DISCOVERY AND SEISMOLOGICAL INTERPRETATION OF LOW-AMPLITUDE MODES IN THE PULSATING DO WHITE-DWARF PG-1707+427 (V817 HERCULIS)

被引：21
作者：
FONTAINE, G
BERGERON, P
VAUCLAIR, G
BRASSARD, P
WESEMAEL, F
KAWALER, SD
GRAUER, AD
WINGET, DE
机构：
[1] OBSERV MIDI PYRENEES,F-31400 TOULOUSE,FRANCE
[2] UNIV TEXAS,DEPT ASTRON,AUSTIN,TX 78712
[3] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011
[4] UNIV ARKANSAS,DEPT PHYS & ASTRON,LITTLE ROCK,AR 72204
来源：
ASTROPHYSICAL JOURNAL | 1991年 / 378卷 / 02期
关键词：
STARS; INTERIORS; PULSATION; WHITE DWARFS;
D O I：
10.1086/186139
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the discovery of low-amplitude pulsation modes in the faint variable DO white dwarf PG 1707 + 427 (V817 Her). With the large aperture of the CFHT, enough modes were uncovered to allow us to derive a preliminary asteroseismological estimate of the mass of the star of approximately 0.7 M.. This assumes that the modes observed have a spherical harmonic index l = 1.
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页码：L49 / L52
页数：4
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