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Astrophysics and Space Science

, Volume 239, Issue 1, pp 113–119 | Cite as

The hard X-ray transient 4U 0115+63 in quiescence

  • S. Campana
Article

Abstract

We review the properties of the hard transient 4U 0115+63 in outburst as well as during quiescence. 4U 0115+63 is one of the few sources in which a sharp decrease of the X-ray flux at the end of an outburst has been observed, testifying to the action of the centrifugal barrier. Here we discuss explicitly the available upper limit on the X-ray luminosity during the quiescent phase to suggest that 4U 0115+63 is likely in the “propeller” regime.

Keywords

Sharp Decrease Centrifugal Barrier Quiescent Phase 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • S. Campana
    • 1
  1. 1.Osservatorio Astronomico di BreraMerate (Lc)Italy

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