Publications (260)
Pion contamination in the MICE muon beam
D. Adams, A. Alekou, M. Apollonio +142
The international Muon Ionization Cooling Experiment (MICE) will perform a systematic investigation of ionization cooling with muon beams of momentum between 140 and 240\,MeV/c at…
The dynamical state of Abell 2399: a bullet-like cluster
Ana C. C. Lourenço, P. A. A. Lopes, T. F. Laganá +8
While there are many ways to identify substructures in galaxy clusters using different wavelengths, each technique has its own caveat. In this paper, we conduct a detailed substruc…
The high molecular gas content, and the efficient conversion of neutral into molecular gas, in jellyfish galaxies
A. Moretti, R. Paladino, B. M. Poggianti +11
In the disks of four jellyfish galaxies from the GASP sample at redshift we detect molecular gas masses systematically higher than in field galaxies. These galaxies are…
A powerful (and likely young) radio-loud quasar at z=5.3
S. Belladitta, A. Moretti, A. Caccianiga +5
We present the discovery of PSO J191.0569686.43172 (hereafter PSO J19186), a new powerful radio-loud quasar (QSO) in the early Universe (z = 5.32). We discovered it by cross-…
OmegaWINGS: spectroscopy in the outskirts of local clusters of galaxies
A. Moretti, M. Gullieuszik, B. Poggianti +9
Studies of the properties of low-redshift cluster galaxies suffer, in general, from small spatial coverage of the cluster area. WINGS, the most homogeneous and complete study of ga…
The jet of the BL Lac object PKS 0521 -365 in the near-IR : MAD adaptive optics observations
R. Falomo, E. Pian, A. Treves +12
BL Lac objects are low--power active nuclei exhibiting a variety of peculiar properties that are caused by the presence of a relativistic jet and orientation effects. We present he…
Advancing the detection of low surface brightness galaxies. I. ATTILA: multi-tAsking deTecTIon tool for Lsb gAlaxies
E. Borsato, F. Fonzo, N. Bellucco +15
Context. Ultra-diffuse galaxies (UDGs) lie at the extreme end of the size-luminosity distribution of low surface-brightness (LSB) galaxies. Their detection and characterization req…
Discovery of 47-s pulsations in the X-ray source 1RXS J225352.8+624354
P. Esposito, G. L. Israel, L. Sidoli +5
We report on the discovery of pulsations at a period of ~47 s in the persistent X-ray source 1RXS J225352.8+624354 (1RXS J2253) using five Chandra observations performed in 2009. T…
OmegaWINGS: The first complete census of post starburst galaxies in clusters in the local universe
A. Paccagnella, B. Vulcani, B. M. Poggianti +10
Galaxies that abruptly interrupt their star formation in < 1.5 Gyr present recognizable features in their spectra (no emission and Hd in absorption) and are called post starburst (…
The deepest X-ray look at the Universe
S. Campana, A. Moretti, D. Lazzati +1
The origin of the X-ray background, in particular at hard (2-10 keV) energies, has been a debated issue for more than 30 years. The Chandra deep fields provide the deepest look at…
EXSdetect: an end-to-end software for extended source detection in X-ray images: application to Swift-XRT data
Teng Liu, Paolo Tozzi, Elena Tundo +4
Aims. We present a stand-alone software (named EXSdetect) for the detection of extended sources in X-ray images. Our goal is to provide a flexible tool capable of detecting extende…
X-ray Flares in Early GRB Afterglows
D. N. Burrows, A. Falcone, G. Chincarini +12
The Swift X-ray Telescope (XRT) has discovered that flares are quite common in early X-ray afterglows of Gamma-Ray Bursts (GRBs), being observed in roughly 50% of afterglows with p…
Evidence for a Canonical GRB Afterglow Light Curve in the Swift/XRT Data
J. A. Nousek, C. Kouveliotou, D. Grupe +25
We present new observations of the early X-ray afterglows of the first 27 gamma-ray bursts (GRBs) detected with the Swift X-ray Telescope (XRT). The early X-ray afterglows show a c…
The multiwavelength afterglow of GRB 050721: a puzzling rebrightening seen in the optical but not in the X-ray
L. A. Antonelli, V. Testa, P. Romano +27
Context. GRB050721 was detected by Swift and promptly followed-up, in the X-ray by Swift itself and, in the optical band, by the VLT operated, for the first time, in rapid response…
The amazing diversity in the hot gas content of an X-ray unbiased massive galaxy clusters sample
S. Andreon, A. L. Serra, A. Moretti +1
We aim to determine the intrinsic variety, at a given mass, of the properties of the intracluster medium in clusters of galaxies. This requires a cluster sample selected independen…
WINGS Data Release: a database of galaxies in nearby clusters
A. Moretti, B. M. Poggianti, G. Fasano +15
[Abridged] To effectively investigate galaxy formation and evolution, it is of paramount importance to exploit homogeneous data for large samples of galaxies in different environme…
Locations and Morphologies of Jellyfish Galaxies in A2744 and A370
C. Bellhouse, B. M. Poggianti, A. Moretti +11
We present a study of the orbits, environments and morphologies of 13 ram-pressure stripped galaxies in the massive, intermediate redshift (z) galaxy clusters A2744 an…
AGN feedback in action: a new powerful wind in 1SXPSJ050819.8+172149?
