DETECTION OF CYCLOTRON EMISSION FEATURES IN THE INFRARED-SPECTRUM OF ST LMI

被引：32

作者：

FERRARIO, L

BAILEY, J

WICKRAMASINGHE, DT

机构：

[1] UNIV LEICESTER,DEPT ASTRON,LEICESTER LE1 7RH,ENGLAND

[2] JOINT ASTRON CTR,HILO,HI 96720

[3] ANGLO AUSTRALIAN OBSERV,EPPING,NSW 2121,AUSTRALIA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 262卷 / 02期

关键词：

RADIATION MECHANISMS; MISCELLANEOUS; BINARIES; CLOSE; STARS; INDIVIDUAL; ST LMI; MAGNETIC FIELDS; NOVAE; CATACLYSMIC VARIABLES; WHITE DWARFS;

D O I：

10.1093/mnras/262.2.285

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present near-infrared spectroscopic observations of the AM Herculis system ST LMi over the wavelength range 1.0-2.5 mum. During the bright phase of the binary cycle, broad and resolvable cyclotron emission harmonics are visible near 1.42, 1.65 and 2.0 mum. We have interpreted the features in terms of an arc-shaped cyclotron emission region consisting of a high-density, high-temperature spot with an extended leading edge of cooler and lower density material. The accretion arc is located close to the weaker pole of magnetic field strength almost-equal-to 12 MG.

引用

页码：285 / 288

页数：4

共 17 条

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