搜索结果: 1-7 共查到“星系与宇宙学 Heating”相关记录7条 . 查询时间(0.08 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...
Supernova Blast Waves in Low-Density Hot Media: A Mechanism for Spatially Distributed Heating
structure supernova remnants
2014/12/24
Most supernovae are expected to explode in low-density hot media, particularly in galactic bulges and elliptical galaxies. The remnants of such supernovae, although difficult to detect individually, c...
Pre-heating by pre-virialization and its impact on galaxy formation
dark matter large-scale structure of the universe
2014/12/24
We use recent observations of the H i mass function to constrain galaxy formation. The data conflict with the standard model where most of the gas in a low-mass dark matter halo is assumed to settle i...
VARIABLE O VI AND N V EMISSION FROM THE X-RAY BINARY LMC X-3: HEATING OF THE BLACK HOLE COMPANION*
Cosmic Origins
2014/12/22
Based on high-resolution ultraviolet spectroscopy obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) and the Cosmic Origins Spectrograph, we present new detections of O VI and N V emissio...
Enhanced dust heating in the bulges of early-type spiral galaxies
nearby galaxies galaxies
2014/12/20
Stellar density and bar strength should affect the temperatures of the cool (T ~ 20–30 K) dust component in the inner regions of galaxies, which implies that the ratio of temperatures in the circumnuc...
Two-Body relaxation and the heating of disk galaxy models
Two-Body relaxation disk galaxy models
2009/6/25
Two-Body relaxation and the heating of disk galaxy models。
Heating of the Intracluster Medium by Quasar Outflows
theory Galaxies medium X-rays galaxies clusters
2009/5/19
We study the possibility of quasar outflows in clusters and
groups of galaxies heating the intracluster gas in order to explain the recent
observation of excess entropy in this gas. We show that rad...