Abstract Radio observations have shown that the emission from IC443 can be attributed to three, partially incomplete shells. The two smaller diameter shells are bright in X-rays, whereas the X-ray extent of the largest one has been discovered only recently in the ROSAT All-Sky-Survey. This new X-ray shell — G189.6+3.3 — is well explained by a separate old (∼ 105yr) supernova remnant (SNR), in contrast to the IC443 proper SNR, the age of which has been estimated to ∼ 103yr. Spatial structure of the X-ray absorption observed with ROSAT suggests that G189.6+3.3 is located in front of a molecular cloud while the two smaller subshells previously known as IC443 are behind it. This geometry is confirmed by the observation of an additional absorption ridge across IC443, which is produced by a shell of cool and dense matter associated with G189.6+3.3.


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    Titel :

    The structure of the IC443 supernova remnant complex derived from ROSAT and Ginga observations


    Beteiligte:
    Asaoka, I. (Autor:in) / Aschenbach, B. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 13 , 12 ; 277-280


    Erscheinungsdatum :

    1993-01-01


    Format / Umfang :

    4 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    The Structure of the IC443 Supernova Remnant Complex Derived from ROSAT and GINGA Observations

    Asaoka, I. / Aschenbach, B. / COSPAR | British Library Conference Proceedings | 1993


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    Bocchino, F. / Krassilchtchikov, A.M. / Kretschmar, P. et al. | Elsevier | 2007


    INTEGRAL observations of the SNR IC443 region

    Bocchino, F. | Online Contents | 2008


    INTEGRAL observations of the SNR IC443 region

    Bocchino, F. | Online Contents | 2008