Work

A Statistical Study of the Si IV Resonance Line Parameters in 19 Be Stars

Year: 2011

Type: article

Abstract: Using the GR model, we analyze the ultraviolet Si IV resonance lines in the spectra of 19 Be stars of different spectral subtypes, in order to detect the presence of absorption components and to analyze their characteristics. From this analysis we can calculate the values of a group of physical parameters, such as the apparent rotational and radial velocities, the random velocities of the ion thermal motions, as well as the absorbed energy and the logarithm of the column density of the independent regions of matter which produce the main and the satellite components of the studied spectral lines.

Source: Open Astronomy

DOI: 10.1515/astro-2017-0334

Authors: A. Antoniou, E. Danezis, E. Lyratzi, D. Stathopoulos, M. S. Dimitrijević

Institutions: University of Peloponnese, National and Kapodistrian University of Athens, Eugenides Foundation, Observatoire de Paris, Astronomical Observatory

Language: English

Topic: Stellar, planetary, and galactic studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $1,187

Funder: National and Kapodistrian University of Athens