1435MHz continuum observations of Upper-Scorpius.
Abstract
We report total-power observations at 1435MHz of the Upper-Scorpius region. The spectral index distribution has been computed using available data from a previous 408MHz all-sky survey by Haslam et al. (1981). An extended spur-like structure dominated by nonthermal emission has been detected surrounding the region. We discuss the origin and nature of this region on the basis of a model of the interaction between a shock front and a cloudy ISM. Several physical parameters are estimated.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- April 1995
- Bibcode:
- 1995A&A...296..514C
- Keywords:
-
- ISM: STRUCTURE;
- SUPERNOVA REMNANTS;
- SHOCK WAVES;
- RADIO CONTINUUM: ISM