L. Ballo, P. Severgnini, V. Braito +4
Galaxy merging is widely accepted to be a key driving factor in galaxy formation and evolution, while the feedback from AGN is thought to regulate the BH-bulge coevolution and the…
Long term experience with perfluorobutane in COMPASS RICH
F. Bradamante, A. Bressan, A. Cicuttin +16
COMPASS RICH-1 has used high-purity perfluorobutane as radiator gas since 2001. The operation and control of the radiator gas has evolved over years with continuous improvements. W…
The shock break-out of GRB 060218/SN 2006aj
S. Campana, V. Mangano, A. J. Blustin +36
Although the link between long Gamma Ray Bursts (GRBs) and supernovae (SNe) has been established, hitherto there have been no observations of the beginning of a supernova explosion…
RF system for the MICE demonstration of ionization cooling
K. Ronald, C. G. Whyte, A. J. Dick +29
Muon accelerators offer an attractive option for a range of future particle physics experiments. They can enable high energy (TeV+) high energy lepton colliders whilst mitigating t…
A sample of X-ray emitting normal galaxies from the BMW -- HRI Catalogue
M. Tajer, G. Trinchieri, A. Wolter +3
We have obtained a sample of 143 normal galaxies with X-ray luminosity in the range erg s from the cross-correlation of the ROSAT HRI Brera Multi-scale W…
The evolution of the number density of compact galaxies
B. M. Poggianti, A. Moretti, R. Calvi +4
We compare the number density of compact (small size) massive galaxies at low and high redshift using our Padova Millennium Galaxy and Group Catalogue (PM2GC) at z=0.03-0.11 and th…
Observations of Isolated Neutron Stars with the ESO Multi-Conjugate Adaptive Optics Demonstrator
R. P. Mignani, R. Falomo, A. Moretti +10
High-energy observations have unveiled peculiar classes of isolated neutron stars which, at variance with radio pulsars, are mostly radio silent and not powered by the star rotatio…
X-ray observation of ULAS J1120+0641, the most distant quasar at z=7.08
A. Moretti, L. Ballo, V. Braito +6
We aim at probing the emission mechanism of the accreting super massive black holes in the high redshift Universe. We study the X-ray spectrum of ULAS1120+0641, the highest redshif…
Direct observation of an extended X-ray jet at =6.1
L. Ighina, A. Moretti, F. Tavecchio +6
We report on the direct observation of an extended X-ray jet in the =6.1 radio-loud Active Galactic Nucleus PSO J030947.49+271757.31 from a deep Chandra X-ray observation (128 k…
Galaxy Clusters in the Swift/BAT era: Hard X-rays in the ICM
M. Ajello, P. Rebusco, N. Cappelluti +6
We report about the detection of 10 clusters of galaxies in the ongoing Swift/BAT all-sky survey. This sample, which comprises mostly merging clusters, was serendipitously detected…
Multi-wavelength properties of three new radio-powerful quasi-stellar objects discovered from RACS
L. Ighina, A. Caccianiga, A. Moretti +12
We present a multi-wavelength study of three new quasi-stellar objects (QSOs) identified from dedicated spectroscopic observations. The three sources were selected as hi…
Retrieval of the physical parameters of galaxies from WEAVE-StePS-like data using machine learning
J. Angthopo, B. R. Granett, F. La Barbera +46
The WHT Enhanced Area Velocity Explorer (WEAVE) is a new, massively multiplexing spectrograph. This new instrument will be exploited to obtain high S/N spectra of 25000 galax…
Discovery of the optical afterglow of XRF 040812: VLT and Chandra observations
P. D'Avanzo, D. Malesani, S. Campana +4
We present Chandra and VLT observations of the X-Ray Flash XRF 040812. The X-ray analysis reveals with high precision the position of a hard, fading source. A careful analysis of o…
Testing the gamma-ray burst variability/peak luminosity correlation on a Swift homogeneous sample
D. Rizzuto, C. Guidorzi, P. Romano +10
We test the gamma-ray burst correlation between temporal variability and peak luminosity of the -ray profile on a homogeneous sample of 36 Swift/BAT GRBs with firm redshift det…
Prompt and afterglow early X-ray phases in the comoving frame. Evidence for Universal properties?
