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Portineria DIFA - Sede principale

Dipartimento di Fisica e Astronomia

viale Berti Pichat, 6/2

40127 - Bologna - Italia

tel: +39 051 20 9 5162

fax: +39 051 252774

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

Lunedì-venerdì: ore 8:00-18:00

Direzione

Prof. Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257

 
Sezioni

Search for neutrino emission in coincidence with the gravitational wave event detected by the LIGO observatories

On September 14th, 2015, a gravitational wave was recorded by the LIGO detectors. A search for high-energy neutrino emission in coincidence with this event was performed, using the data recorded by the ANTARES and IceCube neutrino telescopes. No neutrino was found, establishing the first experimental limit to the joint production of neutrinos from a gravitational wave source

News DIFA

Non-thermal dark matter in supersymmetric models with a 125 GeV Higgs
We study the phenomenology of supersymmetric theories where a non-thermally produced neutralino can play the role of dark matter. Focusing on models which give a correct Higgs mass around 125 GeV, no dark matter overproduction and satisfay all existing exparimental bounds from colliders, cosmic microwave background data, direct and indirect dark matter searches, we find that the neutralino has to be Higgsino-like with a mass around 300 GeV
Iterative approach to self-adapting and altitude-dependent regularization for atmospheric profile retrievals
A practical approach is proposed to apply a regularization constraint to concentration profiles of atmospheric constituents obtained from the ill-conditioned inversion of spectroscopic measurements. The strength of the constraint is self-adapting and height-dependent
The rise of low-cost sensing for managing air pollution in cities
Impacts on the health of city dwellers due to high air pollution exposure are unknown; Conventional sparse monitoring stations are unable to identify pollution hotspots; Low-cost micro-scale sensing allows capturing real-time high-grained pollution data; Fundamental drivers behind the rise of low-cost sensing and challenges are discussed.
City breathability in medium density urban-like geometries evaluated through the pollutant transport rate and the net escape velocity
Pollutant removal in urban canopy models (UCL) models of medium building density is studied. Pollutant transport rate (PTR) and net escape velocity (NEV) are used as ventilation indicators. NEV is smaller in UCLs with longer streets due to pollutant accumulation effect. Parallel wind and wall heating get bigger NEV than oblique wind and isothermal case. Building height variations enhance pollutant removal across street roofs.
Premio Musto 2015 per la Fisica Teorica a Michele Cicoli
Il conferimento del premio motivato dalla ampia produzione su varie tematiche tutte di grande interesse e, in particolare, dai risultati ottenuti nell’ambito della cosiddetta “Fenomemologia di Stringa”.
Opere della biblioteca “Guido Horn D’Arturo” disponibili in rete
AMS Historica è una delle collezioni di AlmaDL e ospita le digitalizzazioni di opere antiche e di pregio conservate presso le biblioteche e gli archivi dell'Università
A simple all-PEDOT:PSS electrochemical transistor for ascorbic acid sensing
Over the past decade, the development of organic electronics has led to the fabrication of new devices that find application in many fields of science and technology
A very active group
Multiple AGN in the crowded field of the compact group SDSSJ0959+1259
Charge Density Increase in Sub-Monolayer Organic Field-Effect Transistors
The researchers found that even in the so-called sub-monolayer regime charge transport happens along a percolation path.
GEMINI/GeMS observations unveil the structure of the heavily obscured globular cluster Liller 1
By exploiting the near-IR camera GSAOI combined with the multi-conjugate adaptive optics system GeMS at the GEMINI South Telescope, our group investigated the heavily obscured globular cluster Liller 1 in the Galactic bulge.
Horizon Wave-Function and the Quantum Cosmic Censorship
Some cosmological notions are extended to the realm of black hole physics by means of the horizon wave function formalism, developed by the authors. The essence of this formalism is that basic black hole physics notions, like the event horizon radius, acquire a quantum probabilistic character.
Nanocrystal Formation in Silicon Oxy-Nitride Films for Photovoltaic Applications: Optical and Electrical Properties
In the present contribution we investigated the properties of one Si based oxides (SiOxNy) which has recently attracted a lot of attention in different and innovative applications, like CO2 capture, waveguides for nanosensors, and as conductive oxide.
Optical Properties of Nanoporous Germanium Thin Films
In the present article we report enhanced light absorption, tunable size-dependent blue shift, and efficient electron–hole pairs generation in Ge nanoporous films (np-Ge) grown on Si.
Physical and Electrochemical Properties of PEDOT:PSS as a Tool for Controlling Cell Growth
In this work, researchers of the DIFA report on the results they have obtained on thin films of PEDOT:PSS (poly(3,4-ethylenedioxythiophene) poly-(styrenesulfonate)).
Resonant X-ray scattering probes electron transfer in TiO2 nanoparticles
Advances in experimental methods based on synchrotron radiation make it possible to obtain new insights on the structure and properties of nanostructured materials.
The birth cry of a massive star-forming clump in the distant Universe
Discovery of a giant region of star formation 3 billion years after Big Bang
Thermal corpuscular black holes
Quantum black holes are represented as Bose-Einstein condensates. The qualitatively new result is that back reaction effects eventually stop the quantum process of black hole evaporation.
Transient Astronomical Events as Inspiration Sources of Medieval Art
Going ahead in their long-term project of analysis of the role of transient astronomical events (comets, novae, supernovae, close conjunctions, etc.) as inspirational sources of Medieval art, the authors extend their interest towards the 13th and 14th centuries, epochs of strong changes either in society, art or science.
Measurement of the Gravity-Field Curvature by Atom Interferometry
The second derivative of the gravitational field generated by a test mass of the order of 500kg has been measured for the first time using an atomic interferometer
Towards Low-Voltage and Bendable X-ray Direct Detectors Based on Organic Semiconducting Single Crystals
Organic materials have been so far mainly proposed as detectors for ionizing radiation in the indirect conversion approach, i.e. as scintillators. Here is reported the first thin and bendable X-ray direct detectorsbased on Organic Semiconducting Single Crystals (OSSCs).
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Contatti

Portineria DIFA - Sede principale

Dipartimento di Fisica e Astronomia

viale Berti Pichat, 6/2

40127 - Bologna - Italia

tel: +39 051 20 9 5162

fax: +39 051 252774

Portineria sede di via Irnerio

via Irnerio, 46

40126 - Bologna - Italia

tel: +39 051 2091004

Lunedì-venerdì: ore 8:00-18:00

Direzione

Prof. Nicola Semprini Cesari

tel: +39 051 2095254

Responsabile Amministrativo

Maria Giovanna Piazza

tel: +39 051 2095257