A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell

Aims. We look for radio-continuum and atomic neutral hydrogen (Hi) counterparts of the IRAS Vela shell (IVS). Methods. Neutral hydrogen (Hi) and 1410 MHz radio continuum surveys carried out with the Instituto Argentino de Radioastronomía (IAR) dishes are the main databases used in this investigatio...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Testori, Juan Carlos, Arnal, Edmundo Marcelo, Morras, Ricardo, Bajaja, Esteban, Pöppel, Wolfgang G. L., Reich, P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Ciencias Astronómicas
Galaxy: kinematics and dynamics
ISM: clouds
Radio lines: ISM
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83048
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83048
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
Galaxy: kinematics and dynamics
ISM: clouds
Radio lines: ISM
spellingShingle Ciencias Astronómicas
Galaxy: kinematics and dynamics
ISM: clouds
Radio lines: ISM
Testori, Juan Carlos
Arnal, Edmundo Marcelo
Morras, Ricardo
Bajaja, Esteban
Pöppel, Wolfgang G. L.
Reich, P.
A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell
topic_facet Ciencias Astronómicas
Galaxy: kinematics and dynamics
ISM: clouds
Radio lines: ISM
description Aims. We look for radio-continuum and atomic neutral hydrogen (Hi) counterparts of the IRAS Vela shell (IVS). Methods. Neutral hydrogen (Hi) and 1410 MHz radio continuum surveys carried out with the Instituto Argentino de Radioastronomía (IAR) dishes are the main databases used in this investigation. Results. A good morphological correlation was found between arc-shaped structures at radio wavelengths and in the 100 μm IR emission. This correlation is observed at velocities of the Hi between -17.5 and -2.1 km s<SUP>-1</SUP>, in agreement with the velocities of the molecular gas detected in the region. The radial distribution of the different components is consistent with the presence of an expanding shell that is being ionized from inside. Assuming a distance of 400 pc, the amount of ionized and atomic gas associated with the IVS is 2.3 × 10<SUP>4</SUP> and 6.8 × 10<SUP>4</SUP> solar masses, respectively. The origin of the expansion of the IVS could not be identified.
format Articulo
Articulo
author Testori, Juan Carlos
Arnal, Edmundo Marcelo
Morras, Ricardo
Bajaja, Esteban
Pöppel, Wolfgang G. L.
Reich, P.
author_facet Testori, Juan Carlos
Arnal, Edmundo Marcelo
Morras, Ricardo
Bajaja, Esteban
Pöppel, Wolfgang G. L.
Reich, P.
author_sort Testori, Juan Carlos
title A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell
title_short A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell
title_full A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell
title_fullStr A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell
title_full_unstemmed A radio continuum and neutral hydrogen counterpart to the IRAS Vela shell
title_sort radio continuum and neutral hydrogen counterpart to the iras vela shell
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/83048
work_keys_str_mv AT testorijuancarlos aradiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT arnaledmundomarcelo aradiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT morrasricardo aradiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT bajajaesteban aradiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT poppelwolfganggl aradiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT reichp aradiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT testorijuancarlos radiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT arnaledmundomarcelo radiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT morrasricardo radiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT bajajaesteban radiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT poppelwolfganggl radiocontinuumandneutralhydrogencounterparttotheirasvelashell
AT reichp radiocontinuumandneutralhydrogencounterparttotheirasvelashell
bdutipo_str Repositorios
_version_ 1764820488231583744

Ejemplares similares