The X-Ray Emission of Composite Galaxies

Details The X-Ray Emission of Composite Galaxies The X-Ray Emission of Composite Galaxies

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..676z&link_type=abstract

Chandra Proposal ID #02700851

Computer Science

Chandra Proposal Id #02700851

Scientific paper

We propose to observe 2 low-redshift galaxies classified as HII/Seyfert-2 composites, as their optical spectra have the characteristics of star-forming galaxies and very weak signatures of AGN activity. However their high X-ray luminosities (Lx 10^{42-43} erg/s) are typical of broad-line AGN. These objects are considered as nearby examples of the NELGS detected in deep surveys which produce a large fraction of the X-ray background. The Chandra observations will allows us to check whether our objects a) host a powerful point-like source and thus harbour a 'naked' AGN (with a weak or absent broad-line region) or a heavily obscured AGN or b) have extended X-ray emission and thus are among the most powerful star-forming galaxies in the Universe similar to those found at high redshifts.

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