2012/10/01 by D. G. Yakin, В. Ф. Сулейманов, Yakin, D. G. +8
Engineering · Physics and Astronomy · #Astronomical Observations and Instrumentation #Astrophysical Phenomena and Observations #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1210.0423
4 pages, 4 figures, to be published in the proceedings of the 18th European White Dwarf Workshop
arxiv created 2012/10/01 · openalex publication_date 2012/10/01 · arxiv updated 2012/10/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Results of photometric and spectroscopic investigations of the recently discovered eclipsing cataclysmic variable star HBHA 4705-03 are presented. The emission spectra of the system show broad hydrogen and helium emission lines. The bright spots with an approximately zero velocity components are found in the Doppler maps for the hydrogen and ionized helium lines. The disc structure is more prominent in the maps for the neutral helium lines. The masses of the components (MWD = 0.54 ± 0.10 Msun and MRD = 0.45 ± 0.05 Msun), and the orbit inclination (i = 71.8 ± 0.7 deg) were estimated using the radial velocity light curve and the eclipse width. The modeling of the light curve allows us to evaluate the bright spot parameters and the mass accretion rate ( M ≈ 2 1017 g s-1).