Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-14T09:56:46.931Z Has data issue: false hasContentIssue false
  • English
  • Français

An Optical Search for Dwarf Novae in M22

Published online by Cambridge University Press:  09 August 2007

A.P. Hourihane ,
P.J. Callanan  and
A.M. Cool
A.P. Hourihane
Affiliation:
Department of Physics, University College Cork, Cork, Ireland. email: a.hourihane@ucc.ie, paulc@ucc.ie
P.J. Callanan
Affiliation:
Department of Physics, University College Cork, Cork, Ireland. email: a.hourihane@ucc.ie, paulc@ucc.ie
A.M. Cool
Affiliation:
Department of Physics and Astronomy, San Francisco State University, 1600 Holloway Avenue, San Francisco, CA 94132, USA email: cool@sfsu.edu
Rights & Permissions [Opens in a new window]

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 report on the results of our 2004 monitoring program of M22, designed to search for CVs undergoing dwarf nova (DN) eruptions. We wish to compare these globular cluster systems to similar ones in the field and determine if their different formation mechanisms result in different properties. We present a light curve for a CV candidate that went into outburst during May. Data were reduced with the ISIS image subtraction routine. Our ground-based results are consistent with previous HST measurements, and confirm the DN nature of the outburst. We also report on further attempts to apply the ISIS software to look for additional outbursts of this object during 2004 as well as to identify other variable candidates in the core of M22.

Keywords

stars: dwarf novaetechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 527 - 530
Copyright
Copyright © International Astronomical Union 2007

References

Alard, C. 2000, A&AS 144, 363 Google Scholar
Alard, C. & Lupton, R.H. 1998, ApJ 503, 325 CrossRefGoogle Scholar
Anderson, J., Cool, A.M. & King, I.R. 2003, ApJ 597, 137 CrossRefGoogle Scholar
Angelini, L. & Verbunt, F. 1989, MNRAS 238, 697 CrossRefGoogle Scholar
Bond, I.A., Abe, F., Eguchi, S., Furuta, Y., Hearnshaw, J.B., Kamiya, K., Kilmartin, P.M., Kurata, Y., Masuda, K., Matsubara, Y., and 11 coauthors 2005, ApJ, 620, 103 CrossRefGoogle Scholar
Grindlay, J.E., Cool, A.M., Callanan, P.J., Bailyn, C.D., Cohn, H.N. & Lugger, P.M. 1995, ApJ 455, 47 CrossRefGoogle Scholar
Hut, P. & Verbunt, F. 1983, Nature 301, 587 CrossRefGoogle Scholar
Ó, Tuairisg, S., Butler, R.F., Shearer, A., Redfern, R.M., Butler, D. & Penny, A. 2003, MNRAS 345, 960 Google Scholar
Sahu, K.C., Casertano, S., Livio, M., Gilliland, R.L., Panagia, N., Albrow, M.D. & Potter, M. 2001, Nature 411, 1022 CrossRefGoogle Scholar
Shara, M., Bergeron, L., Gilliland, R., Saha, A. & Petro, L. 1996, ApJ 471, 804 CrossRefGoogle Scholar
Webb, N.A., Serre, D., Gendre, B., Barret, D., Lasota, J.-P. & Rizzi, L. 2004, A&A, 424, 133 Google Scholar