SIMBAD references

2005MNRAS.356..125B - Mon. Not. R. Astron. Soc., 356, 125-130 (2005/January-1)

The 2003 radio outburst of a new X-ray transient: XTE J1720-318.

BROCKSOPP C., CORBEL S., FENDER R.P., RUPEN M., SAULT R., TINGAY S.J., HANNIKAINEN D. and O'BRIEN K.

Abstract (from CDS):

We present radio observations of the black hole X-ray transient XTE J1720-318, which was discovered in 2003 January as it entered an outburst. We analyse the radio data in the context of the X-ray outburst and the broad-band spectrum. An unresolved radio source was detected during the rising phase, reaching a peak of nearly 5 mJy approximately coincident with the peak of the X-ray light curve. A study of the spectral indices suggests that at least two ejection events took place, with the radio-emitting material expanding and becoming optically thin as it faded. The broad-band spectra suggested that the accretion disc dominated the emission, as expected for a source in a soft state. The radio emission decayed to below the sensitivity of the telescopes for ∼6 weeks but switched on again during the transition of the X-ray source to the low/hard state. At least one `glitch' was superimposed on the otherwise exponential decay of the X-ray light curve, which was reminiscent of the multiple jet ejections of XTE J1859+226. We also present a Ks-band image of XTE J1720-318 and its surrounding field taken with the Very Large Telescope.

Abstract Copyright: 2004 RAS

Journal keyword(s): accretion, accretion discs - stars: individual: XTE J1720-318 - radio continuum: stars - X-rays: binaries

CDS comments: P. 129, XTE J1500-264 is a misprint for XTE J1550-564.

Simbad objects: 12

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2021.06.12-20:50:44

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