Orbital Period Change Analysis of a Contact Binaries System V416 Gem
Article Sidebar
Main Article Content
Abstract
The V416 Gemini binary star system (V416 Gem) is a W UMa eclipsing contact binary system with an eclipsing period of about 0.25614 day. Light curves of V416 Gem was constructed in Visual and Red wavelength bands from CCD Photometric System Data observation by using 0.7-meter Reflecting Telescope at the Regional Observatory for the Public, Chachoengsao, Thailand on 18 December 2018, UT. The period change rate analysis of this binary star system was calculated to present time of minimum light and the O-C curve of V416 Gem which is constructed from the database table of Bob Nelson, fitted by Quadratic Polynomial Fitting Method. The results showed that the orbital period of V416 Gem had been increased continuously at a rate of -1.21 × 10-5 day/year. That was corresponded of angular momentum loss theory.
Article Details
บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการเผยแพร่ในวารสารวิทยาศาสตร์และเทคโนโลยี มรย. นี้ ถือเป็นลิขสิทธิ์ของวารสารวิทยาศาสตร์และเทคโนโลยี มรย. หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือกระทำการใดๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษรจากวารสารวิทยาศาสตร์และเทคโนโลยี มรย. ก่อนเท่านั้น
References
Bradstreet, D. H., & Guinan, E. F. (1994). Stellar mergers and acquisitions: The formation and
evolution of W Ursae majoris binaries, interacting binary stars. California Astronomical Society of the Pacific, 56, (228-243).
Bob Nelson’s Database of Eclipsing Binary O-C Files, AAVSO. https://www.aavso.org/bob-nelsons-o-c- files
Karen, A. C., John, F. K., Keivan, G. S., et al. (2017). Astroimagej: Image Processing and Photometric
Extraction for Ultra-Precise Astronomical Light Curves. The Astrophysical Journal, 115, no. 2.
Kreiner, J.M., (2004). An Atlas of O-C Diagrams of Eclipsing Binary Stars., Acta Astronomica, 54, 207-210.
Latkovic, O., Zboril, M. & Djurasevic, G. (2009). Light Curve Analysis of the Late Type Binary V523
Cassiopeiae., Serb. Astron. J., 178, 45-48.
Lister, T. A., Mcdermid R. M., and Hilditch, R. W., (2000). A Photometric Study of the Contact
Binaries V523 Cas and TY Uma., Mon. Not. R. Astron. Soc. 317, 111-119.
Palmen, J., & Davenhall, A. C. (2001). The CCD photometric calibration cookbook. Rutherford Appleton
Laboratory Particle Physics & Astronomy Research Council Starlink Project, starlink project 6.4.
SIMBAD Astronomical Database - CDS (Strasbourg)http://simbad.u-strasbg.fr/simbad/
Vilhu, O., & Heise, J. (1985). EXOSAT observations of the contact binary Vw-Cephei. Space Science Reviews, 40.
Zeilik, M., & Gregory, S. A. (1998). INTRODUCTORY ASTRONOMY & ASTROPHYSICS (4th ed.). Philadelphia:
Saunders College, 235-249)