Hostname: page-component-7bb8b95d7b-cx56b Total loading time: 0 Render date: 2024-09-07T17:14:36.249Z Has data issue: false hasContentIssue false
  • English
  • Français

Identifying Modes in a Pulsating sdB (EC 14026) Star

Published online by Cambridge University Press:  12 April 2016

M.D. Reed  and
the Whole Earth Telescope Xcov 17 and 21 teams
M.D. Reed
Affiliation:
Southwest Missouri State University, Department of Physics, Astronomy, and Material Science, Sprintfield, MO, 65804, e-mail:mdr131f@smsu.edu

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present a preliminary analysis of time series photometry on the pulsating subdwarf B star PG 1336-018 acquired as part of two Whole Earth Telescope runs. PG 1336-018 is a multi-mode pulsator with at least 15 periods centered around 175 seconds. It is also an HW Vir-type eclipsing binary with a period of 2.4 hours. Although over 20 pulsating subdwarf B stars have been discovered, only a few have resolved temporal spectra and still fewer have identified pulsation modes. We analyze features unique to the eclipsing binary system of PG 1336-018 as a means of identifying pulsation modes.

Type
Part 2.5. Pulsations in Compact Objects
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 368 - 371
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Green, E.M., Liebert, J., & Saffer, R.A. 2001, in ASP Conf. Ser., Vol. 226, On The Origin of Subdwarf B Stars and Related Metal-Rich Binaries, eds. Provencal, J. et al., (San Francisco ASP), 192 Google Scholar
Kawaler, S.D 1999, in ASP Conf. Ser., Vol. 169, 11th European Workshop on White Dwarfs, eds. Solheim, S.-E. & Meistas, E., (San Francisco ASP), 158 Google Scholar
Kilkenny, D., et al. 1998, MNRAS, 296, 329 Google Scholar
Reed, M.D., et al. 2000, BaltA, 9, 211 Google Scholar
Reed, M.D., Kawaler, S.D., & Kleinman, S.J. 2001, in ASP Conf. Ser., Vol. 226, On The Origin of Subdwarf B Stars and Related Metal-Rich Binaries, eds. Provencal, J. et al., (San Francisco ASP), 181 Google Scholar