CCD TIME-RESOLVED PHOTOMETRY OF FAINT CATACLYSMIC VARIABLES .4.

被引：36

作者：

HOWELL, SB

SZKODY, P

KREIDL, TJ

DOBRZYCKA, D

机构：

[1] PLANETARY SCI INST,TUCSON,AZ

[2] UNIV WASHINGTON,DEPT ASTRON,SEATTLE,WA 98195

[3] LOWELL OBSERV,FLAGSTAFF,AZ 86001

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1991年 / 103卷 / 661期

关键词：

CATACLYSMIC VARIABLES; BINARY PERIODS; CCD PHOTOMETRY;

D O I：

10.1086/132819

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We observed 15 faint stars, known or suspected to be cataclysmic variables, obtaining CCD time-resolved photometry in V, B, and the near-IR. The stars are: WX Cet, CP Eri, XZ Eri, V592 Her, TT Ind, AO Oct, BE Oct, CT Ser, V2276 Sgr, KK Tel, DR UMa, RW UMi, PG 0917+342, PG 2240+193, and 2139-453. All of the stars were observed for approximately 2 or more hours, with the average time-series length being over 3 hrs. We find orbital periods for the stars KK Tel and 2138-453 and a likely period confirmation for RW UMi. CP Eri is a probable DQ Her star, showing an optical modulation of 29 min. Nine other stars show photometric evidence which likely confirms them as cataclysmic variables, while the true natures of PG 0917+342 and PG 2240+193 are not yet revealed.

引用

页码：300 / 309

页数：10

共 24 条

[1]

DUERBECK HW, 1987, REFERENCE CATALOGUE

[2]

Gessner H., 1974, VEROEFF STERNW SONNE, V6, P249

[3] THE PALOMAR-GREEN CATALOG OF ULTRAVIOLET-EXCESS STELLAR OBJECTS [J].