Subarcsecond images of CW-Tauri - constraints on disk size and jet formation

Subarcsecond spatial resolution images in the [S II] and [N II] + Halpha emission lines of the T Tauri star (TTS) CW Tau are presented. It is shown that CW Tau has a jet that extends up to 2.2'' (300 AU) from the star in the direction P.A. = 144-degrees. The jet emits strongly in [S II], a...

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Detalles Bibliográficos
Autor: Gómez De Castro, Ana Inés
Tipo de recurso: artículo
Fecha de publicación:1993
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/57561
Acceso en línea:https://hdl.handle.net/20.500.14352/57561
Access Level:acceso abierto
Palabra clave:52
Young stellar objects
France-Hawaii telescope
high-resolution camera
Circumstellar disks
Forbidden-line
Stars
Formation
Individual
Cw-tauri
Fm-tauri
V773-tauri
Pre-main-sequence
Astronomía (Matemáticas)
21 Astronomía y Astrofísica
Descripción
Sumario:Subarcsecond spatial resolution images in the [S II] and [N II] + Halpha emission lines of the T Tauri star (TTS) CW Tau are presented. It is shown that CW Tau has a jet that extends up to 2.2'' (300 AU) from the star in the direction P.A. = 144-degrees. The jet emits strongly in [S II], and it is already collimated at 1.3'' (176 AU) from the star. The images also indicate that CW Tau is extended in the east-west direction and that the jet is slightly shifted to the east. This suggests that CW Tau may be a binary with the two components separated 0.20'' (28 AU). The observations are compared with the theoretical models proposed for the production of forbidden line emission regions (FLERs) and protostellar jets.