Detection of polarization variation across absorption features of Mira variables

Details Detection of polarization variation across absorption features of Mira variables Detection of polarization variation across absorption features of Mira variables

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...211..825l&link_type=abstract

Astrophysical Journal, Part 1, vol. 211, Feb. 1, 1977, p. 825-835. Research supported by the National Research Council of Canad

Astronomy and Astrophysics

Astrophysics

36

Mira Variables, Optical Polarization, Polarimetry, Stellar Spectrophotometry, Variable Stars, Atmospheric Scattering, Carbon Stars, Graphs (Charts), M Stars, Stellar Atmospheres, Stellar Envelopes

Scientific paper

The wavelength dependence of polarization has been measured in five Mira variables and one RV Tauri star over the range 3300-11000 A, with resolution between 20 and 160 A. All the Mira variables observed show significant changes in polarization across some molecular or atomic absorption features, indicating that at least part of the polarization of these stars arises in the stellar atmosphere rather than in a circumstellar dust shell.

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