The infrared Hourglass cluster in M8
A detailed study of the Hourglass nebula in the M8 star-forming region is presented. The study is mainly based on recent subarcsec-resolution JHK<SUB>s</SUB> images taken at Las Campanas Observatory and complemented with archival Hubble Space Telescope (HST) images and long-slit spectros...
| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2006
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/83155 |
| Aporte de: |
| id |
I19-R120-10915-83155 |
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| 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 ISM: Herbig-Haro objects ISM: jets and outflows Stars: formation Stars: pre-main-sequence |
| spellingShingle |
Ciencias Astronómicas H II regions ISM: Herbig-Haro objects ISM: jets and outflows Stars: formation Stars: pre-main-sequence Arias, Julia Inés Barbá, Rodolfo Héctor Maíz Apellániz, J. Morrell, Nidia Irene Rubio, M. The infrared Hourglass cluster in M8 |
| topic_facet |
Ciencias Astronómicas H II regions ISM: Herbig-Haro objects ISM: jets and outflows Stars: formation Stars: pre-main-sequence |
| description |
A detailed study of the Hourglass nebula in the M8 star-forming region is presented. The study is mainly based on recent subarcsec-resolution JHK<SUB>s</SUB> images taken at Las Campanas Observatory and complemented with archival Hubble Space Telescope (HST) images and long-slit spectroscopy retrieved from the European Southern Observatory Archive Facility. Using the new numerical code chorizos, we estimate the distance to the earliest stars in the region to be 1.25 kpc. Infrared photometry of all the sources detected in the field is given. From analysis of the JHK<SUB>s</SUB> colour-colour diagrams, we find that an important fraction of these sources exhibit significant infrared excess. These objects are candidates to be low- and intermediate-mass pre-main-sequence stars. Based on HST observations, the spatial distribution of gas, dust and stars in the region is analysed. A morphological analysis of these images also reveals a rich variety of structures related to star formation (proplyds, jets, bow shocks), similar to those observed in M16 and M42, along with the detection of the first four Herbig-Haro objects in the region. Furthermore, a long-slit spectrum obtained with the New Technology Telescope confirms the identification of one of them (HH 870) in the core of the Hourglass nebula, providing the first direct evidence of active star formation by accretion in M8. |
| format |
Articulo Articulo |
| author |
Arias, Julia Inés Barbá, Rodolfo Héctor Maíz Apellániz, J. Morrell, Nidia Irene Rubio, M. |
| author_facet |
Arias, Julia Inés Barbá, Rodolfo Héctor Maíz Apellániz, J. Morrell, Nidia Irene Rubio, M. |
| author_sort |
Arias, Julia Inés |
| title |
The infrared Hourglass cluster in M8 |
| title_short |
The infrared Hourglass cluster in M8 |
| title_full |
The infrared Hourglass cluster in M8 |
| title_fullStr |
The infrared Hourglass cluster in M8 |
| title_full_unstemmed |
The infrared Hourglass cluster in M8 |
| title_sort |
infrared hourglass cluster in m8 |
| publishDate |
2006 |
| url |
http://sedici.unlp.edu.ar/handle/10915/83155 |
| work_keys_str_mv |
AT ariasjuliaines theinfraredhourglassclusterinm8 AT barbarodolfohector theinfraredhourglassclusterinm8 AT maizapellanizj theinfraredhourglassclusterinm8 AT morrellnidiairene theinfraredhourglassclusterinm8 AT rubiom theinfraredhourglassclusterinm8 AT ariasjuliaines infraredhourglassclusterinm8 AT barbarodolfohector infraredhourglassclusterinm8 AT maizapellanizj infraredhourglassclusterinm8 AT morrellnidiairene infraredhourglassclusterinm8 AT rubiom infraredhourglassclusterinm8 |
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Repositorios |
| _version_ |
1764820488342732801 |