未找到相关数据
INFRARED-SPECTROSCOPY OF CATACLYSMIC VARIABLES
被引：34
作者：
DHILLON, VS
MARSH, TR
机构：
[1] UNIV SOUTHAMPTON,DEPT PHYS,SOUTHAMPTON SO17 1BJ,HANTS,ENGLAND
[2] UNIV SUSSEX,SCH MATH & PHYS SCI,CTR ASTRON,BRIGHTON BN1 9QH,E SUSSEX,ENGLAND
[3] NUCL & ASTROPHYS LAB,OXFORD OX1 3RH,ENGLAND
关键词：
ACCRETION;
ACCRETION DISCS;
BINARIES;
SPECTROSCOPIC;
STARS;
FUNDAMENTAL;
PARAMETERS;
INDIVIDUAL;
V471;
TAU;
NOVAE;
CATACLYSMIC VARIABLES;
INFRARED;
D O I：
10.1093/mnras/275.1.89
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the results of an exploratory spectroscopic survey of cataclysmic variables in the infrared part of the spectrum (1.0-2.5 mu m). The spectra show strong Paschen, Bracket and He I emission lines from the accretion disc, and CO bands and neutral metal lines from the secondary star. We use these features to determine the spectral types of the secondary stars, and find that they are in broad agreement with optical estimates and are later than expected for their periods. In addition, we report the possible detection of enhanced (CO)-C-13 in the detached system V471 Tau, which if confirmed provides firm support for the theory of common-envelope evolution.
引用
收藏
页码：89 / 99
页数：11
相关论文