The many facets of extragalactic radio surveys: towards new scientific challenges

Radio continuum surveys are a powerful tool to detect large number of objects over a wide range of redshifts and obtain information on the intensity, polarization and distribution properties of radio sources across the sky. They are essential to answer to fundamental questions of modern astrophysics. Radio astronomy is in the midst of a transformation. Developments in high-speed digital signal processing and broad-band optical fibre links between antennas have enabled significant upgrades of the existing radio facilities (e-MERLIN, JVLA, ATCA-CABB, eEVN, APERTIF), and are leading to next-generation radio telescopes (LOFAR, MWA, ASKAP, MeerKAT). All these efforts will ultimately lead to the realization of the Square Kilometre Array (SKA), which, owing to advances in sensitivity, field-of-view, frequency range and spectral resolution, will yield transformational science in many astrophysical research fields. The purpose of this meeting is to explore new scientific perspectives offered by modern radio surveys, focusing on synergies allowed by multi-frequency, multi-resolution observations. We will bring together researchers working on wide aspects of the physics and evolution of extra-galactic radio sources, from star-forming galaxies to AGNs and clusters of galaxies, including their role as cosmological probes. The organization of this conference has been inspired by the recent celebration of the 50th anniversary of the Northern Cross Radio Telescope in Medicina (BO), whose pioneering B2 and B3 surveys provided a significant contribution to radio astronomical studies for many decades afterwards. The conference was organized by the Istituto di Radioastronomia (INAF), and was held at the CNR Research Area in Bologna, on 20-23 October 2015. This Conference has received support from the following bodies and funding agencies: National Institute for Astrophysics (INAF), ASTRON, RadioNet3 (through the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 283393) and the Ministry of Foreign Affairs and International Cooperation, Directorate General for the Country Promotion (under the Bilateral Grant Agreement ZA14GR02 - Mapping the Universe on the Pathway to SKA).

Scientific Organizing Committee: I. Prandoni (INAF-IRA) co-chair R. Morganti (ASTRON) co-chair P. Best (ROE) A. Bonafede (Hamburg Univ.) R. Braun (SKA Org) L. Feretti (INAF-IRA) M. Jarvis (Western Cape/Oxford Univ.) E. Murphy (Caltech) R. Norris (CSIRO) M. Perez-Torres (IAA) L. Saripalli (Raman) T. Venturi (INAF-IRA) Local Organizing Committee: R. Cassano (co-chair) I. Prandoni (co-chair) A. Casoni D. Guidetti R. Lico R. Ricci M. Stagni

Sessions
SESSION I: SETTING THE SCENE
SESSION II: STAR FORMATION
SESSION III: THE TRANSIENT UNIVERSE
SESSION IV: GALAXY EVOLUTION I
SESSION V: COSMOLOGY
SESSION VI: EXPLOITING SYNERGIES
SESSION VII: GALAXY CLUSTERS
SESSION VIII: GALAXY EVOLUTION - II
SESSION IX: COSMIC MAGNETISM
SESSION X: AGN PHYSICS

SESSION I: SETTING THE SCENE
