A deep dive into NGC604 with Gemini/NIRI imaging

The giant HII region NGC 604 constitutes a complex and rich population to study in detail many aspects of massive star formation, such as their environments and physical conditions, the evolutionary processes involved, the initial mass function for massive stars and starformation rates, among many o...

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Detalhes bibliográficos
Autores: Fariña, Cecilia, Bosch, Guillermo Luis, Barbá, Rodolfo Héctor
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Argentina
Recursos:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/82795
Acesso em linha:http://sedici.unlp.edu.ar/handle/10915/82795
Access Level:acceso abierto
Palavra-chave:Ciencias Astronómicas
Galaxies: individual (M 33)
HII regions
Infrared: stars
ISM: individual (NGC 604)
Stars: early-type
Stars: formation
Techniques: photometric
Descrição
Resumo:The giant HII region NGC 604 constitutes a complex and rich population to study in detail many aspects of massive star formation, such as their environments and physical conditions, the evolutionary processes involved, the initial mass function for massive stars and starformation rates, among many others. Here, we present our first results of a near-infrared study of NGC 604 performed with NIRI images obtained with Gemini North. Based on deep JHK photometry, 164 sources showing infrared excess were detected, pointing to the places where we should look for star-formation processes currently taking place. In addition, the color-color diagram reveals a great number of objects that could be giant/supergiant stars or unresolved, small, tight clusters. An extinction map obtained based on narrow-band images is also shown.