Astrometric Perturbations in Substructure Lensing
نویسندگان
چکیده
منابع مشابه
Astrometric Perturbations in Substructure Lensing
In recent years, gravitational lensing has been used as a means to detect substructure in galaxysized halos, via anomalous flux ratios in quadruply-imaged lenses. In addition to causing anomalous flux ratios, substructure may also perturb the positions of lensed images at observable levels. In this paper, we numerically investigate the scale of such astrometric perturbations using realistic mod...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2007
ISSN: 0004-637X,1538-4357
DOI: 10.1086/512002