H-ALPHA POSITION DETERMINATION OF THE BINARY CIRCINUS X-1

被引：9

作者：

DUNCAN, AR ^{[1
]}

STEWART, RT ^{[1
]}

HAYNES, RF ^{[1
]}

机构：

[1] CSIRO,AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 265卷 / 01期

关键词：

LINE; PROFILES; BINARIES; CLOSE; STARS; INDIVIDUAL; CIRCINUS X-I; ISM; JETS AND OUTFLOWS;

D O I：

10.1093/mnras/265.1.157

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Circinus X-1 was observed using the Anglo-Australian Telescope and RGO spectrograph on 1992 May 31 (approximate orbital phase 300-degrees), with seeing conditions of approximately 1 arcsec. Halpha emission was detected from an m(upsilon) approximately 20.5, reddened star at a position 1.45 +/- 0.15 arcsec south of star 'L'. This Halpha position for Circinus X-1 is in good agreement with an earlier VLBI measurement and a recent photometric and visual identification. The Doppler velocity of the Halpha peak is found to be 150 +/- 50 km s-1, with the profile appearing skewed towards shorter wavelengths. The striking resemblance between this profile and the 'stationary' Halpha profile of SS 433 may be further evidence for jet-like activity from Circinus X-1.

引用

页码：157 / 160

页数：4

共 11 条

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