Spectral line profiles changed by dust scattering in heavily obscured young stellar objects
arXiv:1207.2576 · doi:10.1051/0004-6361/201219768
Abstract
It is known that scattering of radiation by circumstellar dust can strongly change the line profiles in stellar spectra. This hampers the analysis of spectral lines originating in the emitting regions of heavily obscured young stars. To calculate the line profile of the scattered radiation, we suggest to use the approximation of remote scattering particles. This approximation assumes that the scattering dust grains are at a distance from the star that is much larger than the characteristic size of the emitting region. Using this method, we calculated the line profiles of several simple models. They show the H alpha line profiles of Herbig AeBe stars in the presence and absence of motionless or moving dust.
References in corpus (1)
Cited by in corpus (7)
- AA Tau's sudden and long-lasting deepening: enhanced extinction by its circumstellar disk
- Geometry and velocity structure of HD 44179's bipolar jet
- LBT/LUCIFER near-infrared spectroscopy of PV Cephei. An outbursting young stellar object with an asymmetric jet
- The SELGIFS data challenge: generating synthetic observations of CALIFA galaxies from hydrodynamical simulations
- Dynamics of wind and the dusty environments in the accreting T Tauri stars RY Tau and SU Aur
- Inhomogeneous dust eclipses in young stars. The case of CQ Tauri
- Observations of UX Ori in deep minima with the Nordic Optical Telescope. I. Analysis of spectral lines