Ap stars
type: Concept
narrower: Rapidly oscillating Ap star

Rapidly oscillating Ap star
type: Concept
broader: Magnetic variable stars
broader: Ap stars
modified: 2020-11-17T20:15:37.829Z
modified: 2020-11-17T20:15:27.851Z
definition: A chemically peculiar star characterized by the presence of high-frequency non-radial oscillations, with periods that range between about 4 and 16 min. These variations have periods from about 5 to 20 minutes and low amplitudes (B < 10 mmag). They are consistent with acoustic (p mode) pulsations of low degree and high radial overtone.
contributor: AAS Frey.Katie
alternative label: roAp stars
alternative label: Alpha2 Canum Venaticorum stars
alternative label: Alpha2 CVn stars

Magnetic variable stars
type: Concept
narrower: Rapidly oscillating Ap star