Publications (132)
Metallicity of the polar disk in NGC4650A: constraints for cold accretion scenario
M. Spavone, E. Iodice, M. Arnaboldi +3
We used high resolution spectra in the optical and near-infrared wavelength range to study the abundance ratios and metallicities of the HII regions associated with the polar disk…
Directional dark matter detection sensitivity of a two-phase liquid argon detector
M. Cadeddu, M. Lissia, P. Agnes +38
We examine the sensitivity of a large scale two-phase liquid argon detector to the directionality of the dark matter signal. This study was performed under the assumption that, abo…
The GAP-TPC
B. Rossi, A. Anastasio, A. Boiano +10
Several experiments have been conducted worldwide, with the goal of observing low-energy nuclear recoils induced by WIMPs scattering off target nuclei in ultra-sensitive, low-backg…
DAME: A Distributed Data Mining & Exploration Framework within the Virtual Observatory
M. Brescia, S. Cavuoti, R. D'Abrusco +2
Nowadays, many scientific areas share the same broad requirements of being able to deal with massive and distributed datasets while, when possible, being integrated with services a…
Hickson 62.I. Kinematics of NGC4778
M. Spavone, E. Iodice, G. Longo +2
Detailed studies of the photometric and kinematical properties of compact groups of galaxies are crucial to understand the physics of galaxy interactions and to shed light on some…
A catalogue of photometric redshifts for the SDSS-DR9 galaxies
M. Brescia, S. Cavuoti, G. Longo +1
Accurate photometric redshifts for large samples of galaxies are among the main products of modern multiband digital surveys. Over the last decade, the Sloan Digital Sky Survey (SD…
Statistical characterization and classification of astronomical transients with Machine Learning in the era of the Vera C. Rubin Observatory
M. Vicedomini, M. Brescia, S. Cavuoti +2
Astronomy has entered the multi-messenger data era and Machine Learning has found widespread use in a large variety of applications. The exploitation of synoptic (multi-band and mu…
Search for dark matter particle interactions with electron final states with DarkSide-50
50 Collaboration, P. Agnes, I. F. M. Albuquerque +140
We present a search for dark matter particles with sub-GeV/ masses whose interactions have final state electrons using the DarkSide-50 experiment's (12306 184) kg d low-…
Further spectroscopic observations of the CSL-1 object
M. Sazhin, M. Capaccioli, G. Longo +2
CSL-1 is a peculiar object (R.A._{2000}= 12h 23m 30.5"; Dec_{2000}= -12deg 38' 57.0") which, for its photometric and spectroscopic properties, is possibly the first case of gravita…
Electromagnetic Backgrounds and Potassium-42 Activity in the DEAP-3600 Dark Matter Detector
R. Ajaj, G. R. Araujo, M. Batygov +88
The DEAP-3600 experiment is searching for WIMP dark matter with a 3.3 tonne single phase liquid argon (LAr) target, located 2.1 km underground at SNOLAB. The experimental signature…
Revisiting the formation History of the minor-axis dust lane galaxy NGC1947
M. Spavone, E. Iodice, R. Calvi +5
In this paper we present a detailed study of the peculiar early-type galaxy NGC1947. The main goal of this work is to constrain the dynamical status and the formation history of NG…
Characterization of spurious-electron signals in the double-phase argon TPC of the DarkSide-50 experiment
50 Collaboration, P. Agnes, I. F. Albuquerque +144
Spurious-electron signals in dual-phase noble-liquid time projection chambers have been observed in both xenon and argon Time Projection Chambers (TPCs). This paper presents the fi…
Calibration of the liquid argon ionization response to low energy electronic and nuclear recoils with DarkSide-50
The DarkSide collaboration, P. Agnes, I. F. M. Albuquerque +136
DarkSide-50 has demonstrated the high potential of dual-phase liquid argon time projection chambers in exploring interactions of WIMPs in the GeV/c mass range. The technique, b…
Search for dark matter annual modulation with DarkSide-50
50 Collaboration, P. Agnes, I. F. M. Albuquerque +142
Dark matter induced event rate in an Earth-based detector is predicted to show an annual modulation as a result of the Earth's orbital motion around the Sun. We searched for this m…
The use of neural networks to probe the structure of the nearby universe
R. d'Abrusco, G. Longo, M. Paolillo +4
