J/ApJS/253/54 Galactic O-type stars from LAMOST spectra (Li, 2021)
Galactic O-type stars in LAMOST data.
Li G.-W.
<Astrophys. J. Suppl. Ser., 253, 54-54 (2021)>
=2021ApJS..253...54L 2021ApJS..253...54L (SIMBAD/NED BibCode)
ADC_Keywords: Stars, O; Spectra, optical; Spectral types;
Binaries, spectroscopic
Keywords: O stars; Oe stars; Oef stars; Of stars; O dwarf stars; O giant stars
O subgiant stars; O supergiant stars; Spectroscopy
Spectroscopic binary stars
Abstract:
This paper reports 209 O-type stars found with LAMOST. All 135 new
O-type stars discovered so far with LAMOST are given. Among them,
94 stars are first presented in this sample. There are 1 Iafpe star,
5 Onfp stars, 12 Oe stars, 1 Ofc stars, 3 ON stars, 16 double-lined
spectroscopic binaries, and 33 single-lined spectroscopic binaries.
All O-type stars are determined based on LAMOST low-resolution spectra
(R∼1800), with their LAMOST median-resolution spectra (R∼7500) as
supplements.
Description:
I used the method given in Li & Howarth (2020ApJ...888...81L 2020ApJ...888...81L) to
select O-type stars in the LAMOST low-resolution spectral data
(R∼1800) between 2011 and 2018, and LAMOST medium-resolution spectra
(R∼7500) are also used, if any.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 95 208 *Spectral information for LAMOST O-type stars
sp/* . 208 *Individual LAMOST low-resolution spectra
in FITS format
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Note on table1.dat and sp/*: LAMOST-O 109 is an SB2, which will be published
in a future paper.
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Description of file:
On the FTP, the subdirectory sp_SB is also available which includes
additional spectra for SB1 and SB2 stars (except 109).
See also:
B/mk : Catalogue of Stellar Spectral Classifications (Skiff, 2009- )
III/84 : Galactic O Stars (Cruz-Gonzalez+ 1974)
II/122 : UBV Photoelectric Catalog: data 1953-1985 (Mermilliod 1987)
III/276 : Spectral Classes in the Galaxy Anticenter (Chargeishsvili, 1988)
V/116 : Galactic O star catalog (Maiz-apellaniz+, 2004)
V/125 : Photometry and Spectroscopy for Luminous Stars (Reed 2005)
III/274 : Galactic O-Star Spectroscopic Survey (GOSSS) (Sota+, 2014)
V/153 : LAMOST DR4 catalogs (Luo+, 2018)
J/ApJS/2/389 : Observations of O and B stars (Hiltner, 1956)
J/A+A/343/806 : The trapezium system BD+00 1617 (Munari+ 1999)
J/ApJ/648/580 : Rotational velocities in 19 open clusters (Huang+, 2006)
J/A+A/470/161 : UBV photometry of HII regions exciting stars (Russeil+, 2007)
J/A+A/541/A34 : Spectral types of stars in CoRoT fields (Sebastian+, 2012)
J/A+A/543/A101 : OB stars in Cygnus OB2 association (Comeron+, 2012)
J/other/Sci/337.444 : RV curves of Galactic massive O stars (Sana+, 2012)
J/A+A/550/A27 : Cygnus OB1-OB4 O stars radial velocities (Mahy+, 2013)
J/A+A/564/A39 : VFTS. OVz stars in 30 Dor (Sabin-Sanjulian+, 2014)
J/A+A/564/A40 : VFTS. O-type stellar content of 30 Dor (Walborn+, 2014)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/ApJS/213/34 : Velocities of Cygnus OB2 massive binaries (Kobulnicky+, 2014)
J/A+A/579/A19 : K2 Variable Catalogue (Armstrong+, 2015)
J/ApJS/224/4 : GOSSS III. Additional O-type systems (Maiz Apellaniz+, 2016)
J/AJ/152/31 : Spectral classif. of O Vz stars from GOSSS (Arias+, 2016)
J/A+A/612/A50 : New massive members of Cygnus OB2 (Berlanas+, 2018)
J/A+A/616/L15 : Parallaxes and Proper Motions of OB stars (Xu+, 2018)
J/AJ/156/234 : KELT transit false positive catalog for TESS (Collins+, 2018)
J/ApJS/241/32 : OB stars from the LAMOST DR5 spectra (Liu+, 2019)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- --- [LAMOST-O]
10- 12 I03 --- Seq [1/209] LAMOST O-star sequential number
14- 23 F10.6 deg RAdeg [18.6/359.8] Right Ascension (J2000) (1)
25- 33 F9.6 deg DEdeg [-7.9/63.6] Declination (J2000) (1)
35- 60 A26 --- Name Simbad recommended name
62- 66 F5.2 arcsec Offset [3.3/28.7]? Distance between fiber positions
and star positions
68- 89 A22 --- SpT Spectral type
91- 93 A3 --- Mult Multiple type, e.g., SB1, SB2
95 A1 --- New [BT ] New source? (2)
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Note (1): The positions given in this table are LAMOST fiber positions,
which may be not the exact positions of stars with V<10mag, because
bright stars may saturate spectra (Lei+ 2014IAUS..298..418L 2014IAUS..298..418L). As a
compromise, LAMOST fibers were positioned to their neighbor places.
Note (2): New source flags. Blank values indicate the O-type stars found with
other telescopes before, not LAMOST. Code as follows:
T = denotes the new O-type stars found with LAMOST firstly in this work;
B = denotes the new ones given in Liu+ (2019, J/ApJS/241/32),
Roman-Lopes & Roman-Lopes (2019MNRAS.484.5578R 2019MNRAS.484.5578R),
Li & Howarth (2020ApJ...888...81L 2020ApJ...888...81L) and Li (2020ApJ...892L..26L 2020ApJ...892L..26L);
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History:
From electronic version of the journal for Table 1
Spectra downloaded at: http://doi.org/10.12149/101049
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 01-Jul-2021