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New Caltech Instrument Poised to Image the Cosmic Web
New Caltech Instrument Poised Image Cosmic Web
2017/2/16
An instrument designed to image the vast web of gas that connects galaxies in the universe shipped early this morning, Jan. 12, from Los Angeles to Hawaii, where it will be integrated into the W. M. K...
The intergalactic medium unveiled: Caltech's Cosmic Web Imager
The intergalactic medium unveiled Caltech's Cosmic Web Imager
2014/5/13
Caltech astronomers have taken unprecedented images of the intergalactic medium (IGM)—the diffuse gas that connects galaxies throughout the universe—with the Cosmic Web Imager, an instrument designed ...
Astronomers have discovered a distant quasar illuminating a vast nebula of diffuse gas, revealing for the first time part of the network of filaments thought to connect galaxies in a cosmic web. Resea...
The persistent cosmic web and its filamentary structure II: Illustrations
Cosmology simulations statistics observations Galaxies: formation
2010/12/16
The recently introduced discrete persistent structure extractor (DisPerSE Soubie 2010, paper I) is implemented on realistic 3D cosmological simulations and observed redshift catalogues; it is found th...
The multi-stream flows and the dynamics of the cosmic web
cosmic web cosmological simulations cosmic flows
2010/11/12
A new numerical technique to identify the cosmic web is proposed. It is based on locating multi-stream flows, i.e. the places where the velocity field is multi-valued. The method is local in Eulerian ...
The persistent cosmic web and its filamentary structure I: Theory and implementation
Cosmology simulations statistics observations Galaxies formation
2010/12/16
We present DisPerSE, a novel approach to the coherent multi-scale identification of all types of astrophysical structures, and in particular the filaments, in the large scale distribution of matter in...