On the relationship between optical polarization and extinction

Details On the relationship between optical polarization and extinction On the relationship between optical polarization and extinction

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..911c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 15, 1988, p. 911-919.

Astronomy and Astrophysics

Astrophysics

68

Infrared Absorption, Interstellar Extinction, Interstellar Matter, Line Of Sight, Optical Polarization, Astronomical Photometry, Cosmic Dust, Data Smoothing, Particle Size Distribution, Stellar Radiation

Scientific paper

A sample of stars including lines of sight within various dense clouds and stars in the diffuse interstellar medium are examined in order to investigate the relationship between various color ratios and the wavelength of the maximum of the interstellar polarization, lambda(max). The correlation of Serkowski (1975) is confirmed. The extinction laws have been fitted by minimizing the square deviations from the observed colors and the derived law. The results suggest that variations in lambda(max) are caused by differences in particle size distributions. Stars with large lambda(max) are noted in the outer regions of dense clouds, regions which are probably disturbed.

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