Discovery of a radio supernova remnant and nonthermal X-rays coincident with the TeV source HESS J1813-178

C. L. Brogan, B. M. Gaensler, J. D. Gelfand, J. S. Lazendic, T. J.W. Lazio, N. E. Kassim, N. M. McClure-Griffiths

Research output: Contribution to journalArticleAcademicpeer-review

58 Citations (Scopus)

Abstract

We present the discovery of nonthermal radio and X-ray emission positionally coincident with the TeV gammaray source HESS J1813-178. We demonstrate that the nonthermal 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 nonthermal and is consistent with either an SNR shell or unidentified pulsar or pulsar wind nebula origin; pulsed emission is not detected in archival ASCA data. A simple synchrotron plus 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 μG)]-05 TeV. Further observations are needed in order to confirm that the broadband emission has a common origin and to better constrain the X-ray spectrum.

Original languageEnglish
Pages (from-to)L105-L108
JournalAstrophysical Journal
Volume629
Issue number2 II
DOIs
Publication statusPublished - 20 Aug 2005
Externally publishedYes

Keywords

  • Acceleration of particles
  • ISM: individual (G12.8-0.0, HESS J1813-178)
  • Radio lines: ISM
  • Supernova remnants
  • X-rays: ISM

Fingerprint Dive into the research topics of 'Discovery of a radio supernova remnant and nonthermal X-rays coincident with the TeV source HESS J1813-178'. Together they form a unique fingerprint.

Cite this