Hot bubbles drive explosions
نویسندگان
چکیده
منابع مشابه
Parity Odd Bubbles in Hot Qcd
We consider the topological susceptibility for an SU(N) gauge theory in the limit of a large number of colors, N → ∞. At nonzero temperature, the behavior of the topological susceptibility depends upon the order of the deconfining phase transition. The most interesting possibility is if the deconfining transition, at T = Td, is of second order. Then we argue that Witten’s relation implies that ...
متن کاملHot and cold bubbles in M 87
The X-ray data obtained with XMM-Newton is used to investigate the complex structure of the gas in the atmosphere of the Virgo cluster around M87. We construct a simple model for the temperature and density distribution. This model implies that the cumulative mass of the cluster gas is a power-law of its entropy index, kT n−2/3, similar to the Hydra cluster. This supports the idea that such pow...
متن کاملHot Bubbles in Cooling Flow Clusters
As more cooling flow clusters of galaxies with central radio sources are observed with the Chandra and XMM-Newton X-ray Observatories, more examples of “bubbles” (low-emission regions in the X-ray coincident with radio emission) are being found. These bubbles are surrounded by bright shells of X-ray emission, and no evidence of current strong shocks has yet been found. Using an analytic approac...
متن کاملSimulations of Hot Bubbles in the Icm
We review the general properties of the intracluster medium (ICM) in clusters that host a cooling flow, and in particular the effects on the ICM of the injection of hot plasma by a powerful active galactic nucleus (AGN). It is observed that, in some cases, the hot plasma produces cavities in the ICM that finally detach and rise, perhaps buoyantly. The gas dynamics induced by the rising bubbles ...
متن کاملProduction of Hot Nuclei in Nuclear Reactions and Supernova Explosions
It is well established experimentally that highly excited nuclear systems with temperatures T > 3− 5 MeV can be formed in intermediate-energy heavy-ion collisions. Eventually they break up into many fragments with broad mass and charge distributions. These multifragmentation reactions have been intensively investigated in GSI and other world laboratories. It has also been established that a the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/341489a0