Abstract
view Abstract Citations (109) References (45) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observations of grain and magnetic field properties of the R Coronae Australis dark cloud. Vrba, F. J. ; Coyne, G. V. ; Tapia, S. Abstract A polarimetric study of grains and magnetic fields in the R Coronae Australis dark cloud is presented. The magnetic field forms a pocket which follows the cloud contours smoothly. Star formation has occurred only at the bottom of the pocket at the point of minimum galactic plane gravitational potential. The mean ratio of total to selective extinction implied by the polarization observations is 4.47, with observed values for individual stars ranging from 2.8 to 6.3. Large grains are widely distributed throughout the cloud, and increase in size with increasing depth into the cloud. This is explained by the combined action of the cloud gravitational and magnetic fields on the charged grains. The rotation and star formation rates of the cloud are consistent with the magnetic field strength implied by the grain alignment scales. The general evolution of the cloud is controlled by the ratio of magnetic to gravitational energies. Publication: The Astrophysical Journal Pub Date: January 1981 DOI: 10.1086/158615 Bibcode: 1981ApJ...243..489V Keywords: Cosmic Dust; Interstellar Magnetic Fields; Interstellar Matter; Molecular Clouds; Polarimetry; Gravitational Fields; Magnetic Effects; Nebulae; Star Formation Rate; Astrophysics full text sources ADS | data products SIMBAD (72)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