In the framework of the European VO-Tech project, we are implementing new machine learning methods specifically tailored to match the needs of astronomical data mining. In this pap…
The true nature of CSL-1
M. V. Sazhin, M. Capaccioli, G. Longo +5
On January 12 2006, the Hubble Space Telescope observed the peculiar double extragalactic object CSL-1, suspected to be the result of gravitational lensing by a cosmic string. The…
Inside catalogs: a comparison of source extraction software
M. Annunziatella, A. Mercurio, M. Brescia +2
The scope of this paper is to compare the catalog extraction performances obtained using the new combination of SExtractor with PSFEx, against the more traditional and diffuse appl…
Effective field theory interactions for liquid argon target in DarkSide-50 experiment
50 Collaboration, P. Agnes, I. F. M. Albuquerque +164
We reanalize data collected with the DarkSide-50 experiment and recently used to set limits on the spin-independent interaction rate of weakly interacting massive particles (WIMPs)…
Photometric redshifts for the Kilo-Degree Survey. Machine-learning analysis with artificial neural networks
M. Bilicki, H. Hoekstra, M. J. I. Brown +24
We present a machine-learning photometric redshift analysis of the Kilo-Degree Survey Data Release 3, using two neural-network based techniques: ANNz2 and MLPQNA. Despite limited c…
SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range
The DarkSide collaboration, C. E. Aalseth, S. Abdelhakim +312
Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle…
Euclid: Searching for pair-instability supernovae with the Deep Survey
T. J. Moriya, C. Inserra, M. Tanaka +106
Pair-instability supernovae are theorized supernovae that have not yet been observationally confirmed. They are predicted to exist in low-metallicity environments. Because overall…
DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS
C. E. Aalseth, F. Acerbi, P. Agnes +282
Building on the successful experience in operating the DarkSide-50 detector, the DarkSide Collaboration is going to construct DarkSide-20k, a direct WIMP search detector using a tw…
Search for low-mass dark matter WIMPs with 12 ton-day exposure of DarkSide-50
50 Collaboration, P. Agnes, I. F. M. Albuquerque +139
We report on the search for dark matter WIMPs in the mass range below 10 GeV/c, from the analysis of the entire dataset acquired with a low-radioactivity argon target by the Da…
The Luminosity Function of 80 Abell Clusters from the CRoNaRio catalogues
S. Piranomonte, M. Paolillo, G. Longo +5
We present the composite luminosity function (hereafter LF) of galaxies for 80 Abell clusters studied in our survey of the Northern Hemisphere, using DPOSS data in the framework of…
The Multiplicity Function of Galaxies
E. Puddu, E. De Filippis, G. Longo +2
The multiplicity function (MF) of groups and clusters of galaxies is determined using galaxy catalogues extracted from a set of Digitized Palomar Sky Survey (DPOSS) plates. The two…
Long-term temporal stability of the DarkSide-50 dark matter detector
50 Collaboration, P. Agnes, I. F. M. Albuquerque +142
The stability of a dark matter detector on the timescale of a few years is a key requirement due to the large exposure needed to achieve a competitive sensitivity. It is especially…
Determining cosmological parameters from X-ray measurements of strong lensing clusters
M. Sereno, G. Longo
We discuss a new method which is potentially capable of constraining cosmological parameters using observations of giant luminous arcs in rich X-ray clusters of galaxies. The mass…
A Comparison of Photometric Redshift Techniques for Large Radio Surveys
Ray P. Norris, M. Salvato, G. Longo +14
Future radio surveys will generate catalogues of tens of millions of radio sources, for which redshift estimates will be essential to achieve many of the science goals. However, sp…
Low-Mass Dark Matter Search with the DarkSide-50 Experiment
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +192
We present the results of a search for dark matter WIMPs in the mass range below 20 GeV/c^2 using a target of low-radioactivity argon. The data were obtained using the DarkSide-50…
Cataloging of the Digitized POSS-II, and Some Initial Scientific Results From It
S. G. Djorgovski, R. R. de Carvalho, R. R. Gal +3
We are conducting an effort to catalog all sources detected in the digitized POSS-II (DPOSS). This is now becoming an international collaboration including Caltech and the Observat…
YMCA-1: a new remote star cluster of the Milky Way?
