Dr
Ninetta Saviano
(THEP, Mainz University)
17/03/2016, 09:45
Neutrino Physics
Talk
The detection of neutrinos from the next galactic supernova (SN) represents the next frontier of low-energy neutrino astronomy.
I will present the physical potential of a future supernova neutrino observation to probe the SN explosion mechanism and the fundamental neutrino properties.
In particular, I will discuss the surprising collective behavior of SN neutrino flavor conversions,...
Dr
Andreas Lohs
(Department of Physics, University of Basel)
17/03/2016, 10:05
Neutrino Physics
Talk
Interactions of neutrinos with the hot an dense matter of a proto neutron star play a major role in determining the fate of core collapse supernovae (CCSNe). The influence of neutrinos ranges from (re-)launching the supernova explosion through neutrino heating, to the nucleosynthesis of heavy elements in the neutrino driven wind or neutrino-nucleosynthesis.
This talk will partly review the...
Prof.
Marek Kowalski
(DESY)
17/03/2016, 10:25
Astronomy
Talk
I will present the Zwicky Transient Facility (ZTF) to start operation in 2017. Located at Mount Palomar, ZTF will enable a 3pi search for transient objects to a depth limit of 21 magnitudes. With on-site instruments available for spectroscopic follow-up, ZTF will identify thousands of Supernovae and other optical transients over the course of the survey. I will discuss selected science...
Mr
Barrios-Martí Javier
(IFIC (CSIC-UV))
17/03/2016, 10:50
Neutrino Physics
Talk
ANTARES is the largest undersea neutrino telescope currently on operation. This telescope has been in continuous operation since 2007 with the aim to detect neutrinos from astrophysical sources. A review of the point-like neutrino sources with the ANTARES telescope will be shown. One one hand, the latest results of the all-flavour neutrino point-source analysis with data from 2007 to 2013 will...
Dr
Aldo Serenelli
(Instituto de Ciencias del Espacio (ICE/CSIC - IEEC))
17/03/2016, 11:45
Neutrino Physics
Talk
Standard solar models (SSMs) provide a reference framework across a number of research fields: solar and stellar models, solar neutrinos, particle physics the most conspicuous among them. The accuracy of the physical description of the global properties of the Sun that SSMs provide has been challenged in the last decade by a number of developments in stellar spectroscopic techniques. Over the...
Dr
Stefano Davini
(Gran Sasso Science Institute)
17/03/2016, 12:10
Neutrino Physics
Talk
The detection of neutrinos resulting from the CNO cycle would be the first direct evidence of the nuclear process that is believed to fuel massive stars.
A precise measurement of the CNO solar neutrino fluxes would also help resoliving the solar metallicity problem, as the predicted fluxes strongly depend on the inputs of the solar modelling.
In this presentation I will explain the...
Dr
Saskia Hekker
(Max Planck Institute for Solar System Research)
17/03/2016, 12:35
Astronomy
Talk
Stars are opaque bodies and asteroseismology, a quasi-direct way to peer inside stars through their global oscillations, can be used to study stellar internal structures. These global oscillations have provided essential insights into the internal structures of the Sun (helioseismology) and many other stars. Results based on state of the art (space) telescopes and the potential of...
Mr
Michael Miloradovic
(Universität Zürich)
17/03/2016, 14:30
Neutrino Physics
Talk
The Germanium Detector Array (GERDA) experiment, located at
the Laboratori Nazionali del Gran Sasso (LNGS), is searching for the
neutrinoless double beta decay of Ge-76. The observation of this Beyond
the Standard Model process would prove the existence of a neutrino
Majorana mass component and provide information on the neutrino
mass hierarchy and absolute mass scale. The Majorana nature...
Nicoletta Mauri
(INFN - Bologna)
17/03/2016, 14:50
Neutrino Physics
Talk
The atmospheric muon charge ratio, defined as the number of positive over negative charged muons, is an important observable to shed light on the physics of cosmic ray interactions in atmosphere.
It allows studying the features of high-energy hadronic interactions in the forward region and the composition of primary cosmic rays.
In particular, the muon charge ratio provides sensitivity to...
Dr
Alex Clifton
(Colorado State University)
17/03/2016, 15:10
Neutrino Physics
Talk
Lorentz symmetry violation (LV) arises when the behavior of a particle depends on its direction or boost velocity. This fundamental symmetry violation is expected to occur at the Planck scale (~10^19 GeV). The Standard Model Extension (SME) is a general theoretical framework that includes both General Relativity and the Standard Model while also allowing for the spontaneous breaking of Lorentz...
Mr
Sampsa Vihonen
(Department of Physics, University of Jyvaskyla, Finland)
17/03/2016, 15:30
Neutrino Physics
Talk
Developing neutrino astronomy requires a good understanding of the neutrino oscillations mechanism. The European strategy for neutrino oscillation physics sets a high priority on future long baseline neutrino experiments with the aim to measure the intrinsic parameters that govern the neutrino oscillations. In this talk we take a look at the next generation of long baseline experiments and...
