A radial velocity study of CTCV J1300-3052

被引：16

作者：

Savoury, C. D. J. ^{[1
]}

Littlefair, S. P. ^{[1
]}

Marsh, T. R. ^{[2
]}

Dhillon, V. S. ^{[1
]}

Parsons, S. G. ^{[2
]}

Copperwheat, C. M. ^{[2
]}

Steeghs, D. ^{[2
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[2] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 422卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

binaries: close; binaries: eclipsing; stars: dwarf novae; stars: evolution; stars: low mass; novae; cataclysmic variables; ECLIPSING DWARF NOVA; CATACLYSMIC VARIABLES; WHITE-DWARF; ACCRETION DISKS; Z-CHAMAELEONTIS; DONOR STARS; Z-CHA; MASS; EMISSION; SPECTROSCOPY;

D O I：

10.1111/j.1365-2966.2012.20625.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present time-resolved spectroscopy of the eclipsing, short-period cataclysmic variable CTCV J1300-3052. Using absorption features from the secondary star, we determine the radial velocity semi-amplitude of the secondary star to be K-2 = 378 +/- 6 km s(-1), and its projected rotational velocity to be upsilon sin i = 125 +/- 7 km s(-1). Using these parameters and Monte Carlo techniques, we obtain masses of M-1 = 0.79 +/- 0.05 M-circle dot for the white dwarf primary and M-2 = 0.198 +/- 0.029 M-circle dot for the M-type secondary star. These parameters are found to be in good agreement with previous mass determinations found via photometric fitting techniques, supporting the accuracy and validity of photometric mass determinations in short-period CVs.

引用

页码：469 / 477

页数：9

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