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

Yıl 2023, Sayı: 054, 273 - 284, 30.09.2023

Neslihan Alan

https://doi.org/10.59313/jsr-a.1347413

Öz

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.

Anahtar Kelimeler

Eclipsing binary stars, photometry, absolute parameters, V1010 Cas

Destekleyen Kurum

Istanbul Universitesi

Proje Numarası

37903

Teşekkür

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.

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