Dr
Philipp Chung-On Ranitzsch
(Institut für Kernphysik, Universität Münster)
17/03/2016, 15:50
Neutrino Physics
Talk
The goal of the KArlsruhe TRItium Neutrino experiment (KATRIN) is to investigate the neutrino mass with a sensitivity of 0.2 eV/c^2 by a high-resolution and high-statistics measurement of the end-point region of the H-3 β-spectrum. For this task it uses an experimental setup made of two main parts, firstly a source and transport section including a windowless gaseous tritium source, a...
Dr
Josefin Larsson
(KTH Royal Institute of Technology)
17/03/2016, 16:40
Astronomy
Talk
Due to its proximity SN 1987A offers a unique opportunity to directly observe the geometry of a stellar explosion as it unfolds. In this talk I will present recent spectral and imaging observations of SN 1987A obtained with the HST and VLT. These observations make it possible to determine the three-dimensional distribution of different elements in the ejecta. The geometry is highly asymmetric,...
Markus Voge
(Universität Bonn)
17/03/2016, 17:10
Astronomy
Talk
The IceCube neutrino observatory pursues a follow-up program, which selects interesting neutrino events in real-time and issues alerts for electromagnetic follow-up observations. In March 2012, the most significant neutrino alert during the first three years of operation was issued by IceCube. In the follow-up observations performed by the Palomar Transient Factory (PTF), a Type IIn supernova...
Dr
Daniela Paoletti
(INAF/IASF -Bologna -INFN Bologna)
17/03/2016, 17:30
Astronomy
Talk
The Planck satellite is an ESA mission that has observed the full sky at nine frequencies between 30 GHz and 1 THz from 2009 to 2013. It represents the third generation, after COBE and WMAP, of satellites dedicated to the observation of the Cosmic Microwave Background radiation (CMB).
The CMB anisotropies represent the picture of primordial perturbations that originated the present...
Dr
Ievgen Vovk
(Max-Planck-Institut fuer Physik)
17/03/2016, 17:50
Astronomy
Talk
The high-energy emission of Active Galactic Nuclei (AGNs) is believed to be produced in the jets, powered by their central supermassive black holes. At the same time the location of the emission region within the jet is presently uncertain - mainly due to its extremely small angular size, far beyond the capabilities of the existing gamma-ray instruments. However, in the rare case of the...
Dr
Valentina Lozza
(IKTP - TU Dresden)
18/03/2016, 10:00
Neutrino Physics
Talk
SNO+ is a large liquid scintillator based experiment that re-uses the Sudbury Neutrino Observatory detector. The detector, located 2 km underground in a mine near Sudbury, Canada, consists of a 12 m diameter acrylic vessel which will be filled with 780 tonnes of liquid scintillator.
The main physics goal of SNO+ is to search for the neutrinoless double-beta (0n2b) decay of 130Te. During the...
Mr
Simone Marcocci
(Gran Sasso Science Institute (INFN))
18/03/2016, 10:20
Neutrino Physics
Talk
Solar neutrinos have been pivotal to the discovery of neutrino flavor oscillations and are a unique tool to probe the reactions that keep the Sun shine. The Borexino experiment located in the Gran Sasso National Laboratory, is an organic liquid scintillator detector conceived for the real time spectroscopy of low energy solar neutrinos. Thanks to the unprecedented background levels, Borexino...
Dr
Alessio Caminata
(INFN Genova)
18/03/2016, 10:40
Neutrino Physics
Talk
The talk describes the SOX project which aims to test the existence of light sterile neutrinos. A solid signal would mean the discovery of the first particles beyond the Standard Electroweak Model and would have profound implications in our understanding of the Universe and of fundamental particle physics. In case of a negative result, it is able to close a long standing debate about the...
Dr
Davide Franco
(APC)
18/03/2016, 11:00
Neutrino Physics
Talk
Two-phase liquid argon time projection chambers (LAr TPCs) are prime candidates for the ambitious program to explore the nature of dark matter. The large target, high scintillation light yield and good spatial resolution in all three cartesian directions concurrently allows also a high precision measurement of solar neutrino fluxes via elastic scattering. We studied the cosmogenic and...
Mr
Sebastian Lorenz
(Johannes Gutenberg-Universität Mainz)
18/03/2016, 11:55
Neutrino Physics
Talk
The Jiangmen Underground Neutrino Observatory (JUNO) is an international project centered on a 20 kt liquid scintillator neutrino detector currently under construction about 730 m below the surface at a location close to Kaiping, China. Its expected start of data taking is around 2020. The experiment primarily aims for a determination of the neutrino mass ordering with more than three sigma...
Dr
Francesca Cavanna
(Istituto Nazionale di Fisica Nucleare, Sezione di Genova)
18/03/2016, 12:15
Astronomy
Talk
Cross sections of nuclear reactions relevant for astrophysics are crucial ingredients to understand the energy generation inside stars and the element nucleosynthesis. At astrophysical energies, nuclear cross sections are often too small to be measured in laboratories on the Earth’s surface where the signal would be overwhelmed by the cosmic-ray induced background.
LUNA (Laboratory for...
