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Do Herbig Ae Stars Pulsate?

Published online by Cambridge University Press:  12 April 2016

M. Marconi ,
V. Ripepi ,
J. Alcalá ,
E. Covino ,
L. Terranegra  and
F. Palla
M. Marconi
Affiliation:
Osservatorio Astronomico di Capodimonte, Via Moiariello, 16, I–80131 Napoli, Italy
V. Ripepi
Affiliation:
Osservatorio Astronomico di Capodimonte, Via Moiariello, 16, I–80131 Napoli, Italy
J. Alcalá
Affiliation:
Osservatorio Astronomico di Capodimonte, Via Moiariello, 16, I–80131 Napoli, Italy
E. Covino
Affiliation:
Osservatorio Astronomico di Capodimonte, Via Moiariello, 16, I–80131 Napoli, Italy
L. Terranegra
Affiliation:
Osservatorio Astronomico di Capodimonte, Via Moiariello, 16, I–80131 Napoli, Italy
F. Palla
Affiliation:
Osservatorio Astrofisico di Arcetri, Largo E. Fermi, 5, I–50125 Firenze, Italy

Abstract

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We present some preliminary results of a Strömgren photometric survey searching for radially pulsating variables among Herbig Ae stars. These young objects are expected to show a characteristic δ Scuti variability when entering the instability strip along their pre-main sequence evolutionary tracks, according to the theoretical predictions by Marconi & Palla (1998). We identified at least five pulsating Herbig Ae stars with periods in the expected range. On the basis of these encouraging first results, we foresee both new more detailed observations and accurate comparisons with theoretical models.

Type
Part 6. Variables Close to the Main Sequence
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 459 - 460
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

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