MUCHFUSS: Status and Highlights

Geier, S.; Kupfer, T.; Barlow, B. N.; Schaffenroth, V.; Furst, F.; Heuser, C.; Ziegerer, E.; Heber, U.; Marsh, T. R.; Maxted, P. F. L.; Ostensen, R. H.; O'Toole, S. J.; Gansicke, B. T.; Napiwotzki, R.

Abstract

The MUCHFUSS project aims at finding sdBs with massive compact companions. Here we report on the current status of our spectroscopic and photometric follow-up campaigns and present some highlight results. We derive orbital solutions of seven new sdB binaries and estimate the fraction of close substellar companions to sdBs. Finally, we present an ultracompact sdB+WD binary as possible progenitor of a thermonuclear supernova and connect it to the only known hypervelocity subdwarf star, which might be the donor remnant of such an event.

Citation

Geier, S., Kupfer, T., Barlow, B. N., Schaffenroth, V., Furst, F., Heuser, C., …Napiwotzki, R. (2014). MUCHFUSS: Status and Highlights.

• Conference Name: 6th Conference on Hot Subdwarf Stars and Related Objects
• Conference Location: Univ Arizona, Steward Observ, Tucson, AR, USA
• Start Date: May 19, 2013
• End Date: May 24, 2013
• Publication Date: 2014
• Deposit Date: Jun 16, 2023
• Volume: 481
• Pages: 243-251
• ISBN: 9781583818466
• Publisher URL: https://inspirehep.net/literature/1495132