Tytuł artykułu
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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
Abstrakty
We present observations and analysis of a new eclipsing binary HBHA 4705-03. Using decomposition of the light curve into accretion disk and hot spot components, we estimated photometrically the mass ratio of the studied system to be q=0.62±0.07. Modeling of the system yields the following fundamental parameters: white dwarf mass M1=(0.8±0.2) Msun, secondary mass M2=(0.497±0.05) Msun, orbital radius a=1.418 Rsun, orbital inclination i=(81.°58±0.°5), accretion disk radius rd/a=0.366±0.002, and accretion rate M=(2.5±2)x1018 [g/s] (3×10-8 Msun/yr). Power spectrum analysis revealed a set of possible low-period Quasi Periodic Oscillations centered at the frequencies f1=0.00076 Hz, f2=0.00048 Hz and f3=0.00036 Hz. The system B-V=0.04 mag corresponds to a dwarf nova color during an outburst. The light curves of HBHA 4705-03 suggest that it is a nova-like variable star.
Czasopismo
Rocznik
Tom
Strony
225--238
Opis fizyczny
Bibliogr. 24 poz., rys., wykr.
Twórcy
autor
- stronomical Observatory, Jagiellonian University, ul. Orla 171, 30-244 Kraków, Poland
autor
- Istanbul University, Faculty of Sciences, Department of Astronomy and Space Sciences, 34119 University, Istanbul, Turkey
autor
- University of Warwick, Department of Physics, Coventry, CV4 7AL, UK
autor
- Akdeniz University, Faculty of Science, Department of Astronomy and Space Technologies, 07058 Akdeniz University Campus, Antalya, Turkey
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-842c5c68-8599-469e-90d4-39c2a7c31f07