Asteroseismology of O-type Hot Subdwarf stars

Details Asteroseismology of O-type Hot Subdwarf stars Asteroseismology of O-type Hot Subdwarf stars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006lnea....2..167r&link_type=abstract

Lecture Notes and Essays in Astrophysics, vol. 2, p. 167-178.

Astronomy and Astrophysics

Astrophysics

4

Asteroseismology, Hot Subdwarf Stars, Sdo Stars

Scientific paper

An asteroseismological study of sdO stars is presented. The study comprises two aspects: observationally we look for oscillations and theoretically we explore the possibility of finding excited modes in sdO stars. Out of 78 sdO stars that we have observed to search for oscillations, 2 show evidence for pulsations well above the 3σ level and need follow-up observations to confirm variability. Only 1 of 20 sdO stellar evolution models analyzed with a non-adiabatic pulsation code was found to have unstable modes. The κ-mechanism associated with an iron opacity bump is responsible for driving the pulsations. This is the same mechanism as is believed responsible for driving oscillations in long and short period sdB variables.

Affiliated with

Also associated with

No associations

Rating

Asteroseismology of O-type Hot Subdwarf stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Asteroseismology of O-type Hot Subdwarf stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asteroseismology of O-type Hot Subdwarf stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1548204