The nature of the embedded population in the rho Ophiuchi dark cloud : mid-infrared observations.
Abstract
The authors present results of mid-infrared (primarily 10 and 20 μm wavelength) observations of previously identified members of the embedded populatin of the ρ Ophiuchi dark cloud. These observations enable determination of broad-band energy distributions for 32 of the 44 sources known to be embedded in the cloud. The majority of the sources emit the bulk of their luminosity between 1 μm and 20 μm. These sources apparently are surrounded by dust shells and are probably pre-main-sequence in nature. It is found that the embedded cluster is predominantly composed of low-luminosity objects with luminosities in the range 0.1 ≤ L/L_sun; ≤ 25. When corrected for observational selection effects, the resulting luminosity function appears to be deficient in intermediate-luminosity stars compared with the luminosity function for field stars.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1984
- DOI:
- 10.1086/162719
- Bibcode:
- 1984ApJ...287..610L
- Keywords:
-
- Infrared Astronomy;
- Molecular Clouds;
- Star Clusters;
- Stellar Evolution;
- Stellar Luminosity;
- Bolometers;
- Early Stars;
- Millimeter Waves;
- T Tauri Stars;
- Astrophysics