M. Gatto, V. Ripepi, M. Bellazzini +11
We report the possible discovery of a new stellar system (YMCA-1), identified during a search for small scale overdensities in the photometric data of the YMCA survey. The object's…
The Capodimonte Deep Field I - Presentation of the survey and first follow-up studies
J. M. Alcalá, M. Pannella, E. Puddu +16
We present the Capodimonte Deep Field (OACDF), a deep field covering an area of 0.5 square degrees in the B, V, R optical bands plus six medium-band filters in the wavelength range…
Photometric redshifts for Quasars in multi band Surveys
M. Brescia, S. Cavuoti, R. D'Abrusco +2
MLPQNA stands for Multi Layer Perceptron with Quasi Newton Algorithm and it is a machine learning method which can be used to cope with regression and classification problems on co…
The VO-Neural project: recent developments and some applications
M. Brescia, S. Cavuoti, G. d'Angelo +7
VO-Neural is the natural evolution of the Astroneural project which was started in 1994 with the aim to implement a suite of neural tools for data mining in astronomical massive da…
The VOICE Survey : VST Optical Imaging of the CDFS and ES1 Fields
M. Vaccari, G. Covone, M. Radovich +15
We present the VST Optical Imaging of the CDFS and ES1 Fields (VOICE) Survey, a VST INAF Guaranteed Time program designed to provide optical coverage of two 4 deg cosmic window…
Evaluation of probabilistic photometric redshift estimation approaches for The Rubin Observatory Legacy Survey of Space and Time (LSST)
S. J. Schmidt, A. I. Malz, J. Y. H. Soo +24
Many scientific investigations of photometric galaxy surveys require redshift estimates, whose uncertainty properties are best encapsulated by photometric redshift (photo-z) poster…
Quasar candidates selection in the Virtual Observatory era
R. D'Abrusco, G. Longo, N. A. Walton
We present a method for the photometric selection of candidate quasars in multiband surveys. The method makes use of a priori knowledge derived from a subsample of spectroscopic co…
A new search for variability-selected active galaxies within the VST SUDARE-VOICE survey: the Chandra Deep Field South and the SERVS-SWIRE area
S. Falocco, D. De Cicco, M. Paolillo +19
This work makes use of the VST observations to select variable sources. We use also the IR photometry, SED fitting and X-ray information where available to confirm the nature of th…
Simulation of argon response and light detection in the DarkSide-50 dual phase TPC
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +147
A Geant4-based Monte Carlo package named G4DS has been developed to simulate the response of DarkSide-50, an experiment operating since 2013 at LNGS, designed to detect WIMP intera…
A multifrequency analysis of radio variability of blazars
A. Ciaramella, C. Bongardo, H. D. Aller +9
We have carried out a multifrequency analysis of the radio variability of blazars, exploiting the data obtained during the extensive monitoring programs carried out at the Universi…
Variability-selected Active Galactic Nuclei in the VST-SUDARE/VOICE Survey of the COSMOS Field
D. De Cicco, M. Paolillo, G. Covone +16
Optical variability has proven to be an effective way of detecting AGNs in imaging surveys, lasting from weeks to years. In the present work we test its use as a tool to identify A…
Search for low mass dark matter in DarkSide-50: the bayesian network approach
50 Collaboration, P. Agnes, I. F. M. Albuquerque +140
We present a novel approach for the search of dark matter in the DarkSide-50 experiment, relying on Bayesian Networks. This method incorporates the detector response model into the…
Search for dark matter with a 231-day exposure of liquid argon using DEAP-3600 at SNOLAB
R. Ajaj, P. -A. Amaudruz, G. R. Araujo +99
DEAP-3600 is a single-phase liquid argon (LAr) direct-detection dark matter experiment, operating 2 km underground at SNOLAB (Sudbury, Canada). The detector consists of 3279 kg of…
Measurement of the ion fraction and mobility of Po produced in Rn decays in liquid argon
P. Agnes, I. F. M. Albuquerque, T. Alexander +163
We report measurements of the charged daughter fraction of Po as a result of the Rn alpha decay, and the mobility of Po ions, using radon-polonium coinc…
Steps toward a classifier for the Virtual Observatory. I. Classifying the SDSS photometric archive
R. D'Abrusco, A. Staiano, G. Longo +2
Modern photometric multiband digital surveys produce large amounts of data that, in order to be effectively exploited, need automatic tools capable to extract from photometric data…
Separating Ar from Ar by cryogenic distillation with Aria for dark matter searches
DarkSide Collaboration, P. Agnes, S. Albergo +309
The Aria project consists of a plant, hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is currently in the installation phase in a mine shaft a…
Attacking (and defending) the Maritime Radar System
G. Longo, E. Russo, A. Armando +1
Operation of radar equipment is one of the key facilities used by navigators to gather situational awareness about their surroundings. With an ever increasing need for always-runni…
An "alien" called Oosterhoff dichotomy?
