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Radio and X-Ray Observations of the 1998 Outburst of the Recurrent X-Ray Transient 4U 1630-47
Citation
Hjellming, RM and Rupen, MP and Mioduszewski, AJ and Kuulkers, E and McCollough, M and Harmon, BA and Buxton, M and Sood, R and Tzioumis, A and Rayner, DP and Dieters, S and Durouchoux, P, Radio and X-Ray Observations of the 1998 Outburst of the Recurrent X-Ray Transient 4U 1630-47, The Astrophysical Journal, 514, (1) pp. 383-387. ISSN 0004-637X (1999) [Refereed Article]
DOI: doi:10.1086/306948
Abstract
We report radio (NRAO VLA and Australia Telescope Compact Array), soft X-ray (Rossi X-Ray Timing Explorer ASM), and hard X-ray (Compton Gamma Ray Observatory BATSE) observations of a 1998 outburst in the recurring X-ray transient 4U 1630-47, where radio emission was detected for the first time. The radio observations identify the position of 4U 1630-47 to within 1″. Because the radio emission is optically thin with a spectral index of ∼-0.8 during the rise, peak, and decay of the initial radio event, the emission is probably coming from an optically thin radio jet ejected over a period of time. The 20-100 keV emission first appeared 1998 January 28 (MJD 50841), the 2-12 keV emission first appeared 1998 February 3 (MJD 50847), and the first radio emission was detected 1998 February 12.6 (MJD 50856.6). The rise of the radio emission probably began about 1998 February 7 (MJD 50851) when the X-rays were in a very hard fluctuating-hardness state, just before changing to a softer, more stable hardness state.
Item Details
Item Type: | Refereed Article |
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Research Division: | Physical Sciences |
Research Group: | Astronomical sciences |
Research Field: | Galactic astronomy |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the physical sciences |
UTAS Author: | Rayner, DP (Mr David Peter Rayner) |
UTAS Author: | Dieters, S (Dr Stefan Dieters) |
ID Code: | 16851 |
Year Published: | 1999 |
Web of Science® Times Cited: | 41 |
Deposited By: | Physics |
Deposited On: | 1999-08-01 |
Last Modified: | 2012-03-13 |
Downloads: | 0 |
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