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The double AGN in NGC 6240 revealed through 3-5 micron spectroscopy
G. Risaliti, E. Sani, R. Maiolino +7
We present 3-5 micron spectroscopy of the interacting system NGC 6240, showing the presence of two active galactic nuclei. The brightest (southern) nucleus shows up with a starburs…
Topology and Phase Transitions II. Theorem on a necessary relation
Roberto Franzosi, Marco Pettini
In this second paper, we prove a necessity Theorem about the topological origin of phase transitions. We consider physical systems described by smooth microscopic interaction poten…
Topology and Phase Transitions I. Preliminary Results
Roberto Franzosi, Marco Pettini, Lionel Spinelli
In this first paper, we demonstrate a theorem that establishes a first step toward proving a necessary topological condition for the occurrence of first or second order phase trans…
Constraining the thermal history of the Warm-Hot Intergalactic Medium
L. Zappacosta, R. Maiolino, A. Finoguenov +3
We have identified a large-scale structure traced by galaxies at z=0.8, within the Lockman Hole, by means of multi-object spectroscopic observations. By using deep XMM images we ha…