E. Luongo, V. Ripepi, M. Marconi +4
In this letter we investigate the origin of the Oosterhoff dichotomy, considering recent discoveries related to several ancient merging events of external galaxies with the Milky W…
Spectral Analysis of Stellar Light Curves by Means of Neural Networks
R. Tagliaferri, A. Ciaramella, L. Milano +2
Periodicity analysis of unevenly collected data is a relevant issue in several scientific fields. In astrophysics, for example, we have to find the fundamental period of light or r…
Wide Field Imaging. I. Applications of Neural Networks to object detection and star/galaxy classification
S. Andreon, G. Gargiulo, G. Longo +2
[Abriged] Astronomical Wide Field Imaging performed with new large format CCD detectors poses data reduction problems of unprecedented scale which are difficult to deal with tradit…
Extended stellar kinematics of elliptical galaxies in the Fornax cluster
Alister Graham, Matthew Colless, Giovanni Busarello +2
We present extended stellar kinematics for a sample of 13 elliptical galaxies in the Fornax cluster. Major-axis velocity dispersion profiles (VDPs) and rotation curves (RCs) are gi…
Star Formation Rates for photometric samples of galaxies using machine learning methods
M. Delli Veneri, S. Cavuoti, M. Brescia +2
Star Formation Rates or SFRs are crucial to constrain theories of galaxy formation and evolution. SFRs are usually estimated via spectroscopic observations requiring large amounts…
Galaxy evolution within the Kilo-Degree Survey
C. Tortora, N. R. Napolitano, F. La Barbera +8
The ESO Public Kilo-Degree Survey (KiDS) is an optical wide-field imaging survey carried out with the VLT Survey Telescope and the OmegaCAM camera. KiDS will scan 1500 square degre…
CALIS - a CALibration Insertion System for the DarkSide-50 dark matter search experiment
P. Agnes, I. F. M. Albuquerque, T. Alexander +162
This paper describes the design, fabrication, commissioning and use of a CALibration source Insertion System (CALIS) in the DarkSide-50 direct dark matter search experiment. CALIS…
Neural Nets and Star/Galaxy Separation in Wide Field Astronomical Images
S. Andreon, G. Gargiulo, G. Longo +2
One of the most relevant problems in the extraction of scientifically useful information from wide field astronomical images (both photographic plates and CCD frames) is the recogn…
The first sample of spectroscopically confirmed ultra-compact massive galaxies in the Kilo Degree Survey
C. Tortora, N. R. Napolitano, M. Spavone +25
We present results from an ongoing investigation using the Kilo Degree Survey (KiDS) on the VLT Survey Telescope (VST) to provide a census of ultra-compact massive galaxies (UCMGs)…
Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC
P. Agnes, I. F. M. Albuquerque, T. Alexander +163
We report the measurement of the longitudinal diffusion constant in liquid argon with the DarkSide-50 dual-phase time projection chamber. The measurement is performed at drift elec…
Discovery of NES, an extended tidal structure in the North-East of the Large Magellanic Cloud
M. Gatto, V. Ripepi, M. Bellazzini +4
We report on the discovery of a new diffuse stellar sub-structure protruding for 5 degrees from the North-Eastern rim of the LMC disc. The structure, that we dub North-East Structu…
An X-ray investigation of Hickson 62
S. Sodani, E. De Filippis, M. Paolillo +2
We studied the X-ray properties of the Hickson Compact Group HCG62, in order to determine the properties and dynamic and evolutionary state of its hot gaseous halo. Our analysis re…
Astrophysics in S.Co.P.E
M. Brescia, S. Cavuoti, G. D'Angelo +5
S.Co.P.E. is one of the four projects funded by the Italian Government in order to provide Southern Italy with a distributed computing infrastructure for fundamental science. Besid…
Extending the variability selection of active galactic nuclei in the W-CDF-S and SERVS/SWIRE region
M. Poulain, M. Paolillo, D. De Cicco +14
Variability has proven to be a powerful tool to detect active galactic nuclei (AGN) in multi-epoch surveys. The new-generation facilities expected to become operational in the next…
Measuring the Three-Dimensional Structure of Galaxy Clusters. II. Are clusters of galaxies oblate or prolate?
