Hostname: page-component-77c89778f8-cnmwb Total loading time: 0 Render date: 2024-07-20T02:54:32.213Z Has data issue: false hasContentIssue false
  • English
  • Français

Rapidly Evolving Light Curves of Low Mass X-Ray Binaries

Published online by Cambridge University Press:  22 February 2018

P. Muhli ,
P. J. Hakala ,
L. Hjalmarsdotter ,
D. C. Hannikainen  and
J. Schultz
P. Muhli
Affiliation:
Observatory, P.O.Box 14, FIN-00014 University Helsinki, Finland (panu.muhli@astro.helsinki.fi)
P. J. Hakala
Affiliation:
Observatory, P.O.Box 14, FIN-00014 University Helsinki, Finland (panu.muhli@astro.helsinki.fi)
L. Hjalmarsdotter
Affiliation:
Observatory, P.O.Box 14, FIN-00014 University Helsinki, Finland (panu.muhli@astro.helsinki.fi)
D. C. Hannikainen
Affiliation:
Observatory, P.O.Box 14, FIN-00014 University Helsinki, Finland (panu.muhli@astro.helsinki.fi)
J. Schultz
Affiliation:
Observatory, P.O.Box 14, FIN-00014 University Helsinki, Finland (panu.muhli@astro.helsinki.fi)

Extract

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.

A few Galactic Low Mass X-Ray Binaries (LMXBs) have shown drastically evolving X-ray and/or optical orbital light curves. In two short-period LMXBs, MS 1603+2600 (= UW CrB, Porb = 111 min) and 4U 1916-053 (see e.g. Homer et al. 2001), the variations in the light curve morphology seem to be repeating in a periodic manner. We present first results of a photometric monitoring campaign of MS 1603+2600, showing evidence of a 5-day superorbital period in this yet unclassified source. The observations also unraveled optical flares, reminiscent of type I bursts, suggesting a neutron star primary.

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 211
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

References

Hakala, P.J., et al. 1998, A&A, 333, 540 Google Scholar
Homer, L., et al. 2001, MNRAS, 322, 827 Google Scholar
Matsuoka, M. 1984, Ap.J, 283, 774 Google Scholar
Morris, S.L., et al. 1990, ApJ, 365, 686 Google Scholar
Mukai, K., et al. 2001, ApJ, 561, 938 Google Scholar
Pringle, J.E. 1996, MNRAS, 281, 357 Google Scholar