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    Discovery of an extended X-ray jet in AP librae

    Access Status
    Fulltext not available
    Authors
    Kaufmann, S.
    Wagner, S.
    Tibolla, Omar
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Kaufmann, S. and Wagner, S. and Tibolla, O. 2013. Discovery of an extended X-ray jet in AP librae. Astrophysical Journal. 776 (2): pp. 1-7.
    Source Title
    Astrophysical Journal
    Additional URLs
    http://iopscience.iop.org/0004-637X/776/2/68/
    ISSN
    0004-637X
    URI
    http://hdl.handle.net/20.500.11937/40988
    Collection
    • Curtin Research Publications
    Abstract

    Chandra observations of the low-energy-peaked BL Lac object (LBL) AP Librae (AP Lib) revealed the clear discovery of a non-thermal X-ray jet. AP Lib is the first LBL with an extended non-thermal X-ray jet that shows emission into the very high energy range. The X-ray jet has an extension of ~15''(˜ 14 kpc). The X-ray jet morphology is similar to the radio jet observed with Very Large Array at 1.36 GHz emerging in the southeast direction and bends by 50° at a distance of 12'' toward the northeast. The intensity profiles of the X-ray emission studied are consistent with those found in the radio range. The spectral analysis reveals that the X-ray spectra of the core and jet region are both inverse-Compton-(IC)-dominated. This adds to a still small sample of BL Lac objects whose X-ray jets are IC-dominated and thus more similar to the high-luminosity Fanaroff-Riley II sources than to the low-luminosity Fanaroff-Riley I objects, which are usually considered to be the parent population of BL Lac objects.

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