M. Sereno, E. De Filippis, G. Longo +1
The intrinsic shape of galaxy clusters can be obtained through a combination of X-ray and Sunyaev-Zeldovich effect observations once cosmological parameters are assumed to be known…
Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector
P. Adhikari, R. Ajaj, C. E. Bina +81
DEAP-3600 is a single-phase liquid argon detector aiming to directly detect Weakly Interacting Massive Particles (WIMPs), located at SNOLAB (Sudbury, Canada). After analyzing data…
The Multiplicity Function of groups of galaxies from CRoNaRio catalogues
E. De Filippis, G. Longo, S. Andreon +4
The projected multiplicity function of galaxies gives (per square degree) the density of galaxy aggregates formed by N members. We use the CRoNaRio matched catalogues to derive the…
Nature versus nurture: relic nature and environment of the most massive passive galaxies at
C. Tortora, N. R. Napolitano, M. Radovich +13
Relic galaxies are thought to be the progenitors of high-redshift red nuggets that for some reason missed the channels of size growth and evolved passively and undisturbed since th…
Gravitational lensing by cosmic strings: what we learn from the CSL-1 case
M. V. Sazhin, O. S. Khovanskaya, M. Capaccioli +5
Cosmic strings were postulated by Kibble in 1976 and, from a theoretical point of view, their existence finds support in modern superstring theories, both in compactification model…
CLaSPS: a new methodology for Knowledge extraction from complex astronomical dataset
R. D'Abrusco, G. Fabbiano, G. Djorgovski +3
In this paper we present the Clustering-Labels-Score Patterns Spotter (CLaSPS), a new methodology for the determination of correlations among astronomical observables in complex da…
Photometric redshifts for X-ray-selected active galactic nuclei in the eROSITA era
M. Brescia, M. Salvato, S. Cavuoti +5
With the launch of eROSITA (extended Roentgen Survey with an Imaging Telescope Array), successfully occurred on 2019 July 13, we are facing the challenge of computing reliable phot…
Comparison between methods for the determination of the primary cosmic ray mass composition from the longitudinal profile of atmospheric cascades
M. Ambrosio, C. Aramo, C. Donalek +5
The determination of the primary cosmic ray mass composition from the longitudinal development of atmospheric cascades is still a debated issue. In this work we discuss several dat…
Automated search for LSB galaxies
S. Sabatini, R. Scaramella, V. Testa +4
Low Surface Brightness Galaxies (LSBGs) today constitute the less known fraction of galaxies: their number density and their physical properties (e.g. luminosity, colour, dynamics)…
Early versus late type galaxies in compact groups
A. A. Shaker, G. Longo, P. Merluzzi
We find a strong correlation between the effective radius of the largest early-type galaxies in compact groups of galaxies and the velocity dispersion of the groups. The lack of a…
GRID-Launcher v.1.0
N. Deniskina, M. Brescia, S. Cavuoti +3
GRID-launcher-1.0 was built within the VO-Tech framework, as a software interface between the UK-ASTROGRID and a generic GRID infrastructures in order to allow any ASTROGRID user t…
Lens candidates in the Capodimonte Deep Field in the vicinity of the CSL1 object
M. V. Sazhin, O. S. Khovanskaya, M. Capaccioli +4
CSL1 is a peculiar object discovered in the OACDF. Photometric and spectroscopic investigation strongly suggest that it may be the first case of gravitational lensing by cosmic str…
Measuring the Three-Dimensional Structure of Galaxy Clusters. I. Application to a Sample of 25 Clusters
