The Q0957+561 time delay from optical data

被引：34

作者：

Schild, R ^{[1
]}

Thomson, DJ ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

ASTRONOMICAL JOURNAL | 1997年 / 113卷 / 01期

关键词：

D O I：

10.1086/118238

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results from a 3-year program of nightly brightness monitoring of the Q0957 + 561 gravitational lens system. Based upon 368 nights of data, we find from direct autocorrelation that the time delay is 404 +/- 26 days. We include a pair of illustrations showing the A and B brightness curves for our intensively sampled data; these make an interesting lecture/classroom demonstration of time delay. (C) 1997 American Astronomical Society.

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页码：130 / 135

页数：6

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