G. Chincarini, A. Moretti, P. Romano +38
We analyze the Swift XRT light curves and spectra of the gamma-ray bursts (GRBs) for which the redshift has been measured. The sample consists of seven GRBs. The soft X-ray light c…
Swift XRT Observations of the Afterglow of GRB 050319
G. Cusumano, V. Mangano, L. Angelini +27
Swift discovered the high redshift GRB 050319 with the Burst Alert Telescope and began observing with its narrow field instruments only 225 s after the burst onset. The afterglow X…
Candidate ram-pressure stripped galaxies in six low-redshift clusters revealed from ultraviolet imaging
Koshy George, B. M. Poggianti, A. Omizzolo +12
The assembly of galaxy clusters is understood to be a hierarchical process with a continuous accretion of galaxies over time, which increases the cluster size and mass. Late-type g…
Swift data hint at a binary Super Massive Black Hole candidate at sub-parsec separation
P. Severgnini, C. Cicone, R. Della Ceca +10
Dual/binary Supermassive Black Hole (SMBH) systems are the inevitable consequence of the current Lambda Cold Dark Matter cosmological paradigm. In this context, we discuss here the…
The most extreme high-z radio quasars in the eRASS:1 X-ray survey
L. Ighina, L. Palmieri, L. N. Martínez-Ramírez +7
We present the selection and identification of high-z radio quasars from a combination of X-ray (eROSITA All-Sky Survey), optical/NIR (DECam Local Volume Exploration), and radio (R…
The early X-ray emission from GRBs
P. T. O'Brien, R. Willingale, J. Osborne +29
We present observations of the early X-ray emission for a sample of 40 gamma-ray bursts (GRBs) obtained using the Swift satellite for which the narrow-field instruments were pointe…
Pressurized rf cavities in ionizing beams
B. Freemire, A. V. Tollestrup, K. Yonehara +10
A muon collider or Higgs factory requires significant reduction of the six dimensional emittance of the beam prior to acceleration. One method to accomplish this involves building…
Attributes of flares in Gamma Ray Bursts: sample I
G. Chincarini, A. Moretti, P. Romano +14
We discuss some of the preliminary results and findings derived from the analysis of a first sample of flares detected by the XRT on board Swift. The analysis shows that the morpho…
The X-ray absorbing column densities of Swift Gamma-ray bursts
S. Campana, C. C. Thone, A. de Ugarte Postigo +3
Long gamma-ray bursts (GRBs) are associated with the explosion of massive stars in star forming regions. A large fraction of GRBs show intrinsic absorption as detected in optical s…
A study of the prompt and afterglow emission of the Short GRB 061201
G. Stratta, P. D'Avanzo, S. Piranomonte +30
Our knowledge of the intrinsic properties of short duration Gamma-Ray Bursts has relied, so far, only upon a few cases for which the estimate of the distance and an extended, multi…
Multi-wavelength structure analysis of local cluster galaxies. The WINGS project
A. Psychogyios, M. Vika, V. Charmandaris +6
We present a multi-wavelength analysis of the galaxies in nine clusters selected from the WINGS dataset, examining how galaxy structure varies as a function of wavelength and envir…
GASP XXXVII: The Most Extreme Jellyfish Galaxies Compared to Other Disk Galaxies in Clusters, an HI Study
N. Luber, A. Müller, J. H. van Gorkom +19
We present the results of a VLA HI imaging survey aimed at understanding why some galaxies develop long extraplanar H tails, becoming extreme jellyfish galaxies. The observatio…
The relevance of ram pressure stripping for the evolution of blue cluster galaxies as seen at optical wavelengths
B. Vulcani, B. M. Poggianti, R. Smith +5
Ram pressure stripping is one of the most efficient mechanisms able to affect the gas reservoir in cluster galaxies and in the last decades many studies have characterized the prop…
Modelling the spectral response of the Swift-XRT CCD camera: Experience learnt from in-flight calibration
O. Godet, A. P. Beardmore, A. F. Abbey +11
(Abbreviated) We show that the XRT spectral response calibration was complicated by various energy offsets in photon counting (PC) and windowed timing (WT) modes related to the way…
