7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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34 papers · 1 filter
VLBI, MERLIN and HST observations of the giant radio galaxy 3C236
R. T. Schilizzi, W. W. Tian, J. E. Conway +6
We present VLBI and MERLIN data at 1.66 and 4.99 GHz on the central component coincident with the nucleus of the giant radio galaxy, 3C236. The nuclear radio structure is composed…
A multi-frequency study of the radio galaxy NGC326
M. Murgia, P. Parma, R. Fanti +3
We present preliminary results of a multi-frequency study of the inversion symmetric radio galaxy NGC326 based on VLA observations at 1.4, 1.6, 4.8, 8.5, and 14.9 GHz. These data a…
VLBI imaging of the gravitational lenses B1422+231 and MGJ0414+0534
E. Ros, J. C. Guirado, J. M. Marcaide +5
We present wide-field images of the quadruple gravitational lenses B1422+231 and MGJ0414+0534 obtained from global Very Long Baseline Interferometry (VLBI) observations at 8.4 GHz…
AGN and Starburst Galaxies Seen through Radio Surveys
L. Gregorini, I. Prandoni, H. R. de Ruiter +5
The emergence of a new population of radio galaxies at mJy and sub-mJy levels is responsible for the change in the slope of the radio source counts. This population seems to includ…
Discovery of short-period binary millisecond pulsars in four globular clusters
N. D'Amico, A. G. Lyne, R. N. Manchester +2
We report the discovery using the Parkes radio telescope of binary millisecond pulsars in four clusters for which no associated pulsars were previously known. The four pulsars have…
Radio Properties of REX BL Lacs and Galaxies
Anna Wolter, A. Caccianiga, T. Maccacaro +4
Detailed VLA observations have been gathered for a number of sources classified as either BL Lacs or galaxies, derived from the REX survey. We focus in particular on the sources id…
The ATESP radio survey III. Source counts
I. Prandoni, L. Gregorini, P. Parma +4
This paper is part of a series reporting the results of the ATESP radio survey obtained at 1.4 GHz with the Australia Telescope Compact Array. The survey consists of 16 radio mosai…
Non thermal emission from galaxy clusters: radio halos
L. Feretti, G. Brunetti, G. Giovannini +2
The number of diffuse radio halos in clusters of galaxies has grown in recent years, making it possible to derive statistical properties of these sources and of the hosting cluster…
The HST snapshot survey of the B2 sample of low luminosity radio-galaxies: a picture gallery
A. Capetti, H. R. de Ruiter, R. Fanti +3
A Hubble Space Telescope snapshot survey of the B2 sample of low luminosity radio galaxies has, at present, produced V and I images of 41 objects. Together with 16 images of B2 sou…
The compact core-jet region of the superluminal quasar 3C216
Z. Paragi, S. Frey, I. Fejes +3
Space very long baseline interferometry (VLBI) observations of the quasar 3C216 with the VLBI Space Observatory Programme (VSOP) reveal that the parsec scale structure of the sourc…
The complete S5 polar cap sample: en route to phase-delay global astrometry
E. Ros, J. M. Marcaide, J. C. Guirado +1
We report on the present status of our S5 polar cap phase-connected astrometry program. We observe 13 radio sources in the northernmost 20deg of the sky at the wavelengths of 3.6cm…
Halo and Relic Sources in Clusters of Galaxies
G. Giovannini, L. Feretti
New images of 7 radio halos and relics, obtained with the Very Large Array at 20 or 90 cm, are presented here. The existence of a cluster-wide radio halo in the clusters A 665 and…
Spectral energy distributions of FRI nuclei and the FRI/BL Lac unifying model
A. Capetti, E. Trussoni, A. Celotti +2
We consider archival ROSAT and HST observations of five FRI radio galaxies and isolate their nuclear emission from that of the host galaxy. This enable us to determine the Spectral…
Coherent radio emission from the magnetic chemically peculiar star CU Virginis
C. Trigilio, P. Leto, F. Leone +2
Radio observations of the magnetic chemically peculiar star CU Vir, carried out with the VLA in three different days, show that the radio emission at 20 cm is characterized by a st…
The ATESP Radio Survey II. The Source Catalogue
I. Prandoni, L. Gregorini, P. Parma +4
This paper is part of a series reporting the results of the Australia Telescope ESO Slice Project (ATESP) radio survey obtained at 1400 MHz with the Australia Telescope Compact Arr…
The ATESP Radio Survey I. Survey Description, Observations and Data Reduction
I. Prandoni, L. Gregorini, P. Parma +4
This paper is the first of a series reporting the results of the Australia Telescope ESO Slice Project (ATESP) radio survey obtained at 1400 MHz with the Australia Telescope Compac…
Power Spectrum Analysis of the ESP Galaxy Redshift Survey
E. Carretti, C. Bertoni, A. Messina +2
We measure the power spectrum of the galaxy distribution in the ESO Slice Project (ESP) galaxy redshift survey. We develope a technique to describe the survey window function analy…
Radio Halos and Relics in Clusters of Galaxies and Detection Statistics
Gabriele Giovannini, Luigina Feretti, Federica Govoni
New sensitive VLA observations confirm the existence of halo and relic sources in 6 Abell clusters where a diffuse emission was found in the NVSS. We find evidence that the frequen…
Observational Properties of Diffuse Halos in Clusters
Luigina Feretti
The number of known diffuse radio sources in clusters of galaxies has grown in recent years, making it possible to derive statistical properties of these sources and of the hosting…
The morphology of the emission line region of Compact Steep Spectrum radio sources
D. J. Axon, A. Capetti, R. Fanti +3
We present the results of HST narrow band imaging of eleven Compact Steep Spectrum (CSS) radio sources. Five of them (3C 48, 3C 147, 3C303.1, 3C 277.1 and 4C 12.50) were part of a…
The Properties of the X-Ray-Selected EMSS Sample of BL Lac Objects
T. A. Rector, J. T. Stocke, E. S. Perlman +2
We present updated and complete radio, optical and X-ray data for BL Lacs in the Einstein Medium Sensitivity Survey (EMSS). The complete "M91" sample first presented in Morris et a…
Discovery of a Young Radio Pulsar in a Relativistic Binary Orbit
V. M. Kaspi, A. G. Lyne, R. N. Manchester +8
We report on the discovery of PSR J1141-6545, a radio pulsar in an eccentric, relativistic 5-hr binary orbit. The pulsar shows no evidence for being recycled, having pulse period P…
ISO observations of a sample of Compact Steep Spectrum and GHz Peaked Spectrum Radio Galaxies
C. Fanti, F. Pozzi, R. Fanti +13
We present results from observations obtained with ISOPHOT, on board the ISO satellite, of a representative sample of seventeen CSS/GPS radio galaxies and of a control sample of si…
Towards global-phase-delay VLBI astrometry: observations of QSO 1150+812 and BL 1803+784
M. A. Perez-Torres, J. M. Marcaide, J. C. Guirado +4
On 18 November 1993, we observed the QSO 1150+812 and the BL Lac object 1803+784, nearly 15°apart on the sky, with a VLBI array, simultaneously recording at 8.4 and 2.3 GHz. Using…