CONFIRMATION OF THE OBLIQUE PULSATOR MODEL FOR THE RAPIDLY OSCILLATING AP STAR HR-3831

Authors
BALDRY IK KURTZ DW BEDDING TR
Citation
Ik. Baldry et al., CONFIRMATION OF THE OBLIQUE PULSATOR MODEL FOR THE RAPIDLY OSCILLATING AP STAR HR-3831, Monthly Notices of the Royal Astronomical Society, 300(4), 1998, pp. 39-42
Citations number
19
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
300
Issue
4
Year of publication
1998
Pages
39 - 42
Database
ISI
SICI code
0035-8711(1998)300:4<39:COTOPM>2.0.ZU;2-2
Abstract
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 r adial velocities show the same 180 degrees phase reversal at magnetic quadrature as the photometric variations. This confirms the oblique pu lsator model, and rules out the spotted pulsator model for these stars .