English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/174268
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Título

Further studies of the role of dense molecular clouds around outflow sources

AutorVerdes-Montenegro, Lourdes ; Torrelles, J.M.; Rodríguez, L.F.; Anglada, G.; López, R.; Estalella, R.; Cantó, J.; Ho, P.T.P.
Palabras claveMasers
Stars: pre-main-sequence
Nebulae: general
Interstellar: molecules
Fecha de publicación1989
EditorInstitute of Physics Publishing
CitaciónAstrophysical Journal 346: 193- 200 (1989)
ResumenWe observed with the 37 m telescope of the Haystack Observatory the (J, K) = (1, 1) and (2, 2) ammonia inversion transitions toward six regions with active star formation and evidence of outflows: AFGL 5142, HH 33/40, AFGL 5157, AFGL 6366S, HHL 73, and S140N. (J, K) = (1, 1) ammonia emission was detected and mapped toward all sources except for HH 33/40, while (J, K) = (2, 2) ammonia emission was detected toward AFGL 5157 and S140N. We derived rotational temperatures of T(2, 2; 1, 1) ≤ 17 K in all cases. We also searched for HO masers, and intense emission (S ≥ 40 Jy) was detected toward the AFGL 5142 and AFGL 5157 ammonia cores. It is clear that the dense ammonia gas is closely associated with the star formation activities, since the ammonia cores in all cases peak close to the centers of activity. In particular, the AFGL 5157 ammonia condensation coincides with the geometrical center of a bipolar molecular outflow suggesting that the exciting source is embedded in the ammonia core. In contrast, the molecular outflow in the AFGL 6366S region is located at the southeast edge of the ammonia condensation, suggesting that the exciting source is outside the ammonia core and that the morphology of the outflow may be influenced by the interaction with the dense ambient gas.
URIhttp://hdl.handle.net/10261/174268
Identificadoresissn: 1538-4357
Aparece en las colecciones: (IAA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
IAA_1989ApJ___346__193V.pdf740,24 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.