Results from recent time-series photometric studies of pulsating extremely low-mass white dwarfs.
Abstract
Extremely low-mass (ELM; < 0.25 M⊙) white dwarfs form from post-main sequence common envelope mass transfer, leaving them with helium cores and hydrogen atmospheres. As they cool, they pulsate in an extension of the DAV (hydrogen-atmosphere variable) instability strip as ELM white dwarf pulsators. We present a synopsis of all pulsating ELM white dwarfs known to date and highlight recent findings from our time-series analyses.
- Publication:
-
American Astronomical Society Meeting Abstracts #225
- Pub Date:
- January 2015
- Bibcode:
- 2015AAS...22534312B