Year: 2025
Type: conference-paper
Abstract: This paper contains interpretation of observations of the dust envelope of a red supergiant μ. Cep by differential speckle polarimetry in the visible range at a wavelength of 625 nm. The presence of a compact shell with an inner radius of 15 a. u. and a mass of 9 · 10−6 MꙨ, as well as a side cloud at a distance of 100 a. u. and a mass of 5 · 10−7 MꙨ is shown. Dust composition: silicates with a magnesium content of 80 %, the distribution of dust particles by radii obeys the power law with degree -4.2, in the range from 5 to 60 nm.
Author: A. E. Fedotova
Institution: Lomonosov Moscow State University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4412585108