Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-26T19:20:56.515Z Has data issue: false hasContentIssue false
  • English
  • Français

Binarity and Cluster Membership of ClassicalCepheids

Published online by Cambridge University Press:  15 February 2011

C. Turon ,
F. Meynadier ,
F. Arenou ,
L. Szabados ,
Z.T. Kiss  and
P. Klagyivik
L. Szabados
Affiliation:
Konkoly Observatory of the Hungarian Academy of Sciences, Budapest, Hungary
Z.T. Kiss
Affiliation:
Konkoly Observatory of the Hungarian Academy of Sciences, Budapest, Hungary
P. Klagyivik
Affiliation:
Konkoly Observatory of the Hungarian Academy of Sciences, Budapest, Hungary
Get access

Abstract

Companions exert adverse effects on the relationships valid for Cepheids. Physicalcompanions may also cause observable effects (e.g., phase jump in thepulsation, slight excitation of non-radial modes). Many new binaries among Cepheids can berevealed by using radial velocity measurements to be made by Gaia and by derivingastrometric orbit from data to be obtained over the five years of the Gaia mission.

Cluster membership of Cepheids also facilitates the calibration of the period-luminosityrelationship independently of the pulsation. A brief summary on the membership of Cepheidsin clusters is also given.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 45: GAIA: At the Frontiers of Astrometry , 2010 , pp. 441 - 444
Copyright
© EAS, EDP Sciences 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Références

Gieren, W.P., Fouqué, P., & Gómez, M., 1998, ApJ, 496, 17 CrossRef
Moskalik, P., & Kołaczkowski, Z., 2009, MNRAS, 394, 1649 CrossRef
Szabados, L., 1997 in “Hipparcos - Venice ’97”, ESA SP-402, 657
Szabados, L., 2003, IBVS, 5394
Turner, D.G., Savoy, J., Derrah, J., et al., 2005, PASP, 117, 207 CrossRef