The discovery of tidal tails around the globular cluster NGC 5466

被引：151

作者：

Belokurov, V ^{[1
]}

Evans, NW ^{[1
]}

Irwin, MJ ^{[1
]}

Hewett, PC ^{[1
]}

Wilkinson, MI ^{[1
]}

机构：

[1] Univ Cambridge, Astron Inst, Cambridge CB3 0HA, England

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 637卷 / 01期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

Galaxy : halo; Galaxy : kinematics and dynamics; globular clusters : individual (NGC 5466);

D O I：

10.1086/500362

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of tidal tails around the high-latitude Galactic globular cluster NGC 5466 in Sloan Digital Sky Survey data. Neural networks are used to reconstruct the probability distribution of cluster stars in ugriz space. The tails are clearly visible once extragalactic contaminants and field stars have been eliminated. They extend similar to 4 degrees on the sky, corresponding to similar to 1 kpc in projected length. The orientation of the tails is in good agreement with the cluster's Galactic orbit, as judged from the proper-motion data.

引用

页码：L29 / L32

页数：4

共 19 条

[1]

ADELMANMCCARTHY JK, 2006, IN PRESS APJS, V162

[2] Light-curve classification in massive variability surveys - II. Transients towards the Large Magellanic Cloud [J].