RAPID OSCILLATIONS IN CATACLYSMIC VARIABLES .10. TW PICTORIS (=H 0534-581)

被引：7

作者：

PATTERSON, J ^{[1
]}

MOULDEN, M ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT ASTRON,NEW YORK,NY 10027

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1993年 / 105卷 / 689期

关键词：

D O I：

10.1086/133229

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Photometry of the X-ray-selected cataclysmic variable TW Pictoris (=H 0534-581) reveals a periodic signal at P=6.1 br, which is approximately the orbital period of the binary. In addition, a highly probable signal is found at P=119.76 +/- 0.09 min. Coupled with the high excitation, the high L(x)/L(opt) ratio, and the probable detection of a similar spectroscopic period, this makes it likely that the star belongs to the ''DQ Herculis'' class of cataclysmic variable-in which the stable short period is the spin period of an accreting magnetic white dwarf. Theory suggests that TW Pic is a particularly attractive candidate for showing circular polarization at visual or near-infrared wavelengths.

引用

页码：779 / 784

页数：6