182 citations · 971 across the 17 of their papers we have counts for
17 papers
Dark matter searches in dwarf spheroidal galaxies with the Cherenkov Telescope Array
Francesco Gabriele Saturni, Michele Doro, Aldo Morselli +1
Dark matter (DM) is one of the major components in the Universe. However, at present its existence is still only inferred through indirect astronomical observations. DM particles c…
Measuring Unruh radiation from accelerated electrons
Gianluca Gregori, Giacomo Marocco, Subir Sarkar +2
Detecting thermal Unruh radiation from accelerated electrons has presented a formidable challenge due not only to technical difficulties but also for lack of conceptual clarity abo…
Transport of high-energy charged particles through spatially-intermittent turbulent magnetic fields
L. E. Chen, A. F. A. Bott, P. Tzeferacos +22
Identifying the sources of the highest energy cosmic rays requires understanding how they are deflected by the stochastic, spatially intermittent intergalactic magnetic field. Here…
Marginal evidence for cosmic acceleration from Type Ia supernovae
Jeppe Trøst Nielsen, Alberto Guffanti, Subir Sarkar
The "standard" model of cosmology is founded on the basis that the expansion rate of the universe is accelerating at present --- as was inferred originally from the Hubble diagram…
Letter of Intent: The Precision IceCube Next Generation Upgrade (PINGU)
PINGU Collaboration
The Precision IceCube Next Generation Upgrade (PINGU) is a proposed low-energy in-fill array of the IceCube Neutrino Observatory. Leveraging technology proven with IceCube, PINGU w…
Probing the origin of cosmic-rays with extremely high energy neutrinos using the IceCube Observatory
IceCube Collaboration, M. G. Aartsen, R. Abbasi +275
We have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino induced particle shower events with ener…
A Search for UHE Tau Neutrinos with IceCube
IceCube Collaboration, R. Abbasi, Y. Abdou +252
The first dedicated search for ultra-high energy (UHE) tau neutrinos of astrophysical origin was performed using the IceCube detector in its 22-string configuration with an instrum…
The IceCube Neutrino Observatory II: All Sky Searches: Atmospheric, Diffuse and EHE
The IceCube Collaboration
All sky neutrino searches: Atmospheric neutrinos; Astrophysical neutrinos; Cosmegenic neutrinos; Submitted papers to the 32nd International Cosmic Ray Conference, Beijing 2011.
Dark matter profiles and annihilation in dwarf spheroidal galaxies: prospectives for present and future gamma-ray observatories - I. The classical dSphs
A. Charbonnier, C. Combet, M. Daniel +8
Due to their large dynamical mass-to-light ratios, dwarf spheroidal galaxies (dSphs) are promising targets for the indirect detection of dark matter (DM) in gamma-rays. We examine…
Constraints on high-energy neutrino emission from SN 2008D
IceCube Collaboration, R. Abbasi, Y. Abdou +259
SN 2008D, a core collapse supernova at a distance of 27 Mpc, was serendipitously discovered by the Swift satellite through an associated X-ray flash. Core collapse supernovae have…
Search for high-energy muon neutrinos from the "naked-eye" GRB 080319B with the IceCube neutrino telescope
IceCube Collaboration, R. Abbasi
We report on a search with the IceCube detector for high-energy muon neutrinos from GRB 080319B, one of the brightest gamma-ray bursts (GRBs) ever observed. The fireball model pred…
The high energy cosmic ray spectrum from relic particle decay
Subir Sarkar, Ramon Toldra
It has been speculated that the recently detected ultra-high energy cosmic rays may originate from the decays of relic particles with mass of order GeV clustered in the h…
No Crisis for Big Bang Nucleosynthesis
Peter J. Kernan, Subir Sarkar
Contrary to a recent claim, the inferred primordial abundances of the light elements are quite consistent with the expectations from standard big bang nucleosynthesis when attentio…
On the Cosmological Domain Wall Problem for the Minimally Extended Supersymmetric Standard Model
S. A. Abel, S. Sarkar, P. L. White
We study the cosmology of the Supersymmetric Standard Model augmented by a gauge singlet to solve the -problem and describe the evolution of the domain walls which are created d…
Cosmological Constraints on Perturbative Supersymmetry Breaking
S. A. Abel, S. Sarkar
We discuss the cosmology of string models with perturbative supersymmetry breaking at a scale of (TeV). Such models exhibit Kaluza-Klein like spectra and contain unstable…
Neutralino Dark Matter in a Class of Unified Theories
S. A. Abel, S. Sarkar, I. B. Whittingham
The cosmological significance of the neutralino sector is studied for a class of models in which electroweak symmetry breaking is seeded by a gauge singlet. Extensive use is made o…
Cosmic Neutrinos from Unstable Relic Particles
P. Gondolo, G. Gelmini, S. Sarkar
We derive constraints on the relic abundance of a generic particle of mass TeV which decays into neutrinos at cosmological epochs, using data from the Fréjus and I…