KIC 3240411 - the hottest known SPB star with the asymptotic g-mode period spacing

Abstract

We report the discovery of the hottest hybrid B--type pulsator, KIC\,3240411, that exhibits the period spacing in the low--frequency range. This pattern is associated with asymptotic properties of high-order gravity (g) modes. Our seismic modelling made simultaneously with the mode identification shows that dipole axisymmetric modes best fit the observations. Evolutionary models are computed with MESA code and pulsational models with the linear non-adiabatic code employing the traditional approximation to include the effects of rotation. The problem of mode excitation is discussed. We confirm that significant modification is indispensable to explain an instability of both pressure and gravity modes in the observed frequency ranges of KIC\,3240411.

publisched in MNRAS

References in corpus (12)

• Modules for Experiments in Stellar Astrophysics (MESA)
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Present-day cosmic abundances. A comprehensive study of nearby early B-type stars and implications for stellar and Galactic evolution and interstellar dust models
• Signatures of internal rotation discovered in the Kepler data of five slowly pulsating B stars
• Gravito-inertial and pressure modes detected in the B3 IV CoRoT target HD 43317
• A detection threshold in the amplitude spectra calculated from Kepler data obtained during K2 mission
• Finding binaries among Kepler pulsating stars from phase modulation of their pulsations
• KIC 10526294: a slowly rotating B star with rotationally split, quasi-equally spaced gravity modes
• The Classificiation of Kepler B star Variables
• Interpretation of the BRITE oscillation data of the hybrid pulsator $\nu$ Eridani: a call for the modification of stellar opacities
• Excitation and visibility of slow modes in rotating B-type stars

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