Work

Modeling Spectra of AF And in The Hot State

Year: 2025

Type: conference-paper

Abstract: We present the results of radiative transfer modeling with non-LTE CMFGEN code of spectra of luminous blue variable AF And in M 31 galaxy. In order to approximate the observed emission lines intensities of hydrogen, neutral helium and numerous lines of nitrogen we created the spherically symmetric model of extended atmosphere with wind clumping effect taken into account. Here we discuss the problem of degeneracy of the reproducing the observed intensities of hydrogen lines relative to the parameters “hydrogen mass fraction-mass loss rate” and introduce stellar fundamental parameters estimates.

Source: Physics of Space: All-Russian Student Scientific Conference with International Participation

DOI: 10.15826/b978-5-7996-3986-0.48

Authors: E. O. Dedov, A. E. Kostenkov, A. S. Vinokurov

Institutions: Russian Academy of Sciences, Special Astrophysical Observatory

Language: English

Topic: Stellar, planetary, and galactic studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4412584993

FWCI:

Cites: 15

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Related to: 10