Physics motto
View Edit History Print
Seminars»02.11.2017 - Şölen Balman : Accretion and Outflows in Accreting WD Binaries

02.11.2017 - Şölen Balman : Accretion and Outflows in Accreting WD Binaries

Accretion and Outflows in Accreting WD Binaries

Şölen Balman
METU Department of Physics, Ankara
02 November 2017, Thursday, 14:40
Cavid Erginsoy Seminar Room, Physics Department, 3rd floor

Abstract: Cataclysmic Variables (CVs), compact binaries with white dwarf (WD)   primaries, constitute laboratories to study accretion flows, gas   dynamics, outflows, transient outbursts, and explosive nuclear   burning under a variety of astrophysical plasma conditions.  CVs,   together with related accreting WD binaries, have been studied over   decades and are important for population studies of galactic X-ray   sources. However, recent space- and ground-based high resolution   spectral and timing studies, along with recent surveys indicate that   we still have observational and theoretical complexities yet to   answer. I will review briefly evolutionary aspects and concentrate on   diversity of dwarf nova outburst, the nova-like systems and the   optically thick-thin disk transition conditions, and the the disk   wind models. I will point out how accretion phase shapes the thermonuclear   eruptions on the surface of WD binaries and Nova evolution. Also,   I will discuss how flickering variability studies from optical to   X-rays can be probes to determine accretion history and indicate   the connection of time and spectral variability of CVs with LMXBs and AGNs.