MICROLENSING OF QUASAR ULTRAVIOLET IRON EMISSION
MICROLENSING OF QUASAR ULTRAVIOLET IRON EMISSION
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类星体紫外线铁发射的微透镜
DOI：
10.1088/0004-637x/778/2/123
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
K. Rojas
中科院分区：
文献类型：
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作者：
E. Guerras;E. Guerras;E. Mediavilla;E. Mediavilla;J. Jiménez;C. S. Kochanek;J. A. Muñoz;E. Falco;Verónica Motta;K. Rojas
我们测量了13个引力透镜中的14个类星体图像对之间的UV Fe ii和Fe iii发射线混合的微分微透镜效应。我们发现，在四种情况下，紫外铁发射强烈微透镜的振幅可比的连续。统计建模的放大率，我们推断一个典型的大小光天的Fe线发射区域，这是相当的区域产生的紫外线连续（103 -7光天）的大小。这可能表明，一个显着的一部分，紫外线Fe二和Fe三发射起源于类星体吸积盘。
We measure the differential microlensing of the UV Fe ii and Fe iii emission line blends between 14 quasar image pairs in 13 gravitational lenses. We find that the UV iron emission is strongly microlensed in four cases with amplitudes comparable to that of the continuum. Statistically modeling the magnifications, we infer a typical size of light-days for the Fe line-emitting regions, which is comparable to the size of the region generating the UV continuum (∼3–7 light-days). This may indicate that a significant part of the UV Fe ii and Fe iii emission originates in the quasar accretion disk.