We observed twenty-eight Seyfert 2 galaxies with the Japanese X-ray satellite, Ginga, and found Seyfert 2 galaxies, in general, have the X-ray spectral characteristics of obscured Seyfert 1 nuclei. This results agrees with the predictions from the Unified Seyfert model proposed by Antonucci and Miller. However, among the observed Seyfert 2 galaxies, there are a few galaxies with no evidence of an obscuration, contrary to the general predictions of the unified model. We note that type 2 active galactic nuclei (AGN) will contribute to the Cosmic Diffuse X-ray Background, if the unified Seyfert model can be extended to the far distant AGN such as quasars.


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    Title :

    Ginga observations of Seyfert galaxies


    Contributors:
    Awaki, H. (author) / Koyama, K. (author)

    Published in:

    Publication date :

    1993-12-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Ginga observations of Seyfert galaxies

    Awaki, H. / Koyama, K. | Elsevier | 1993


    GINGA Observations of Seyfert Galaxies

    Awaki, H. / Koyama, K. / COSPAR | British Library Conference Proceedings | 1993


    GINGA Observations of Seyfert Galaxies

    Awaki, H. | Online Contents | 1993


    BBXRT and GINGA Observations of AGN

    Done, C. | Online Contents | 1993


    BBXRT and GINGA Observations of AGN

    Done, C. / COSPAR | British Library Conference Proceedings | 1993