Discovery of an extended X-ray jet in AP Librae
Sep 26, 20137 pages
Published in:
- Astrophys.J. 776 (2013) 68
- Published: Sep 27, 2013
e-Print:
- 1309.6893 [astro-ph.HE]
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Abstract: (IOP)
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.Note:
- accepted on July 24, 2013 for publication in ApJ (version pre-proof corrections)
- X-rays: galaxies
- galaxies: jets
- galaxies: active
- BL Lacertae objects: individual (AP Lib)
- X-ray: emission
- luminosity: high
- energy: low
- spectral
- VHE
References(36)
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