ROSAT All-Sky Survey observations of IRAS galaxies

Free access article

Issue		Astron. Astrophys. Suppl. Ser. Volume 129, Number 1, April I 1998


Page(s)		87 - 145
DOI		http://dx.doi.org/10.1051/aas:1998397

DOI: 10.1051/aas:1998397

A&A Supplement series, Vol. 129, APRIL I 1998, 87-145

Received June 9; accepted September 16, 1997

I. Soft X-ray and far-infrared properties

Th. Boller, F. Bertoldi, M. Dennefeld, and W. Voges

Send offprint request: Th. Boller

Max-Planck-Institut für Extraterrestrische Physik, D-85748 Garching, Germany
Institute d'Astrophysique (IAP), 98 bis boulevard-Arago, F-75014 Paris, France

Abstract:

The 120 000 X-ray sources detected in the RASS II processing of the ROSAT All-Sky Survey are correlated with the 14 315 IRAS galaxies selected from the IRAS Point Source Catalogue: 372 IRAS galaxies show X-ray emission within a distance of 100 arcsec from the infrared position. By inspecting the structure of the
X-ray emission in overlays on optical images we quantify the likelihood that the X-rays originate from the IRAS galaxy. For 197 objects the soft X-ray emission is very likely associated with the IRAS galaxy. Their soft X-ray properties are determined and compared with their far-infrared emission. X-ray contour plots overlaid on Palomar Digitized Sky Survey images are given for each of the 372 potential identifications. All images and tables displayed here are also available in electronic form.

keywords: galaxies: general -- galaxies: active -- galaxies: Seyfert -- X-rays: galaxies

SIMBAD Objects

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