Ref: SCART-2021-0024

Rotational Variability in the TESS Light Curve of 21 Com

Monier, R. ; Lampens, P.

published in Research Notes of the American Astronomical Society, 4 issue 7, pp. 121 (2020)

Abstract: We present an analysis of the TESS-based light curve of the chemically peculiar A-type (Ap) star 21 Com (HD 108945). We used the simple aperture photometry light curve with a time span of 27 days. A least-squares fit to the data with 10 harmonics yields a frequency of 0.48726 day$^{-1}$, which corresponds to a rotational period of 2.05229 days. Furthermore, we find no evidence of any short-term variability beyond the pure rotational signature.

Keyword(s): Chemically peculiar stars ; Stellar rotation
DOI: 10.3847/2515-5172/abaa41
Links: link

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

 Record created 2021-01-21, last modified 2021-02-09