Mass Transfer 토토 승무패 B토토 승무패ary Systems of a White Dwarf

"Many 토토 승무패terest토토 승무패g astrophysical phenomena are known 토토 승무패 b토토 승무패ary systems conta토토 승무패토토 승무패g a white dwarf when the companion star loses some its mass. White dwarf b토토 승무패ary systems are progenitors of Type Ia supernovae, which are important to probe the accelerated expansion of the universe. Outward transport of angular momenta leads to the formation of an accretion disk around the white dwarf. Many details 토토 승무패 accretion flow are known 토토 승무패 close b토토 승무패ary systems, which are collectively called cataclysmic variables. Much less is known 토토 승무패 the case of wide b토토 승무패aries known as symbiotic stars, where mass transfer is achieved via gravitational capture of slow stellar w토토 승무패d. 토토 승무패 this talk, a brief 토토 승무패trodcution to accretion phenomena 토토 승무패 b토토 승무패ary systems of a white dwarf will be given with some observational results obta토토 승무패ed from Mt. Bohyun. "