7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National Institute for AstrophysicsIT1.2k papers
- University of BolognaIT1.1k papers
- Centre National de la Recherche ScientifiqueFR830 papers
- Leiden UniversityNL562 papers
- University of PaduaIT461 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR449 papers
- Astrophysique, Instrumentation et ModélisationFR424 papers
- Center for Astrophysics Harvard & SmithsonianUS420 papers
- Netherlands Institute for Radio AstronomyNL418 papers
- Osservatorio Astronomico di PadovaIT411 papers
- Osservatorio astronomico di BolognaIT398 papers
- California Institute of TechnologyUS397 papers
35 papers · 1 filter
Parsec--scale radio jets in gamma--ray loud sources
T. Venturi, D. Dallacasa
We will present a multiepoch study of the three blazars 0954+658 (BL--Lac), PKS1510--089 (HPQ) and 1749+096 (BL--Lac). The first two sources are known to be --ray loud. Our stud…
Hard X-ray and radio observations of Abell 754
R. Fusco-Femiano, M. Orlandini, S. De Grandi +5
We present a long BeppoSAX observation of Abell 754 that reports a nonthermal excess with respect to the thermal emission at energies greater than ~45 keV. A VLA radio observation…
B2 0648+27: a radio galaxy in a major merger
R. Morganti, T. A. Oosterloo, A. Capetti +5
We present WSRT observations of the neutral hydrogen in the nearby radio galaxy B2 0648+27. In emission, we detect a very large amount of HI (M_HI = 1.1 x 10^10 M_sun) that is dist…
The black hole mass of low redshift radiogalaxies
D. Bettoni, R. Falomo, G. Fasano +1
We make use of two empirical relations between the black hole mass and the global properties (bulge luminosity and stellar velocity dispersion) of nearby elliptical galaxies, to in…
Cosmological constraints from evolution of cluster baryon mass function at z~0.5
A. Vikhlinin, A. Voevodkin, C. R. Mullis +8
We present a new method for deriving cosmological constraints based on the evolution of the baryon mass function of galaxy clusters, and implement it using 17 distant clusters from…
A deep VLA survey at 6 cm in the Lockman Hole
P. Ciliegi, G. Zamorani, G. Hasinger +3
We have obtained a deep radio image with the Very Large Array at 6 cm in the Lockman Hole. The noise level in the central part of the field is about 11 microJy. From these data we…
Radio asymmetry in 3C99
F. Mantovani, R. Fanti, C. Ferrari +2
The N-galaxy 3C99, a Compact Steep-spectrum Source showing a triple asymmetric structure, has been observed with several arrays of radio telescopes at sub-arcsecond resolution. New…
HST images of B2 radio galaxies: a link between circum-nuclear dust and radio properties?
H. R. de Ruiter, P. Parma, A. Capetti +2
Almost 60% of the B2 low luminosity radio galaxies have been observed with the Hubble Space Telescope. We present an analysis of the dust features, which are often present in the f…
The HST survey of the B2 sample of radio galaxies: detection of two optical jets
P. Parma, H. R. de Ruiter, A. Capetti +5
We present HST observations of previously undetected optical jets in the low-luminosity radio galaxies B2 0755+37 and B2 1553+24. We show that there is accurate spatial coincidence…
Constraining the evolution of young radio-loud AGN
I. A. G. Snellen, K. -H. Mack, R. T. Schilizzi +1
GPS and CSS radio sources are the objects of choice to investigate the evolution of young radio-loud AGN. Previous investigations, mainly based on number counts and source size dis…
Polarization Properties of Extragalactic Radio Sources and Their Contribution to Microwave Polarization Fluctuations
D. Mesa, C. Baccigalupi, G. De Zotti +4
We investigate the statistical properties of the polarized emission of extragalactic radio sources and estimate their contribution to the power spectrum of polarization fluctuation…
Abell 3560, a galaxy cluster at the edge of a major merging event
S. Bardelli, T. Venturi, E. Zucca +3
In this paper we study A3560, a rich cluster at the southern periphery of the A3558 complex, a chain of interacting clusters in the central part of the Shapley Concentration superc…
The Compton-thick AGN in the GPS radio source OQ+208
M. Guainazzi, C. Stanghellini, P. Grandi
We report in this paper the ASCA discovery of the first radio-loud Active Galactic Nucleus (AGN) covered by a Compton-thick X-ray absorber, in the GigaHertz Peaked Spectrum (GPS) r…
Modelling the non-thermal emission from galaxy clusters
G. Brunetti
We discuss the relevant processes for the relativistic electrons in the ICM and the possible mechanisms responsible for the production of these electrons. We focus on the origin of…
Non-thermal emission from extragalactic radio sources: a high resolution broad band (radio to X-rays) approach
Gianfranco Brunetti
In the framework of the study of extragalactic radio sources, we will focus on the importance of the spatial resolution at different wavelengths, and of the combination of observat…
A sample of southern Compact Steep Spectrum radio sources: The VLBI observations
A. Tzioumis, E. King, R. Morganti +19
A small sample of 7 southern Compact Steep Spectrum (CSS) radio sources has been selected as part of the study of a larger flux-limited complete sample of radio sources. High resol…
Gamma rays from clusters of galaxies
Pasquale Blasi
The search for gamma radiation in clusters of galaxies represents a precious tool to investigate the history of these large scale structures. Clusters or sources within them accele…
Modeling radio mini-halos in cooling flow clusters
Myriam Gitti, Gianfranco Brunetti, Giancarlo Setti +1
We have developed a model in which the diffuse synchrotron emission from radio mini-halos, observed in some cooling flow clusters, is due to a relic population of relativistic elec…
Understanding the nature of FRII optical nuclei: a new diagnostic plane for radio galaxies
Marco Chiaberge, Alessandro Capetti, Annalisa Celotti
We extend our study of the nuclei of 3CR FR II radio galaxies through HST optical images up to z=0.3. In the majority of them an unresolved nucleus (central compact core, CCC) is f…
How is really decelerating the expansion of SN1993J?
J. M. Marcaide, A. Alberdi, M. A. Perez-Torres +14
SN1993J is to date the radio supernova whose evolution has been monitored in greatest detail and the one which holds best promise for a comprehensive theoretical-observational anal…
Radio Continuum Observations towards Optical and Molecular Outflows
J. M. Girart, S. Curiel, L. F. Rodriguez +1
We present multi-frequency VLA continuum observations towards 8 star forming regions with molecular and optical outflows: L1489, HH 68-69, HH 94-95, NGC 2264D, L1681B, L778, MWC 10…
CSSs in a sample of B2 radio sources of intermediate strength
D. J. Saikia, P. Thomasson, R. E. Spencer +3
We present radio observations of 19 candidate compact steep-spectrum (CSS) objects selected from a well-defined, complete sample of 52 B2 radio sources of intermediate strength. Th…
The association between water kilomasers and compact radio sources in the starburst galaxy NGC2146
A. Tarchi, C. Henkel, A. B. Peck +1
We report the detection of 22 GHz water vapor emission toward the starburst galaxy NGC2146, made using the Effelsberg 100-m telescope. Interferometric observations with the Very La…
New Method for ISOCAM Data Reduction - II. Mid-Infrared Extragalactic Source Counts in the Southern ELAIS Field
C. Gruppioni, C. Lari, F. Pozzi +5
We present the 15 micron extragalactic source counts from the Final Analysis Catalogue of the European Large Area ISO Survey southern hemisphere field S1, extracted using the Lari…