Model atmospheres and parameters of central stars of planetary nebulae

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167907· OSTI ID:5013090

Patriarchi, P; Cerruti-sola, M; Perinotto, M ^[1]

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1. Arcetri, Osservatorio Astrofisico, Florence (Italy) Firenze Universita, Florence (Italy)

Non-LTE hydrogen and helium model atmospheres have been obtained for temperatures and gravities relevant to the central stars of planetary nebulae. Low-resolution and high-resolution observations obtained by the IUE satellite have been used along with optical data to determine Zanstra temperatures of the central stars of NGC 1535, NGC 6210, NGC 7009, IC 418, and IC 4593. Comparison of the observed stellar continuum of these stars with theoretical results allowed further information on the stellar temperature to be derived. The final temperatures are used to calculate accurate stellar parameters. 62 refs.

• OSTI ID: 5013090
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 345; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ATMOSPHERES
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
DWARF STARS
EQUILIBRIUM
LTE
MATHEMATICAL MODELS
NEBULAE
PLANETARY NEBULAE
SPECTRA
STAR MODELS
STARS
STELLAR ATMOSPHERES
TEMPERATURE MEASUREMENT
ULTRAVIOLET SPECTRA
WHITE DWARF STARS