI ; Effective temperatures ; Spectral types ;
Parallaxes, trigonometric ; Stars, diameters ; Abundances
Keywords: stars: fundamental parameters - stars: late-type - stars: activity
Abstract:
Empirical correlations between stellar parameters such as rotation or
radius and magnetic activity diagnostics require estimates of the effective
temperatures and the stellar radii. The aim of this study is to propose
simple methods that can be applied to large samples of stars in order to
derive estimates of the stellar parameters. Good empirical correlations
between red/infrared colors (e.g., (R-I)C) and effective temperatures
have been well established for a long time. The more recent (R-I)C
color-Teff correlation using the data of Mann et al. (2015, J/ApJ/804/64,
hereafter M15) and Boyajian et al. (2012, J/ApJ/757/112, hereafter B12)
shows that this color can be applied as a temperature estimate for large
samples of stars. We find that the mean scatter in Teff relative
to the (R-I)C-Teff relationship of B12 and M15 data is only
±3σ=44.6 K for K dwarfs and ±3σ=39.4 K for M dwarfs. These
figures are small and show that the (R-I)C color can be used as a
first-guess effective temperature estimator for K and M dwarfs. We derive
effective temperatures for about 1910 K and M dwarfs using the calibration
of (R-I)C color-Teff from B12 and M15 data. We also compiled Teff
and metallicity measurements available in the literature using the VizieR
database. We determine Teff for 441 stars with previously unknown
effective temperatures. We also identified 21 new spectroscopic binaries
and one triple system from our high-resolution spectra.
Description:
Observations of (R-I)C (Cousin's photometric system) or (R-I)K (Kron
photometric system) for our samples of K and M dwarfs were taken from
several papers. We selected eight samples of K and M dwarfs according
to their (R-I)C colors. This represents a total sample of 2765 K and
M dwarfs. Most stars in this sample are nearby or large proper motion
stars. We also completed these samples of stars with a ninth sample of
stars: the M0-M1 sample, which includes some stars from the samples of
stars from B12 and M15 (see Table 1), as well as several stars initially
from the M2 sample, which were found to have higher temperatures (we
included in the M0-M1 sample stars down to the spectral type dM1.5).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 128 1882 Parameters of our sample(s)
table1.dat 39 213 Effective temperatures and (R-I)C colors
for K and M dwarfs
table3.dat 44 122 The list of effective temperatures from some
authors for our sample of dM4 stars
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See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/AJ/105/1962 : K and M stars photometry (Weis, 1993)
J/A+AS/117/227 : Dwarf effective temperatures (Alonso+ 1996)
J/A+A/411/559 : Effective temperature for 181 F-K dwarfs (Kovtyukh+, 2003)
J/A+A/427/933 : Precise temperature of F-K field dwarfs (Kovtyukh+, 2004)
J/A+A/478/507 : Distances and atmospheric parameters of MSU stars
(Morales+, 2008)
J/MNRAS/389/585 : Fundamental parameters of M dwarfs (Casagrande+, 2008)
J/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)
J/AJ/141/166 : HATNet variability survey of K and M dwarfs (Hartman+, 2011)
J/ApJ/743/48 : Stars with rotation periods and X-ray luminosities
(Wright+, 2011)
J/ApJ/748/93 : K-band spectra for 133 nearby M dwarfs (Rojas-Ayala+, 2012)
J/ApJ/757/112 : Stellar diameters. II. K and M-stars (Boyajian+, 2012)
J/MNRAS/421/3189 : CaII and Hα data for dK5/dM4 stars (Houdebine, 2012)
J/A+A/556/A15 : Effective temperature scale of M dwarfs (Rajpurohit+, 2013)
J/AJ/145/52 : Abundances of late K and M dwarfs in binary systems
(Mann+, 2013)
J/AJ/145/102 : Spectroscopy of bright M dwarfs in the northern sky
(Lepine+, 2013)
J/MNRAS/431/2063 : UV/X-ray activity of M dwarfs within 10pc (Stelzer+, 2013)
J/AJ/147/94 : Solar neighborhood. XXXII. L and M dwarfs (Dieterich+, 2014)
J/ApJ/789/102 : Properties of late M-dwarfs (Janson+, 2014)
J/MNRAS/443/2561 : CONCH-SHELL catalog of nearby M dwarfs (Gaidos+, 2014)
J/ApJ/804/64 : Empirical and model parameters of 183 M dwarfs (Mann+, 2015)
J/ApJ/822/97 : Rotation-Activity Correlations in K-M dwarfs. I.