E. De Filippis, M. Sereno, M. W. Bautz +1
We discuss a method to constrain the intrinsic three-dimensionale shapes of galaxy clusters by combining X-Ray and Sunyaev-Zeldovich observations. The method is applied to a sample…
Deep VLT photometry of the faint stellar system in the Large Magellanic Cloud periphery YMCA-1
M. Gatto, V. Ripepi, M. Bellazzini +11
We present FORS2@VLT follow-up photometry of YMCA-1, a recently discovered stellar system located 13\degr~from the Large Magellanic Cloud (LMC) center. The deep color-magnitude dia…
The Fornax Cluster VLT Spectroscopic Survey IV -- Cold kinematical substructures in the Fornax core from COSTA
N. R. Napolitano, M. Gatto, C. Spiniello +15
The COld STream finder Algorithm (COSTA) is a novel algorithm to find streams in the phase space of planetary nebulae (PNe) and globular cluster (GCs) populations. COSTA isolates g…
STEP Survey II: Structural Analysis of 170 star clusters in the SMC
M. Gatto, V. Ripepi, M. Bellazzini +9
We derived surface brightness profiles in the \emph{g} band for 170 Small Magellanic Cloud (SMC) star clusters (SCs) mainly located in the central region of the galaxy. We provide…
The Extended Spatial Distribution of Globular Clusters in the Core of the Fornax Cluster
R. D'Abrusco, M. Cantiello, M. Paolillo +16
We report the discovery of a complex extended density enhancement in the Globular Clusters (GCs) in the central ( Mpc) of the Fornax cluster,…
Use of DPOSS data to study globular cluster halos: an application to M 92
V. Testa, S. R. Zaggia, S. Andreon +4
We exploited the large areal coverage offered by the DPOSS to analyze the outermost regions of the galactic globular cluster M 92. Two independent photometric reduction programs (S…
Euclid. I. Overview of the Euclid mission
Euclid Collaboration, Y. Mellier, Abdurro'uf +1134
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…
Constraints on Sub-GeV Dark Matter-Electron Scattering from the DarkSide-50 Experiment
The DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +193
We present new constraints on sub-GeV dark matter particles scattering off electrons in argon based on an analysis of ionization signal data from the DarkSide-50 detector.
Pulseshape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data
The DEAP Collaboration, P. Adhikari, R. Ajaj +126
The DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. The largest background comes from Ar b…
A kinematically decoupled component in NGC4778
M. Spavone, E. Iodice, G. Longo +1
We present a kinematical and photometrical study of a member, NGC4778, of the nearest (z=0.0137) compact group: Hickson 62. Our analysis reveals that Hickson 62a, also known as NGC…
Major axis kinematics of 15 early-type galaxies in the Fornax cluster
M. D'Onofrio, S. R. Zaggia, G. Longo +2
Major axis rotation curves and velocity dispersions profiles, extending out to about one effective radius, are presented for 15 ellipticals and S0's out of the photometric sample o…
COSTA: the COld STream finder Algorithm. Searching for kinematical substructures in the phase space of discrete tracers
M. Gatto, N. R. Napolitano, C. Spiniello +2
Context: We present COSTA (COld STream finder Algorithm), a novel algorithm to search for cold kinematical substructures in the phase space of planetary nebulae (PNe) and globular…
Object identification in POSS-II plates by means of Neural Networks
S. Andreon, N. Capuano, G. Gargiulo +3
This paper have been withdraw by the autors, because of a too early submission.
