88 citations · 323 across the 22 of their papers we have counts for
22 papers
Constraints on the magnetic field in the hadronic scenario for the origin of the radio halo in the A1795 galaxy cluster
P. Marchegiani, V. Vacca, F. Loi +2
The radio halo in the cool-core galaxy cluster, A1795, has recently been proposed to be of hadronic origin, because it extends on megaparsec scales, where no turbulence is expected…
High significance detection at 4.8 GHz of the radio halo in the Coma galaxy cluster with the Sardinia Radio Telescope
P. Marchegiani, M. Murgia, F. Loi +4
We present the results of observations of the radio halo in the Coma galaxy cluster at 4.8 GHz performed with the Sardinia Radio Telescope. The radio halo in this cluster is detect…
First Sardinia Radio Telescope detection of the Sunyaev-Zel'dovich effect at 18.6 GHz
S. Cocchi, F. Loi, M. Murgia +5
Galaxy clusters imprint a distinctive signature on the cosmic microwave background through the thermal Sunyaev-Zel'dovich (SZ) effect, which enables to study the intracluster plasm…
Constraints on dark matter annihilation and turbulent reacceleration set by high-frequency observations of the radio halo in the Coma cluster
P. Marchegiani, V. Vacca, F. Govoni +2
We study the impact of the recent observation of the radio halo in the Coma galaxy cluster at 6.6 GHz with the Sardinia Radio Telescope on models based on turbulent reacceleration…
The ViCTORIA project: description of a multi-frequency radio survey of the Virgo galaxy cluster
F. de Gasperin, H. W. Edler, A. Boselli +8
The Virgo cluster is the closest richest nearby galaxy cluster. It is in the formation process, with a number of sub-clusters undergoing merging and interactions. Although a great…
Observations of the galaxy cluster CL 0217+70 and its surrounding region at 1.4 GHz with the Sardinia Radio Telescope
P. Marchegiani, V. Vacca, F. Govoni +3
We present the results of observations performed with the Sardinia Radio Telescope (SRT) at 1.3-1.8 GHz of the galaxy cluster CL 0217+70 and a region aroun…
Sardinia Radio Telescope observations of the Coma Cluster
M. Murgia, F. Govoni, V. Vacca +25
We present deep total intensity and polarization observations of the Coma cluster at 1.4 and 6.6 GHz performed with the Sardinia Radio Telescope. By combining the single-dish 1.4 G…
Observing galaxy clusters and the cosmic web through the Sunyaev Zel'dovich effect with MISTRAL
E. S. Battistelli, E. Barbavara, P. de Bernardis +33
Galaxy clusters and surrounding medium, can be studied using X-ray bremsstrahlung emission and Sunyaev Zel'dovich (SZ) effect. Both astrophysical probes, sample the same environmen…
Radio multifrequency observations of Abell~781 with the WSRT
B. V. Hugo, G. Bernardi, O. M. Smirnov +4
The `Main' galaxy cluster in the Abell 781 system is undergoing a significant merger and accretion process with peripheral emission to the north and southeastern flanks of the merg…
The Multi-Wavelength Environment of Second Bologna Catalog Sources
A. Paggi, F. Massaro, H. Peña-Herazo +11
We present the first results of the Chandra Cool Targets (CCT) survey of the Second Bologna Catalog (B2CAT) of powerful radio sources, aimed at investigating the extended X-ray emi…
New filamentary remnant radio emission and duty cycle constraints in the radio galaxy NGC 6086
S. Candini, M. Brienza, A. Bonafede +6
Radio galaxies are a subclass of active galactic nuclei in which accretion onto the supermassive black hole releases energy via relativistic jets. The jets are not constantly activ…
ViCTORIA project: MeerKAT HI observations of the ram pressure stripped galaxy NGC 4523
A. Boselli, P. Serra, F. de Gasperin +22
We present the first results of a 21 cm HI line pilot observation carried out with MeerKAT in preparation for the ViCTORIA project, an untargeted survey of the Virgo galaxy cluster…
The MeerKAT Fornax Survey -- I. Survey description and first evidence of ram pressure in the Fornax galaxy cluster
P. Serra, F. M. Maccagni, D. Kleiner +22
The MeerKAT Fornax Survey maps the distribution and kinematics of atomic neutral hydrogen gas (HI) in the nearby Fornax galaxy cluster using the MeerKAT telescope. The 12 deg^2 sur…
The CARMENES search for exoplanets around M dwarfs. A long-period planet around GJ 1151 measured with CARMENES and HARPS-N data
J. Blanco-Pozo, M. Perger, M. Damasso +37
Detecting a planetary companion in a short-period orbit through radio emission from the interaction with its host star is a new prospect in exoplanet science. Recently, a tantalisi…
A depolarizing HI tidal tail in the western lobe of Fornax A
Francesca Loi, Paolo Serra, Matteo Murgia +8
Recent MeerKAT neutral hydrogen (HI) observations of Fornax A reveal tidal material intersecting in projection the western lobe of this radio galaxy. We found a spatial coincidence…
The galaxy group NGC 507: newly detected AGN remnant plasma transported by sloshing
M. Brienza, L. Lovisari, K. Rajpurohit +15
Jets from active galactic nuclei (AGN) are known to recurrently enrich their surrounding medium with mildly-relativistic particles and magnetic fields. Here, we present a detailed…
A perfect power-law spectrum even at highest frequencies: The Toothbrush relic
K. Rajpurohit, F. Vazza, M. Hoeft +12
Radio relics trace shock fronts generated in the intracluster medium (ICM) during cluster mergers. The particle acceleration mechanism at the shock fronts is not yet completely und…
The recurrent nuclear activity of Fornax A and its interaction with the cold gas
F. M. Maccagni, P. Serra, M. Murgia +3
Sensitive (noise \Jyb), high-resolution () MeerKAT observations of Fornax A show that its giant lobes have a double-shell morphology, where dense filaments a…
A joint XMM-NuSTAR observation of the galaxy cluster Abell 523: constraints on Inverse Compton emission
F. Cova, F. Gastaldello, D. R. Wik +17
We present the results of a joint XMM-Newton and NuSTAR observation (200 ks) of the galaxy cluster Abell 523 at . The peculiar morphology of the cluster radio halo and its…
Sardinia Radio Telescope observations of Abell 194 - the intra-cluster magnetic field power spectrum
F. Govoni, M. Murgia, V. Vacca +30
We study the intra-cluster magnetic field in the poor galaxy cluster Abell 194 by complementing radio data, at different frequencies, with data in the optical and X-ray bands. We a…
A multiwavelength view of the galaxy cluster Abell 523 and its peculiar diffuse radio source
M. Girardi, W. Boschin, F. Gastaldello +7
We study the structure of the galaxy cluster Abell 523 (A523) at z=0.104 using new spectroscopic data for 132 galaxies acquired at the Telescopio Nazionale Galileo, new photometric…
The diffuse radio emission around NGC 5580 and NGC 5588
F. de Gasperin, H. T. Intema, W. Williams +4
The galaxy pair NGC 5580 and NGC 5588 are part of a loose group of galaxies. They are surrounded by steep-spectrum, extended radio emission which was previously suggested to be a d…