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Ultraviolet spectrum of CH Cygni and VV Cephei

Abstract

Results are discussed for low-resolution uv observations of the symbiotic star CH Cyg and of the eclipsing binary VV Cep during chromospheric eclipse following totality. The far-uv and absorption-line spectra of CH Cyg and VV Cep are found to be remarkably similar. It is shown that the energy distribution for CH Cyg is very similar to that of an A0 V star and that the energy distribution for VV Cep is similar to that of an A0-A2 star. Evidence is cited for an extended envelope surrounding the M supergiant component of VV Cep, and an absolute visual magnitude of about -2 is estimated for this system.
Authors:
Faraggiana, R; [1]  Hack, M [2] 
  1. Osservatorio Astronomico, Trieste, Italy
  2. ESA, Villafranca Satellite Tracking Station, Madrid, Spain
Publication Date:
Jun 01, 1979
Product Type:
Journal Article
Reference Number:
EDB-82-051601
Resource Relation:
Journal Name: Soc. Astron. Ital., Mem.; (Italy); Journal Volume: 50
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BINARY STARS; ECLIPSE; STELLAR ATMOSPHERES; ULTRAVIOLET SPECTRA; CHROMOSPHERE; ATMOSPHERES; SOLAR ATMOSPHERE; SPECTRA; STARS; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources
OSTI ID:
5722216
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MSATA
Submitting Site:
IAA
Size:
Pages: 207-209
Announcement Date:
Aug 01, 1981

Citation Formats

Faraggiana, R, and Hack, M. Ultraviolet spectrum of CH Cygni and VV Cephei. Italy: N. p., 1979. Web.
Faraggiana, R, & Hack, M. Ultraviolet spectrum of CH Cygni and VV Cephei. Italy.
Faraggiana, R, and Hack, M. 1979. "Ultraviolet spectrum of CH Cygni and VV Cephei." Italy.
@misc{etde_5722216,
title = {Ultraviolet spectrum of CH Cygni and VV Cephei}
author = {Faraggiana, R, and Hack, M}
abstractNote = {Results are discussed for low-resolution uv observations of the symbiotic star CH Cyg and of the eclipsing binary VV Cep during chromospheric eclipse following totality. The far-uv and absorption-line spectra of CH Cyg and VV Cep are found to be remarkably similar. It is shown that the energy distribution for CH Cyg is very similar to that of an A0 V star and that the energy distribution for VV Cep is similar to that of an A0-A2 star. Evidence is cited for an extended envelope surrounding the M supergiant component of VV Cep, and an absolute visual magnitude of about -2 is estimated for this system.}
journal = []
volume = {50}
journal type = {AC}
place = {Italy}
year = {1979}
month = {Jun}
}