Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1221a&link_type=abstract
American Astronomical Society, AAS Meeting #211, #12.21; Bulletin of the American Astronomical Society, Vol. 39, p.753
Astronomy and Astrophysics
Astronomy
Scientific paper
Thanks to the Optical Monitor (OM) on-board the XMM-Newton X-ray satellite, we obtained simultaneous optical/ultraviolet photometry and X-ray data for the XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST). We have obtained a catalogue of 2148 entries of which 1893 have 2MASS counterparts. Only 98 entries have, however, X-ray counterparts, of which 51 are known TMC members. Together with the OM catalogue of the TMC, we have investigated the optical/X-ray correlations of accreting and non-accreting stars. There is evidence that accreting stars are brighter in the U band than non-accreting stars, and have U-band excesses due to accretion. The OM/X-ray light curves show no evidence of correlation for accreting stars, suggesting that accretion is not a significant contributor to the X-ray emission of such young stars. In some cases, flares were detected in both X-ray and OM light curves and followed time properties typically seen in the Neupert effect (i.e., the X-ray flux is proportional to the integral of the optical flux).
M. A. acknowledges support from a Swiss National Science Foundation Professorship (PP002-110504).
Audard Marc
Bouvier Jerome
Briggs Keith
Grosso Nicolas
Güdel Manuel
No associations
LandOfFree
The XMM-Newton Optical Monitor Survey of the Taurus Molecular Cloud 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 The XMM-Newton Optical Monitor Survey of the Taurus Molecular Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The XMM-Newton Optical Monitor Survey of the Taurus Molecular Cloud will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1474857