Results 151 to 160 of about 727 (164)

Time-Delay Cosmography: Measuring the Hubble Constant and Other Cosmological Parameters with Strong Gravitational Lensing. [PDF]

open access: yesSpace Sci Rev
Birrer S   +8 more
europepmc   +1 more source

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Resolving the hot and ionized Universe through the Sunyaev-Zeldovich effect. [PDF]

open access: yesOpen Res Eur
Di Mascolo L   +26 more
europepmc   +1 more source

Extreme energy in a relaxed galaxy group indicates the bursty nature of AGN feedback

open access: yes
Eckert D   +21 more
europepmc   +1 more source

Galaxies’ clustering generalized theory

Physics of the Dark Universe, 2021
Abstract In the present work we present, for the first time ever, the exact configuration integral entering the partition function Z that allows for a statistical mechanics treatment of galactic clustering. Thus, the general distribution function and the general clustering parameter for point mass systems is obtained from a grand canonical ...
M. Hameeda, Angelo Plastino, M.C. Rocca
openaire   +2 more sources

Generalized theory of clustering of extended galaxies with core halos

Physics of the Dark Universe, 2021
Abstract We discuss the clustering of core halo-galaxies of radius predicted by gravitational lensing. We appeal to a blend of recent (1) mathematical results and (2) statistical mechanics techniques. The exact configurational integrals of extended galaxies is evaluated together with the pertinent partition functions, the corresponding thermodynamics,
M. Hameeda   +3 more
openaire   +2 more sources

Second-generation galaxies in merging clusters?

Astronomical & Astrophysical Transactions, 2004
We consider gas-dynamics phenomena in merging clusters of galaxies. According to X-ray observations, merger shocks involve considerable baryonic masses and compress them into large-scale gaseous layers. The internal structure of the layers includes vorticity and magnetic fields generated in the process of the layer formation and evolution.
A. D. Chernin   +2 more
openaire   +1 more source

Clusters and Voids in General Galaxy Field

Symposium - International Astronomical Union, 1996
In our previous works (Anosova 1987, Anosova, Iyer, Varma 1994), we developed a new method for determination of the structure of a clustered distribution. In this work, we apply this method studying the observed distribution of galaxies in the Universe.
J. Anosova, S. Iyer, R. K. Varma
openaire   +1 more source

Vortex Generation by Shock-Bubble Interaction in Galaxy Clusters

2015
Fluid mechanics is at the heart of almost all astronomical research. In many cases, the conditions in astrophysical systems are such that supersonic flows are common. As a result, the most energetic phenomena in astronomy all involve some form of shock physics, often relativistic.
S. Heinz, S. Friedman, E. Churazov
openaire   +1 more source

Home - About - Disclaimer - Privacy