Magnetic field structure of the star-forming region W3(OH) - VLBI spectral line results

Journal Article · Tue Mar 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166154· OSTI ID:7251469

Garcia-Barreto, J A; Burke, B F; Reid, M J; Moran, J M; Haschick, A D

VLBI observations of the ground state 1665 MHz OH emission source in W3(OH) are presented, and 81 maser components stronger than 1.5 Jy have been detected. The observations have also led to the detection of five Zeeman pairs. The percent of linear, circular, and total polarization of the emission of each feature has been determined. Information is provided on the three-dimensional structure of the magnetic field. The results suggest that the OH cloud is permeated with a magnetic field, pointing away from the earth, having an average strength of 6 mG and with a SE-NW projected orientation on the plane of the sky. 29 references.

• Research Organization: Universidad Nacional Autonoma de Mexico, Ensenada; MIT, Cambridge, MA (USA); Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)
• OSTI ID: 7251469
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 326; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
COSMIC GASES
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUIDS
GASES
INTERSTELLAR MAGNETIC FIELDS
INTERSTELLAR SPACE
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MASERS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
SPACE
ZEEMAN EFFECT