The CRONA (Caltech-Roma-Napoli) project
S. Andreon, S. Zaggia, R. de Carvalho +4
The CRONA project is a joint enterprise between Caltech and the astronomical observatory of Rome and Naples aimed to the photometric calibration of the Second Palomar Sky Survey (P…
Luminosity function of clusters of galaxies
M. Paolillo, S. Andreon, G. Longo +5
The composite galaxy luminosity function (hereafter LF) of 39 Abell clusters of galaxies is derived by computing the statistical excess of galaxy counts in the cluster direction wi…
Groups and clusters detection on DPOSS catalogs
E. Puddu, E. De Filippis, V. Strazzullo +5
We discuss the implementation and validation of a procedure aimed to detect groups and clusters of galaxies in DPOSS catalogs.
The Luminosity Function of the NoSOCS Galaxy Cluster Sample
E. De Filippis, M. Paolillo, G. Longo +3
We present the analysis of the luminosity function of a large sample of galaxy clusters from the Northern Sky Optical Cluster Survey, using latest data from the Sloan Digital Sky S…
Evolution of galaxy size--stellar mass relation from the Kilo Degree Survey
N. Roy, N. R. Napolitano, F. La Barbera +16
We have obtained structural parameters of about 340,000 galaxies from the Kilo Degree Survey (KiDS) in 153 square degrees of data release 1, 2 and 3. We have performed a seeing con…
The Palomar Digital Sky Survey (DPOSS)
S. G. Djorgovski, R. R. Gal, S. C. Odewahn +4
We describe DPOSS, a new digital survey of the northern sky, based on the POSS-II photographic sky atlas. The survey covers the entire sky north of delta = -3 deg in 3 bands, calib…
Data reduction and astrometry strategies for wide-field images: an application to the Capodimonte Deep Field
J. M. Alcala', M. Radovich, R. Silvotti +4
The Capodimonte Deep Field (OACDF) is a multi-colour imaging survey on two 0.5x0.5 square degree fields performed in the BVRI bands and in six medium-band filters (700 - 900 nm) wi…
The Luminosity Function of 24 Abell Clusters from the CRoNaRio catalogues
M. Paolillo, S. Andreon, G. Longo +7
We present the composite luminosity function of galaxies for 24 Abell clusters studied in our survey of the Northern Hemisphere, using DPOSS data in the framework of the CRoNaRio c…
Photometric validation of a model independent procedure to extract galaxy clusters
E. Puddu, S. Andreon, G. Longo +3
By means of CCD photometry in three bands (Gunn g, r, i) we investigate the existence of 12 candidate clusters extracted via a model independent peak finding algorithm (\cite{memsa…
A search for star clusters in the outskirts of the Large Magellanic Cloud: indication of clusters in the age gap
M. Gatto, V. Ripepi, M. Bellazzini +7
The YMCA (Yes, Magellanic Clouds Again) and STEP ({The SMC in Time: Evolution of a Prototype interacting late-type dwarf galaxy) projects are deep g,i photometric surveys carried o…
The Electronics, Trigger and Data Acquisition System for the Liquid Argon Time Projection Chamber of the DarkSide-50 Search for Dark Matter
DarkSide Collaboration, P. Agnes, I. F. M. Albuquerque +177
The DarkSide-50 experiment at the Laboratori Nazionali del Gran Sasso is a search for dark matter using a dual phase time projection chamber with 50 kg of low radioactivity argon a…
Euclid preparation: X. The Euclid photometric-redshift challenge
Euclid Collaboration, G. Desprez, S. Paltani +170
Forthcoming large photometric surveys for cosmology require precise and accurate photometric redshift (photo-z) measurements for the success of their main science objectives. Howev…
CTA Contributions to the 34th International Cosmic Ray Conference (ICRC2015)
The CTA Consortium, :, A. Abchiche +1305
List of contributions from the CTA Consortium presented at the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands.
SUDARE-VOICE variability-selection of Active Galaxies in the Chandra Deep Field South and the SERVS/SWIRE region
S. Falocco, M. Paolillo, G. Covone +18
One of the most peculiar characteristics of Active Galactic Nuclei (AGN) is their variability over all wavelengths. This property has been used in the past to select AGN samples an…