Can low—metallicity binaries avoid merging?

S.E. de Mink, M. Cottaar, O.R. Pols

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Rapid mass transfer in a binary system can drive the accreting star out of thermal equilibrium, causing it to expand. This can lead to a contact system, strong mass loss from the system and possibly merging of the two stars. In low metallicity stars the timescale for heat transport is shorter due to the lower opacity. The accreting star can therefore restore thermal equilibrium more quickly and possibly avoid contact.We investigate the effect of accretion onto main sequence stars with radiative envelopes with different metallicities. We find that a low metallicity (Z
Original languageUndefined/Unknown
Title of host publicationFIRST STARS III: First Stars II Conference, Santa Fe (New Mexico)
EditorsB.W. O'Shea, A. Heger, T. Abel
Place of PublicationMelville, New York
PublisherAmerican Institute of Physics
Pages217-219
Number of pages3
Publication statusPublished - 15 Jul 2007

Bibliographical note

First Stars II Conference

Cite this