Interstellar scattering toward the Galactic center as probed OH/IR stars

Details Interstellar scattering toward the Galactic center as probed OH/IR stars Interstellar scattering toward the Galactic center as probed OH/IR stars

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...396..686v&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 396, no. 2, Sept. 10, 1992, p. 686-695. Research supported by NSERC, Nation

Astronomy and Astrophysics

Astronomy

73

Electromagnetic Scattering, Electron Scattering, Galactic Nuclei, Infrared Stars, Interstellar Masers, Radiation Distribution, Angular Distribution, Hydroxyl Radicals, Line Spectra, Power Spectra, Stellar Envelopes, Very Long Base Interferometry

Scientific paper

Angular broadening measurements of 20 OH/IR stars near the Galactic center are reported. VLBA antennas and the VLA were employed to perform a MkII spectral line VLBI experiment. The distribution of interstellar scattering toward the Galactic center is determined on the basis of the present data, together with additional data taken from the literature. A region of pronounced scattering (525 mas at 1.612 GHz) nearly centered on Sgr A* was found. Two interpretations for the enhanced scattering are presented. One hypothesis is that the scattering is due to a clump of enhanced turbulence, such as those that lie along lines of sight to other known objects, that has no physical relationship to the Galactic center. The other model considers the location of the enhanced scattering to arise in the Galactic center itself. The physical implications of the models provide information on the nature of the interstellar scattering.

Affiliated with

Also associated with

No associations

Rating

Interstellar scattering toward the Galactic center as probed OH/IR stars 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 Interstellar scattering toward the Galactic center as probed OH/IR stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar scattering toward the Galactic center as probed OH/IR stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1765968