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2023RNAAS...7..198W - Research Notes of the AAS, 7, 198 (2023/September-0)
Photometric Update of δ Scuti Stars: ZZ Microscopium.
WADHWA S.S., DE HORTA A.Y., TOTHILL N.F.H. and FILIPOVIC M.D.
Abstract (from CDS):
Multi-color CCD photometric update of the bright high amplitude δ Scuti star ZZ Microscopium (ZZ Mic) is presented. We find that the B band has the highest amplitude at 0.47 mag while the V band amplitude is smaller at 0.38 mag. The revised pulsation period 0.06717850 day is similar to most recent previous estimates. We did not detect secondary mode pulsations. We find the temperature of the star varies by 720 K during pulsations and its radius changes by 0.1 R☉. We estimate the mass of ZZ Mic as 1.93 M☉ and surface gravity g as 4.19.
Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.
Journal keyword(s): Delta Scuti variable stars
Simbad objects: 3
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