منابع مشابه
Wakes of ram pressure stripped disc galaxies
Spiral galaxies that move through the intracluster medium lose a substantial amount of their gas discs due to ram pressure stripping. The recent observations of NGC 4388 by Oosterloo & van Gorkom (2005) reveal a tail of stripped gas of ∼ 100 kpc behind the source galaxy. We present first 3D hydrodynamical simulations of the evolution of such ram pressure stripped tails. We find that if the ICM ...
متن کاملRam pressure histories of cluster galaxies
Ram pressure stripping can remove significant amounts of gas from galaxies that orbit in clusters and massive groups, and thus has a large impact on the evolution of cluster galaxies. In this paper, we reconstruct the present-day distribution of rampressure, and the ram pressure histories of cluster galaxies. To this aim, we combine the Millennium Simulation and an associated semi-analytic mode...
متن کاملRam Pressure Stripping in Clusters and Groups
Ram pressure stripping is an important process in the evolution of both dwarf galaxies and large spirals. Large spirals are severely stripped in rich clusters and may be mildly stripped in groups. Dwarf galaxies can be severely stripped in both clusters and groups. A model is developed that describes the stripping of a satellite galaxy’s outer H i disk and hot galactic halo. The model can be ap...
متن کاملRam Mating Behaviour under Different Social Conditions
The present study was conducted to investigate the attributes of ram sexual behaviour under different social conditions. Six intact rams and eight overiectomized ewes were used in this experiment. Ewes were artificially brought into oestrus. All mating traits were recorded every 10 sec during a 1 h mating session under five social conditions viz., ram exposed to single oestrus ewe, ram exposed ...
متن کاملRam pressure stripping and the formation of cold fronts
Chandra and XMM-Newton observations of many clusters reveal sharp discontinuities in the surface brightness, which, unlike shocks, have lower gas temperature on the X-ray brighter side of the discontinuity. For that reason these features are called “cold fronts”. It is believed that some cold fronts are formed when a subcluster merges with another cluster and the ram pressure of gas flowing out...
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ژورنال
عنوان ژورنال: Nature Astronomy
سال: 2019
ISSN: 2397-3366
DOI: 10.1038/s41550-018-0655-1