Browse > Article
http://dx.doi.org/10.5140/JASS.2006.23.4.319

PHOTOMETRIC OBSERVATIONS AND LIGHT CURVE ANALYSIS OF BL ERIDANI  

Han, Won-Yong (Korea Astronomy and Space Science Institute)
Yim, Hong-Suh (Korea Astronomy and Space Science Institute)
Lee, Chung-Uk (Korea Astronomy and Space Science Institute)
Youn, Jae-Hyuck (Korea Astronomy and Space Science Institute)
Yoon, Joh-Na (Korea Astronomy and Space Science Institute)
Kim, Ho-Il (Korea Astronomy and Space Science Institute)
Moon, Hong-Kyu (Korea Astronomy and Space Science Institute)
Byun, Yong-Ik (Department of Astronomy & University Observatory, Yonsei University)
Park, Sun-Youp (Department of Astronomy & University Observatory, Yonsei University)
Publication Information
Journal of Astronomy and Space Sciences / v.23, no.4, 2006 , pp. 319-326 More about this Journal
Abstract
We present light curves of a short period binary system BL Eridani. The light curves were observed with VRI filters by a 50cm wide field robotic telescope at Siding Spring Observatory (SSO), equipped with a 2K CCD camera, which was developed by Korea Astronomy and Space Science Institute (KASI), and Yonsei University Observatory(YUO). The photometric observations were made on 6 nights by automatic operation mode and remote observation mode at SSO and KASI in Korea, respectively. We obtained new VRI CCD light curves and new 5 times of minima, and analyzed the light corves with the Wilson & Deviney (1971) binary 2005 version and derived the new photometric solutions. The mass ratio q=0.48 in this study shows different value with earlier investigators. According to the model analysis, it is considered that the BL Eri system is currently undergoing contact stage of the two binary components, rather than near-contact stage.
Keywords
eclipsing binaries; BL Eridani; photometry; light curve solution; robotic telescope;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kwee, K.K.& van Woerden, H. 1956, BAN, 12, 327
2 Van Hamme, W. 1993, AJ, 106, 209
3 Molik, P. 1998, IBVS, No.4577
4 Flower, P. J. 1996, ApJ, 469, 355   DOI
5 Harmanec, P. 1988, BAICz, 39, 329
6 Kern, J. R. & Bookmyer B.B. 1986, IBVS, NO.2850
7 Liu, Q., Soonthornthum, B., Yang, Y., Gu, S., Niparugs, S., Aniwat Sooksawat, M. L., Wang, B., & Naksata, M. 1996, A&AS, 118, 453   DOI   ScienceOn
8 Lucy, L. B. 1967, Zeitschrift fur Astrophysik, 65, 89
9 Rucinski, S. M. 1969, A&A, 19, 245
10 Wilson, R. E. & Devinney, E. J. 1971, ApJ, 166, 605   DOI
11 Yamasaki, A., Jugaku, J., & Seki, M. 1988, AJ, 95, 894   DOI