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Authordc.contributor.authorArias, José I. 
Authordc.contributor.authorBarbá, R. H. es_CL
Authordc.contributor.authorMaíz Apellániz, J. es_CL
Authordc.contributor.authorMorrell, Nidia es_CL
Authordc.contributor.authorRubio López, Mónica es_CL
Admission datedc.date.accessioned2008-12-05T16:25:56Z
Available datedc.date.available2008-12-05T16:25:56Z
Publication datedc.date.issued2006-03-01
Cita de ítemdc.identifier.citationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Volume: 366 Issue: 3 Pages: 739-757 Published: MAR 1 2006en
Identifierdc.identifier.issn0035-8711
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/124745
Abstractdc.description.abstractA detailed study of the Hourglass nebula in the M8 star-forming region is presented. The study is mainly based on recent subarcsec-resolution JHK(s) 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(s) 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.en
Lenguagedc.language.isoenen
Publisherdc.publisherBLACKWELL PUBLISHINGen
Keywordsdc.subjectHERBIG-HARO OBJECTSen
Títulodc.titleThe infrared Hourglass cluster in M8en
Document typedc.typeArtículo de revistaen


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