J/ApJ/818/202 Hot subdwarf stars in LAMOST DR1 (Luo+, 2016)
Hot subdwarf stars observed in LAMOST DR1--Atmospheric parameters from
single-lined spectra.
Luo Y.-P., Nemeth P., Liu C., Deng L.-C., Han Z.-W.
<Astrophys. J., 818, 202 (2016)>
=2016ApJ...818..202L 2016ApJ...818..202L (SIMBAD/NED BibCode)
ADC_Keywords: Stars, subdwarf ; Surveys ; Spectroscopy
Keywords: catalogs - subdwarfs - surveys - techniques: spectroscopic
Abstract:
We present a catalog of 166 spectroscopically identified hot subdwarf
stars from LAMOST DR1, 44 of which show the characteristics of cool
companions in their optical spectra. Atmospheric parameters of 122
subdwarf stars with non-composite spectra were measured by fitting the
profiles of hydrogen (H) and helium (He) lines with synthetic spectra
from non-LTE model atmospheres. A unique property of our sample is
that it covers a large range in apparent magnitude and galactic
latitude, therefore it contains a mix of stars from different
populations and galactic environments.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 148 44 Parameters of 44 hot subdwarf stars with
composite spectra observed in LAMOST DR1
table2.dat 159 122 Atmospheric parameters of 122 hot subdwarf stars
with non-composite spectra
refs.dat 73 8 References
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See also:
II/207A : Palomar-Green cat. UV-excess stellar objects (Green+ 1986)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
I/305 : The Guide Star Catalog, Ver. 2.3.2 (GSC2.3) (STScI, 2006)
J/ApJ/419/596 : Pop I UV radiation models (Dorman+, 1993)
J/A+AS/122/285 : VCS Stark broadening tables for hydrogen (Lemke, 1997)
J/A+A/400/939 : Stellar parameters of 115 HQS sdB stars (Edelmann+, 2003)
J/AJ/130/873 : Properties of BQS objects in the SDSS DR3 (Jester+, 2005)
J/A+A/430/223 : Parameters of cool companions of sdB stars (Lisker+, 2005)
J/A+A/530/A28 : Priority targets for the MUCHFUSS project (Geier+, 2011)
J/MNRAS/427/2180 : GALEX survey subdwarf atmospheric parameters (Nemeth+ 2012)
J/A+A/551/A31 : New hot subdwarf spectral classification (Drilling+, 2013)
J/A+A/549/A110 : Metal abundances of sdB stars (Geier, 2013)
J/A+A/577/A26 : Radial velocities of hot subluminous stars (Geier+, 2015)
J/A+A/576/A44 : Hot subdwarf binaries from MUCHFUSS (Kupfer+, 2015)
J/MNRAS/448/822 : LAMOST candidate members of star clusters (Xiang+, 2015)
Byte-by-byte Description of file: table[12].dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- LAMOST LAMOST identifier
( in SIMBAD)
20 A1 --- f_LAMOST [b] Flag on LAMOST
22- 46 A25 --- OName Other name
48- 52 I5 K Teff [15120/61370]? Effective temperature
54- 58 A5 --- --- [±]
60- 64 I5 K e_Teff [20/18890]? Error in Teff
66- 71 F6.4 cm/s2 logg [4.532/6.538]? Surface gravity
73- 77 A5 --- --- [±]
79- 83 F5.3 cm/s2 e_logg [0.003/0.592]? Error in logg
85- 90 F6.3 --- logy [-7.466/4.717]? He abundance
91 A1 --- l_logy [>] Lower limit flag on logy
92- 96 A5 --- --- [±]
98-102 F5.3 --- e_logy [0.001/2.177]? Error in logy
104-109 A6 --- SpType Spectral type
111-115 F5.2 mag umag [13.19/17.82]? SDSS u magnitude
117-121 F5.2 mag gmag [11.26/16.98]? SDSS g magnitude
123-127 F5.2 mag rmag [9.95/18.52] SDSS r magnitude
129-134 F6.3 mag Vmag [10.156/18.241]? V magnitude (1)
136-141 F6.3 mag V-J [-0.841/1.154]? V-J color index (1)
143-148 F6.3 mag J-H [-1.43/0.808]? J-H color index (1)
150-154 F5.1 --- S/N [6.2/168.8]? Signal-to-noise ratio
156-159 A4 --- Ref Reference codes (see refs.dat file)
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Note (1): Optical V magnitudes were collected from GSC2.3.2 (Lasker et al.
2008, Cat. I/305) and UCAC4 (Zacharias et al. 2013, Cat. I/322) and infrared
(IR) JH magnitudes from 2MASS (Cutri et al. 2003, Cat. II/246).
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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 I1 --- Ref Reference code
3- 21 A19 --- BibCode BibCode
23- 37 A15 --- Aut Author's name
39- 73 A35 --- Com Comments
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History:
From electronic version of the journal
(End) Marianne Brouty [CDS] 15-Jan-2018