Search Results - "Venturi, T."
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Compact radio emission indicates a structured jet was produced by a binary neutron star merger
Published in Science (American Association for the Advancement of Science) (01-03-2019)“…The binary neutron star merger event GW170817 was detected through both electromagnetic radiation and gravitational waves. Its afterglow emission may have been…”
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Are Radio Minihalos Confined by Cold Fronts in Galaxy Clusters? Minihalos and Large-scale Sloshing in A3444 and MS 1455.0+2232
Published in The Astrophysical journal (01-01-2024)“…Abstract We present radio and X-ray studies of A3444 and MS1455.0+2232, two galaxy clusters with radio minihalos in their cool cores. A3444 is imaged using the…”
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REVISITING SCALING RELATIONS FOR GIANT RADIO HALOS IN GALAXY CLUSTERS
Published in The Astrophysical journal (10-11-2013)“…Many galaxy clusters host megaparsec-scale radio halos, generated by ultrarelativistic electrons in the magnetized intracluster medium. The X-ray luminosity…”
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Merging Cluster Collaboration: A Panchromatic Atlas of Radio Relic Mergers
Published in The Astrophysical journal (01-09-2019)“…Golovich et al. present an optical imaging and spectroscopic survey of 29 radio relic merging galaxy clusters. In this paper, we study this survey to identify…”
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LOFAR discovery of a double radio halo system in Abell 1758 and radio/X-ray study of the cluster pair
Published in Monthly notices of the Royal Astronomical Society (01-07-2018)“…Abstract Radio haloes and radio relics are diffuse synchrotron sources that extend over Mpc-scales and are found in a number of merger galaxy clusters. They…”
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SoUthern Cluster sCale Extended Source Survey (SUCCESS): a GMRT and Meerkat study of nine massive galaxy clusters
Published in Monthly notices of the Royal Astronomical Society (13-07-2022)“…ABSTRACT We aim to carry out a radio study of the SoUthern Cluster sCale Extended Source Survey (SUCCESS) sample consisting of 20 massive (M500 > 5 × 1014 M⊙),…”
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A Deep uGMRT View of the Ultra-steep Spectrum Radio Halo in A521
Published in The Astrophysical journal (01-02-2024)“…Abstract We present the first detailed analysis of the ultra-steep spectrum radio halo in the merging galaxy cluster A521, based on upgraded Giant Metrewave…”
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The Coma Cluster at LOFAR Frequencies. II. The Halo, Relic, and a New Accretion Relic
Published in The Astrophysical journal (01-07-2022)“…Abstract We present LOw Frequency ARray observations of the Coma Cluster field at 144 MHz. The cluster hosts one of the most famous radio halos, a relic, and a…”
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A Candle in the Wind: A Radio Filament in the Core of the A3562 Galaxy Cluster
Published in The Astrophysical journal (01-07-2022)“…Using a MeerKAT observation of the galaxy cluster A3562 (a member of the Shapley Supercluster), we have discovered a narrow, long and straight, very faint…”
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Milliarcsecond Localization of the Repeating FRB 20201124A
Published in Astrophysical journal. Letters (01-03-2022)“…Abstract Very long baseline interferometric (VLBI) localizations of repeating fast radio bursts (FRBs) have demonstrated a diversity of local environments:…”
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Hard X-ray selected giant radio galaxies – II. Morphological evidence of restarted radio activity
Published in Monthly notices of the Royal Astronomical Society (01-05-2020)“…ABSTRACT About 6 per cent of radio galaxies (RGs) can reach linear sizes larger than 0.7 Mpc, and are then classified as giant radio galaxies (GRGs). The…”
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A Discovery of Young Radio Sources in the Cores of Giant Radio Galaxies Selected at Hard X-Rays
Published in The Astrophysical journal (20-04-2019)“…Giant radio galaxies (GRG) are the largest single entities in the universe, having a projected linear size exceeding 0.7 Mpc, which implies that they are also…”
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Radio multifrequency observations of Abell 781 with the WSRT
Published in Monthly notices of the Royal Astronomical Society (20-10-2023)“…ABSTRACT The Main galaxy cluster in the Abell 781 system is undergoing a significant merger and accretion process with peripheral emission to the north and…”
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MAPPING THE PARTICLE ACCELERATION IN THE COOL CORE OF THE GALAXY CLUSTER RX J1720.1+2638
Published in The Astrophysical journal (01-11-2014)“…We present new deep, high-resolution radio images of the diffuse minihalo in the cool core of the galaxy cluster RX J1720.1+2638. The images have been obtained…”
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The column density distribution of hard X-ray radio galaxies
Published in Monthly notices of the Royal Astronomical Society (21-09-2016)“…In order to investigate the role of absorption in active galactic nuclei (AGN) with jets, we have studied the column density distribution of a hard X-ray…”
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Cosmic Rays and Radio Halos in Galaxy Clusters: New Constraints from Radio Observations
Published in The Astrophysical journal (20-11-2007)“…Clusters of galaxies are sites of acceleration of charged particles and sources of nonthermal radiation. We report on new constraints on the population of…”
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The Coma Cluster at LOw Frequency ARray Frequencies. I. Insights into Particle Acceleration Mechanisms in the Radio Bridge
Published in The Astrophysical journal (01-01-2021)“…Radio synchrotron emission from the bridges of low-density gas connecting galaxy clusters and groups is a challenge for particle acceleration processes. In…”
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High-resolution, High-sensitivity, Low-frequency uGMRT View of Coma Cluster of Galaxies
Published in The Astrophysical journal (01-08-2022)“…Abstract We present high-resolution, high-sensitivity upgraded Giant Metrewave Radio Telescope observations of the Coma cluster (A1656) at 250–500 MHz and…”
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Ram-pressure stripped radio tails detected in the dynamically active environment of the Shapley Supercluster
Published in Monthly notices of the Royal Astronomical Society (01-09-2024)“…ABSTRACT We study the radio continuum emission of four galaxies experiencing ram-pressure stripping in four clusters of the Shapley Supercluster at redshift…”
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Radio multifrequency observations of the galaxy cluster pair Abell 399 − 401 with WSRT
Published in Monthly notices of the Royal Astronomical Society (02-05-2023)“…ABSTRACT Galaxy clusters are assembled via merging of smaller structures, in a process that generates shocks and turbulence in the intra cluster medium and…”
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