WHOLE EARTH TELESCOPE OBSERVATIONS OF THE DAV WHITE-DWARF G226-29

被引：38

作者：

KEPLER, SO

GIOVANNINI, O

WOOD, MA

NATHER, RE

WINGET, DE

KANAAN, A

KLEINMAN, SJ

BRADLEY, PA

PROVENCAL, JL

CLEMENS, JC

CLAVER, CF

WATSON, TK

YANAGIDA, K

KRISCIUNAS, K

MARAR, TMK

SEETHA, S

ASHOKA, BN

LEIBOWITZ, E

MENDELSON, H

MAZEH, T

MOSKALIK, P

KRZESINSKI, J

PAJDOSZ, G

ZOLA, S

SOLHEIM, JE

EMANUELSEN, PI

DOLEZ, N

VAUCLAIR, G

CHEVRETON, M

FREMY, JR

BARSTOW, MA

SANSOM, AE

TWEEDY, RW

WICKRAMASINGHE, DT

FERRARIO, L

SULLIVAN, DJ

VANDERPEET, AJ

BUCKLEY, DAH

CHEN, AL

机构：

[1] FLORIDA INST TECHNOL, DEPT PHYS & SPACE SCI, MELBOURNE, FL 32901 USA

[2] UNIV TEXAS, MCDONALD OBSERV, AUSTIN, TX 78712 USA

[3] UNIV TEXAS, DEPT ASTRON, AUSTIN, TX 78712 USA

[4] JOINT ASTRON CTR, HILO, HI 96720 USA

[5] ISRO, CTR SATELLITE, DIV TECH PHYS, BANGALORE 560017, KARNATAKA, INDIA

[6] TEL AVIV UNIV, SACKLER FAC EXACT SCI, WISE OBSERV, IL-69978 TEL AVIV, ISRAEL

[7] POLISH ACAD SCI, COPERNICUS ASTRON CTR, PL-00716 WARSAW, POLAND

[8] CRACOW PEDAG UNIV, INST PHYS, PL-30084 KRAKOW, POLAND

[9] JAGIELLONIAN UNIV, ASTRON OBSERV, PL-30224 KRAKOW, POLAND

[10] UNIV TROMSO, INST MATEMAT REALFAG, N-9037 TROMSO, NORWAY

[11] OBSERV MIDI PYRENEES, F-31400 TOULOUSE, FRANCE

[12] CERFACS, F-31400 TOULOUSE, FRANCE

[13] OBSERV PARIS, F-92195 PARIS, FRANCE

[14] UNIV LEICESTER, DEPT PHYS & ASTRON, LEICESTER LE1 7RH, LEICS, ENGLAND

[15] AUSTRALIAN NATL UNIV, DEPT MATH, CANBERRA, ACT, AUSTRALIA

[16] VICTORIA UNIV WELLINGTON, DEPT PHYS, WELLINGTON, NEW ZEALAND

[17] UNIV CAPE TOWN, DEPT ASTRON, RONDEBOSCH 7700, SOUTH AFRICA

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 447卷 / 02期

关键词：

STARS; INDIVIDUAL; (G226-29); OSCILLATIONS; ROTATION; WHITE DWARFS;

D O I：

10.1086/175924

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We observed G226-29 for 121 hr in 1992 February and confirm the presence of the three previously identified frequencies close to 109 s. We find no evidence of other pulsation periods down to our noise level of about 0.35 millimodulation amplitudes. The presence of only one triplet pulsation mode in G226-29 and its effective temperature near the blue edge of the instability strip identify the observed triplet of modes near 109 s as rotationally split components of the k = 1, I = 1 mode. With the mode identification, we derived a rotation period of 8.9 hr and an inclination of the pulsation axis of 70 degrees-75 degrees to our line of sight.

引用

页码：874 / 879

页数：6

共 30 条

[1] THE MAGNETIC-FIELDS OF WHITE-DWARFS [J].