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Title: X-ray and radio observations of RX J1826.2-1450/LS 5039
Author: Ribó Gomis, Marc
Reig, P.
Martí Ribas, Josep
Paredes i Poy, Josep Maria
Keywords: Estels
Estels binaris de raigs X
X-ray binaries
Radio astronomy
Issue Date: 1999
Publisher: Springer Verlag
Abstract: RX J1826.2-1450/LS 5039 has been recently proposed to be a radio emitting high mass X-ray binary. In this paper, we present an analysis of its X-ray timing and spectroscopic properties using different instruments on board the RXTE satellite. The timing analysis indicates the absence of pulsed or periodic emission on time scales of 0.02-2000 s and 2-200 d, respectively. The source spectrum is well represented by a power-law model, plus a Gaussian component describing a strong iron line at 6.6 keV. Significant emission is seen up to 30 keV, and no exponential cut-off at high energy is required. We also study the radio properties of the system according to the GBI-NASA Monitoring Program. RX J1826.2-1450/LS 5039 continues to display moderate radio variability with a clearly non-thermal spectral index. No strong radio outbursts have been detected after several months.
Note: Versió postprint del document publicat en paper
It is part of: Astronomy and Astrophysics, 1999, vol. 347, p. 518-523
ISSN: 0004-6361
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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