ICATE   21876
INSTITUTO DE CIENCIAS ASTRONOMICAS, DE LA TIERRA Y DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
An HST/NICMOS view of the prototypical giant HII region NGC 604 in M33
Autor/es:
BARBÁ, R.; MAÍZ APELLÁNIZ, J.; PÉREZ, E.; RUBIO, M.; BOLATTO, A.; FARIÑA, C.; BOSCH, G.; WALBORN, N.
Revista:
ASTROPHYSICS AND SPACE SCIENCE
Referencias:
Año: 2008
ISSN:
0004-640X
Resumen:
We present the first high-spatial resolution near-infrared (NIR) imaging of NGC 604, obtained with the NICMOS camera aboard the Hubble Space Telescope. These NICMOS broadband images reveal new NIR point sources, clusters and diffuse structures. We found an excellent spatial correlation between 8.4 GHz radio continuum and 2.2mum nebular emission. Moreover, massive young stellar object candidates appear aligned with these radio peaks, reinforcing the idea that those areas are star forming regions. Three different scale OB associations are recognized in the NICMOS images. The brightest NIR sources in our images have properties that suggest that they are red supergiant stars, one of them being previously known. This preliminary analysis of the NICMOS images shows the complexity of the stellar content of the NGC 604 nebula.