Non-LTE calculations of radiative forces for thallium in the atmospheres of HgMn stars

CR Proffitt, Tomas Brage, DS Leckrone

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

Recent observations by the Goddard High-Resolution Spectrograph on the Rubble Space Telescope have dramatically improved our knowledge of the abundance of the heaviest elements in Mercury-Manganese (HgMn) stars (c.f. Leckrone et al. 1992 and Wahlgren et al. 1995). Explaining the observed abundance and isotope anomalies requires improved calculations of radiatively driven diffusion. We briefly review the physical assumptions and numerical techniques needed for radiative force calculations in stellar atmospheres, and then discuss results of radiative diffusion calculations for the element thallium in the atmosphere of the HgMn star chi Lupi.
Original languageEnglish
Title of host publicationM.A.S.S.-- Model Atmospheres and Stellar Spectra: 5th Vienna - Workshop (Astronomical Society of the Pacific Conference Series)
PublisherAstronomical Society of the Pacific (ASP)
Pages103-108
Volume108
ISBN (Print)1-886733-28-7
Publication statusPublished - 1996
Externally publishedYes
Event5th Vienna Workshop on Model Atmospheres and Spectrum Synthesis (M A S S) - Vienna, Austria
Duration: 1995 Jul 61995 Jul 11

Publication series

Name
Volume108

Conference

Conference5th Vienna Workshop on Model Atmospheres and Spectrum Synthesis (M A S S)
Country/TerritoryAustria
CityVienna
Period1995/07/061995/07/11

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Physics, science (011013100)

Subject classification (UKÄ)

  • Physical Sciences

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