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Short Time Light Variations of Ap-Stars

Published online by Cambridge University Press:  12 April 2016

G. Hildebrandt ,
W. Schöneich ,
D. Lange ,
E. Želwanowa  and
A. Hempelmann
G. Hildebrandt
Affiliation:
Zentralinstitut für Astrophysik der AdW der DDRSternwarte Babelsberg DDR-1502 Potsdam-Babelsberg
W. Schöneich
Affiliation:
Zentralinstitut für Astrophysik der AdW der DDRSternwarte Babelsberg DDR-1502 Potsdam-Babelsberg
D. Lange
Affiliation:
Zentralinstitut für Astrophysik der AdW der DDRSternwarte Babelsberg DDR-1502 Potsdam-Babelsberg
E. Želwanowa
Affiliation:
Zentralinstitut für Astrophysik der AdW der DDRSternwarte Babelsberg DDR-1502 Potsdam-Babelsberg
A. Hempelmann
Affiliation:
Zentralinstitut für Astrophysik der AdW der DDRSternwarte Babelsberg DDR-1502 Potsdam-Babelsberg

Abstract

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Prom 1973 till 1981 sixteen Ap stars were investigated regarding to short time light variations with the twin telescope of the Zentralinstitut für Astrophysik stationed at the observatory Shemahka of the Academy of Science of Aserbaidshan. Only five of these stars show significant varyations with characteristical times in the region of 0.5 to 5 houres and amplitudes of about 0.01 mag. We will present here a short discussion of these five stars.

Type
Section II - Systematics, Photometry
Information
International Astronomical Union Colloquium , Volume 90: Upper Main Sequence Stars with Anomalous Abundances , 1986 , pp. 189 - 190
Copyright
Copyright © Reidel 1986