Light isovector resonances in at 190 GeV/
M. Aghasyan, M. G. Alexeev, G. D. Alexeev +221
We have performed the most comprehensive resonance-model fit of states using the results of our previously published partial-wave analysis (PWA) of a large data set…
Morphology rather than environment drives the SFR-Mass relation in the local universe
R. Calvi, B. Vulcani, B. M. Poggianti +3
Exploiting a sample of 680 star-forming galaxies from the Padova-Millennium GalaxyGroup Catalog (PM2GC) (Calvi et al. 2011) in the range 0.038<z<0.104, we present a detailed analys…
GRB 050410 and GRB 050412: are they really dark GRBs?
T. Mineo, V. Mangano, S. Covino +20
We present a detailed analysis of the prompt and afterglow emission of GRB 050410 and GRB 050412 detected by Swift for which no optical counterpart was observed. The 15-150 keV ene…
A Swift gaze into the 2006 March 29th burst forest of SGR 1900+14
G. L. Israel, P. Romano, V. Mangano +16
We report on the intense burst ``forest'' recorded on 2006 March 29 which lasted for ~30s. More than 40 bursts were detected both by BAT and by XRT, seven of which are rare interme…
The Brera Multi-scale Wavelet HRI Cluster Survey: I Selection of the Sample and Number Counts
A. Moretti, L. Guzzo, S. Campana +7
We describe the construction of the Brera Multi-scale Wavelet (BMW) HRI Cluster Survey, a deep sample of serendipitous X-ray selected clusters of galaxies based on the ROSAT HRI ar…
The short GRB 051210 observed by Swift
V. La Parola, V. Mangano, B. Zhang +12
We report on the short GRB051210 detected by the Swift-BAT. The light curve, on which we focus mainly, shows a hint of extended emission in the BAT energy range, a steep decay of t…
GASP XXXIV: Unfolding the thermal side of ram pressure stripping in the jellyfish galaxy JO201
M. G. Campitiello, A. Ignesti, M. Gitti +14
X-ray studies of jellyfish galaxies play a crucial role in understanding the interactions between the interstellar medium (ISM) and the intracluster medium (ICM). In this paper, we…
3D modeling of the molecular gas kinematics in optically-selected jellyfish galaxies
C. Bacchini, M. Mingozzi, B. M. Poggianti +9
Cluster galaxies are subject to the ram pressure exerted by the intracluster medium, which can perturb or even strip away their gas while leaving the stars undisturbed. We model th…
GASP. V. Ram-pressure stripping of a ring Hoag's-like galaxy in a massive cluster
A. Moretti, B. M. Poggianti, M. Gullieuszik +8
Through an ongoing MUSE program dedicated to study gas removal processes in galaxies (GAs Stripping Phenomena in galaxies with MUSE, GASP), we have obtained deep and wide integral…
High-statistics measurement of Collins and Sivers asymmetries for transversely polarised deuterons
G. D. Alexeev, M. G. Alexeev, C. Alice +183
New results are presented on a high-statistics measurement of Collins and Sivers asymmetries of charged hadrons produced in deep inelastic scattering of muons on a transversely pol…
Gas temperature profiles in galaxy clusters with Swift XRT: observations and capabilities to map near R200
A. Moretti, F. Gastaldello, S. Ettori +1
We investigate the possibility of using the X-ray telescope (XRT) on board the Swift satellite to improve the current accuracy of the ICM temperature measurements in the region clo…
The luminosity function of cluster galaxies. II. Data reduction procedures applied to the cluster Abell 496
A. Moretti, E. Molinari, G. Chincarini +1
We initiated a large project aimed to estimate the Luminosity Function of galaxies in clusters and to evaluate its relation to cluster morphology. With this paper we deem necessary…
First Observation of an Exotic Reggeon
G. D. Alexeev, M. G. Alexeev, C. Alice +180
We present new \compass high-statistics measurements of the peripheral production of and pairs in the reactions . For the…
A metal rich molecular cloud surrounds GRB 050904 at redshift 6.3
S. Campana, D. Lazzati, E. Ripamonti +7
