Regular Article - Plasma Physics
New analysis of Balmer line shapes in magnetic white dwarf atmospheres
Aix-Marseille Université, CNRS, PIIM UMR 7345, F-13397, Marseille Cedex 20, France
2 Department of Physics, IISER Bhopal, 462066, Bhopal, India
Accepted: 29 January 2021
Published online: 17 February 2021
We present an analysis of hydrogen Balmer line shapes observed in a white dwarf spectrum taken from the SDSS database. The spectrum presents lines with a triplet structure, featuring the presence of a strong magnetic field. Using a spectrum fitting model, we estimate the effective temperature of the star and we estimate the magnetic field present in the atmosphere. We also estimate the electron density from Stark broadening calculations.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021