Multicolour polarization and CO observations towards a dark filament in Musca

Autor: Edmundo Marcelo Arnal, R. Morras, J. R. Rizzo
Rok vydání: 1993
Předmět:
Zdroj: Monthly Notices of the Royal Astronomical Society. 265:1-11
ISSN: 1365-2966
0035-8711
DOI: 10.1093/mnras/265.1.1
Popis: Multicolour polarimetry with high sensitivity of stars in the region of the Musca filamentary cloud and 12 CO (J=1→0) observations towards the same area are reported. A lower distance limit of 150 pc is derived for this cloud from a polarization percentage versus distance modulus diagram. From the carbon monoxide data, a total mass of 170 solar masses is obtained. The molecular gas density is of the order of 300 cm −3 . The direction of the observed projected interstellar magnetic field is almost perpendicular to the major axis of the cloud. We believe that the magnetic field has played a significant role in the evolution of this cloud
Databáze: OpenAIRE