GRB050904 is the gamma-ray burst with the highest measured redshift. We performed time resolved X-ray spectroscopy of the late GRB and early afterglow emission. We find robust evid…
Post-processing of galaxies due to major cluster mergers I. hints from galaxy colours and morphologies
K. Kelkar, Y. L. Jaffé, A. C. C. Lourenço +6
Galaxy clusters, which underwent a recent ( Gyr) major merger, offer a harsher environment due to the global hydrodynamical disturbance and the merger-shock heated ICM. Howe…
Limits on the high redshift growth of massive black holes
R. Salvaterra, F. Haardt, M. Volonteri +1
We place firm upper limits on the global accretion history of massive black holes at z>5 from the recently measured unresolved fraction of the cosmic X-ray background. The maximum…
An extremely X--ray weak blazar at z=5
S. Belladitta, A. Moretti, A. Caccianiga +5
We present the discovery and properties of DESJ014132.4-542749.9 (DES0141-54), a new powerful radio-loud active galactic nucleus (AGN) in the early Universe (z=5.0). It was discove…
The Palermo Swift-BAT Hard X-ray Catalogue. II- Results after 39 months of sky survey
G. Cusumano, V. La Parola, A. Segreto +12
We present the Palermo Swift-BAT hard X-ray catalogue obtained from the analysis of the the data relative to the first 39 months of the Swift mission. We have developed a dedicated…
Jellyfish galaxy candidates at low redshift
B. M. Poggianti, G. Fasano, A. Omizzolo +9
Galaxies that are being stripped of their gas can sometimes be recognized from their optical appearance. Extreme examples of stripped galaxies are the so-called ``jellyfish galaxie…
Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with
G. D. Alexeev, M. G. Alexeev, C. Alice +160
We measured the strange-meson spectrum in the scattering reaction with the COMPASS spectrometer at CERN. Using the world's largest sample…
The strong correlation between post-starburst fraction and environment
A. Paccagnella, B. Vulcani, B. M. Poggianti +4
We examine a magnitude limited (M_B< -18.7) sample of post-starburst (PSB) galaxies at 0.03<z<0.11 in the different environments from the spectroscopic data set of the Padova Mille…
The in-flight spectroscopic performance of the Swift XRT CCD camera during 2006-2007
O. Godet, A. P. Beardmore, A. F. Abbey +26
The Swift X-ray Telescope focal plane camera is a front-illuminated MOS CCD, providing a spectral response kernel of 135 eV FWHM at 5.9 keV as measured before launch. We describe t…
XIAO: a soft X-ray telescope for the SVOM Mission
S. Mereghetti, A. De Luca, M. Fiorini +23
The study of Gamma-ray bursts (GRBs) is a key field to expand our understanding of several astrophysical and cosmological phenomena. SVOM is a Chinese-French Mission which will per…
Outliers from the mainstream: how a massive star can produce a gamma-ray burst
S. Campana, N. Panagia, D. Lazzati +12
It is now recognized that long-duration Gamma-Ray Bursts (GRBs) are linked to the collapse of massive stars, based on the association between (low-redshift) GRBs and (type Ic) core…
The uncommon intracluster medium features of the first massive clusters selected independently of their baryon content
S. Andreon, M. Radovich, A. Moretti +6
Our current knowledge of the thermodynamic properties of galaxy clusters comes primarily from detailed studies of clusters selected by their minority components: hot baryons. Most…
GASP XXX. The spatially resolved SFR-Mass relation in stripping galaxies in the local universe
B. Vulcani, B. M. Poggianti, S. Tonnesen +10
The study of the spatially resolved Star Formation Rate-Mass (Sigma_SFR-Sigma_M) relation gives important insights on how galaxies assemble at different spatial scales. Here we pre…
GASP XXIV. The history of abruptly quenched galaxies in clusters
B. Vulcani, J. Fritz, B. M. Poggianti +8
The study of cluster post starburst galaxies gives useful insights on the physical processes quenching the star formation in the most massive environments. Exploiting the MUSE data…
Can a "standard" Initial Mass Function explain the metal enrichment in clusters of galaxies?
