Share This Article:

Photometric Study of Three Short-Period Eclipsing Binaries from the ASAS Catalogue

Abstract Full-Text HTML Download Download as PDF (Size:617KB) PP. 123-130
DOI: 10.4236/ijaa.2013.32014    3,437 Downloads   5,331 Views   Citations

ABSTRACT

We present the results of our study of three previously unstudied short-period eclipsing binaries, namely: ASAS 110609 2045.3, ASAS105331 7424.7, and ASAS 130057 + 2120.3. Using the visual (V)-band data obtained from the ASAS catalogue, the orbital and physical parameters of the systems were derived for the first time using the Wilson-Divenney (WD) codes. Our investigation revealed that ASAS 110609 2045.3 is a near-contact binary star of the W Uma type having an angle of inclination of 80° ± 1, a mass ratio of about 0.5, an orbital period of 0.2933 ± 0.0130 days, and an effective temperature in the range of 5800 K - 6200 K, making it a G2V-F7V spectral system. ASAS 105331 7424.7 was established to be an over-contact binary system of the W Uma type, inclined at 86° ± 2 to the line of sight, having a mass ratio of about 0.9, a period of 0.4825 ± 0.0002, and an effective temperature in the range of 5200 K - 5300 K, making it a K2V-K0V spectral system. A third light factor of just 0.1 was established for the system, however, no evidence of starspots or discs was inferred for either component. ASAS 130,057 + 2120.3 is a W Uma binary having a mass ratio of about 0.6 in a state of marginal contact. Its orbital inclination is 55° ± 1; the effective temperature is in the range of 6200 K - 6500 K, making it a F7V-F5V stellar system. The system showed evidence of third light, with a third light factor of 0.6, however, the presence of spots or discs could not be established for either component. The deduced period was 0.8930 ± 0.0014 days. None of the systems showed any evidence of the O’Connell effect on either component.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

J. Obu and P. Okeke, "Photometric Study of Three Short-Period Eclipsing Binaries from the ASAS Catalogue," International Journal of Astronomy and Astrophysics, Vol. 3 No. 2, 2013, pp. 123-130. doi: 10.4236/ijaa.2013.32014.

