Joeran Stettner
(RWTH Aachen University)
25/09/2019, 14:10
Invited speaker
The IceCube Neutrino Observatory has established the measurement of a flux of high-energy astrophysical neutrinos in several detection channels. Here, we present an update to the analysis of through-going muon-neutrinos from the Northern Hemisphere. It was extended to almost ten years of data which have been re-processed (Pass-2) applying consistent event-selections and reconstructions....
Veronique van Elewyck
25/09/2019, 14:30
Abigail Vieregg
(University of Chicago)
25/09/2019, 15:00
Invited speaker
I will summarize results to date from ANITA, a NASA Long Duration Balloon payload that has had four successful flights in Antarctica. ANITA is sensitive to two kinds of radio emission from particle showers: Askaryan emission from ultra-high energy (UHE) neutrinos interacting in the Antarctic ice, and Geomagnetic emission from UHE particles showering in the atmosphere. The latter channel is...
Dr
Paolo Padovani
(European Southern Observatory)
25/09/2019, 16:00
Invited speaker
IceCube has recently reported the discovery of high-energy neutrinos of astrophysical origin, opening up the PeV sky.
These observations are challenging to interpret on the astronomical side and have triggered a fruitful collaboration across
particle and astro-physics. I will present our work on blazars as possible neutrino sources, discuss briefly the association
of some very high-energy...
Dr
denise boncioli
(DESY)
25/09/2019, 17:00
Dr
Daniele Gaggero
(GRAPPA, University of Amsterdam)
25/09/2019, 17:30
Dr
Sara Buson
(NASA-GSFC)
26/09/2019, 09:00
Invited speaker
Active Galactic Nuclei (AGN) have long been suggested among the candidate sources of cosmic high-energy neutrinos. If hadronic processes operate in the AGN jets, a lot can be learnt by combining neutrino observations with the putative accompanying electromagnetic information. This is motivated by the fact that both radiations may be pictured in the same astrophysical particle-cascades...
Mr
Xavier Rodrigues
(DESY)
26/09/2019, 09:30
Matteo Cerruti
26/09/2019, 09:50
Chad Finley
26/09/2019, 10:10
Shin'ichiro Ando
(University of Amsterdam)
26/09/2019, 11:00
Dr
Maria Petropoulou Petropoulou
(Princeton University)
26/09/2019, 11:30
Invited speaker
Active galactic nuclei (AGN) with relativistic jets powered by accretion onto their central supermassive black hole are the most powerful persistent sources of electromagnetic radiation in the Universe, with bolometric luminosities of $\sim 10^{43}-10^{48}$ erg s$^{-1}$. Jetted AGN are promising cosmic ray accelerators and have abundant radiation fields for the production of high-energy...
Mr
Robert Stein
(DESY Zeuthen)
26/09/2019, 11:50
Invited speaker
Since the detection of high-energy cosmic neutrinos at the IceCube Neutrino Observatory in 2013, there has been an on-going search to find suitable transient or variable source candidates. Despite recent evidence identifying a flaring blazar as a likely neutrino source, the vast majority of the diffuse neutrino flux measured by IceCube remains unexplained. The latest IceCube results testing...
Stefano Morisi
26/09/2019, 12:10
Avishay Gal-Yam
26/09/2019, 14:00
Dr
Shigeo Kimura
(Tohoku University)
26/09/2019, 14:30
Invited speaker
The mergers of neutron stars are expected to produce high-energy neutrinos through particle acceleration inside the relativistic jets. In this talk, I will discuss future prospects for high-energy neutrino detection coincident with gravitational waves. We consider two neutrino production scenarios. One is the late-time engine activity of the short gamma-ray bursts. High-energy neutrinos are...
Mr
Jonas Heinze
(Desy Zeuthen)
26/09/2019, 14:50
Dr
Rafael Alves Batista
(University of São Paulo)
26/09/2019, 15:10
Anna Nelles
(HU Berlin, DESY)
26/09/2019, 16:30
Dr
Kumiko Kotera
(Institut d'Astrophysique de Paris)
26/09/2019, 17:00
Invited speaker
The Giant Radio Array for Neutrino Detection (GRAND) project aims to detect ultra-high-energy cosmic neutrinos, cosmic rays, and gamma rays with a radio antenna array deployed over a total area of 200 000 km2 in mountainous regions, in several favorable locations around the world. The strategy of GRAND is to detect air showers above 10^17 eV that are induced by the interaction of high-energy...
Prof.
Nepomuk Otte
(Georgia Institute of Technology)
26/09/2019, 17:30
Dr
Mauricio Bustamante
(Niels Bohr Institute)
27/09/2019, 09:00
Dr
Philipp Eller
(PennState University)
27/09/2019, 09:30
Andrea Donini
27/09/2019, 09:50
Derek Brindley Fox
27/09/2019, 11:20
Teppei Katori
27/09/2019, 11:40
Dr
Maria Petropoulou Petropoulou
(Princeton University)
Poster
The IceCube collaboration reported a $\sim 3.5\sigma$ excess of $13\pm5$ neutrino events in the direction of the blazar TXS 0506+056 during a $\sim$6 month period in 2014-2015, as well as the multi-messenger flare of neutrinos and gamma rays with $\sim3\sigma$ in 2017. We explore the possibility that both events are explained in the context of the neutral beam model of blazar jets. We...
Damiano Francesco Giuseppe Fiorillo
(University of Naples "Federico II")
Poster
The origin of neutrino flux observed in IceCube is still mainly unknown. Typically two flux components are assumed, namely: atmospheric neutrinos and an unknown astrophysical term. In principle the latter could also contain a top-down contribution coming for example from decaying dark matter. In this case one should also expect prompt and secondary gammas as well. This leads to the possibility...
Mr
Wrijupan Bhattacharyya
(DESY, Platanenallee 6, 15738 Zeuthen)
Poster
Based on the origin of the high-energy (X ray to TeV gamma ray) emission from blazars, the models describing their broadband spectral energy distribution (SED) can be broadly classified into three categories - leptonic, hadronic and mixed lepto-hadronic. One of the key advantages of hadronic and lepto-hadronic SED models is their ability to interpret multi-messenger photon and neutrino...
Dr
Shan Gao
(DESY), Mr
Xavier Rodrigues
(DESY)
Poster
We discuss possible interpretations of the neutrinos observed from the AGN blazar TXS0506+056 in the multi-messenger and multi-wavelength context, including both the 2014-15 and2017 neutrino flares. While the neutrino observed in September 2017 has to describe contemporary data ine.g.the X-ray and VHE gamma-ray ranges, data at the 2014-15 excess are much sparser. We demonstrate...
Dr
Dariusz Gora
(Institute of Nuclear Physics Polish Academy of Sciences, Cracow, Poland)
Poster
MAGIC is a stereoscopic system of two Imaging Atmospheric Cherenkov Telescopes, designed for the measurement of very high energy gamma rays above 30 GeV. MAGIC can also be used as a detector of PeV-EeV tau neutrinos: an optimal region of pointing is accessible through the Earth-skimming technique. This region is located towards the Atlantic Ocean, a few degrees below the horizon.
In this...
Mrs
Salwa Shaglel
(University of Sharjah)
Poster
We propose a new scaling ansatz in the neutrino Dirac mass matrix to explain the low energy neutrino oscillations data, baryon number asymmetry and neutrinoless double beta decay. In this work, a full reconstruction of the neutrino Dirac mass matrix has been realized from the low energy neutrino oscillations data based on type-I seesaw mechanism. A concrete model based on A4 flavor symmetry...
