GERSHTEIN-ZELDOVICH BOUND AND COSMOLOGICAL RESTRICTIONS ON NEUTRINO MASS A.D. Dolgov 20-24 December, 2004 COSMOLOGY AND ASTROPHYSICS AT HIGH ENERGIES (dedicated to 90th anniversary of Ya. ... Astronomy is sensitive now to m (a few)в0.1 eV. based on combined data on LSS and CMBR. ... Right-handed neutrinos - result in stronger bound. ... 10 Massive neutrinos and CMBR Angular spectrum of CMBR does not feel directly presence of light neutrinos - they are practically relativistic at recombination. ...
Lack of co oling flow clusters at z 0.5 A. Vikhlinin1,2 , R. Burenin2 , W. R. Forman1 , C. Jones1 , A. Hornstrup3 , S. S. Murray1, and H. Quintana4 1 2 3 4 Harvard-Smithsonian ... Astronomia y Astrofisica, Pontificia Universidad Catolica de Chile The goal of this work is to study the incidence rate of co oling flows in the high redshift clusters using Chandra observations of z 0.5 ob jects from a new large, ... Fig. ... Lack of "cooling flow" clusters at z > 0.5 3 Fig. ...