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Discovery of a Radio Supernova Remnant and Non-thermal X-rays Coincident with the TeV Source HESS J1813-178 | | C. L. Brogan
; B. M. Gaensler
; J. D. Gelfand
; J. S. Lazendic
; T. J. Lazio
; N. E. Kassim
; N. M. McClure-Griffiths
; | | Date: |
8 May 2005 | | Journal: | Astrophys.J. 629 (2005) L105-L108 | | Subject: | astro-ph | | Abstract: | We present the discovery of non-thermal radio and X-ray emission positionally coincident with the TeV $gamma$-ray source HESS J1813--178. We demonstrate that the non-thermal radio emission is due to a young shell-type supernova remnant (SNR) G12.8--0.0, and constrain its distance to be greater than 4 kpc. The X-ray emission is primarily non-thermal and is consistent with either an SNR shell or unidentified pulsar/pulsar wind nebula origin; pulsed emission is not detected in archival ASCA data. A simple synchrotron+inverse Compton model for the broadband emission assuming that all of the emission arises from the SNR shell implies maximum energies of $(30-450)(B/10 microG)^{-0.5}$ TeV. Further observations are needed to confirm that the broadband emission has a common origin and better constrain the X-ray spectrum. | | Source: | arXiv, astro-ph/0505145 | | Services: | Forum | Review | PDF | Favorites | |
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