MOST observations of the Herbig Ae δ-Scuti star HD 34282

Abstract

MOST observations and model analysis of the Herbig Ae star HD 34282 (V1366 Ori) reveal δ-Scuti pulsations. 22 frequencies are observed, 10 of which confirm those previously identified by Amado et al. (2006), and 12 of which are newly discovered in this work. We show that the weighted-average frequency in each group fits the radial p-mode frequencies of viable models. We argue that the observed pulsation spectrum extends just to the edge to the acoustic cut-off frequency and show that this also is consistent with our best-fitting models.

10 pages, 9 figures

References in corpus (8)

• YREC: The Yale Rotating Stellar Evolution Code
• Radial and Nonradial Oscillation Modes in Rapidly Rotating Stars
• The acoustic cut-off frequency of the Sun and the solar magnetic activity cycle
• An asteroseismic study of the Delta Scuti star 44 Tau
• MOST photometry of the enigmatic PMS pulsator HD 142666
• Erratum: "Post-T Tauri Stars in the Nearest OB Association" (AJ, 124, 1670 [2002])
• Rotational Splitting of Pulsational Modes
• Regular frequency patterns in the classical delta Scuti star HD 144277 observed by the MOST satellite

Cited by in corpus (11)

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• A 80 au cavity in the disk around HD 34282
• Herbig Stars: A Quarter Century of Progress
• Kepler observations of A-F pre-main sequence stars in Upper Scorpius: Discovery of six new $\delta$~Scuti and one $\gamma$~Doradus stars
• Asteroseismology of the Double-Mode High-Amplitude $\delta$ Scuti Star VX Hydrae
• Regular frequency patterns in the young delta Scuti star HD 261711 observed by the CoRoT and MOST satellites
• Discovery of δ Scuti Pulsations in the Young Hybrid Debris Disk Star HD 156623
• Searching for $\delta$ Scuti-type pulsation and characterising northern pre-main-sequence field stars