Diffuse X-Ray Emission from the Hot ISM in Nearby Spiral Galaxies

Details Diffuse X-Ray Emission from the Hot ISM in Nearby Spiral Galaxies Diffuse X-Ray Emission from the Hot ISM in Nearby Spiral Galaxies

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1249s&link_type=abstract

Chandra Proposal ID #04600854

Mathematics

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Chandra Proposal Id #04600854

Scientific paper

We propose 100-ks observations of two nearby face-on galaxies with the ACIS S3 chip to measure the X-ray emission from their hot ISM. We have selected NGC 3631 and NGC 3938 because of their relatively high star formation rates. Our primary goal is to characterize the spatial distribution and spectral characteristics of the hot interstellar plasma in spiral galaxies similar to the Milky Way. The CXO angular resolution allows us to separate diffuse and point source emission, and the ACIS spectral resolution allows us to find the temperature and abundance parameters of the hot ISM. Other goals are to better understand the diffuse X-ray emission seen in some edge-on galaxy halos, to study the point sources in the galactic disk, and to study the cosmological diffuse background below 0.5 keV.

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