Once upon a time: from the early surveys to the epoch of the northern cross PoS(EXTRA-RADSUR2015)001 pdf C. Fanti
Extragalactic science with Lofar PoS(EXTRA-RADSUR2015)002 H.J.A. Rottgering
The MWA GLEAM 4 Jy sample; a new large, bright radio source sample at 151 MHz PoS(EXTRA-RADSUR2015)003 pdf C.A. Jackson, T. Franzen, N. Seymour, S. White, T. Murphy, E.M. Sadler, J.R. Callingham, R.W. Hunstead, J. Hughes, J. Wall, M.E. Bell, K. Dwarakanath, B.Q. For, B. Gaensler, P.J. Hancock, L. Hindson, N. Hurley-Walker, M. Johnston-Hollitt, A.D. Kapinska, E. Lenc, B. McKinley, J. Morgan, A. Offringa, P. Procopio, L. Staveley-Smith, R. Wayth, C. Wu and Q. Zheng
Radio continuum surveys: lessons learned PoS(EXTRA-RADSUR2015)004 pdf J. Condon
Evolutionary Map of the Universe: large-n astronomy PoS(EXTRA-RADSUR2015)005 pdf R.P. Norris
The Vla Sky Survey PoS(EXTRA-RADSUR2015)006 pdf E. Murphy
The new deep radio surveys: V-DECS and MIGHTEE PoS(EXTRA-RADSUR2015)007 M. Jarvis
Radio galaxy zoo: host galaxies and radio morphologies for large surveys from visual inspection PoS(EXTRA-RADSUR2015)008 pdf K. Willett
SESSION II: STAR FORMATION
Star formation astrophysics in the context of radio continuum observations: theoretical framework and open questions PoS(EXTRA-RADSUR2015)010 G. Helou
Magnetic fields on a wide range of scales in star-forming galaxies PoS(EXTRA-RADSUR2015)011 pdf G. Heald, A. Williams and S.S. Sridhar
A search for magnetic fields around disk-like galaxies at z~0.5 PoS(EXTRA-RADSUR2015)012 pdf A. Williams, B. Lundgren, S.A. Mao, E. Wilcots, D.G. York and E. Zweibel
Star formation: The role of high resolution radio surveys PoS(EXTRA-RADSUR2015)013 pdf R.J. Beswick, M. Argo, T.W.B. Muxlow, N. Wrigley and J. Radcliffe
Unveiling the physics of star formation and feedback in galaxies PoS(EXTRA-RADSUR2015)014 pdf F. Tabatabaei
NIKA 2: next-generation continuum/polarized camera at the IRAM 30 m telescope and its prototype PoS(EXTRA-RADSUR2015)016 pdf A. Ritacco
SESSION III: THE TRANSIENT UNIVERSE
Charting the Transient Universe using Radio Continuum Surveys PoS(EXTRA-RADSUR2015)017 pdf J.P. Macquart
Orphan afterglows: the off-axis view of gamma ray bursts PoS(EXTRA-RADSUR2015)018 pdf G. Ghirlanda
The VLA Low Band Ionospheric and Transient Experiment (VLITE): A Commensal Sky Survey PoS(EXTRA-RADSUR2015)019 pdf T. Clarke, N.E. Kassim, E. Polisensky, W. Peters, S. Giacintucci and S.D. Hyman
SESSION IV: GALAXY EVOLUTION I
Radio continuum surveys and galaxy evolution: the AGN view PoS(EXTRA-RADSUR2015)022 pdf V. Smolcic
Ultra-deep sub-arcsec 5 GHz JVLA observations of GOODS-N: the nature of the radio emission in the faint radio source population PoS(EXTRA-RADSUR2015)023 pdf D. Guidetti, M. Bondi, I. Prandoni, R.J. Beswick, T.W.B. Muxlow, N. Wrigley and I. Smail
Nowhere to Hide - Wide-field VLBI of the Hubble Deep Field-North PoS(EXTRA-RADSUR2015)024 pdf J. Radcliffe, M.A. Garrett, R.J. Beswick, T.W.B. Muxlow and P.D. Barthel
Feeding the monsters at low frequencies: LOFAR & the evolution of radio-loud AGN PoS(EXTRA-RADSUR2015)025 pdf W. Williams, H.J.A. Rottgering, R. Van Weeren and G. Calistro Rivera
