Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...365..230c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 365, Dec. 10, 1990, p. 230-238.
Astronomy and Astrophysics
Astrophysics
20
Circular Polarization, Dielectrics, Interstellar Extinction, Interstellar Matter, Optical Properties, Interstellar Gas, Linear Polarization, Mie Scattering
Scientific paper
The relationship between interstellar linear and circular polarization is reexamined. The derivation of optical constants for relevant materials is described, emphasizing general constraints on the electromagnetic response of an optical medium (Kramers-Kronig relations) which also provide the basis for the subsequent analysis of interstellar polarization. The formulas that relate the observed polarization to the properties of individual grains are summarized. It is shown that the apparent upper limit on the visual absorptivity of grains derived from earlier Mie theory calculations results from a violation of the Kramers-Kronig relations in the assumed optical constants of the particles. The analysis of circular and linear polarization in the interstellar medium is presented, and the implications of this analysis for grain models are addressed.
Chlewicki Grzegorz
Greenberg Mayo J.
No associations
LandOfFree
Interstellar circular polarization and the dielectric nature of dust grains 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 circular polarization and the dielectric nature of dust grains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar circular polarization and the dielectric nature of dust grains will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1629461