Confirmation of the oblique pulsator model for the rapidly oscillating AP star HR 3831

Details Confirmation of the oblique pulsator model for the rapidly oscillating AP star HR 3831 Confirmation of the oblique pulsator model for the rapidly oscillating AP star HR 3831

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.300l..39b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 300, Issue 4, pp. L39-L42.

Other

12

Stars: Chemically Peculiar, Stars: Individual: Hr 3831, Stars: Oscillations, Stars: Variables: Other

Scientific paper

We have detected pulsational radial velocity variations in the rapidly oscillating Ap star HR 3831 which are amplitude- and phase-modulated in the same manner as the photometric variations. In particular, the radial velocities show the same 180 deg phase reversal at magnetic quadrature as the photometric variations. This confirms the oblique pulsator model, and rules out the spotted pulsator model for these stars.

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