Ultraviolet Spectral Atlas of VV Cephei Virtual Observatory Resource

Authors
  1. Bauer W.H.
  2. Bennett P.D.
  3. Brown A.
  4. Published by
    CDS
Abstract

The first observations of the ultraviolet spectrum of the binary system VV Cep (M2Iab + B?) during total eclipse have been made with the HST. A rich emission-line spectrum is seen, with over two thousand emission features present. Shortward of 1600{AA}, a weak continuum presumably due to Rayleigh scattering of the hot component is present, strengthening markedly shortward of 1500{AA}. The continuum of the M supergiant becomes apparent longward of 2650{AA}. Numerous circumstellar and interstellar absorption features are also seen. We present an atlas of the spectrum from 1300-3160{AA} as observed near midtotality and at two epochs closer to egress, when gas surrounding the hot component has begun to emerge from eclipse and the flux on the short-wavelength edges of many emission lines has increased. This atlas has been annotated with line identifications. Circumstellar and interstellar absorption features seen out of eclipse remain in absorption during totality and are also annotated on the atlas. Well over 90% of the emission features have plausible identifications, but there are many blends. Only a few hundred features appear to be free enough from blending for useful measurement of the peak flux in the line. We present a list of these unblended features.

Keywords
  1. spectroscopy
  2. ultraviolet-astronomy
  3. star-atlases
  4. spectroscopic-binary-stars
Bibliographic source Bibcode
2007ApJS..171..249B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/171/249
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/171/249
Document Object Identifer DOI
doi:10.26093/cds/vizier.21710249

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/171/249
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/171/249
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/171/249
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History

2009-06-16T16:38:01Z
Resource record created
2009-06-16T16:38:01Z
Created
2009-06-16T16:45:50Z
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