THE BERLIN EXOPLANET SEARCH TELESCOPE II CATALOG OF VARIABLE STARS. I. CHARACTERIZATION OF THREE SOUTHERN TARGET FIELDS

被引：7

作者：

Fruth, T. ^{[1
]}

Cabrera, J. ^{[1
]}

Chini, R. ^{[2
,3
]}

Csizmadia, Sz ^{[1
]}

Dreyer, C. ^{[1
,4
]}

Eigmueller, P. ^{[1
]}

Erikson, A. ^{[1
]}

Kabath, P. ^{[1
,5
]}

Kirste, S. ^{[1
]}

Lemke, R. ^{[2
]}

Murphy, M. ^{[6
]}

Pasternacki, T. ^{[1
]}

Rauer, H. ^{[1
,4
]}

Titz-Weider, R. ^{[1
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt, Inst Planetenforsch, D-12489 Berlin, Germany

[2] Ruhr Univ Bochum, Astron Inst, D-44780 Bochum, Germany

[3] Univ Catolica Norte, Inst Astron, Antofagasta, Chile

[4] Tech Univ Berlin, Zentrum Astron & Astrophys, D-10623 Berlin, Germany

[5] European So Observ, Santiago 19, Chile

[6] Univ Catolica Norte, Dept Fis, Antofagasta, Chile

来源：

ASTRONOMICAL JOURNAL | 2013年 / 146卷 / 05期

关键词：

binaries: eclipsing; stars: variables: general; techniques: photometric; GRAVITATIONAL LENSING EXPERIMENT; SKY AUTOMATED SURVEY; CEPHEID-TYPE VARIABILITY; ECLIPSING BINARY STARS; LARGE-MAGELLANIC-CLOUD; IMAGE SUBTRACTION; PULSATING VARIABLES; LIGHT CURVES; IDENTIFICATION; PERIODS;

D O I：

10.1088/0004-6256/146/5/136

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A photometric survey of three southern target fields with BEST II yielded the detection of 2406 previously unknown variable stars and an additional 617 stars with suspected variability. This study presents a catalog including their coordinates, magnitudes, light curves, ephemerides, amplitudes, and type of variability. In addition, the variability of 17 known objects is confirmed, thus validating the results. The catalog contains a number of known and new variables that are of interest for further astrophysical investigations, in order to, e.g., search for additional bodies in eclipsing binary systems, or to test stellar interior models. Altogether, 209,070 stars were monitored with BEST II during a total of 128 nights in 2009/2010. The overall variability fraction of 1.2%-1.5% in these target fields is well comparable to similar ground-based photometric surveys. Within the main magnitude range of R epsilon [11, 17], we identify 0.67(3)% of all stars to be eclipsing binaries, which indicates a completeness of about one third for this particular type in comparison to space surveys.

引用

页数：10

共 13 条

[11] The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. I. Classical Cepheids in the Large Magellanic Cloud
Soszynski, I.
Poleski, R.
Udalski, A.
Szymanski, M. K.
Kubiak, M.
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Wyrzykowski, L.
Szewczyk, O.
Ulaczyk, K.
ACTA ASTRONOMICA, 2008, 58 (03): : 163 - 185
[12] A search for variable subdwarf B stars in TESS full frame images - I. Variable objects in the southern ecliptic hemisphere
Sahoo, S. K.
Baran, A. S.
Sanjayan, S.
Ostrowski, J.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 499 (04) : 5508 - 5526
[13] The All Sky Automated Survey.: The catalog of variable stars.: II.: 6h-12h quarter of the southern hemisphere
Pojmanski, G
ACTA ASTRONOMICA, 2003, 53 (04): : 341 - 369

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