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The Astrophysical Journal, 635:L000L000, 2005 December 10 2005. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary: L000
The Astrophysical Journal, 635:L000­L000, 2005 December 10
2005. The American Astronomical Society. All rights reserved. Printed in U.S.A.
X-RAY SPECTRAL VARIABILITY DURING AN OUTBURST IN V1118 ORI
M. Audard,1
M. Gu¨del,2
S. L. Skinner,3
K. R. Briggs,2
F. M. Walter,4
G. Stringfellow,3
R. T. Hamilton,5
and E. F. Guinan5
Received 2005 August 25; accepted 2005 October 31; published 2005 November XX
ABSTRACT
We present results from a multiwavelength campaign to monitor the 2005 outburst of the low-mass young star
V1118 Ori. Although our campaign covers the X-ray, optical, infrared, and radio regimes, we focus in this Letter
on the properties of the X-ray emission in V1118 Ori during the first few months after the optical outburst. Chandra
and XMM-Newton detected V1118 Ori at three epochs in early 2005. The X-ray flux and luminosity stayed similar
within a factor of 2 and at the same level as in a preoutburst observation in 2002. The hydrogen column density
showed no evidence for variation from its modest preoutburst value of cm 2

  

Source: Audard, Marc - INTEGRAL Science Data Centre & Observatory of Geneva, Université de Genève

 

Collections: Physics