(Houdebine+, 2016)
J/ApJ/837/96 : Rotation-Activity Correlations in K-M dwarfs II.
(Houdebine+, 2017)
J/A+A/620/A180 : Stellar properties of M dwarfs (Rajpurohit+, 2018)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 1 I1 --- Set [1/9] Spectral subset (1)
3- 17 A15 --- Star Star name
19- 24 F6.3 mag Vmag [3.875/19.56] V band magnitude
26- 26 A1 --- q_Vmag [?] Quality flag on Vmag
28- 32 F5.3 mag R-I [0.514/2.428]? Cousins R-I color
34- 37 I4 K Teff1 [2767/4806]? Effective temperature from this
work (G1)
39- 42 I4 K Teff2 [2530/4862]? Effective temperature compiled
from the literature
44- 47 I4 K Teffmean [2681/4801]? Mean effective temperature
49- 51 I3 K e_Teffmean [1/301]? Uncertainty in Teffmean
53- 61 A9 --- SpType ? Spectral type
63- 70 F8.4 mas Plx [0.8524/768.13]? Parallax from Gaia DR2
(Cat. I/345)
72- 78 F7.4 mas e_Plx [0.0142/36]? Uncertainty in Plx
80- 85 F6.3 mag VMag [0.628/19.268]? Absolute V band magnitude
87- 91 F5.3 mag e_VMag [0.02/0.711]? Uncertainty in VMag
93- 98 F6.3 Rsun R* [0.04/31.207]? Stellar radius
100-104 F5.3 Rsun e_R* [0.003/2.209]? Uncertainty in R*
106-110 F5.2 [-] [M/H] [-3.14/1.41]? Metallicity compiled from
the literature
112-114 I3 --- Nspec [1/383]? Number of high resolution spectra
116-128 A13 --- Com Comment
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Note (1): Spectral sub-samples are defined as follows:
1 = Mid-K sample;
2 = Late-K sample;
3 = M0-M1 sample;
4 = dM2 sample;
5 = dM3 sample;
6 = dM4 sample;
7 = dM5 sample;
8 = dM6 sample;
9 = dM7 sample.
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Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 A13 --- Star Star name
15- 19 F5.3 mag R-I [0.39/2.45]? Cousins R-I color
21- 24 I4 K Teff1 [2759/5346]? Effective temperature from this work
(G1)
26- 29 I4 K Teff2 [2700/4131]? Effective temperature from Mann et al.
(2015, J/ApJ/804/64)
31- 34 I4 K Teff3 [3054/5407]? Effective temperature from
Boyajian et al. (2012, J/ApJ/757/112)
36- 39 I4 K dTeff [-301/221]? Temperature difference between value
of this paper and literature
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Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Star Star name
11- 14 I4 K Teff1 [3099/3358] Effective temperature from this work
(G1)
16- 19 I4 K Teff2 [3070/3320]? Effective temperature from
Morales et al. (2008, J/A+A/478/507)
21- 24 I4 K Teff3 [2887/3265]? Effective temperature from
Jenkins et al. (2009, J/ApJ/704/975)
26- 29 I4 K Teff4 [3191/3834]? Effective temperature from
Wright et al. (2011, J/ApJ/743/48)
31- 34 I4 K Teff5 [3089/3241]? Effective temperature from
Stelzer et al. (2013, J/MNRAS/431/2063)
36- 39 I4 K Teff6 [2980/3400]? Effective temperature from
Lepine et al. (2013, J/AJ/145/102)
41- 44 I4 K Teff7 [3023/3604]? Effective temperature from
Gaidos et al. (2014, J/MNRAS/443/2561)
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Global notes:
Note (G1): Teff1 values obtained in the present paper using the derived
(R-I)C-Teff calibration.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 18-Sep-2019