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

doi:10.1086/491471

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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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 language	English
Pages (from-to)	L105-L108
Journal	Astrophysical Journal
Volume	629
Issue number	2 II
DOIs	https://doi.org/10.1086/491471
Publication status	Published - 20 Aug 2005
Externally published	Yes

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@article{e21245c282714e5d89512b8632962c5f,

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

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.",

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

author = "Brogan, {C. L.} and Gaensler, {B. M.} and Gelfand, {J. D.} and Lazendic, {J. S.} and Lazio, {T. J.W.} and Kassim, {N. E.} and McClure-Griffiths, {N. M.}",

year = "2005",

month = aug,

day = "20",

doi = "10.1086/491471",

language = "English",

volume = "629",

pages = "L105--L108",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2 II",

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TY - JOUR

T1 - Discovery of a radio supernova remnant and nonthermal X-rays coincident with the TeV source HESS J1813-178

AU - Brogan, C. L.

AU - Gaensler, B. M.

AU - Gelfand, J. D.

AU - Lazendic, J. S.

AU - Lazio, T. J.W.

AU - Kassim, N. E.

AU - McClure-Griffiths, N. M.

PY - 2005/8/20

Y1 - 2005/8/20

N2 - 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.

AB - 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.

KW - Acceleration of particles

KW - ISM: individual (G12.8-0.0, HESS J1813-178)

KW - Radio lines: ISM

KW - Supernova remnants

KW - X-rays: ISM

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U2 - 10.1086/491471

DO - 10.1086/491471

M3 - Article

SN - 0004-637X

VL - 629

SP - L105-L108

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

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

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