322 citations · 2.1k across the 53 of their papers we have counts for
6 papers · 1 filter
Jet rotation: launching region, angular momentum balance and magnetic properties in the bipolar outflow from RW Aur
Jens Woitas, Francesca Bacciotti, Thomas P. Ray +3
Using STIS on board the HST we have obtained a spectroscopic map of the bipolar jet from RW Aur. We find signatures of rotation within the first 300 AU of the jet (1.''5 from RW Au…
The supermassive black hole in the Seyfert 2 galaxy NGC 5252
Alessandro Capetti, Alessandro Marconi, Duccio Macchetto +1
We present results from HST/STIS long-slit spectroscopy of the gas motions in the nuclear region of the Seyfert 2 galaxy NGC 5252. The observed velocity field is consistent with ga…
Lyapunov exponents from unstable periodic orbits in the FPU-beta model
Roberto Franzosi, Pietro Poggi, Monica Cerruti-Sola
In the framework of a recently developed theory for Hamiltonian chaos, which makes use of the formulation of Newtonian dynamics in terms of Riemannian differential geometry, we obt…
Nuclear star formation in the quasar PG1126-041 from adaptive optics assisted spectroscopy
G. Cresci, R. Maiolino, A. Marconi +2
We present adaptive optics assisted spectroscopy of three quasars obtained with NACO at VLT. The high angular resolution achieved with the adaptive optics (~0.08"), joined to the d…
Warm-Hot Intergalactic Medium in the Sculptor Supercluster
L. Zappacosta, R. Maiolino, F. Mannucci +2
We have analyzed the soft X-ray emission in a wide area of the Sculptor supercluster by using overlapping ROSAT PSPC pointings. After subtraction of the point sources we have found…
Detections of Warm-Hot Intergalactic Medium
L. Zappacosta, R. Maiolino, F. Mannucci +3
Several popular cosmological models predict that most of the baryonic mass in the local universe is located in filamentary and sheet-like structures associated with groups and clus…