Sh2-205 - II. Quiescent star-formation activity

We present a study of active star-forming regions in the environs of the H ii region Sh2-205. The analysis is based on data obtained from point source catalogues and images extracted from the Two-Micron All-Sky Survey (2MASS), Midcourse Space Experiment (MSX) and IRAS surveys. Complementary data are...

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Detalles Bibliográficos
Autores principales: Romero, Gisela Andrea, Cappa, Cristina Elisabet
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Astronómicas
H ii regions
Infrared: ISM
Infrared: stars
ISM: structure
Stars: formation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82787
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82787
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
H ii regions
Infrared: ISM
Infrared: stars
ISM: structure
Stars: formation
spellingShingle Ciencias Astronómicas
H ii regions
Infrared: ISM
Infrared: stars
ISM: structure
Stars: formation
Romero, Gisela Andrea
Cappa, Cristina Elisabet
Sh2-205 - II. Quiescent star-formation activity
topic_facet Ciencias Astronómicas
H ii regions
Infrared: ISM
Infrared: stars
ISM: structure
Stars: formation
description We present a study of active star-forming regions in the environs of the H ii region Sh2-205. The analysis is based on data obtained from point source catalogues and images extracted from the Two-Micron All-Sky Survey (2MASS), Midcourse Space Experiment (MSX) and IRAS surveys. Complementary data are taken from a CO survey. The identification of primary candidates for star-formation activity is made following colour criteria and a correlation with molecular gas emission. A number of star-formation tracer candidates are projected on to two substructures of the H ii region: SH 148.83-0.67 and SH 149.25-0.00. However, the lack of molecular gas related to these structures casts doubt on the nature of the sources. Additional infrared sources may be associated with the H i shell centred at (l, b) = (149°0′, -1°30′). The most striking active area was found in connection with the H ii region LBN 148.11-0.45, where star-formation candidates are projected on to molecular gas. The analytical model of the 'collect and collapse' process shows that star-formation activity could have been triggered by the expansion of this H ii region.
format Articulo
Articulo
author Romero, Gisela Andrea
Cappa, Cristina Elisabet
author_facet Romero, Gisela Andrea
Cappa, Cristina Elisabet
author_sort Romero, Gisela Andrea
title Sh2-205 - II. Quiescent star-formation activity
title_short Sh2-205 - II. Quiescent star-formation activity
title_full Sh2-205 - II. Quiescent star-formation activity
title_fullStr Sh2-205 - II. Quiescent star-formation activity
title_full_unstemmed Sh2-205 - II. Quiescent star-formation activity
title_sort sh2-205 - ii. quiescent star-formation activity
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/82787
work_keys_str_mv AT romerogiselaandrea sh2205iiquiescentstarformationactivity
AT cappacristinaelisabet sh2205iiquiescentstarformationactivity
bdutipo_str Repositorios
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