搜索结果: 1-6 共查到“天文学 baryons”相关记录6条 . 查询时间(0.093 秒)
Simulation of soft X-ray emission lines from the missing baryons
theory diff use radiation large-scale structure of universe
2014/12/24
We study the soft X-ray emission (0.1-1 keV) from the warm-hot intergalactic medium (WHIM) in a hydrodynamic simulation of a cold dark matter universe. Our main goal is to investigate how such emissio...
Galaxy-galaxy lensing constraints on the relation between baryons and dark matter in galaxies in the Red Sequence Cluster Survey 2
gravitational lensing: weak - galaxies: formation - galaxies: halos
2011/10/12
We present the results of a study of weak gravitational lensing by galaxies using imaging data that were obtained as part of the second Red Sequence Cluster Survey (RCS2). In order to compare to the b...
We suggest the existence of a fundamental connection between baryonic and dark matter. This is motivated by both the stability of these two types of matter as well as the observed similarity of their ...
Baryon-density perturbations of large amplitude may exist if they are compensated by dark-matter perturbations so that the total density remains unchanged. Big-bang nucleosynthesis and galaxy clusters...
Intergalactic Gas in Groups of Galaxies: Implications for Dwarf Spheroidal Formation and The Missing Baryons Problem
Implications Spheroidal Formation Missing Baryons
2011/9/28
Radio galaxies with bent jets are predominantly located in groups and clusters of galaxies. We use bent-double radio sources, under the assumption that their jets are bent by ram-pressure, to probe in...
A Census of Baryons and Dark Matter in an Isolated, Milky Way-sized Elliptical Galaxy
Baryons Dark Matter Milky Way-sized Elliptical Galaxy
2011/1/13
We present a study of the dark and luminous matter in the isolated elliptical galaxy NGC720, based on deep X-ray observations made with Chandra and Suzaku. The gas is reliably measured to ~R2500, allo...