The Optical Gravitational Lensing Experiment. OGLE-III Long Term Monitoring of the Gravitational Lens QSO 2237+0305

The Optical Gravitational Lensing Experiment. OGLE-III Long Term Monitoring of the Gravitational Lens QSO 2237+0305
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光学引力透镜实验。

DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
T. Wiȩckowski
T. Wiȩckowski
中科院分区:
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文献类型:
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作者:
A. Udalski;M. Szymański;M. Kubiak;G. Pietrzyński;I. Soszyński;K. Żebruń;O. Szewczyk;L. Wyrzykowski;K. Ulaczyk;T. Wiȩckowski

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本文介绍了OGLE巡天期间对类星体2237+0305引力透镜的长期观测结果。在OGLE项目的第二阶段(OGLE-II; 1997-2000年)期间获得的所有四个组件的透镜的光变曲线与OGLE-III阶段在2001-2006年的观测季节收集的数据进行了补充。校准程序,以配合新的OGLE-III数据与已经校准的OGLE-II光变曲线进行说明。由此产生的均匀OGLE数据集是引力透镜类星体2237+0305最广泛的测光覆盖范围,跨越了十年-从1997年到2006年的季节-并揭示了这个壮观物体独特的微透镜活动。 OGLE收集的引力透镜类星体2237+0305的所有测光数据都可以从OGLE互联网档案库中提供给天文学界。
We present results of the long term monitoring of the gravitational lens QSO 2237+0305 conducted during the OGLE survey. Light curves of all four components of the lens obtained during the second phase of the OGLE project (OGLE-II; 1997-2000) are supplemented with the data collected in the OGLE-III phase in the observing seasons 2001-2006. Calibration procedures to tie the new OGLE-III data with already calibrated OGLE-II light curves are described. The resulting homogeneous OGLE data set is the most extensive photometric coverage of the gravitational lens QSO 2237+0305, spanning now one decade - the seasons from 1997 to 2006 - and revealing unique microlensing activity of this spectacular object. All photometric data of the gravitational lens QSO 2237+0305 collected by OGLE are available to the astronomical community from the OGLE Internet archive.