TWO-COLOR CCD PHOTOMETRY OF THE INTERMEDIATE POLAR 1RXS J180340.0+401214

被引：2

作者：

Andronov, Ivan L. ^{[2
]}

Kim, Yonggi ^{[1
,3
,4
]}

Yoon, Joh-Na ^{[1
]}

Breus, Vitalii V. ^{[2
]}

Smecker-Hane, Tammy A. ^{[4
]}

Chinarova, Lidia L. ^{[5
]}

Han, Wonyong ^{[6
,7
]}

机构：

[1] Chungbuk Natl Univ, Univ Observ, Cheongju 361763, South Korea

[2] Odessa Natl Maritime Univ, Dept High & Appl Math, UA-65029 Odessa, Ukraine

[3] Chungbuk Natl Univ, Inst Basic Sci Res, Cheongju 361763, South Korea

[4] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[5] Odessa Natl Univ, Astron Observ, UA-65014 Odessa, Ukraine

[6] Korea Astron Observ, Taejon 305348, South Korea

[7] Space Sci Inst, Taejon 305348, South Korea

来源：

JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY | 2011年 / 44卷 / 03期

关键词：

stars: individual; 1RXS J180340.0+401214; USNO-A2.0; 1275-09738647; stars: binary; stars: variable; stars: cataclysmic;

D O I：

10.5303/JKAS.2011.44.3.89

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results of two-color VR photometry of the intermediate polar RXS J1803. The data were aquired using the Korean 1-m telescope located at Mt. Lemmon, USA. Different "high" and "low" luminosity states, similar to other intermediate polars, were discovered. No statistically significant variability of the color index with varying luminosity was detected. The orbital variability was found to be not statistically significant. Spin maxima timings were determined, as well as the photometric ephemeris for the time interval of our observations. The spin period variations, caused by interaction of the accretion structure with the rotating magnetic white dwarf, were also detected. These variations are of complicated character, and their study requires further observations. We determine the color transformation coefficients for our photometric systems, and improve on the secondary photometric standards.

引用

页码：89 / 96

页数：8

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