The infrared and molecular environment surrounding the Wolf-Rayet star WR 130

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We present a study of the molecular CO gas and mid/far-infrared radiation arising from the environment surrounding the Wolf-Rayet (WR) star 130. We use the multiwavelength data to analyse the properties of the dense gas and dust, and its possible spatial correlation with that of young stellar object...

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Detalles Bibliográficos
Autores principales: Cichowolski, Silvina, Suad, Laura Andrea, Pineault, S., Noriega Crespo, A., Arnal, Edmundo Marcelo, Flagey, N.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Astronómicas
HII regions
Infrared: ISM
ISM: bubbles
Stars: formation
Stars: individual: WR 130
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86055
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86055
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
HII regions
Infrared: ISM
ISM: bubbles
Stars: formation
Stars: individual: WR 130
spellingShingle Ciencias Astronómicas
HII regions
Infrared: ISM
ISM: bubbles
Stars: formation
Stars: individual: WR 130
Cichowolski, Silvina
Suad, Laura Andrea
Pineault, S.
Noriega Crespo, A.
Arnal, Edmundo Marcelo
Flagey, N.
The infrared and molecular environment surrounding the Wolf-Rayet star WR 130
topic_facet Ciencias Astronómicas
HII regions
Infrared: ISM
ISM: bubbles
Stars: formation
Stars: individual: WR 130
description We present a study of the molecular CO gas and mid/far-infrared radiation arising from the environment surrounding the Wolf-Rayet (WR) star 130. We use the multiwavelength data to analyse the properties of the dense gas and dust, and its possible spatial correlation with that of young stellar objects (YSOs). We use <SUP>12</SUP>CO J=1-0 data from the Five College Radio Astronomy Observatory survey as tracer of the molecular gas, and mid/far-infrared data from the recent <i>Wide-Field Infrared Survey Explorer</i> (WISE) and <i>Herschel</i> space surveys to study the dust continuum radiation and to identify a population of associated candidate YSOs. The spatial distribution of the molecular gas shows a ring-like structure very similar to that observed in the H I gas, and over the same velocity interval. The relative spatial distribution of the H I and CO components is consistent with a photodissociation region. We have identified and characterized four main and distinct molecular clouds that create this structure. Cold dust is coincident with the dense gas shown in the CO measurements. We have found several young stellar object candidates that lie along the regions with the highest gas column density, and suggest that they are spatially correlated with the shell. These are indicative of regions of star formation induced by the strong wind and ionization of the WR star.
format Articulo
Articulo
author Cichowolski, Silvina
Suad, Laura Andrea
Pineault, S.
Noriega Crespo, A.
Arnal, Edmundo Marcelo
Flagey, N.
author_facet Cichowolski, Silvina
Suad, Laura Andrea
Pineault, S.
Noriega Crespo, A.
Arnal, Edmundo Marcelo
Flagey, N.
author_sort Cichowolski, Silvina
title The infrared and molecular environment surrounding the Wolf-Rayet star WR 130
title_short The infrared and molecular environment surrounding the Wolf-Rayet star WR 130
title_full The infrared and molecular environment surrounding the Wolf-Rayet star WR 130
title_fullStr The infrared and molecular environment surrounding the Wolf-Rayet star WR 130
title_full_unstemmed The infrared and molecular environment surrounding the Wolf-Rayet star WR 130
title_sort infrared and molecular environment surrounding the wolf-rayet star wr 130
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/86055
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