NEW-WHOLE-EARTH-TELESCOPE OBSERVATIONS OF CD-24-7599 - STEPS TOWARDS DELTA-SCUTI-STAR SEISMOLOGY

Authors
HANDLER G PIKALL H ODONOGHUE D BUCKLEY DAH VAUCLAIR G CHEVRETON M GIOVANNINI O KEPLER SO GOODE PR PROVENCAL JL WOOD MA CLEMENS JC OBRIEN MS NATHER RE WINGET DE KLEINMAN SJ KANAAN A WATSON TK NITTA A MONTGOMERY MH KLUMPE EW BRADLEY PA SULLIVAN DJ WU K MARAR TMK SEETHA S ASHOKA BN MAHRA HS BHAT BC BABU VC LEIBOWITZ EM HEMAR S IBBETSON PA MASHAL E MEISTAS EG DZIEMBOWSKI WA PAMYATNYKH AA MOSKALIK P ZOLA S PAJDOSZ G KRZESINSKI J SOLHEIM JE BARD S MASSACAND CM BREGER M GELBMANN MJ PAUNZEN E NORTH P
Citation
G. Handler et al., NEW-WHOLE-EARTH-TELESCOPE OBSERVATIONS OF CD-24-7599 - STEPS TOWARDS DELTA-SCUTI-STAR SEISMOLOGY, Monthly Notices of the Royal Astronomical Society, 286(2), 1997, pp. 303-314
Citations number
32
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
286
Issue
2
Year of publication
1997
Pages
303 - 314
Database
ISI
SICI code
0035-8711(1997)286:2<303:NOOC-S>2.0.ZU;2-T
Abstract
92 h of new Whole Earth Telescope observations have been acquired for the delta Scuti star CD-24 7599. All the seven pulsation modes reporte d by Handler et al. are confirmed. However, significant amplitude vari ations which are not caused by beating of closely spaced frequencies o ccurred within two years. Analysing the combined data of both WET runs , we detect six further pulsation modes, bringing the total number up to 13. We also examine our data for high-frequency pulsations similar to those exhibited by rapidly oscillating Ap stars, but we do not find convincing evidence for variability in this frequency domain.