4 papers
Chandra discovery of activity in the quiescent nuclear black hole of NGC821
A. Baldi, G. Fabbiano, S. Pellegrini +4
We report the results of the Chandra ACIS-S observations of the elliptical galaxy NGC 821, which harbors a supermassive nuclear black hole (of 3.5x10^7 solar masses), but does not…
The nature of the "Composite" Seyfert/Star-forming Galaxies
F. Panessa, M. Cappi, L. Bassani +6
We present the results obtained with BeppoSAX observations of the three Composite Seyfert/star-forming galaxies: IRAS 20051-1117, IRAS 04392-0123 and IRAS 01072+4954. These sources…
Recovering true metal abundances of the ICM
Silvia Pellegrini, Luca Ciotti
Recovering the true average abundance of the intracluster medium (ICM) is crucial for estimates of its global metal content, which in turn is linked to its past evolution and to th…
Decoupled hot gas flows in elliptical galaxies
S. Pellegrini, L. Ciotti
We present the results of a new set of hydrodynamical simulations of hot gas flows in model elliptical galaxies with the following characteristics: the spatial luminosity distribut…