SIMBAD references

2024RNAAS...8...98S - Research Notes of the AAS, 8, 98 (2024/April-0)

The Hybrid Debris Disk Host Star HD 21997 is a High-frequency Delta Scuti Pulsator.

SEPULVEDA A.G., BEDDING T.R., MURPHY S.J., MATRA L., HUBER D. and ZHANG Z.

Abstract (from CDS):

HD 21997 is host to a prototypical “hybrid” debris disk characterized by debris disk-like dust properties and a CO gas mass comparable to a protoplanetary disk. We use Transiting Exoplanet Survey Satellite time series photometry to demonstrate that HD 21997 is a high-frequency delta Scuti pulsator. If the mode identification can be unambiguously determined in future works, an asteroseismic age of HD 21997 may become feasible.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Delta Scuti variable stars - Stellar pulsations - Variable stars

Simbad objects: 1

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