Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20915801w&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #158.01; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
Nearly 30 years after the discovery of X-ray emission from OB stars, the exact mechanisms responsible remain a mystery. However, major advances in our understanding of such emission have been made since the launch of the Chandra X-ray Observatory in 1999 and the subsequent availability of high-resolution transmission grating spectra of numerous hot stars. To facilitate the rapid comparison and characterization of hot star spectra, we are compiling a database of all O, B and Wolf-Rayet stars observed with Chandra's High Energy Transmission Grating (HETG). This database, known as Xatlas, will be accessible through a web interface with searching and interactive plotting capabilities. In addition to high-resolution HETG data, Xatlas will also feature simulations of the low-resolution ACIS-S and ACIS-I spectra convolved from the high-resolution spectra for each target, potentially enabling further scientific analysis of the low-resolution spectra of the hot stars in existing Chandra images. Currently slated for release in the first quarter of 2007, Xatlas will initially offer 55 observations of over 25 hot stars and provide a practical and user-friendly resource for the astronomical community.
Funding for this work was provided by Chandra Grants GO5-6006 and GO5-6006A and Chandra X-ray Center NASA Contract NAS8-39073.
Kashyap Vinay L.
Mendygral Peter J.
Nichols Jonathan
Remage Evans Nancy
Waldron Wayne L.
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