Hostname: page-component-745bb68f8f-hvd4g Total loading time: 0 Render date: 2025-02-05T01:20:43.176Z Has data issue: false hasContentIssue false
  • English
  • Français

Double-radial-mode SX Phoenicis stars in the globular clusters NGC 5466 and M71

Published online by Cambridge University Press:  12 April 2016

Young-Beom Jeon ,
Myung Gyoon Lee ,
Seung-Lee Kim  and
Ho Lee
Young-Beom Jeon
Affiliation:
Korea Astronomy Observatory, Daejeon, 305-348, Korea
Myung Gyoon Lee
Affiliation:
Astronomy Program, SEES, Seoul National University, Seoul, 151-742, Korea
Seung-Lee Kim
Affiliation:
Korea Astronomy Observatory, Daejeon, 305-348, Korea
Ho Lee
Affiliation:
Department of Earth Science Education, Korea National University of Education, Choongbuk, 363-791, Korea

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.

Through time-series CCD photometry of the globular cluster NGC 5466, we found three double-radial-mode SX Phe stars, all of which are consistent with the theoretical period ratio of the first overtone mode to the fundamental mode (P1H/PF); their period ratios are 0.7825, 0.7826 and 0.7919, respectively. We also detected a double-radial-mode SX Phe star in M71. Its period ratio is 0.781, which is also consistent with the theoretical value.

Type
Part 3. Variable stars as tracers of different stellar populations – galactic and globular clusters, LMC/SMC and Local Group galaxies
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 166 - 170
Copyright
Copyright © Astronomical Society of the Pacific 2004

References

Gilliland, R.L., Bono, G., Edmonds, P.D., Caputo, F., Cassisi, S., Petro, L.D., Saha, A., Shara, M.M. 1998 ApJ, 507, 818 Google Scholar
Gilliland, R.L., Brown, T.M. 1988 PASP, 100, 754 Google Scholar
Harris, H.C. 1996 AJ, 112, 1487 (http://physun.physics.mcmaster.ca/Globular.html; revised 2003 February)Google Scholar
Jeon, Y.-B., Lee, M.G., Kim, S.-L., Lee, H. 2003a, AJ, 125, 3165 Google Scholar
Jeon, Y.-B., Lee, M.G., Kim, S.-L., Lee, H. 2003b, AJ, submittedGoogle Scholar
Nemec, J., Harris, H.C. 1987 ApJ, 316, 172 Google Scholar
Pych, W., Kaluzny, J., Krzeminski, W., Schwarzenberg-Czerny, A., Thompson, I.B. 2001 A&A, 367, 148 Google Scholar
Santolamazza, P., Marconi, M., Bono, G., Caputo, F., Cassisi, S., Gilliland, R.L. 2001 ApJ, 554, 1124 Google Scholar
Templeton, M., Basu, S., Demarque, P. 2002 ApJ, 576, 963 Google Scholar