pith. sign in

arxiv: 0707.3347 · v1 · submitted 2007-07-23 · 🌌 astro-ph

3D spectral synthesis and rotational line broadening

classification 🌌 astro-ph
keywords broadeningrotationalfieldlineradiationspectralsynthesistreatment
0
0 comments X
read the original abstract

Spectral synthesis calculations based on three-dimensional stellar atmosphere models are limited by the affordable angular resolution of the radiation field. This hampers an accurate treatment of rotational line broadening. We aim to find a treatment of rotational broadening of a spherical star when the radiation field is only available at a modest number of limb-angles. We apply a combination of analytical considerations of the line-broadening process and numerical tests. We obtain a method which is closely related to classical flux convolution and which performs noticeably better than a previously suggested procedure. It can be applied to rigid as well as differential rotation.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Decoding the Radial Velocity Signatures of Solar Faculae with 3D MHD Simulations

    astro-ph.SR 2026-05 conditional novelty 7.0

    3D MHD simulations of solar faculae reveal a center-to-limb transition in induced radial velocity from redshift to blueshift at heliocentric angles above 60 degrees, producing a phase-lagged transit profile and spectr...