J/ApJS/271/15 Masses of OB-type stars from LAMOST DR5 (Huo+, 2024)
The measurement of masses of OB-type stars from LAMOST DR5.
Huo Z., Liu Z., Cui W., Liu C., Liu J., Sun M., Feng S., Li L.
<Astrophys. J. Suppl. Ser., 271, 15 (2024)>
=2024ApJS..271...15H 2024ApJS..271...15H
ADC_Keywords: Stars, OB; Stars, masses; Stars, diameters; Abundances
Keywords: Early-type stars
Abstract:
The measurements of masses and luminosities of massive stars play an
important role in understanding the formation and evolution of their
host galaxies. In this work, we present the measurement of masses and
luminosities of 2946 OB-type stars, including 78 O-type stars and
2868 B-type stars, based on their stellar parameters (effective
temperature, surface gravity, and metallicity) and the Padova and
Trieste Stellar Evolution Code isochrones model. Our results show that
the median mass and luminosity of the 2946 OB-type stars are
5.4M☉ and log(L/L☉)=3.2 with median relative errors of
21.4% and 71.1%, respectively. A good agreement between our results
estimated by using our method and those derived by using the orbital
motions of binary stars from the literature is found for some B-type
stars. In addition, we also fit the mass-luminosity relation of B-type
stars by using our derived mass and the luminosity from Gaia Data
Release 3.
Description:
We use the OB catalog of Liu (2019, J/ApJS/241/32), which contains
16032 OB-type stars selected from LAMOST DR5 based on the stellar
spectral line indices, as our initial sample data.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 154 2946 The basic information and parameters of
2946 OB-type stars in LAMOST
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See also:
VI/96 : Evolutionary Sequences (Fagotto+ 1993-96)
V/164 : LAMOST DR5 catalogs (Luo+, 2019)
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)
I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)
J/AJ/106/773 : Mass-luminosity relation (Henry+, 1993)
J/A+A/333/231 : O-M stars model atmospheres (Bessell+ 1998)
J/A+AS/141/371 : Low-mass stars evolutionary tracks (Girardi+, 2000)
J/A+A/468/663 : Li abundances in solar-analog stars (Takeda+, 2007)
J/AN/331/349 : O, B-type & supergiant masses & luminosities (Hohle+, 2010)
J/A+A/523/A48 : Gaia photometry (Jordi+, 2010)
J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)
J/A+A/530/A108 : VLT-FLAMES Tarantula Survey (Evans+, 2011)
J/A+A/539/A143 : Nearby B-stars stellar param. and abundances (Nieva+, 2012)
J/other/Sci/337.444 : RV curves of Galactic massive O stars (Sana+, 2012)
J/ApJS/210/1 : Asteroseismic study of solar-type stars (Chaplin+, 2014)
J/other/PASA/31.24 : Milky Way detached double-lined EB catalog (Eker+, 2014)
J/MNRAS/445/2223 : Mass estimation for FGK stars (Pinheiro+, 2014)
J/AJ/149/131 : Param. of galactic nearby main-sequence stars (Eker+, 2015)
J/A+A/594/A116 : HI4PI spectra and column density maps (HI4PI team+, 2016)
J/MNRAS/479/5491 : Absolute parameters of 509 main-sequence stars (Eker+, 2018)
J/ApJS/241/32 : OB stars from the LAMOST DR5 spectra (Liu+, 2019)
J/ApJS/244/43 : Binary stars param. from LAMOST & Kepler obs. (Zhang+, 2019)
J/MNRAS/491/5489 : Semi-detached double-lined eclipsing binaries (Malkov, 2020)
J/ApJS/257/54 : Early-type star param. from LAMOST LRS & MRS (Guo+, 2021)
J/A+A/678/A19 : Gaia DR3 binary masses and luminosities (Chevalier+, 2023)
J/AJ/165/30 : Eclipsing Binaries from LAMOST Survey. III. (Xiong+, 2023)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- LAMOST LAMOST DR5 identifier (JHHMMSS.ss+DDMMSS.s)
21- 30 F10.6 deg RAdeg Right Ascension (J2000) (1)
32- 40 F9.6 deg DEdeg [-7.5/61] Declination (J2000) (1)
42- 47 F6.2 --- S/N [40/999] Signal-to-Noise in the g band of
LAMOST spectra
49- 52 F4.1 kK Teff [15/46.3] Effective temperature (2)
54- 56 F3.1 [cm/s2] logg [2.2/4.6] Log surface gravity (2)
58- 61 F4.1 [Sun] [M/H] [-1/0.3] Metallicity (2)
63- 66 F4.1 Msun Mass [3/92] Mass calculated using [M/H] (2)
68- 73 F6.2 Msun e_Mass [0.5/106] Uncertainty in Mass
75- 78 F4.1 Msun Mass2 [3/53] Mass calculated using solar
metallicity
80- 84 F5.2 Msun e_Mass2 [0.6/32] Uncertainty in Mass2
86- 89 F4.2 [Lsun] logL [1.99/6.3] Log luminosity calculated using
[M/H] (2)
91- 94 F4.2 [Lsun] e_logL [0.2/2.2] Uncertainty in logL
96- 100 F5.2 Rsun Rad [1.3/58.3] Radius calculated using [M/H] (2)
102- 106 F5.2 Rsun e_Rad [0.56/61] Uncertainty in Rad
108- 111 F4.2 [Lsun] logLbol [1/4.8]? Log bolometric luminosity (3)
113- 118 F6.3 Msun MassL [2.3/11.7]? Literature mass
120- 124 F5.3 Msun e_MassL [0.03/0.6]? Uncertainty in MassL
126- 130 F5.3 [Lsun] logLL [2.4/3.2]? Log literature luminosity
132- 136 F5.3 [Lsun] e_logLL [0/0.2]? Uncertainty in logLL
138- 142 F5.3 Rsun RadL [2.79/5.6]? Literature radius
144- 148 F5.3 Rsun e_RadL [0.1/0.2]? Uncertainty in RadL
150- 154 A5 --- Ref Literature reference codes (4)
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Note (1): From the LAMOST DR5 catalog (see V/164).
Note (2): From Guo et al. (2021, J/ApJS/257/54).
Note (3): Calculated by using photometric and astrometric data of
Gaia DR3 (I/355).
Note (4): Reference code as follows:
1 = Eker et al. (2014, J/other/PASA/31.24)
2 = Malkov (2020, J/MNRAS/491/5489)
3 = Hohle et al. (2010, J/AN/331/349)
4 = Eker et al. (2015, J/AJ/149/131)
5 = Eker et al. (2018, J/MNRAS/479/5491)
6 = Xiong et al. (2023, J/AJ/165/30)
7 = Surkova & Svechnikov (2004, V/115)
8 = Bondarenko & Perevozkina (1996OAP.....9...20B 1996OAP.....9...20B)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 23-Apr-2024