Sh2-205 - II. Quiescent star-formation activity

dc.creatorRomero, Gisela Andrea
dc.creatorCappa, Cristina Elisabet
dc.date2009
dc.date2019-10-04T18:00:09Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/82787
dc.identifierissn:0035-8711
dc.descriptionWe 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.
dc.descriptionFacultad de Ciencias Astronómicas y Geofísicas
dc.formatapplication/pdf
dc.format2095-2102
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Astronómicas
dc.subjectH ii regions
dc.subjectInfrared: ISM
dc.subjectInfrared: stars
dc.subjectISM: structure
dc.subjectStars: formation
dc.titleSh2-205 - II. Quiescent star-formation activity
dc.typeArticulo
dc.typeArticulo


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