AAS 201st Meeting, January, 2003
Session 20. Star Formation I
Poster, Monday, January 6, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[20.12] Chandra X-Ray Observations of the W3 Region

H.J. Delgado-Marti (University of Puerto Rico, Rio Piedras Campus), P. Hofner (University of Puerto Rico, Rio Piedras Campus & Arecibo Observatory), A. Watson (Universidad Nacional Autonoma de Mexico, Morelia), E. Churchwell (University of Wisconsin), B. Whitney (Space Science Institute)

W3 is a well known, but complex, star forming region located at around 2.3 kpc. The high resolution and the great positional accuracy of the Chandra X-ray telescope allowed us to identify the X-ray emission in W3 as 236 distinct X-ray point sources with significant (>7 cts) emission within the field of view. Around 101 of these point sources are located near the W3 core. Here we present an analysis of the X-ray properties of the W3 region, including variability and spectroscopy. The X-ray light curves show significant variability on different time-scales and we have detected a few sources which exhibit flaring behavior. We have studied the spectra of the brightest sources and found that these are consistent with an absorbed thermal plasma. We also have used new NIR data covering the entire W3 core to identify infrared sources with their X-ray counterparts. This research was funded in part by Research Corporation grant CC 4996 and NSF grant AST-0098524.

The author(s) of this abstract have provided an email address for comments about the abstract: hdelgado@alum.mit.edu

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Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.