Dr
Martin Tluczykont
(University of Hamburg)
18/03/2016, 12:35
Astronomy
Talk
Recent evidence for neutrinos in the PeV energy range from IceCube further motivates the search for the most energetic Galactic accelerators. Gamma-ray astronomy is a sound strategy to reach this goal, providing the energy range beyond 10 TeV can be covered at a sufficient sensitivity level. The energy spectra of most known gamma-ray emitters only reach up to few 10s of TeV. The HEGRA IACT...
Ms
Maike Kunnas
(Universität Hamburg)
18/03/2016, 14:30
Astronomy
Talk
The Tunka Advanced International Gamma-ray and Cosmic ray Astrophysics (TAIGA) project aims at observation of cosmic rays and gamma rays at and beyond 100 TeV via observation of the extensive air showers (EAS) caused in the atmosphere. The low fluxes in this energy regime make huge effective areas necessary for sensitive measurements.
It is possible to instrument very large detector areas...
Irene Tamborra
(Niels Bohr Institute)
18/03/2016, 14:50
Neutrino Physics
Talk
Gamma-ray bursts have often been considered as the natural evolution of core-collapse supernovae. I will discuss the possibility that successful and choked gamma-ray bursts belong to the same class of astrophysical transients and show how the flux of high-energy neutrinos emitted from these sources could provide indirect constraints on the rate of choked bursts.
Dr
Cornelia Mueller
(Radboud University)
18/03/2016, 15:10
Astronomy
Talk
The detection of the extraterrestrial neutrino signal at PeV energies
by IceCube prompted the question of astrophysical origin. We study the
broadband spectral energy distribution of gamma-ray loud blazars in positional agreement with the PeV neutrinos "Ernie, Bert and Big Bird", using broadband data collected in the framework of the multiwavelength
monitoring program TANAMI. Assuming a...
Dr
Dorit Glawion
(University of Würzburg)
18/03/2016, 15:30
Astronomy
Talk
MAGIC (Major Atmospheric Gamma Imaging Cherenkov) is a system of two imaging atmospheric Cherenkov telescopes located at the Canary island of La Palma. Since more than 11 years, the telescopes are performing scientific observations of gamma rays with energies between 35 GeV and tens of TeV.
In this talk I will present the highlights of the observations performed with the MAGIC telescopes...
Ignacio Izaguirre
(Max-Planck-Institut für Physik (Werner-Heisenberg-Institut))
18/03/2016, 15:50
Neutrino Physics
Talk
In this talk, I will give a brief introduction to cosmic rays and their connection to high energy cosmic neutrinos. In this context I will introduce the IceCube experiment and its measured diffuse astrophysical flux of TeV-PeV neutrinos. The most plausible stellar sources for this diffuse flux are unique high energy cosmic ray accelerators like hypernova remnants (HNRs) and remnants from gamma...
Dr
Matthias Fuessling
(DESY)
18/03/2016, 16:10
Astronomy
Talk
Since the commissioning of the fifth, large telescope in December 2012, H.E.S.S. II is the only array of Imaging Atmospheric Cherenkov Telescopes operating telescope of different sizes. Recent years have seen a tremendous effort in the design, implementation and optimisation of analysis techniques as well as improvements to the entire data acquisition scheme to allow for a very fast response...
Prof.
Livia Ludhova
(IKP-2 FZJ, RWTH Aachen and JARA - FAME, Germany)
18/03/2016, 17:00
Neutrino Physics
Talk
Neutrino geoscience is a newly born interdisciplinary field having as its main aim determination of the Earth’s radiogenic heat through measurement of antineutrinos released in decays of long-lived radioactive elements inside the Earth, so called geoneutrinos. In fact, such measurements are a unique direct way how to pin-down this key element for many geophysical and geochemical Earth’s...
Dr
Juan Pablo Yanez Garza
(DESY Zeuthen)
18/03/2016, 17:25
Neutrino Physics
Talk
Very large volume neutrino telescopes observe atmospheric neutrinos over
a wide energy range (GeV to TeV), after they travel distances as large
as the Earth's diameter. DeepCore, the low energy extension of IceCube,
has started making meaningful measurements of the atmospheric
oscillation parameters. PINGU, a proposed extension to lower DeepCore's
detection threshold, aims to use the...
Dr
Clancy James
(ECAP, University of Erlangen-Nürnberg)
18/03/2016, 17:45
Neutrino Physics
Talk
The radio-detection of high-energy particles has recently undergone a revival, with current experiments using the Earth's atmosphere, Antarctic ice, and even the lunar regolith as a detection medium for cosmic rays and neutrinos. In this talk, I will briefly review the range of experiments using the radio technique to search for and study these particles, and outline the phenomenology of the...
Dr
Bruno Leibundgut
(European Southern Observatory)
18/03/2016, 18:10
Astronomy
Talk
SN 1987A has provided us with the opportunity to learn more about core collapse supernovae than with any other event. The evolution of this object has been followed in great detail with all available observing facilities and delivered an unprecedented record of the explosion. There are many unique observations of this object: the neutrino burst indicating the collapse to a neutron star, the...
