G337.2+0.1: a new X-ray supernova remnant?

We present evidence supporting a SNR origin for the radio source G337.2+0.1, which was discovered along the line of sight to the Norma spiral arm in the MOST 843-MHz radio survey. The radio source is spatially superposed to the unidentified ASCA source AX J1635.9-4719. An analysis of this latter sou...

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Detalles Bibliográficos
Autores principales: Combi, Jorge Ariel, Benaglia, Paula, Romero, Gustavo Esteban, Sugizaki, M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Ciencias Astronómicas
ISM: cosmic rays
ISM: supernova remnants
Radiative mechanism: non-thermal
Radio continuum: ISM
X-ray: individuals: AX J1635.9-4719
X-rays: ISM
Radiación cósmica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84895
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84895
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
ISM: cosmic rays
ISM: supernova remnants
Radiative mechanism: non-thermal
Radio continuum: ISM
X-ray: individuals: AX J1635.9-4719
X-rays: ISM
Radiación cósmica
spellingShingle Ciencias Astronómicas
ISM: cosmic rays
ISM: supernova remnants
Radiative mechanism: non-thermal
Radio continuum: ISM
X-ray: individuals: AX J1635.9-4719
X-rays: ISM
Radiación cósmica
Combi, Jorge Ariel
Benaglia, Paula
Romero, Gustavo Esteban
Sugizaki, M.
G337.2+0.1: a new X-ray supernova remnant?
topic_facet Ciencias Astronómicas
ISM: cosmic rays
ISM: supernova remnants
Radiative mechanism: non-thermal
Radio continuum: ISM
X-ray: individuals: AX J1635.9-4719
X-rays: ISM
Radiación cósmica
description We present evidence supporting a SNR origin for the radio source G337.2+0.1, which was discovered along the line of sight to the Norma spiral arm in the MOST 843-MHz radio survey. The radio source is spatially superposed to the unidentified ASCA source AX J1635.9-4719. An analysis of this latter source reveals that its X-ray spectrum, extended nature, and non-variable flux are consistent with what is expected for a SNR. In addition, we have used HI-line observations of the region to look for any effect of the presumed remnant on the ISM. We have found a well-defined minimum centered at the position of the radio source in the velocity range of ~ -25 to -19 km s-1. This feature appears as a sharp absorption dip in the spectrum that might be produced when the continuum emission from the SNR candidate is absorbed by foreground gas. Hence we have used it to constrain the distance to the source, which seems to be a young (age ~ a few 103 yr) and distant (d ~ 14 kpc) SNR. G337.2+0.1 and AX J1635.9-4719 would be the radio/X-ray manifestations of this remnant.
format Articulo
Articulo
author Combi, Jorge Ariel
Benaglia, Paula
Romero, Gustavo Esteban
Sugizaki, M.
author_facet Combi, Jorge Ariel
Benaglia, Paula
Romero, Gustavo Esteban
Sugizaki, M.
author_sort Combi, Jorge Ariel
title G337.2+0.1: a new X-ray supernova remnant?
title_short G337.2+0.1: a new X-ray supernova remnant?
title_full G337.2+0.1: a new X-ray supernova remnant?
title_fullStr G337.2+0.1: a new X-ray supernova remnant?
title_full_unstemmed G337.2+0.1: a new X-ray supernova remnant?
title_sort g337.2+0.1: a new x-ray supernova remnant?
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/84895
work_keys_str_mv AT combijorgeariel g337201anewxraysupernovaremnant
AT benagliapaula g337201anewxraysupernovaremnant
AT romerogustavoesteban g337201anewxraysupernovaremnant
AT sugizakim g337201anewxraysupernovaremnant
bdutipo_str Repositorios
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