GS263-02+45: A new HI supershell with evidence of having triggered star formation?

Aims.We look for galactic neutral hydrogen (Hi) supershells likely to be associated with massive star groupings.Methods.A neutral hydrogen (Hi) line survey carried out at the Instituto Argentino de Radioastronomía (IAR) and the Southern Galactic Plane Survey (SGPS) were the main databases used in th...

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Detalles Bibliográficos
Autores principales: Arnal, Edmundo Marcelo, Corti, Mariela Alejandra
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Astronómicas
Galaxy: kinematics and dynamics
Galaxy: structure
ISM: bubbles
ISM: structure
Radio lines: ISM
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83009
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83009
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
Galaxy: structure
ISM: bubbles
ISM: structure
Radio lines: ISM
spellingShingle Ciencias Astronómicas
Galaxy: kinematics and dynamics
Galaxy: structure
ISM: bubbles
ISM: structure
Radio lines: ISM
Arnal, Edmundo Marcelo
Corti, Mariela Alejandra
GS263-02+45: A new HI supershell with evidence of having triggered star formation?
topic_facet Ciencias Astronómicas
Galaxy: kinematics and dynamics
Galaxy: structure
ISM: bubbles
ISM: structure
Radio lines: ISM
description Aims.We look for galactic neutral hydrogen (Hi) supershells likely to be associated with massive star groupings.Methods.A neutral hydrogen (Hi) line survey carried out at the Instituto Argentino de Radioastronomía (IAR) and the Southern Galactic Plane Survey (SGPS) were the main databases used in this investigation.Results.A new Hi supershell (GS263-02+45) was found in the outer part of the Galaxy. This structure is located at a distance of 5.3 1 kpc from the Sun and has a linear diameter of about 665 40 pc. The expansion velocity of the supershell is ~14 km s. The total amount of atomic gas related to GS263-02+45 is ~2 10 . Based on the analysis of the SGPS Hi data it is concluded that the OB-association Bochum 7 is likely to be interacting with GS263-02+45. This fact together with distance and age arguments may indicate that Bochum 7 was born as a consequence of the evolution of GS263-02+45.
format Articulo
Articulo
author Arnal, Edmundo Marcelo
Corti, Mariela Alejandra
author_facet Arnal, Edmundo Marcelo
Corti, Mariela Alejandra
author_sort Arnal, Edmundo Marcelo
title GS263-02+45: A new HI supershell with evidence of having triggered star formation?
title_short GS263-02+45: A new HI supershell with evidence of having triggered star formation?
title_full GS263-02+45: A new HI supershell with evidence of having triggered star formation?
title_fullStr GS263-02+45: A new HI supershell with evidence of having triggered star formation?
title_full_unstemmed GS263-02+45: A new HI supershell with evidence of having triggered star formation?
title_sort gs263-02+45: a new hi supershell with evidence of having triggered star formation?
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/83009
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