J/MNRAS/496/3887 Bolometric correction for nearby MS stars (Eker+, 2020)
Empirical bolometric correction coefficients for nearby main-sequence stars in
the Gaia era.
Eker Z., Soydugan F., Bilir S., Bakis V., Alicavus F., Ozer S., Aslan G.,
Alpsoy M., Kose Y.
<Mon. Not. R. Astron. Soc., 496, 3887-3905 (2020)>
=2020MNRAS.496.3887E 2020MNRAS.496.3887E (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Spectral types ; Extinction ;
Parallaxes, trigonometric ; Photometry, UBV ; Stars, masses ;
Stars, diameters ; Effective temperatures
Keywords: stars: fundamental parameters - stars: binaries: eclipsing -
stars: binaries: spectroscopic -
Sun: general; astrophysics-solar and stellar astrophysics
Abstract:
Nearby detached double-lined eclipsing binaries with most accurate
data were studied and 290 systems were found with at least one
main-sequence component having a metallicity of 0.008=<Z=<0.040.
Stellar parameters, light ratios, Gaia Data Release 2 trigonometric
parallaxes, extinctions and/or reddening were investigated and only
206 systems were selected as eligible to calculate empirical
bolometric corrections. NASA/IPAC Galactic dust maps were the main
source of extinctions. Unreliable extinctions at low Galactic
latitudes |b|=<5° were replaced with individual determinations, if
they exist in the literature, else associated systems were discarded.
The main-sequence stars of te remaining systems were used to calculate
the bolometric corrections (BCs) and to calibrate the BC-Teff
relation, which is valid in the range 3100-36000K. De-reddened
(B-V)0 colours, on the other hand, allowed us to calibrate two
intrinsic colour-effective temperature relations; the linear one is
valid for Teff>10000K, while the quadratic relation is valid for
Teff<10000K; that is, both are valid in the same temperature range
in which the BC-Teff relation is valid. New BCs computed from Teff
and other astrophysical parameters are tabulated, as well.
Description:
Here, BC-Teff and (B-V)0-Teff relations for main-sequence stars
in the solar neighbourhood with metallicities in the range
0.008=<Z=<0.040, equivalent to an iron abundance distribution
-0.28=<[Fe/H]=<0.61, are calibrated. The calibration sample is
selected from detached eclipsing double-lined spectroscopic binaries
because the most accurate mass, radii and temperatures could be
obtained from their simultaneous LC and RV curves.
The BC-Teff and (B-V)0-Teff relations were used together with
interrelated MLR, MRR, and MTR relations from Eker et al.
(2018MNRAS.479.5491E 2018MNRAS.479.5491E, Cat. J/MNRAS/479/5491) and a self-consistent
table of photometric (B-V, BC, MV) and physical (M, R, logg)
parameters of nearby main-sequence stars was prepared (Table 6). It is
a self-consistent table because all the columns, except the first, are
calculated analytically from typical Teff values of the
main-sequence stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 229 206 Basic observational parameters of the detached
double-lined eclipsing systems selected
table2.dat 196 206 Physical parameters of selected systems that are
necessary in computing their BCs
table3.dat 196 33 Light ratios (L2/L1) from simultaneous
light- and radial-curve analysis of 33 detached
binaries that do not have light-ratio
information in their literature
table4.dat 93 206 De-reddened colours, bolometric magnitudes and
bolometric correction coefficients of the
present sample
table6.dat 51 52 Fundamental astrophysical parameters related to
BCs for nearby main-sequence stars with
0.008=<Z=<0.040
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See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
J/MNRAS/479/5491 : Absolute parameters of 509 main-sequence stars
(Eker+, 2018)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID [1/206] Internal object identifier
5- 27 A23 --- Name System name
29- 30 I2 h RAh Right ascension (J2000)
32- 33 I2 min RAm Right ascension (J2000)
35- 39 F5.2 s RAs Right ascension (J2000)
41 A1 --- DE- Declination sign (J2000)
42- 43 I2 deg DEd Declination (J2000)
