Methods for the restoration of the radial brightness distribution across a stellar disk from speckle interferometric data and its application to the analysis of Alpha Orion observations

Details Methods for the restoration of the radial brightness distribution across a stellar disk from speckle interferometric data and its application to the analysis of Alpha Orion observations Methods for the restoration of the radial brightness distribution across a stellar disk from speckle interferometric data and its application to the analysis of Alpha Orion observations

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988azh....65.1187b&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 65, Nov.-Dec. 1988, p. 1187-1195. In Russian.

Astronomy and Astrophysics

Astronomy

1

Brightness Distribution, Speckle Interferometry, Supergiant Stars, Variable Stars, Absorption Spectra, Radial Distribution, Stellar Atmospheres, Titanium Oxides

Scientific paper

The methods of restoration of the radial brightness distribution across a stellar disk from an analysis of speckle interferometric data in the case of circular symmetry are proposed. These methods are based on modern numerical methods of solution of ill-posed problems. The application of these methods to α Ori allows to find the brightness distributions for the TiO absorption band and the neighbouring continuum. The results do not contradict the assumption that this star has a near-by dust envelope located inside the extended atmosphere.

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