Abstract
view Abstract Citations (9) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Narrowband polarimetry of southern red long-period variables. Codina-Landaberry, S. J. ; Magalhaes, A. M. Abstract Narrowband linear polarization observations are reported for four Mira variables and the semiregular variable L2 Pup. The polarization has been observed to change, across at least one of the two TiO bands studied, in R Car, R Cen, S Lep, and L2 Pup. This is most likely due to the variation of the source function and the ratio of absorption to scattering as a function of optical depth in the stellar photosphere. In L2 Pup the polarization also varies across the Ca I 4226-A line, indicating that Ca I is unevenly distributed across the stellar surface. Publication: The Astronomical Journal Pub Date: July 1980 DOI: 10.1086/112751 Bibcode: 1980AJ.....85..875C Keywords: Late Stars; Linear Polarization; Polarimetry; Stellar Atmospheres; Variable Stars; Bandpass Filters; Calcium; Mira Variables; Molecular Spectra; Semiregular Variable Stars; Stellar Luminosity; Stellar Structure; Titanium Oxides; Astrophysics full text sources ADS | data products SIMBAD (13)
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