Exploring the faint source population at 15.7 GHz PoS(EXTRA-RADSUR2015)026 pdf I.H. Whittam
The Spitzer Data Fusion: Contents, Construction and Applications to Galaxy Evolution Studies PoS(EXTRA-RADSUR2015)027 pdf M. Vaccari
SESSION V: COSMOLOGY
The role of HI & continuum radio surveys in cosmology PoS(EXTRA-RADSUR2015)030 pdf M. Santos
Weak lensing with radio continuum surveys PoS(EXTRA-RADSUR2015)031 pdf P. Patel
Predictions for dark matter in galaxy clusters with new radio surveys PoS(EXTRA-RADSUR2015)032 E. Storm
RadioLensfit: bayesian weak lensing measurement in the visibility domain PoS(EXTRA-RADSUR2015)033 pdf M. Rivi, L. Miller, S. Makhathini and F.B. Abdalla
SESSION VI: EXPLOITING SYNERGIES
SKA status and radio continuum surveys PoS(EXTRA-RADSUR2015)034 R. Braun
HI and continuum surveys working together PoS(EXTRA-RADSUR2015)035 pdf T. Oosterloo
Magnetism and continuum surveys working together PoS(EXTRA-RADSUR2015)036 pdf F. Govoni, M. Murgia, V. Vacca, F. Loi, L. Feretti, G. Giovannini, M. Trasatti, C. Ferrari and A. Bonafede
SESSION VII: GALAXY CLUSTERS
Non-thermal phenomena in galaxy clusters: seeing beyond the tip of the iceberg PoS(EXTRA-RADSUR2015)037 pdf R. Cassano
Diffuse radio emission in galaxy clusters: observational evidence PoS(EXTRA-RADSUR2015)038 pdf R. Van Weeren
10 years of GMRT radio halo survey and beyond PoS(EXTRA-RADSUR2015)039 T. Venturi
Radio halos in galaxy clusters: insight from a mass-selected sample PoS(EXTRA-RADSUR2015)040 pdf V. Cuciti
A KAT–7 view of a low-mass sample of galaxy clusters PoS(EXTRA-RADSUR2015)041 pdf G. Bernardi, T. Venturi, R. Cassano, D. Dallacasa, G. Brunetti, V. Cuciti, M. Johnston-Hollitt, N. Oozeer and O. Smirnov
Radio sources in the Massive and Distant Clusters of the WISE Survey (MaDCoWS) PoS(EXTRA-RADSUR2015)042 pdf R. Kale and V. Parekh
Radio mini-halos and AGN heating in cool core clusters of galaxies PoS(EXTRA-RADSUR2015)043 pdf M. Gitti
Giant radio galaxies as probes of the large-scale structure PoS(EXTRA-RADSUR2015)044 pdf L. Saripalli and J.M. Malarecki
The ATLAS-SPT radio survey of cluster galaxies PoS(EXTRA-RADSUR2015)045 pdf A. O'Brien, R.P. Norris, N.F.H. Tothill and M.D. Filipovic
Constraining magnetic field strength in radio relics PoS(EXTRA-RADSUR2015)046 pdf A. Botteon, G. Brunetti and D. Dallacasa
On the connection between radio mini-halos and gas heating in cool-core clusters PoS(EXTRA-RADSUR2015)047 pdf L. Bravi, M. Gitti and G. Brunetti
Extended Diffuse Radio Emission in Abell 115 PoS(EXTRA-RADSUR2015)048 pdf C. Dumba, M. Hoeft, A. Drabent and A. Bonafede
Reconciling radio relic observations and simulations: The NVSS sample PoS(EXTRA-RADSUR2015)049 pdf J. Gelszinnis, M. Hoeft and S.E. Nuza
Far-infrared-radio relation in cluster galaxies at intermediate redshift PoS(EXTRA-RADSUR2015)050 pdf S. Randriamampandry
Combining survey data with single-dish observations PoS(EXTRA-RADSUR2015)051 pdf M. Trasatti, G. Giovannini, U. Klein, A. Bonafede, F. Govoni and M. Murgia
