Detection of X-ray Emission from Galaxies Inside and Towards the Nearby Voids

Details Detection of X-ray Emission from Galaxies Inside and Towards the Nearby Voids Detection of X-ray Emission from Galaxies Inside and Towards the Nearby Voids

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jkas...38....1k&link_type=abstract

Journal of the Korean Astronomical Society, vol. 38, no. 1, pp. 1-6

Astronomy and Astrophysics

Astronomy

1

Galaxies: Active, Galaxies: Seyfert, X-Rays: Galaxies, Galaxies: Structure

Scientific paper

We searched for X-ray emission from the 665 galaxies inside and towards the nearby voids by analyzing the ROSAT All-Sky Survey (RASS) data as well as the ROSAT pointed observations (PSPC). As a result we have detected six X-ray emitting galaxies. Two (UGC~10205 and NGC~7509) are in the high density region in the local void, three (UGC~749, MCG~+11-10-073, and Mrk~464) are towards the nearby voids, and UGC~32 is located in the low density region. We carried out a timing analysis for both Mrk~464 and UGC~32, and a spectral analysis for Mrk~464. The light curve of Mrk~464 shows the possibility of periodic X-ray flux variation and UGC~32 shows weak, but rapid variation.

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