| Issue |
A&A
Volume 495, Number 1, February III 2009
|
|
|---|---|---|
| Page(s) | 243 - 248 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:200810238 | |
| Published online | 14 January 2009 | |
Evolution of long-period, white-dwarf binaries: application to GRO J1744-28 and type Ia supernovae
Department of Astronomy, Nanjing University, Nanjing 210093, PR China e-mail: cruxuxj@gmail.com; lixd@nju.edu.cn
Received:
22
May
2008
Accepted:
13
November
2008
We calculated the evolution of long-period white dwarf binaries, by accounting for thermally unstable accretion during mass transfer. Under certain conditions we found that, the accretion rates onto the white dwarf during dwarf nova outbursts can be sufficiently high to allow steady nuclear burning of the accreted matter and growth of the white dwarf mass. If the Chandrasekhar mass is reached, the white dwarf may collapse to be a neutron star, or explode as a type Ia supernova. This scenario appears to account well for the formation of the bursting pulsar GRO J1744-28, and probably type Ia supernovae with delay times considerably longer than 1 Gyr.
Key words: accretion, accretion disks / stars: dwarf novae / stars: pulsars: individual: GRO J1744-28 / stars: supernovae: general
© ESO, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.