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181 papers · 1 filter
The Intracluster Plasma: a Universal Pressure Profile?
A. Lapi, A. Cavaliere, R. Fusco-Femiano
The pressure profiles of the Intracluster Plasma in galaxy clusters show a wide variance when observed in X rays at low redshifts z<0.2. We find the profiles to follow two main pat…
Environmental effects in the interaction and merging of galaxies in zCOSMOS
P. Kampczyk, S. J. Lilly, L. de Ravel +56
(Abridged) We analyze the environments and galactic properties (morphologies and star-formation histories) of a sample of 153 close kinematic pairs in the redshift range 0.2 < z <…
Observational evidence of quasar feedback quenching star formation at high redshift
M. Cano-Diaz, R. Maiolino, A. Marconi +3
Most galaxy evolutionary models require quasar feedback to regulate star formation in their host galaxies. In particular, at high redshift, models expect that feedback associated w…
Three Years of Fermi LAT Flare Advocate Activity
S. Ciprini, D. Gasparrini, D. Bastieri +2
The Fermi Flare Advocate (also known as Gamma-ray Sky Watcher, FA-GSW) service provides for a daily quicklook analysis and review of the high-energy gamma-ray sky seen by the Fermi…
Stellar metallicity of star-forming galaxies at z ~ 3
Veronica Sommariva, Filippo Mannucci, Giovanni Cresci +5
The stellar metallicity is a direct measure of the amount of metals present in a galaxy, as a large part of the metals lie in its stars. In this paper we investigate new stellar me…
Luminous and High Stellar Mass Candidate Galaxies at z ~ 8 Discovered in CANDELS
Haojing Yan, Steven L. Finkelstein, Kuang-Han Huang +26
One key goal of the Hubble Space Telescope Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey is to track galaxy evolution back to z ~ 8. Its two-tiered "wide and deep"…