.png){kind=icon}
返回
.png){kind=icon}
.png){kind=icon}
摘要
En 中文
As the Universe expands, the redshift of distant sources changes with time. Here, we discuss gravitational lensing phenomena that are consequence of the redshift drift between lensed source, gravitational lens, and observer. When the source is located very close to the drifting caustics, a pair of images could occur (or disappear) because of the cosmological expansion. Furthermore, lensing systems act as signal converters of the redshift drift. The angular position, magnification, distortion, and time delay of already existing multiple images change. We estimate the expected frequency of these phenomena and the prospects to observe them in the era of deep and large surveys. The drift detection in image separation could be within reach of next-generation surveys with mu arcsec angular resolution.
Keyword:
gravitational lensing: strong
gravitational lensing: weak
cosmology: observations
cosmology: theory
期刊
IF:
4.8
论文数:
7.1W
被引数:
25.0W
机构
引用论文
.png){kind=icon}
分享.png){kind=icon}
收藏分享收藏Expression of Cre recombinase in early diploid trophoblast cells of the mouse placentaCre重组酶在小鼠胎盘早期二倍体滋养层细胞中的表达.png)
genesis.png)
genesisIF0
PREAI
分享收藏Weighing the Giants - III. Methods and measurements of accurate galaxy cluster weak-lensing masses
OAAI
OAAI分享收藏
查看更多内容