Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21538508a&link_type=abstract
American Astronomical Society, AAS Meeting #215, #385.08; Bulletin of the American Astronomical Society, Vol. 42, p.601
Astronomy and Astrophysics
Astrophysics
Scientific paper
The star V838 Mon, discovered undergoing an outburst at the beginning of January 2002, is one of the most enigmatic objects observed in stellar astrophysics in recent decades.
We report the XMM-Newton/EPIC detection in 2008 March of a pair of spatially confused X-ray sources in the vicinity of V838 Mon. Spectral/spatial analysis demonstrates
the presence of a relatively hard, luminous source that is spatially coincident with V838 Mon itself, and a second, more luminous source located 8'' south of V838 Mon (projected separation 0.2pc if at the 6 kpc distance of V838 Mon). Neither source was detected in a Chandra/ACIS-S observation obtained about one year after outburst. The inferred X-ray luminosity and temperature of the hard source component at the position of V838 Mon, as well as its delayed appearance, appear consistent with a
stellar merger scenario for the optical/IR outburst of V838 Mon. Further X-ray observations of V838 Mon are warranted, to confirm the position(s) of the source(s) in the vicinity of V838 Mon and to establish their long- and short-term temporal behavior.This research has been supported via NASA/GSFC XMM/Newton Guest Observer Facility grant NNX08AD91G to RIT (and associated subcontracts to STScI and the University of Arizona).
Antonini Fabio
Bond Howard E.
Kastner Jason
Montez Rodolfo Jr.
Soker Noam
No associations
LandOfFree
XMM-Newton Detection of a Delayed X-ray Eruption from V838 Monocerotis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with XMM-Newton Detection of a Delayed X-ray Eruption from V838 Monocerotis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and XMM-Newton Detection of a Delayed X-ray Eruption from V838 Monocerotis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-964328