Abstract ROSAT All Sky Survey observations of IRAS galaxies have revealed up to now a number of 10 optically non-Seyfert galaxies with X-ray (0.1–2.4) luminosities up to a few 1043 erg · s −1 (Boller et al. 1992). The sources are brighter than previous detection limits of a few 1041 erg · s −1 as found by Stocke et al. (1991) or Green, Anderson and Ward (1992) for Einstein sources. The optical classification is based on follow-up observations which indicate clearly the non-Seyfert (LINER and HII region-like galaxies) nature. Our investigations reveal that galaxies classified as non-Seyferts on the basis of optical spectroscopy may reach exceptionally high X-ray luminosities which are similar to that of Seyfert galaxies. On the basis of the present observational material we suppose a hidden low luminosity AGN in the centre of these objects as the source of energy production. The objects are of interest when evaluating starburst versus central activity.


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    Title :

    Extreme starburst or central activity in X-ray luminous IRAS galaxies


    Contributors:
    Boller, Th. (author) / Dennefeld, M. (author) / Fink, H. (author) / Meurs, E.J.A. (author)

    Published in:

    Advances in Space Research ; 13 , 12 ; 287-290


    Publication date :

    1993-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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