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J/other/RAA/15.1325 Be stars in LAMOST DR1 (Lin+, 2015)
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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 (SIMBAD/NED BibCode)
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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
lambda4387, HeI lambda4471 and MgII lambda4481 absorption lines,
as well as Hbeta lambda4861 and Halpha lambda6563 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 lambda 4387, HeI lambda4471 and MgII lambda4481
absorption lines, as well as Hbetalambda4861 and
Halphalambda6563 emission lines.