VLA and VLBI angular broadening measurements - The distribution of interstellar scattering at low Galactic latitudes

Details VLA and VLBI angular broadening measurements - The distribution of interstellar scattering at low Galactic latitudes VLA and VLBI angular broadening measurements - The distribution of interstellar scattering at low Galactic latitudes

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...372..132f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 372, May 1, 1991, p. 132-160. Research supported by Alfred P. Sloan Foundat

Astronomy and Astrophysics

Astronomy

32

Interstellar Matter, Light Scattering, Radio Sources (Astronomy), Very Large Array (Vla), Very Long Base Interferometry, Angular Distribution, Astronomical Models, Emission Spectra, Milky Way Galaxy

Scientific paper

Dual-frequency VLA and multifrequency VLBI observations of a number of sources in the Galactic plane have been made and used to estimate the amount of interstellar scattering in the Galactic plane as manifested by angular broadening of the observed sources. Some objects that may be affected by interstellar scattering are identified. The observed scattering in the Galactic plane decreases with increasing Galactic longitude, reaching a minimum at l roughly 60 deg and then becomes prominent again in the Cygnus region. The magnitude of scattering in the interarm region between l = 50-70 deg is comparable to that predicted by a model calculation of a 'smooth' component of interstellar turbulence. Thus, the more intense 'clumps' of interstellar turbulence may be mainly confined to the spiral arms. A computer simulation suggests that a complex distribution of clumps exists in the 'clumped' component, and that the form of the clump distribution as well as the density of clumps must change with increasing Galactocentric distance.

Affiliated with

Also associated with

No associations

Rating

VLA and VLBI angular broadening measurements - The distribution of interstellar scattering at low Galactic latitudes 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 VLA and VLBI angular broadening measurements - The distribution of interstellar scattering at low Galactic latitudes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VLA and VLBI angular broadening measurements - The distribution of interstellar scattering at low Galactic latitudes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1036264