An expanding high velocity hi cloud probably ejected from the galactic nucleus

An object located approximately atl=8°,b=−4° with a mean radial velocity of −212.3 km s−1 has been observed in the 21 cm neutral hydrogen line. The mean weighted velocity dispersion is 11.2 km s−1 and the total mass is estimated to be 190R2 (kpc) solar masses. We discuss possible interpretations of...

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Detalhes bibliográficos
Autores: Mirabel Miquele, Igor Félix, Franco, M. L.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:1976
País:Argentina
Recursos:Universidad Nacional de La Plata
Repositório:SEDICI (UNLP)
Idioma:inglês
OAI Identifier:oai:sedici.unlp.edu.ar:10915/140070
Acesso em linha:http://sedici.unlp.edu.ar/handle/10915/140070
Access Level:Acceso aberto
Palavra-chave:Ciencias Exactas
Astronomía
Hydrogen
Total Mass
High Velocity
Radial Velocity
Velocity Dispersion
Descrição
Resumo:An object located approximately atl=8°,b=−4° with a mean radial velocity of −212.3 km s−1 has been observed in the 21 cm neutral hydrogen line. The mean weighted velocity dispersion is 11.2 km s−1 and the total mass is estimated to be 190R2 (kpc) solar masses. We discuss possible interpretations of the origin and nature of this object. The most likely interpretation is that we observe an expanding object which has been ejected from the galactic nucleus.