HD-9289 - A NEW RAPIDLY OSCILLATING AP-STAR SIMILAR TO THE WELL-STUDIED, MULTIPERIODIC ROAP-STAR HR-1217

被引：12

作者：

KURTZ, DW

MARTINEZ, P

TRIPE, P

机构：

[1] Department of Astronomy, University of Cape Town, Rondebosch

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1994年 / 271卷 / 02期

关键词：

STARS; CHEMICALLY PECULIAR; INDIVIDUAL; HD; 9289; OSCILLATIONS;

D O I：

10.1093/mnras/271.2.421

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

HD 9289 is a newly discovered, rapidly oscillating Ap star - the 26th one known. We present a frequency analysis of 80 h of high-speed photometric observations obtained on 22 nights from 1993 August to 1994 January. HD 9289 pulsates in several modes of consecutive overtone, or in alternating even and odd and modes. Rotational amplitude modulation may also be present. This star is similar to the very interesting and well-studied roAp star HR 1217. A multisite observing campaign will be necessary to solve the frequency spectrum.

引用

页码：421 / 426

页数：6

共 12 条

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