J/PASP/126/219 Southern Galactic Be star candidates (Sabogal+, 2014)
Search for southern Galactic Be star candidates.
Sabogal B.E., Garcia-Varela A.
<Publ. Astron. Soc. Pac., 126, 219-226 (2014)>
=2014PASP..126..219S 2014PASP..126..219S
ADC_Keywords: Milky Way ; Stars, Be ; Photometry
Abstract:
We present the result of a search for southern Galactic Be star
candidates within the group of miscellaneous variables of the ASAS-2
catalog of variable stars, using statistical, morphological,
photometric, and color criteria. This search lead us to obtain a
catalog of 213 new Be star candidates. The I-band light curves of
these candidates show outbursts (Type-1 stars) only in 9% of the
sample, and stochastic variations (Type-4 stars) in 91% of the sample.
We do not find stars showing clear high and low states (Type-2 stars)
or showing outbursts and high and low states simultaneously
(Type-1/Type-2 stars). Our sample of southern Galactic Be star
candidates provide valuable new bright targets for high resolution
spectroscopic studies with small/medium size telescopes.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 40 213 Catalog of 213 new Southern Bright Galactic Be
star candidates
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See also:
II/264 : ASAS Variable Stars in Southern hemisphere (Pojmanski+ 2002-05)
J/AcA/50/177 : All Sky Automated Survey Catalog (Pojmanski+, 2000)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- ASAS ASAS name (HHMMSS+DDMM.m, J2000)
15 A1 --- Flag [AB] Flag for light curve quality (1)
17- 18 A2 --- Type [T1 T4] long-term classification (2)
20- 25 F6.3 mag Vmag [9/15] Mean V magnitude
27- 32 F6.3 mag Imag [7.4/12.6] Mean I magnitude
34- 40 F7.3 mag (V-I)0 [-78/4.3] Intrinsic V-I colour index (3)
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Note (1): Flag as follows;
A = light curves with good quality, many points, and very clear shapes in
both databases, which facilitates a reliable classification
B = light curves with average quality and/or fewer points in one or both
databases
Note (2): following the criteria established by Mennickent et al. (2002,
Cat. J/A+A/393/887):
T1 = objects showing outbursts
T4 = objects showing light curves similar to those observed for Galactic
Be stars
Note (3): calculated using the extinction maps reported by
Schlafly & Finkbeiner (2011ApJ...737..103S 2011ApJ...737..103S).
Some large values for (V-I)0 are not normal but they are calculated at
the same way than the normal (V-I)0 values. In the paper we explain the
reason for these values and they are shown to indicate the candidates to
Be stars whose location in the Galaxy do not allow to obtain a reliable
extinction correction.
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Acknowledgements:
Beatriz Eugenia Sabogal Martinez, bsabogal(at)uniandes.edu.co
(End) Patricia Vannier [CDS] 23-Apr-2014