SESSION VIII: GALAXY EVOLUTION - II
Radio continuum surveys and galaxy evolution: modelling and simulations PoS(EXTRA-RADSUR2015)052 pdf A. Slyz
Limits of noise and confusion in the MWA GLEAM year 1 survey PoS(EXTRA-RADSUR2015)053 pdf T. Franzen
Modeling star formation and AGN activity in sub-mJy radio surveys PoS(EXTRA-RADSUR2015)054 pdf C. Mancuso, M. Bonato, A. Lapi, G. De Zotti and L. Danese
Star-forming galaxies versus low- and high-excitation radio AGN in the VLA-COSMOS 3GHz Large Project PoS(EXTRA-RADSUR2015)055 pdf N. Baran, V. Smolcic, M. Novak, J. Delhaize, P. Capak, F. Civano, N. Herrera Ruiz, O. Ilbert, C. Laigle, S. Marchesi, H.J. McCracken, E. Middelberg, M. Salvato and E. Schinnerer
Is there any feedback between AGN and star-forming activity in radio-selected AGN? PoS(EXTRA-RADSUR2015)056 pdf M. Magliocchetti, D. Lutz, P. Santini, M. Salvato, P. Paola, S. Berta, P. Francesca and D. Rosario
Deep radio surveys at 325 MHz of legacy fields with GMRT: Search for High-redshift Radio Galaxies revisited PoS(EXTRA-RADSUR2015)057 pdf C.H. Ishwara-Chandra
SESSION IX: COSMIC MAGNETISM
Constraining magnetic fields and particle acceleration processes in galaxy clusters: a joint VLA/LOFAR view on Coma and SKA perspectives PoS(EXTRA-RADSUR2015)063 pdf A. Bonafede
Detecting the cosmic web with radio surveys PoS(EXTRA-RADSUR2015)064 pdf F. Vazza, M. Brüggen, C. Gheller, C. Ferrari and A. Bonafede
Uniqueness of galaxy groups in the structural hierarchy from its radio signature PoS(EXTRA-RADSUR2015)065 pdf P. Surajit, P. Gupta, R.S. John and V. Punjabi
SESSION X: AGN PHYSICS
Radio galaxies: physics and surveys PoS(EXTRA-RADSUR2015)067 pdf R. Laing
Statistical studies of remnant radio galaxies and implications for the dynamical evolution of radio galaxies PoS(EXTRA-RADSUR2015)068 L. Godfrey
Dying radio galaxies in the LOFAR Lockman Hole PoS(EXTRA-RADSUR2015)069 pdf M. Brienza, E. Mahony, R. Morganti, I. Prandoni and L. Godfrey
The systematic spectral analysis of radio surveys PoS(EXTRA-RADSUR2015)070 pdf J. Harwood and R. Morganti
A LOFAR survey of spatially resolved Ultra Steep Spectrum sources PoS(EXTRA-RADSUR2015)071 pdf L. Morabito, A. Deller, J. Moldón, R. Oonk, G.G.K. Miley and H.J.A. Rottgering
Radio-loud AGN-jet morphology and polarization: the role of ultra-high resolution radio surveys PoS(EXTRA-RADSUR2015)072 pdf I. Agudo
RadioAstron survey of AGN cores with extreme angular resolution PoS(EXTRA-RADSUR2015)073 Y.Y. Kovalev
The third Fermi catalogues of gamma-ray sources and active galactic nuclei PoS(EXTRA-RADSUR2015)074 M. Giroletti
Unveiling the submerged part of the iceberg: radio-loud narrow-line Seyfert 1s with SKA PoS(EXTRA-RADSUR2015)075 pdf M. Berton, L. Foschini, A. Caccianiga, J.L. Richards, S. Ciroi, E. Congiu, V. Cracco, G. La Mura, L. Marafatto and P. Rafanelli
Polarimetric multi-frequency observations of a complete sample of radio sources PoS(EXTRA-RADSUR2015)076 pdf V. Galluzzi, M. Massardi and L. Gregorini
Spiral DRAGNs PoS(EXTRA-RADSUR2015)077 pdf M. Mao
Concluding remarks PoS(EXTRA-RADSUR2015)079 M.A. Garrett