ScholarLens Back to search
1972•NASA Technical Reports Server (NASA)Requires access

Ultraviolet observations of beta Canis majoris and beta Cephei

D. Fischel, W. M. Sparks

Open publisher page 0 citations

Abstract

Ultraviolet spectra of the two variables exhibit periodic variations in the H I, Si IV, and C IV resonance lines. Later scans of the beta Cep atmosphere show that the C IV line disappeared for short periods. Three possible mechanisms for this effect are: a beat phenomenon, shock waves, or tidal distortions. It is concluded that a tidal distortion is possible if the period of revolution is 12 days and if the inclination is sufficiently small to keep one tidal bulge out of sight and large enough to keep the secondary from eclipsing the primary bulge.

About this research paper

What this paper is about

Ultraviolet spectra of the two variables exhibit periodic variations in the H I, Si IV, and C IV resonance lines. Later scans of the beta Cep atmosphere show that the C IV line disappeared for short periods. Three possible mechanisms for this effect are: a beat phenomenon, shock waves, or tidal distortions. It is concluded that a tidal distortion is possible if the period of revolution is 12 days and if the inclination is sufficiently small to keep one tidal bulge out of sight and large enough to keep the secondary from eclipsing the primary bulge.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Ultraviolet spectra of the two variables exhibit periodic variations in the H I, Si IV, and C IV resonance lines. Later scans of the beta Cep atmosphere show that the C IV line disappeared for short periods. Three possible mechanisms for this effect are: a beat phenomenon, shock waves, or tidal distortions. It is concluded that a tidal distortion is possible if the period of revolution is 12 days and if the inclination is sufficiently small to keep one tidal bulge out of sight and large enough to keep the secondary from eclipsing the primary bulge.

Key concepts: Physics, BETA (programming language), Astrophysics, Ultraviolet, Astronomy, Spectral line, Optics, Computer science

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Ultraviolet observations of beta Canis majoris and beta Cephei — Research Paper | ScholarLens