L. Portinari, A. Moretti, C. Chiosi +1
It is frequently debated in literature whether a "standard" Initial Mass Function (IMF) - meaning an IMF of the kind usually adopted to explain the chemical evolution in the local…
Variegate galaxy cluster gas content: Mean fraction, scatter, selection effects and covariance with X-ray luminosity
S. Andreon, J. Wang, G. Trinchieri +2
We use a cluster sample selected independently of the intracluster medium content with reliable masses to measure the mean gas mass fraction and its scatter, the biases of the X-ra…
WINGS-SPE II: A catalog of stellar ages and star formation histories, stellar masses and dust extinction values for local clusters galaxies
J. Fritz, B. M. Poggianti, A. Cava +12
The WIde-field Nearby Galaxy clusters Survey (WINGS) is a project whose primary goal is to study the galaxy populations in clusters in the local universe (z<0.07) and of the influe…
GASP. X: APEX detection of molecular gas in the tails and in the disks of ram-pressure stripped galaxies
A. Moretti, R. Paladino, B. M. Poggianti +8
Jellyfish galaxies in clusters are key tools to understand environmental processes at work in dense environments. The advent of Integral Field Spectroscopy has recently allowed to…
Panchromatic study of GRB 060124: from precursor to afterglow
P. Romano, S. Campana, G. Chincarini +35
We present observations of GRB 060124, the first event for which both the prompt and the afterglow emission could be observed simultaneously and in their entirety by the three Swif…
Electron-Muon Ranger: performance in the MICE Muon Beam
D. Adams, A. Alekou, M. Apollonio +151
The Muon Ionization Cooling Experiment (MICE) will perform a detailed study of ionization cooling to evaluate the feasibility of the technique. To carry out this program, MICE requ…
A refined position catalog of the Swift XRT afterglows
A. Moretti, M. Perri, M. Capalbi +22
We present a catalogue of refined positions of 68 gamma ray burst (GRB) afterglows observed by the Swift X-ray Telescope (XRT) from the launch up to 2005 Oct 16. This is a result o…
Rest frame light curves of Swift GRBs
V. Mangano, V. La Parola, E. Troja +12
We have computed the luminosity rest frame light curves of the first 40 Gamma-ray bursts (GRBs) detected by Swift with well established redshift. We studied average properties of t…
Persistent and Transient Blank Field Sources
A. Treves, S. Campana, M. Chieregato +3
Blank field sources (BFS) are good candidates for hosting dim isolated neutron stars (DINS). The results of a search of BFS in the ROSAT HRI images are revised. We then focus on tr…
Pile-up correction for the Swift-XRT observations in WT mode
T. Mineo, P. Romano, V. Mangano +12
The detector at the focal plane of the Swift X-ray Telescope (XRT) supports four readout modes, automatically changed on board, to cover the dynamical range of fluxes and rapid var…
Why are some galaxy clusters underluminous? The very low concentration of the CL2015 mass profile
S. Andreon, A. Moretti, G. Trinchieri +1
Our knowledge of the variety of galaxy clusters has been increasing in the last few years thanks to our progress in understanding the severity of selection effects on samples. To u…
The flat entropy profile at the outskirts of the Abell 2244 galaxy cluster
S. Andreon, A. Moretti, H. Bohringer +1
Entropy is an advantageous diagnostics to study the thermodynamic history of the intracluster plasma of galaxy clusters. We present the entropy profile of the Abell 2244 galaxy clu…
MAD Adaptive Optics Imaging of High Luminosity Quasars: A Pilot Project
E. Liuzzo, R. Falomo, S. Paiano +14
We present near-IR images of five luminous quasars at z~2 and one at z~4 obtained with an experimental adaptive optics instrument at the ESO Very Large Telescope. The observations…
An origin for short g-ray bursts unassociated with current star formation
S. D. Barthelmy, G. Chincarini, D. N. Burrows +28
Two short (<2 s) g-ray bursts (GRBs) have recently been localized and fading afterglow counterparts detected. The combination of these two results left unclear the nature of the ho…
WINGS-SPE III: Equivalent width measurements, spectral properties and evolution of local cluster galaxies
