964 citations · 1.8k across the 43 of their papers we have counts for
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Measuring supermassive black holes with gas kinematics - II. The LINERs IC 989, NGC 5077, and NGC 6500
Giovanna De Francesco, Alessandro Capetti, Alessandro Marconi
We present results from a kinematical study of the gas in the nucleus of a sample of three LINER galaxies, obtained from archival HST/STIS long-slit spectra. We found that, while f…
Quiet Sun Magnetic Field Measurements Based on Lines with Hyperfine Structure
J. Sanchez Almeida, B. Viticchie, E. Landi Degl'Innocenti +1
The Zeeman pattern of MnI lines is sensitive to hyperfine structure (HFS) and, they respond to hG magnetic field strengths differently from the lines used in solar magnetometry. Th…
Water maser variability over 20 years in a large sample of star-forming regions: the complete database
M. Felli, J. Brand, R. Cesaroni +10
Context. Water vapor emission at 22 GHz from masers associated with star-forming regions is highly variable. Aims. We present a database of up to 20 years of monitoring of a sample…
Profiles of heating in turbulent coronal magnetic loops
E. Buchlin, P. J. Cargill, S. J. Bradshaw +1
Context: The location of coronal heating in magnetic loops has been the subject of a long-lasting controversy: does it occur mostly at the loop footpoints, at the top, is it random…
Relativistic MHD Winds from Rotating Neutron Stars
Bucciantini, N., Thompson +7
We review here recent numerical results concerning the acceleration and collimation of relativistic outflows from neutron stars, and we discuss their implications for models of mag…
Coronal Heating, Weak MHD Turbulence and Scaling Laws
A. F. Rappazzo, M. Velli, G. Einaudi +1
Long-time high-resolution simulations of the dynamics of a coronal loop in cartesian geometry are carried out, within the framework of reduced magnetohydrodynamics (RMHD), to under…
Local Kelvin-Helmholtz instability and synchrotron modulation in Pulsar Wind Nebulae
N. Bucciantini, L. Del Zanna
We present here a series of numerical simulations of the development of Kelvin-Helmholtz instability in a relativistically hot plasma. The physical parameters in the unperturbed st…
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…
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…
Small-scale anisotropy and intermittency in high and low-latitude solar wind
A. Bigazzi, L. Biferale, S. M. A. Gama +1
We analyze low and high--latitude fast solar wind data from the Ulysses spacecraft from 1992 to 1994 using a a systematic method to analyse the anisotropic content of the magnetic…
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…
The Local Group Census: planetary nebulae in IC 10, Leo A and Sextans A
L. Magrini, R. L. M. Corradi, R. Greimel +8
In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular galaxies IC10, LeoA…
Spectropolarimetry of the Circinus Galaxy
E. Oliva, A. Marconi, A. Cimatti +1
High quality 4500-6800 A spectropolarimetric observations of the Circinus galaxy are reported. These show polarized and relatively broad (FWHM~3300 km/s) Halpha (as well as margina…
Near Infrared Spectra of the Orion Bar
A. Marconi, L. Testi, A. Natta +1
We have used the LONGSP spectrometer on the 1.5-m TIRGO telescope to obtain long slit spectra in the J, H, and K wavelength bands towards two positions along the Orion bar. These d…