Far-UV spectroscopic atlas of B stars Virtual Observatory Resource

Authors
  1. Smith M.A.
  2. Published by
    CDS
Abstract

We have constructed a detailed spectral atlas covering the wavelength region 930-1225{AA} for 10 sharp-lined B0-B9 stars near the main sequence. Most of the spectra we assembled are from the archives of the Far Ultraviolet Spectroscopic Explorer satellite, but for nine stars, wavelength coverage above 1188{AA} was taken from high-resolution International Ultraviolet Explorer or echelle Hubble Space Telescope/Space Telescope Imaging Spectrograph spectra. To represent the tenth star at type B0.2V, we used the Copernicus atlas of tau Sco. We made extensive line identifications in the region 949-1225{AA} of all atomic features having published oscillator strengths at types B0, B2, and B8. These are provided as a supplementary data product-hence the term detailed atlas. Our list of found features totals 2288, 1612, and 2469 lines, respectively. We were able to identify 92%, 98%, and 98% of these features with known atomic transitions with varying degrees of certainty in these spectra. The remaining lines do not have published oscillator strengths. Photospheric lines account for 94%, 87%, and 91%, respectively, of all our identifications, with the remainder being due to interstellar (usually molecular H2) lines. We also discuss the numbers of lines with respect to the distributions of various ions for these three most studied spectral subtypes. A table is also given of 162 least blended lines that can be used as possible diagnostics of physical conditions in B star atmospheres.

Keywords
  1. star-atlases
  2. spectroscopy
  3. ultraviolet-astronomy
  4. b-stars
Bibliographic source Bibcode
2010ApJS..186..175S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/186/175
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/186/175
Document Object Identifer DOI
doi:10.26093/cds/vizier.21860175

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/186/175
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/186/175
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/186/175
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/186/175/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/186/175/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/186/175/table1?

History

2010-05-31T20:31:26Z
Resource record created
2010-05-31T20:31:26Z
Created
2017-11-29T11:48:47Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr