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arXiv 1102.4717astro-ph.IM
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Swift/UVOT紫外定标的改进

An Updated Ultraviolet Calibration for the Swift/UVOT

A. A. Breeveld, W. Landsman, S. T. Holland, P. Roming, N. P. M. Kuin, M. J. Page

摘要:

我们提出了一个更新的校准的斯威夫特/UVOT宽带紫外线(uvw 1,uvm 2和uvw 2)过滤器。新的校准解释了在所有滤光片中观察到的UVOT灵敏度每年下降约1%的情况,并使用了具有更广泛颜色范围和HST分光光度法的额外校准源。本文介绍了新的有效面积曲线和仪器光度零点,并与以前的校准进行了比较。

英文摘要:

We present an updated calibration of the Swift/UVOT broadband ultraviolet (uvw1, uvm2, and uvw2) filters. The new calibration accounts for the ~1% per year decline in the UVOT sensitivity observed in all filters, and makes use of additional calibration sources with a wider range of colours and with HST spectrophotometry. In this paper we present the new effective area curves and instrumental photometric zeropoints and compare with the previous calibration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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