Ref: SCART-2022-0020

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

Monier, Richard ; Lampens, Patricia

published in Research Notes of the American Astronomical Society, 5 issue 10, pp. 251 (2021)

Abstract: 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, P_rot = 1.618845 ± 0.000006 days, from the detrended TESS light curve.

Keyword(s): Chemically peculiar stars
DOI: 10.3847/2515-5172/ac3427
Links: link

The record appears in these collections:
Royal Observatory of Belgium > Astronomy & Astrophysics
Science Articles > Non-refereed Articles

 Record created 2022-01-23, last modified 2022-01-23