J/other/RAA/15.1325 Be stars in LAMOST DR1 (Lin+, 2015)
Searching for classical Be stars in LAMOST DR1.
Lin C.-C., Hou J.-L., Chen L., Shao Z.-Y., Zhong J., Yu P.-C.
<Res. Astron. Astrophys., 15, 1325-1331 (2015)>
=2015RAA....15.1325L 2015RAA....15.1325L (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Stars, Be
Keywords: stars: emission-line - Be - stars: early-type -
open clusters and associations: general
Abstract:
We report on searching for Classical B-type emission-line (CBe) stars
in the first data release of the Large Sky Area Multi-Object fiber
Spectroscopic Telescope (LAMOST; also called the Guo Shou Jing
Telescope). A total of 192 objects (including 12 previously known
CBes) were identified as CBe candidates with prominent HeI
λ4387, HeI λ4471 and MgII λ4481 absorption lines,
as well as Hβ λ4861 and Hα λ6563 emission
lines. These candidates significantly increase the currently known
sample of CBes by about 8%. Most of the CBe candidates are distributed
near the Galactic Anti-Center due to the observing strategy used for
LAMOST. Only two CBes are in star clusters. These two CBes have ages
of 15.8 and 398Myr, respectively.
Description:
We describe a search for CBes using LAMOST DR1. A total of 192 (with
12 previously known CBes) objects were identified as CBes with
prominent HeI λ 4387, HeI λ4471 and MgII λ4481
absorption lines, as well as Hβλ4861 and
Hαλ6563 emission lines.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 88 23 23 Known CBes Found in LAMOST DR1
table3.dat 90 22 CBe Candidates
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See also:
V/146 : LAMOST DR1 catalogs (Luo+, 2015)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- KName Name (KNN)
5- 11 I7 --- DR1index DR1 index
13- 31 A19 --- 2MASS 2MASS designation (JHHMMSS.ss+DDMMSS.s) (1)
33- 38 F6.3 mag Jmag 2MASS J magnitude
40- 44 F5.3 mag e_Jmag rms uncertainty on Jmag
46- 51 F6.3 mag Hmag 2MASS H magnitude
53- 57 F5.3 mag e_Hmag rms uncertainty on Hmag
59- 64 F6.3 mag Ksmag 2MASS KS magnitude
66- 70 F5.3 mag e_Ksmag rms uncertainty on Ksmag
72- 88 A17 --- Rem Remarks
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Note (1): K14-K23 are matched from the 2MASS point source catalog with radii
larger than 5".
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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- 4 A4 --- LName Name (LNNN)
6 A1 --- n_LName [1/2] Note on Name (1)
8- 26 A19 --- 2MASS 2MASS Designation (JHHMMSS.ss+DDMMSS.s)
28- 33 F6.3 mag Jmag 2MASS J magnitude
35- 39 F5.3 mag e_Jmag rms uncertainty on Jmag
41- 46 F6.3 mag Hmag 2MASS H magnitude
48- 52 F5.3 mag e_Hmag rms uncertainty on Hmag
54- 59 F6.3 mag Ksmag 2MASS KS magnitude
61- 65 F5.3 mag e_Ksmag rms uncertainty on Ksmag
67- 90 A24 --- Simbad Simbad name and type, or new if not yet in Simbad
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Note (1): Notes as follows:
1 = member of the open cluster FRS 1025
2 = member of the open cluster Kronberger 8
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Nov-2015