References

[1] H. A. Abt, “Normal and Abnormal Binary Frequencies,” Annual Review of Astronomy and Astrophysics, Vol. 21, 1983, pp. 343-372. doi:10.1146/annurev.aa.21.090183.002015
[2] D. W. Latham, T. Mazeh, R. P. Stefanik, R. J. Davis, B. W. Carney, G. Torres and J. B. Laird, “Spectroscopic Binaries in the Halo,” In: H. A. McAlister and W. I. Hartkopf, Eds., Complementary Approaches to Double and Multiple Star Research, IAU Colloquium 135, ASP Conference Series, Vol. 32, 1992, pp. 158-161.
[3] D. J. Pinfield, P. D. Dobbie, R. F. Jameson, I. A. Steele, H. R. A. Jones and A. C. Katsiyannis, “Brown Dwarfs and Low-Mass Stars in the Pleiades and Praesepe: Membership and Binarity,” Monthly Notices of the Royal Astronomical Society, Vol. 342, No. 4, 2003, pp. 1241-1259. doi:10.1046/j.1365-8711.2003.06630.x
[4] C. Maceroni, “Binaries as Astrophysical Laboratories: An Overview,” In: C. Sterken and C. Aerts, Eds., Astrophysics of Variable Stars, ASP Conference Series, Vol. 349, 2006, pp. 41-53.
[5] I. Ribas, “Binary Stars as Astrophysical Laboratories: Open Questions,” In: C. Sterken and C. Aerts, Eds., Astrophysics of Variable Stars, ASP Conference Series, Vol. 349, 2006, pp. 55-70.
[6] B. Paczynski, D. M. Szczygiel, B. Pilecki and G. Pojmanski, “Eclipsing Binaries in the All Sky Automated Survey Catalogue,” Monthly Notices of the Royal Astronomical Society, Vol. 368, No. 3, 2006, pp. 1311-1318. doi:10.1111/j.1365-2966.2006.10223.x
[7] R. E. Wilson and E. J. Divenney, “Realization of Accurate Close-Binary Light Curves: Application to MR Cygni,” The Astrophysical Journal, Vol. 166, 1971, pp. 605-619. doi:10.1086/150986
[8] T. Vanmunster, “Peranso 2.5: A Light Curve and Analysis Software User Manual,” 2008. CBABelgium.com
[9] D. H. Bradstreet and D. P. Steelman, “Binary Maker 3: User Manual,” Contact Software, Norristown, 2005.
[10] G. Pojmanski, “The All Sky Automated Survey. Catalog of Variable Stars I. 0h-6h Quarter of the Southern Hemisphere,” Acta Astronomica, Vol. 52, 2002, pp. 397-427.
[11] M. S. Bessell and J. M. Brett, “JHKLM Photometry: Standard Systems, Passbands, and Intrinsic Colors,” Publications of the Astronomical Society of the Pacific, Vol. 100, 1988, pp. 1134-1151. doi:10.1086/132281
[12] R. E. Wilson, “Eccentric Orbit Generalization and Simultaneous Solution of Binary Star Light and Velocity Curves,” The Astrophysical Journal, Vol. 234, 1979, pp. 1054-1066. doi:10.1086/157588
[13] A. T. Tokunaga, “Effective Temperatures and Intrinsic Colours for Main Sequence, Giant, and Supergiant Stars,” In: A. N. Cox, Ed., Allen’s Astrophysical Quantities, 4th Edition, Springer-Verlag, New York, 2000, pp. 143-149. doi:10.1007/978-1-4612-1186-0_7
[14] S. Ferraz-Mello, “Estimation of Periods from Unequally Spaced Observations,” Astronomical Journal, Vol. 86, 1981, pp. 619-624. doi:10.1086/112924
[15] W. van Hamme, “New Limb-Darkening Coefficients for Modeling Binary Star Light Curves,” Astronomical Journal, Vol. 106, No. 5, 1993, pp. 2096-2117. doi:10.1086/116788
[16] L. B. Lucy, “The Light Curves of W Ursae Majoris Stars,” Astrophysical Journal, Vol. 153, 1968, pp. 877-884. doi:10.1086/149712
[17] S. M. Rucinski, “The Photometric Proximity Effects in Close Binary Systems. I. The Distortion of the Components and the Related Effects in Early Type Binaries,” Acta Astronomica, Vol. 19, 1969, pp. 125-153.
[18] G. Djurasevic, M. Yilmaz, O. Bastürk, T. Kiliuoglu, O. Latkovic and S. Caliskan, “Physical Parameters of Close Binaries QX Andromedae, RW Comae Berenices, MR Delphini, and BD + 07? 3142,” Astronomy and Astrophysics, Vol. 525, 2011. doi:10.1051/0004-6361/201014895
[19] K. Yakut, “An Observational Study of Unevolved Close Binary Stars,” Ph.D. Dissertation, Ege University, Izmir, 2006.
[20] R. Y. Kiron, K. Sriram and R. Vivekananda, “Photometric Parameters, Distance and Period-Colour Study of Contact Binary Stars in the Globular Cluster ω Centauri,” Bulletin of the Astronomical Society of India, Vol. 39, 2011, pp. 247-257.
[21] Qian, “Possible Mass and Angular Loss in Algol-Type Binaries. V. RT Persei and TX Ursae Majoris,” Astronomical Journal, Vol. 122, 2001, pp. 2686-2691.
[22] R. G. Samec, D. R. Faulker and D. B. Williams, “The Physical Nature and Orbital Behavior of V523 Cassiopeiae,” Astronomical Journal, Vol. 128, No. 6, 2004, pp. 2997-3004. doi:10.1086/426357
[23] O. Latkovic, M. Zboril and G. Djurassevic, “Light Curve Analysis of the Late Type Binary V523 Cassiopeiae” Serbian Astronomical Journal, Vol. 178, 2009, pp. 45-48. doi:10.2298/SAJ0978045L
[24] S. Zola, P. Niarchos, V. Manimamis and A. Dapergolas, “A Photometric Study of BH Cas,” Astronomy & Astrophysics, Vol. 374, 2001, pp. 164-170.

  
comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.