搜索结果: 1-7 共查到“星系与宇宙学 simulation”相关记录7条 . 查询时间(0.447 秒)
Group Scaling Relations From a Cosmological Hydrodynamic Simulation: No Pre-heating Required?
pre-heating entropy fl oors
2014/12/26
We investigate the X-ray vs. optical scaling relations of poor groups
to small clusters ( 100−700 km/s) identified in a cosmological hydro-
dynamic simulation of a ΛCDM universe, with cooli...
Hydrodynamic simulation of the cosmological X-ray background
observations large scale structure of Universe
2014/12/26
We use a hydrodynamic simulation of an inflationary cold dark matter model with a cosmological constant to predict properties of the extragalactic X-ray background (XRB). We focus on emission from the...
X-ray scaling relations of galaxy groups in a hydrodynamic cosmological simulation
theory clusters
2014/12/26
We examine the scalings of X-ray luminosity, temperature, and dark matter or galaxy velocity dispersion for galaxy groups in a ΛCDM cosmological simulation, which incorporates gravity, gas dynamics, r...
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...
Computing the Bayes Factor from a Markov chain Monte Carlo Simulation of the Posterior Distribution
Markov chain Bayes Factor
2014/12/22
Computation of the marginal likelihood from a simulated posterior distribution is central to Bayesian model selection but is computationally difficult. I argue that the marginal likelihood can be reli...
Precision simulation of ground-based lensing data using observations from space
methods: data analysis – techniques: image processing – gravitational lensing: weak – galaxies: structure
2011/10/13
Current and upcoming wide-field, ground-based, broad-band imaging surveys promise to address a wide range of outstanding problems in galaxy formation and cosmology. Several such uses of ground-based d...
Understanding nlr in seyfert galaxies：numerical simulation of jet-cloud interaction
nlr jet-cloud interaction seyfert galaxies
2009/6/5
Understanding nlr in seyfert galaxies：numerical simulation of jet-cloud interaction。