Starlight polarization in the direction of two H I complexes

Details Starlight polarization in the direction of two H I complexes Starlight polarization in the direction of two H I complexes

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86..875m&link_type=abstract

Astronomical Journal, vol. 86, June 1981, p. 875-880.

Astronomy and Astrophysics

Astronomy

4

Hydrogen Clouds, Interstellar Magnetic Fields, Interstellar Matter, Polarized Light, Stellar Radiation, Astronomical Maps, Cosmic Dust, Interstellar Gas, Tables (Data)

Scientific paper

Upper limits to the gas/dust ratio in the direction of two complexes are derived based on 21-cm line observations and starlight polarization measurements. Elongated H I structures parallel to the galactic magnetic field suggest that the gas and dust comprise a common cloud or cloud system. Dust producing the starlight polarization is mixed with the H I gas, aiding in estimating the distance for the two H I complexes. Distances of 100 pc for the filament at low velocities and of 200 pc for an intermediate-velocity cloud complex (IVC) are established from polarimetric data, and possible origins for the filaments and IVC are suggested.

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