Zobrazeno 41 - 50
of 360
pro vyhledávání: '"Olinto, A. V."'
Autor:
Fang, Ke, Olinto, Angela V.
Publikováno v:
The Astrophysical Journal, 828 (2016) 37
High-energy cosmic rays can be accelerated in clusters of galaxies, by mega-parsec scale shocks induced by accretion of gas during the formation of large-scale structure, or by powerful sources harbored in clusters. Once accelerated, the highest ener
Externí odkaz:
http://arxiv.org/abs/1607.00380
Publikováno v:
Phys. Rev. D 95, 023004 (2017)
Neutrinos with energies in the PeV to EeV range produce upgoing extensive air showers when they interact underground close enough to the surface of the Earth. We study the possibility for detection of such showers with a system of very wide field-of-
Externí odkaz:
http://arxiv.org/abs/1606.03629
Publikováno v:
JCAP 04 (2016) 010
Relativistic winds of fast-spinning pulsars have been proposed as a potential site for cosmic-ray acceleration from very high energies (VHE) to ultrahigh energies (UHE). We re-examine conditions for high-energy neutrino production, considering the in
Externí odkaz:
http://arxiv.org/abs/1511.08518
Publikováno v:
JCAP 1508 (2015) 08, 024
The announcement by BICEP2 of the detection of B-mode polarization consistent with primordial gravitational waves with a tensor-to-scalar ratio, $r=0.2^{+0.07}_{-0.05}$, challenged predictions from most inflationary models of a lower value for $r$. M
Externí odkaz:
http://arxiv.org/abs/1504.01319
Publikováno v:
The Astrophysical Journal, 794 (2014) no.2, 126
The Telescope Array (TA) has observed a statistically significant excess in cosmic-rays with energies above 57 EeV in a region of approximately 1150 square degrees centered on coordinates (R.A. = 146.7, Dec. = 43.2). We note that the location of this
Externí odkaz:
http://arxiv.org/abs/1404.6237
Autor:
Anchordoqui, Luis A., Goldberg, Haim, Olinto, Angela V., Paul, Thomas C., Vlcek, Brian J., Weiler, Thomas J.
We investigate the neutrino - cosmic ray connection for sources in the Galaxy in terms of two observables: the shape of the energy spectrum and the distribution of arrival directions. We also study the associated gamma ray emission from these sources
Externí odkaz:
http://arxiv.org/abs/1403.6628
Publikováno v:
Phys. Rev. D 90, 103005 (2014); Phys. Rev. D 92, 129901 (2015)
Fast-spinning newborn pulsars are intriguing candidate sources of ultrahigh energy cosmic rays (UHECRs). The acceleration of particles with a given composition in a fraction of the extragalactic pulsar population can give a consistent explanation for
Externí odkaz:
http://arxiv.org/abs/1311.2044
Autor:
Anchordoqui, Luis A., Farrar, Glennys R., Krizmanic, John F., Matthews, Jim, Mitchell, John W., Nitz, Dave, Olinto, Angela V., Paul, Thomas C., Sokolsky, Pierre, Thomson, Gordon B., Weiler, Thomas J.
We summarize the remarkable recent progress in ultra-high energy cosmic ray physics and astronomy enabled by the current generation of cosmic ray observatories. We discuss the primary objectives for future measurements and describe the plans for near
Externí odkaz:
http://arxiv.org/abs/1307.5312
Autor:
Anchordoqui, Luis A., Goldberg, Haim, Lynch, Morgan H., Olinto, Angela V., Paul, Thomas C., Weiler, Thomas J.
Very recently the IceCube Collaboration has reported an observation of 28 neutrino candidates with energies between 50 TeV and 2 PeV, constituting a 4.1$\sigma$ excess compared to the atmospheric background. In this article we investigate the compati
Externí odkaz:
http://arxiv.org/abs/1306.5021
The flux of ultra-high energy (UHE) cosmic rays (CRs) depends on the cosmic distribution of their sources. Data from CR observations are yet inconclusive about their exact location or distribution, but provide a measure for the average local density
Externí odkaz:
http://arxiv.org/abs/1306.0910