THE FIRST LIGHT CURVE ANALYSIS OF V1010 CAS USING GROUND-BASED AND TESS DATA

Abstract

Eclipsing binary systems play a pivotal role in quantifying the absolute parameters of stars, such as the mass (M), the radius (R), and the luminosity (L), offering invaluable laboratories for astronomical research and enhancing our comprehension of stellar evolution as well as galaxy dynamics. These systems provide a unique opportunity to precisely ascertain these crucial parameters. The simultaneous analyses of high-quality space observations, combined with ground-based photometric data, have allowed more sensitive detection of fundamental stellar parameters by multicolour photometry. In the paper, the absolute parameters of the component stars for the V1010 Cas binary system were sensitively obtained by a simultaneous analysis of the Transiting Exoplanet Survey Satellite (TESS) light curve, and new CCD observations in BVRI filters obtained with 60 cm Robotic telescope (T60) at the TUBITAK National Observatory. Thereby, the radii and masses of the primary and secondary components were determined as R1 = 2.46  0.01 R, R2 = 1.78  0.03 R, and M1 = 2.06  0.05 M, M2 = 1.83  0.04 M, respectively. The distance of V1010 Cas was also calculated as 444  42 pc. Furthermore, the system's overall age was approximated at about 570 ± 60 Myr.

Keywords

• Eclipsing binary stars
• photometry
• absolute parameters
• V1010 Cas

Supporting Institution

Istanbul Universitesi

Project Number

37903

Thanks

This study was funded by the Scientific Research Projects Coordination Unit of Istanbul University. Project number: 37903. We thank TÜBİTAK for partial support towards using the T60 telescope via project 18BT60-1324. We also thank the on-duty observers and members of the technical staff at the TÜBİTAK National Observatory for their support before and during the observations.

References

1. [1] Ricker, G. R., Winn, J. N., Vanderspek, R., et al. (2015). Transiting Exoplanet Survey Satellite (TESS). Journal of Astronomical Telescopes, Instruments, and Systems, 1,014003.
2. [2] Kazarovets, E. V., Samus, N. N., Durlevich, O. V., Kireeva, N. N., Pastukhova, E. N. (2008). The 79th Name-List of Variable Stars. Information Bulletin on Variable Stars, 5863, #1.
3. [3] Parmaksizoglu, M., Dindar, M., Kirbiyik, H., Helhel, S. (2014). Software and electronic developments for TUG - T60 robotic telescope. Revista Mexicana de Astronomia y Astrofisica Conference Series, 45, 24.
4. [4] Bessell, M. S. (1990). UBVRI passbands. Publications of the Astronomical Society of the Pacific, 102, 1181-1199.
5. [5] Kilic, Y., Shameoni Niaei, M., Özeren, F. F., Yesilyaprak, C. (2016). MYRaf: A new Approach with IRAF for Astronomical Photometric Reduction. Revista Mexicana de Astronomia y Astrofisica Conference Series, 48, 38–39.
6. [6] Wilson, R.E., Devinney, R.J. (1971). Realization of Accurate Close-Binary Light Curves: Application to MR Cygni. The Astrophysical Journal, 166, 605.
7. [7] Zola, S., Rucinski, S.M., Baran, A., et. al. (2004). Physical Parameters of Components in Close Binary Systems: III. Acta Astronomica, 54, 299-312.
8. [8] Zola, S., Gazeas, K., Kreiner, J.M., et. al. (2010). Physical parameters of components in close binary systems – VII. Monthly Notices of the Royal Astronomical Society, 408, 464-474.

9. [9] Høg, E., Fabricius, C., Makarov, V. V., et al. (2000). The Tycho-2 catalogue of the 2.5 million brightest stars. Astronomy and Astrophysics, 355, L27–L30.
10. [10] Schlafly, E. F. and Finkbeiner, D. P. (2011). Measuring Reddening with Sloan Digital Sky Survey Stellar Spectra and Recalibrating SFD. The Astrophysical Journal, 737, 103.
11. [11] Eker, Z., Soydugan, F., Bilir, S., Bakis, V., et al. (2020). Empirical bolometric correction coefficients for nearby main-sequence stars in the Gaia era. Monthly Notices of the Royal Astronomical Society, 496, 3887–3905.
12. [12] Choi, J., Dotter, A., Conroy, C., Cantiello, M., Paxton, B., Johnson, B. D. (2016). Mesa Isochrones and Stellar Tracks (MIST). I. Solar-scaled Models. The Astrophysical Journal, 823, 102.
13. [13] Dotter, A. (2016). MESA Isochrones and Stellar Tracks (MIST) 0: Methods for the Construction of Stellar Isochrones. The Astrophysical Journal Supplement Series, 222, 8.
14. [14] Paxton, B., Bildsten, L., Dotter, A., Herwig, F., Lesaffre, P., Timmes, F. (2011). Modules for Experiments in Stellar Astrophysics (MESA). The Astrophysical Journal Supplement Series, 192, 3.
15. [15] Paxton, B., Cantiello, M., Arras, P., et al. (2013). Modules for Experiments in Stellar Astrophysics (MESA): Planets, Oscillations, Rotation, and Massive Stars. The Astrophysical Journal Supplement Series, 208, 4.
16. [16] Paxton, B., Marchant, P., Schwab, J., et al. (2015). Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions. The Astrophysical Journal Supplement Series, 220, 15.
17. [17] Paxton, B., Schwab, J., Bauer, E. B., et al. (2018). Modules for Experiments in Stellar Astrophysics (MESA): Convective Boundaries, Element Diffusion, and Massive Star Explosions. The Astrophysical Journal Supplement Series, 234. 34.
18. [18] van Hamme, W. (1993). New Limb-Darkening Coefficients for Modeling Binary Star Light Curves. The Astronomical Journal, 106, 2096.
19. [19] von Zeipel, H. (1924). The radiative equilibrium of a rotating system of gaseous masses. Monthly Notices of the Royal Astronomical Society, 84, 665–683.
20. [20] Rucinski, S. M. (1969). The Proximity Effects in Close Binary Systems. II. The Bolometric Reflection Effect for Stars with Deep Convective Envelopes. Acta Astronomica, 19, 245.
21. [21] Gaia Collaboration, Vallenari, A., Brown, A. G. A., Prusti, T., et al. (2023). Gaia Data Release 3. Summary of the content and survey properties. Astronomy and Astrophysics, 674, A1.
22. [22] Jaschek, C., Conde, H., de Sierra, A. C. (1964). Catalogue of stellar spectra classified in the Morgan-Keenan system. Observatory Astronomical La Plata Series Astronomies, 28, 1.
23. [23] Eker, Z., Demircan, O., Bilir, S., Karataş, Y. (2006). Dynamical Evolution of Active Detached Binaries on the logJo-logM Diagram and Contact Binary Formation. Monthly Notices of the Royal Astronomical Society, 373, 1483-1494.
24. [24] Eker, Z., Bakış, V., Bilir, S., Soydugan, F., Steer, I., Soydugan, E., Bakış, H., Aliçavuş, F., Aslan, G., Alpsoy, M. (2018). Interrelated Main-Sequence Mass-Luminosity, Mass-Radius, and Mass-Effective Temperature Relations. Monthly Notices of the Royal Astronomical Society, 479, 5491-55111.