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2021RNAAS...5..251M - Research Notes of the AAS, 5, 251 (2021/October-0)

The Rapid Far-ultraviolet Variability of ET And and Its Rotational Period.

MONIER R. and LAMPENS P.

Abstract (from CDS):

Evidence is presented that the far-ultraviolet flux of ET And (A0Vp SiSr) recorded by the International Ultraviolet Explorer was variable over a timescale of about one hour on 1979 August 7. In contrast, the spectra taken over 9 hr on 1979 August 3 do not show any flux variability. This behavior is discussed using the light curve of ET And recently acquired with TESS. We also derive a refined rotational period, Prot = 1.618845 ± 0.000006 days, from the detrended TESS light curve.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Chemically peculiar stars

Simbad objects: 1

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