45- 46 I2 arcmin DEm Declination (J2000)
48- 52 F5.2 arcsec DEs Declination (J2000)
54- 59 F6.2 deg GLON Galactic longitude
61- 66 F6.2 deg GLAT Galactic latitude
68- 82 A15 --- SpType Spectral type
84- 95 F12.9 d Period Orbital period
97- 115 A19 --- r_Period Reference for Period
117- 122 F6.3 mag Bmag ? B-band magnitude
124- 128 F5.3 mag e_Bmag ? Error on Bmag
130- 135 F6.3 mag Vmag V-band magnitude
137- 141 F5.3 mag e_Vmag Error on Vmag
143- 161 A19 --- refmag References for Bmag and Vmag
163- 168 F6.4 mag Av Extinction in the V-band
170- 175 F6.4 mag e_Av Error on Av
177- 195 A19 --- r_Av Reference for Av
196- 202 F7.4 mas plx Trigonometric parallax
204- 209 F6.4 mas e_plx Error on plx
211- 229 A19 --- r_plx Reference for plx
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID [1/206] Internal object identifier
5- 27 A23 --- Name System name
29- 34 F6.3 Msun M1 ? Primary mass
36- 40 F5.3 Msun e_M1 ? Error on M1
42- 47 F6.3 Msun M2 ? Secondary mass
49- 53 F5.3 Msun e_M2 ? Error on M2
55- 60 F6.3 Rsun R1 ? Primary radius
62- 66 F5.3 Rsun e_R1 ? Error on R1
68- 72 F5.3 Rsun R2 ? Secondary radius
74- 78 F5.3 Rsun e_R2 ? Error on R2
80- 98 A19 --- refMR Reference for M1, M2, R1 and R2
100- 104 I5 K T1 ? Primary effective temperature
106- 109 I4 K e_T1 ? Error on T1
111- 118 F8.2 K T2 ? Secondary effective temperature
120- 126 F7.2 K e_T2 ? Error on T2
128- 146 A19 --- refT Reference for the effective temperatures
148- 155 F8.6 --- L2/L1B ? Light ratio in the B-band
157- 161 F5.2 % L3B ? B-band contribution of the third body if it
exists
163- 170 F8.6 --- L2/L1V Light ratio in the V-band
172- 176 F5.2 % L3V ? V-band contribution of the third body if it
exists
178- 196 A19 --- refL Reference for the light ratios and contribution
of the third body
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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- 2 I2 --- ID [1/33] Object identifier
4- 26 A23 --- Name System name
28- 37 F10.7 d Period Orbital period
39- 43 I5 K T1 Primary effective temperature
45- 49 I5 K T2 Secondary effective temperature
51- 54 I4 K e_T2 Error on T2
56- 60 F5.3 --- M2/M1 Mass ratio
62- 67 F6.4 --- r1 Fractional radius of the primary (r1=R1/a)
69- 74 F6.4 --- e_r1 Error on r1
76- 81 F6.4 --- r2 Fractional radius of the secondary (r2=R2/a)
83- 88 F6.4 --- e_r2 Error on r2
90- 94 F5.3 --- L2/L1V Light ratio in the V-band
96- 100 F5.3 --- e_L2/L1V Error on L2/L1V
102- 106 F5.2 % L3V ? V-band contribution of the third body
108- 111 F4.2 % e_L3V ? Error on L3V
113- 116 F4.2 --- L2/L1B ? Light ratio in the B-band
118- 121 F4.2 --- e_L2/L1B ? Error on L2/L1B
123- 126 F4.2 % L3B ? B-band contribution of the third body
128- 131 F4.2 % e_L3B ? Error on L3B
133- 196 A64 --- Ref Reference
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID [1/206] Internal object identifier
5- 27 A23 --- Name System name
29- 34 F6.3 mag (B-V)1 ? B-V colour index for the primary
36- 41 F6.3 mag (B-V)2 ? B-V colour index for the secondary
43- 48 F6.3 mag Mbol1 ? Bolometric magnitude for the primary
50- 54 F5.3 mag e_Mbol1 ? Error on Mbol1
56- 61 F6.3 mag Mbol2 ? Bolometric magnitude for the secondary
63- 67 F5.3 mag e_Mbol2 ? Error on Mbol2
69- 74 F6.3 mag BC1 ? Bolometric correction coefficient for the
primary
76- 80 F5.3 mag e_BC1 ? Error on BC1
82- 87 F6.3 mag BC2 ? Bolometric correction coefficient for the
secondary
89- 93 F5.3 mag e_BC2 ? Error on BC2
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- SpType Spectral type
4- 8 I5 K Teff Effective temperature
10- 15 F6.3 mag B-V B-V colour index
17 A1 --- f_B-V [*] Flag on B-V (1)
19- 24 F6.3 mag BC Bolometric correction
26- 31 F6.3 mag VMAG Absolute V-band magnitude
33- 38 F6.3 Msun Mass Typical mass
40- 45 F6.3 Rsun Rad Typical radius
47- 51 F5.3 [cm/s2] logg Surface gravity
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Note (1): Flag as follows:
* = Value taken from Sung et al. (2013JKAS...46..103S 2013JKAS...46..103S)
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History:
From electronic version of the journal
(End) Ana Fiallos [CDS] 18-Jul-2023