SIMBAD references

1997A&A...324..941C - Astronomy and Astrophysics, volume 324941-942 (1997/8-3)

X-ray variability in the quiescent state of Centaurus X-4.

CAMPANA S., MEREGHETTI S., STELLA L. and COLPI M.

Abstract (from CDS):

We report on a ROSAT-HRI observation of the soft X-ray transient Cen X-4 during quiescence. We discover a variation in the flux by a factor of 3 in less than four days. This relatively fast variation, the first observed from a quiescent soft X-ray transient, rules out some of the emission mechanisms that have been proposed for the quiescent flux. Accretion either onto the neutron star surface or onto the magnetospheric boundary is clearly favored.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: Cen X-4 - X-ray: stars

Simbad objects: 1

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