A TALE ON TWO CLOSE BINARIES IN PEGASUS

被引：0

作者：

Senavci, H. V. ^{[1
]}

Yilmaz, M. ^{[1
]}

Basturk, O. ^{[2
]}

Ozavci, I. ^{[1
]}

Caliskan, S. ^{[1
]}

Kilicoglu, T. ^{[1
]}

Tezcan, C. T. ^{[1
]}

机构：

[1] Ankara Univ, Fac Sci, Dept Astron & Space Sci, TR-06100 Ankara, Turkey

[2] Ankara Univ, Kreiken Observ, TR-06837 Ankara, Turkey

来源：

BALTIC ASTRONOMY | 2014年 / 23卷 / 02期

关键词：

stars: binaries: eclipsing; stars: fundamental parameters; stars: individual (BB Peg; V407; Peg); RADIAL-VELOCITY; PHYSICAL PARAMETERS; LIGHT CURVES; SYSTEM; STARS;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the simultaneous light and radial velocity curve analysis of two contact binaries in Pegasus using the Wilson-Devinney code. The following absolute astrophysical parameters are determined: masses, radii and effective temperatures. BB Peg is a W-subtype W UMa-type binary, components of which are main sequence stars with 0.50 M-circle dot and 1.40 M-circle dot. The radii of its components are R-1 = 0.81 R-circle dot and R-2 = 1.28 R-circle dot. V407 Peg is an A-subtype contact binary composed of two subgiant components with masses 1.70 M-circle dot and 0.43 M-circle dot, and radii R-1 = 2.17 R-circle dot and R-2 = 1.25 R-circle dot. Comparisons with the theoretical models for solar composition by Girardi et al. (2000) confirms our classification and supports the results.

引用

页码：123 / 135

页数：13

共 45 条

[21]

CERRUTISOLA M, 1981, ASTRON ASTROPHYS, V101, P273

[22] Physical parameters of 62 eclipsing binary stars using the All Sky Automated Survey-3 data - I [J].

Deb, Sukanta ;

Singh, Harinder P. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 412 (03) :1787-1803

[23] Transformations from theoretical Hertzsprung-Russell diagrams to color-magnitude diagrams: Effective temperatures, B-V colors, and bolometric corrections [J].

Flower, PJ .

ASTROPHYSICAL JOURNAL, 1996, 469 (01) :355-365

[24] Evolutionary tracks and isochrones for low- and intermediate-mass stars:: From 0.1.5 to 7 M⊙ and from Z=0.0004 to 0.03 [J].

Girardi, L ;

Bressan, A ;

Bertelli, G ;

Chiosi, C .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 2000, 141 (03) :371-383

[25]

Giuricin G., 1981, Astronomische Nachrichten, V302, P285, DOI 10.1002/asna.2103020605

[26] THE CALIBRATION OF MK SPECTRAL CLASSES USING SPECTRAL-SYNTHESIS .1. THE EFFECTIVE TEMPERATURE CALIBRATION OF DWARF STARS [J].

GRAY, RO ;

CORBALLY, CJ .

ASTRONOMICAL JOURNAL, 1994, 107 (02) :742-746

[27]

Hoffmeister C., 1931, ASTRON NACHR, V242, P129

[28]

Hog E., 2000, ASTRON ASTROPHYS, V30, P27

[29] Absolute properties of the binary system BB Pegasi [J].

Kalomeni, B. ;

Yakut, K. ;

Keskin, V. ;

Degirmenci, O. L. ;

Ulas, B. ;

Kose, O. .

ASTRONOMICAL JOURNAL, 2007, 134 (02) :642-647

[30] The first close-up of the "flip-flop" phenomenon in a single star [J].

Korhonen, H ;

Berdyugina, SV ;

Strassmeier, KG ;

Tuominen, I .

ASTRONOMY & ASTROPHYSICS, 2001, 379 (01) :L30-L33

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