Rotation measures of extragalactic radio sources viewed through the molecular clouds Cepheus A and L1551

Details Rotation measures of extragalactic radio sources viewed through the molecular clouds Cepheus A and L1551 Rotation measures of extragalactic radio sources viewed through the molecular clouds Cepheus A and L1551

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...303..659s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 303, April 15, 1986, p. 659-666. NSF-supported research.

Astronomy and Astrophysics

Astronomy

9

Extragalactic Radio Sources, Faraday Effect, Interstellar Magnetic Fields, Molecular Clouds, Polarimetry, Astronomical Maps, Electron Density (Concentration), Linear Polarization, Molecular Flow, Radio Astronomy

Scientific paper

VLA data on polarized sources in 11 high-velocity molecular flow regions at C-and L-band frequencies with 50 MHz resolution are analyzed to derive the Faraday rotation measures (RM) of the magnetic fields associated with the flows. The survey revealed the L1551 field, which has a strong source behind the molecular flow, and Cep A, where numerous polarized sources are located near the flow. The calculations of the RM were based on least squares analyses of the polarized intensity, position angle and total intensity maps. Differences were calculated in the RMs for different lines of sight in order to determine the causes of variations in the electron densities and magnetic fields within the clouds. The magnetic field within the L1551 flow was estimated to be 0.1 mG, indicating the presence of significant shock ionization at relative velocities exceeding 50 km/sec. Further observational techniques that may be employed to increase the understanding of the physical characteristics of bipolar flows are discussed.

Affiliated with

Also associated with

No associations

Rating

Rotation measures of extragalactic radio sources viewed through the molecular clouds Cepheus A and L1551 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rotation measures of extragalactic radio sources viewed through the molecular clouds Cepheus A and L1551, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation measures of extragalactic radio sources viewed through the molecular clouds Cepheus A and L1551 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1101943