SIMBAD references

2026AJ....171..170F - Astron. J., 171, 170 (2026/March-0)

Eight Phase-step δ Scuti Variables in TESS Data.

FELVUS-RICHMOND S. and HINTZ E.G.

Abstract (from CDS):

Analysis of the previously classified delta Scuti variable star MW Camelopardalis using data from the Transiting Exoplanet Survey Satellite sparked a deeper inquiry due to unexpected patterns within the target's observed - calculated (O - C) diagram. The shape could be seen as either a saw-toothed pattern or a set of steps. The pattern was found to be replicated in the O - C diagrams of seven additional targets: TIC 17931346, TIC 44845403, TIC 123580083, TIC 173503902, TIC 302394816, TIC 194944219m and TIC 396465600. The Q value for the targets, their position in the δ Scuti star Leavitt Law, and their location in the instability strip show these objects to be low-mass, fundamental mode pulsators. Seven of the eight stars fill the full range between the blue and red edges of the fundamental-mode instability strip.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Pulsating variable stars - Delta Scuti variable stars - Short period variable stars

Simbad objects: 15

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