J. Fritz, B. M. Poggianti, A. Cava +11
[Abridged] We investigate the frequency of the various spectral types as a function both of the clusters' properties and of the galaxies' characteristics. In this way, using the sa…
The morphological transformation of ram pressure stripped galaxies: a pathway from late to early galaxy types
A. Marasco, B. M. Poggianti, J. Fritz +5
We investigate how the ageing of stellar populations can drive a morphological transformation in galaxies whose star formation (SF) activity has been quenched on short timescales,…
Mining the XRT archive to probe the X-ray absorber structure in the AGN population
L. Ballo, P. Severgnini, A. Moretti +6
One of the key ingredients of the Unified Model of Active Galactic Nuclei (AGN) is the presence of a torus-like optically thick medium composed by dust and gas around the putative…
Swift and XMM observations of the dark GRB 050326
A. Moretti, A. De Luca, D. Malesani +30
We present Swift and XMM observations of GRB 050326, detected by Swift-BAT. The fluence was 7.7x10^-6 erg cm^-2 (20-150 keV), and its spectrum was hard, with a power law photon ind…
High- radio Quasars in RACS I: Selection, identification, and multi-wavelength properties
L. Ighina, A. Caccianiga, A. Moretti +21
Radio-bright, jetted quasars at serve as unique laboratories for studying supermassive black hole activity in the early Universe. In this work, we present a sample of high-$z…
GASP XVIII: Star formation quenching due to AGN feedback in the central region of a jellyfish galaxy
Koshy George, B. M. Poggianti, C. Bellhouse +12
We report evidence for star formation quenching in the central 8.6 kpc region of the jellyfish galaxy JO201 which hosts an active galactic nucleus, while undergoing strong ram pres…
Multiple tidal disruption flares in the active galaxy IC 3599
S. Campana, D. Mainetti, M. Colpi +4
Tidal disruption events occur when a star passes too close to a massive black hole and it is totally ripped apart by tidal forces. It may also happen that the star is not close eno…
Swift follow-up observations of unclassified ASCA sources
N. Degenaar, R. L. C. Starling, P. A. Evans +11
We present Swift follow-up observations of a sample of 35 unclassified faint X-ray sources drawn from the ASCA Galactic centre and plane surveys. Our short pointed XRT observations…
Multiplicities of positive and negative pions, kaons and unidentified hadrons from deep-inelastic scattering of muons off a liquid hydrogen target
G. D. Alexeev, M. G. Alexeev, C. Alice +166
The multiplicities of positive and negative pions, kaons and unidentified hadrons produced in deep-inelastic scattering are measured in bins of the Bjorken scaling variable , th…
U-band photometry of 17 WINGS clusters
A. Omizzolo, G. Fasano, D. Reverte Paya +12
This paper belongs to a series presenting the WIde Field Nearby Galaxy-cluster Survey (WINGS). The WINGS project has collected wide-field, optical (B,V) and near-infrared (J,K) ima…
The red-sequence of 72 WINGS local galaxy clusters
T. Valentinuzzi, B. M. Poggianti, G. Fasano +14
We study the color-magnitude red sequence and blue fraction of 72 X-ray selected galaxy clusters at z=0.04-0.07 from the WINGS survey, searching for correlations between the charac…
Observing ram pressure at work in intermediate redshift clusters with MUSE: the case of Abell 2744and Abell 370
A. Moretti, M. Radovich, B. M. Poggianti +11
Ram pressure stripping has been proven to be effective in shaping galaxy properties in dense environments at low redshift. The availability of MUSE observations of a sample of dist…
Panchromatic study of GRB 060124: from precursor to afterglow
P. Romano, S. Campana, G. Chincarini +35
We present observations of GRB 060124, the first event for which both the prompt and the afterglow emission could be observed simultaneously and in their entirety by the three Swif…
Double production in pion-nucleon scattering at COMPASS
G. D. Alexeev, M. G. Alexeev, A. Amoroso +191
We present the study of the production of double mesons using COMPASS data collected with a 190 GeV/ beam scattering off NH, Al and W targets. Kinematic dist…