Quantitative analysis of the spectra of early B stars with ultrasharp lines

Geraldine J. Peters, Saul J. Adelman, Ivan Hubeny, Thierry Lanz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present selected results from an investigation that is currently underway to determine the abundances of light and Fe group elements in early B stars and assess the extent to which contemporary NLTE and LTE models represent their atmospheres. Spectral data of B stars that display ultrasharp lines, obtained with HST, FUSE, and the KPNO Coudé Feed Telescope, are compared with computations from TLUSTY/SYNSPEC and SYNTHE. The B stars include the abundance standards ι Her (B3V), HR 1886 (B1V), and HR 1887 (B0.5V).

Original languageEnglish (US)
Title of host publicationRecent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics - Proc. Int. Conf. Honor of Dimitri Mihalas for His Lifetime Sci. Contrib. Occasion of His 70th Birthday
Pages345-346
Number of pages2
DOIs
StatePublished - Dec 1 2009
EventInternational Conference in Honor of Dimitri Mihalas for His Lifetime Scientific Contributions on the Occasion of His 70th Birthday:Recent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics - Boulder, CO, United States
Duration: Mar 30 2009Apr 3 2009

Publication series

NameAIP Conference Proceedings
Volume1171
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference in Honor of Dimitri Mihalas for His Lifetime Scientific Contributions on the Occasion of His 70th Birthday:Recent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics
CountryUnited States
CityBoulder, CO
Period3/30/094/3/09

Keywords

  • Stars:Abundances
  • Stars:Atmospheres
  • Stars:Individual(HR 1886, HR 1887, ι Her)

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Peters, G. J., Adelman, S. J., Hubeny, I., & Lanz, T. (2009). Quantitative analysis of the spectra of early B stars with ultrasharp lines. In Recent Directions in Astrophysical Quantitative Spectroscopy and Radiation Hydrodynamics - Proc. Int. Conf. Honor of Dimitri Mihalas for His Lifetime Sci. Contrib. Occasion of His 70th Birthday (pp. 345-346). (AIP Conference Proceedings; Vol. 1171). https://doi.org/10.1063/1.3250077