scholarly journals Effects of a neutrino-dark energy coupling on oscillations of high-energy neutrinos

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Niki Klop ◽  
Shin’ichiro Ando
Keyword(s):  
Dark Energy ◽  
Energy Coupling ◽  
High Energy ◽  
High Energy Neutrinos

scholarly journals INTER-DIVISION IX-X WORKING GROUP ENCOURAGING THE INTERNATIONAL DEVELOPMENT OF ANTARCTIC ASTRONOMY

2008 ◽  
Vol 4 (T27A) ◽  
pp. 328-329
Author(s):  
Michael Burton ◽  
Carlos A. Abia ◽  
John E. Carlstrom ◽  
Vincent Coudé du Foresto ◽  
Xiangqun Cui ◽  
...  
Keyword(s):  
Dark Energy ◽  
Equation Of State ◽  
International Development ◽  
Working Group ◽  
High Energy ◽  
South Pole ◽  
The South ◽  
South Pole Telescope ◽  
The Us ◽  
High Energy Neutrinos

Two major astronomical experiments are underway at the US Amundsen-Scott South Pole Station. The first is the South Pole Telescope, a 10m sub-millimetre telescope designed to measure primary and secondary anisotropies in the CMBR, with the aim of placing constraints on the equation of state for dark energy. The second is the IceCube neutrino observatory, which will be a cubic kilometre array designed to image sources of high energy neutrinos.

scholarly journals Most of the cool CGM of star-forming galaxies is not produced by supernova feedback

2020 ◽  
Author(s):  
Andrea Afruni ◽  
Filippo Fraternali ◽  
Gabriele Pezzulli
Keyword(s):  
Galaxy Evolution ◽  
Cosmic Time ◽  
Energy Coupling ◽  
High Energy ◽  
Parametric Models ◽  
Star Forming ◽  
Galaxy Halos ◽  
The Galaxy ◽  
Supernova Explosions ◽  
Cool Gas

Abstract The characterization of the large amount of gas residing in the galaxy halos, the so called circumgalactic medium (CGM), is crucial to understand galaxy evolution across cosmic time. We focus here on the the cool (T ∼ 104 K) phase of this medium around star-forming galaxies in the local universe, whose properties and dynamics are poorly understood. We developed semi-analytical parametric models to describe the cool CGM as an outflow of gas clouds from the central galaxy, as a result of supernova explosions in the disc (galactic wind). The cloud motion is driven by the galaxy gravitational pull and by the interactions with the hot (T ∼ 106 K) coronal gas. Through a bayesian analysis, we compare the predictions of our models with the data of the COS-Halos and COS-GASS surveys, which provide accurate kinematic information of the cool CGM around more than 40 low-redshift star-forming galaxies, probing distances up to the galaxy virial radii. Our findings clearly show that a supernova-driven outflow model is not suitable to describe the dynamics of the cool circumgalactic gas. Indeed, to reproduce the data, we need extreme scenarios, with initial outflow velocities and mass loading factors that would lead to unphysically high energy coupling from the supernovae to the gas and with supernova efficiencies largely exceeding unity. This strongly suggests that, since the outflows cannot reproduce most of the cool gas absorbers, the latter are likely the result of cosmological inflow in the outer galaxy halos, in analogy to what we have previously found for early-type galaxies.

scholarly journals A search for the analogue to Cherenkov radiation by high energy neutrinos at superluminal speeds in ICARUS

2012 ◽  
Vol 711 (3-4) ◽  
pp. 270-275 ◽  
Author(s):  
M. Antonello ◽  
P. Aprili ◽  
B. Baibussinov ◽  
M. Baldo Ceolin ◽  
P. Benetti ◽  
...  
Keyword(s):  
Cherenkov Radiation ◽  
High Energy ◽  
High Energy Neutrinos

scholarly journals Searching for traces of Planck-scale physics with high energy neutrinos

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
Floyd W. Stecker ◽  
Sean T. Scully ◽  
Stefano Liberati ◽  
David Mattingly
Keyword(s):  
Planck Scale ◽  
High Energy ◽  
High Energy Neutrinos ◽  
Planck Scale Physics
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