Accretion onto the Companion of η Carinae during the Spectroscopic Event. II. X-Ray Emission Cycle

摘要: We calculate the X-ray luminosity and light curve for stellar binary system η Car entire orbital period of 5.54 yr. By using a new approach we find, as suggested in previous works, that collision winds blown by two stars can explain emission temporal behavior. Most 2-10 keV band results from shocked secondary wind. The observed rise just before minimum is due to increase density subsequent decrease radiative cooling time fast Absorption, particularly soft X-rays primary wind, increases approaches periastron shocks are produced deep inside However, absorption cannot account drastic minimum. 70 day assumed result collapse region onto star. This process shut down hence main source. show this assumption provides phenomenological description behavior around