Low-resolution spectroscopy and spectral energy distributions of selected sources towards σ Orionis
Aims: We study in detail nine sources in the direction of the young σ Orionis cluster, which is considered to be a unique site for studying stellar and substellar formation. The nine sources were selected because of their peculiar properties, such as extremely-red infrared colours or excessively strong Hα emission for their blue optical colours
Caballero, J. A. et al.
Fecha de publicación:
11
2008