Geysers in the Lagoon: New Herbig-Haro objects in M 8

Aims. We search for direct evidence of ongoing star formation by accretion in the Lagoon Nebula (M 8), using optical wide-field narrow-band imaging obtained at La Silla Observatory. Methods. We examine [S II] and Hα images for line-emission features that could be interpreted as signatures of outflow...

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Detalles Bibliográficos
Autores principales: Barbá, Rodolfo Héctor, Arias, Julia Inés
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ciencias Astronómicas
ISM: Herbig-Haro objects
ISM: jets and outflows
Stars: formation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83361
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83361
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
ISM: Herbig-Haro objects
ISM: jets and outflows
Stars: formation
spellingShingle Ciencias Astronómicas
ISM: Herbig-Haro objects
ISM: jets and outflows
Stars: formation
Barbá, Rodolfo Héctor
Arias, Julia Inés
Geysers in the Lagoon: New Herbig-Haro objects in M 8
topic_facet Ciencias Astronómicas
ISM: Herbig-Haro objects
ISM: jets and outflows
Stars: formation
description Aims. We search for direct evidence of ongoing star formation by accretion in the Lagoon Nebula (M 8), using optical wide-field narrow-band imaging obtained at La Silla Observatory. Methods. We examine [S II] and Hα images for line-emission features that could be interpreted as signatures of outflow activity of the exciting sources. Results. We discover five new Herbig-Haro objects, study in detail their morphology and attempt to identify their potential driving sources among the population of T Tauri stars and embedded sources in the surroundings. Conclusions. The results reported here conclusively demonstrate the existence of very young stars going through the accreting phase in the M 8 region.
format Articulo
Articulo
author Barbá, Rodolfo Héctor
Arias, Julia Inés
author_facet Barbá, Rodolfo Héctor
Arias, Julia Inés
author_sort Barbá, Rodolfo Héctor
title Geysers in the Lagoon: New Herbig-Haro objects in M 8
title_short Geysers in the Lagoon: New Herbig-Haro objects in M 8
title_full Geysers in the Lagoon: New Herbig-Haro objects in M 8
title_fullStr Geysers in the Lagoon: New Herbig-Haro objects in M 8
title_full_unstemmed Geysers in the Lagoon: New Herbig-Haro objects in M 8
title_sort geysers in the lagoon: new herbig-haro objects in m 8
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/83361
work_keys_str_mv AT barbarodolfohector geysersinthelagoonnewherbigharoobjectsinm8
AT ariasjuliaines geysersinthelagoonnewherbigharoobjectsinm8
bdutipo_str Repositorios
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