NEUTRINO ASTROPHYSICS AND GALACTIC COSMIC RAY ANISOTROPY IN IceCube

Desiati, P.

doi:10.1142/9789814340861_0036

Cited by 3 publications

(4 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The correlation with the effective temperature of the South Pole atmosphere is also shown. The effective temperature is the convolution of the atmospheric temperature profile with the inclusive muon production spectrum (Desiati et al 2011). Note that the y axes are shown with offsets for better visibility.…”

Section: Detectormentioning

confidence: 99%

SEARCH FOR TIME-INDEPENDENT NEUTRINO EMISSION FROM ASTROPHYSICAL SOURCES WITH 3 yr OF IceCube DATA

Aartsen

Abbasi

Abdou

et al. 2013

ApJ

Self Cite

105

129

View full text Add to dashboard Cite

We present the results of a search for neutrino point sources using the IceCube data collected between 2008 April and 2011 May with three partially completed configurations of the detector: the 40-, 59-, and 79-string configurations. The live-time of this data set is 1040 days. An unbinned maximum likelihood ratio test was used to search for an excess of neutrinos above the atmospheric background at any given direction in the sky. By adding two more years of data with improved event selection and reconstruction techniques, the sensitivity was improved by a factor of 3.5 or more with respect to the previously published results obtained with the 40-string configuration of IceCube. We performed an all-sky survey and a dedicated search using a catalog of a priori selected objects observed by other telescopes. In both searches, the data are compatible with the background-only hypothesis. In the absence of evidence for a signal, we set upper limits on the flux of muon neutrinos. For an E −2 neutrino spectrum, the observed limits are (0.9-5) × 10 −12 TeV −1 cm −2 s −1 for energies between 1 TeV and 1 PeV in the northern sky and (0.9-23.2) × 10 −12 TeV −1 cm −2 s −1 for energies between 10 2 TeV and 10 2 PeV in the southern sky. We also report upper limits for neutrino emission from groups of sources that were selected according to theoretical models or observational parameters and analyzed with a stacking approach. Some of the limits presented already reach the level necessary to quantitatively test current models of neutrino emission.

show abstract

Section: Detectormentioning

confidence: 99%

SEARCH FOR TIME-INDEPENDENT NEUTRINO EMISSION FROM ASTROPHYSICAL SOURCES WITH 3 yr OF IceCube DATA

Aartsen

Abbasi

Abdou

et al. 2013

ApJ

Self Cite

105

129

View full text Add to dashboard Cite

show abstract

“…The dashed curve is the prediction using the pion-only model Ambrosio et al (1997c). The points correspond (from top to bottom): Ambrosio et al (1997c), Bouchta (1999), Grashorn et al (2010), Selvi (2009), Bellini (2012, Desiati (2011), Andreyev et al (1991, Cutler et al (1981), Sherman (1954), Barrett et al (1954). temperature T eff , defined by the weighted average of temperatures from the surface to the top of the atmosphere, is useful to describe the situation. T eff approximates the atmosphere as an isothermal body, weighting each pressure layer according to its relevance to muon production in atmosphere.…”

Section: Pressure and Temperature Effectmentioning

confidence: 99%

“…The dashed curve is the prediction using the pion-only model (Ambrosio et al, 1997c). The points correspond (from top to bottom): Ambrosio et al (1997c), Bouchta (1999), Adamson et al (2010), Selvi (2009), Bellini (2012, Desiati (2011), Andreyev et al (1991, Cutler et al (1981), Sherman (1954), Barrett et al (1954).…”

Section: Muons and Neutrinosmentioning

confidence: 99%

Atmospheric muons: experimental aspects

Cecchini

Spurio

2012

Geosci. Instrum. Method. Data Syst.

View full text Add to dashboard Cite

Abstract. We present a review of atmospheric muon flux and energy spectrum measurements over almost six decades of muon momentum. Sea level and underground/water/ice experiments are considered. Possible sources of systematic errors in the measurements are examined. The characteristics of underground/water muons (muons in bundle, lateral distribution, energy spectrum) are discussed. The connection between the atmospheric muon and neutrino measurements are also reported.

show abstract

“…They include magnetic nozzle focusing, 52 propagation effects from local SNR, 53 acceleration in the heliotail, 54,55 and heliosheath propagation effects. 56 Although being plausible, in principle, those explanations impose significant constraints on the relevant parameters and processes.…”

Section: Small-scale Cr Anisotropymentioning

confidence: 99%

Cosmic ray confinement and transport models for probing their putative sources

Malkov

2015

Physics of Plasmas

View full text Add to dashboard Cite

Recent efforts in cosmic ray (CR) confinement and transport theory are discussed. Three problems are addressed as being crucial for understanding the present day observations and their possible telltale signs of the CR origin. The first problem concerns CR behavior right after their release from a source, such as a supernova remnant. At this phase, the CRs are confined near the source by self-emitted Alfven waves. The second is the problem of diffusive propagation of CRs through the turbulent interstellar medium. This is a seemingly straightforward and long-resolved problem, but it remains controversial and reveals paradoxes. A resolution based on the Chapman-Enskog asymptotic CR transport analysis, that also includes magnetic focusing, is suggested. The third problem is about a puzzling sharp ($10 ) anisotropies in the CR arrival directions that might bear on important clues of their transport between the source and observer. The overarching goal is to improve our understanding of all aspects of the CR's source escape and ensuing propagation through the galaxy to the level at which their sources can be identified observationally. V C 2015 AIP Publishing LLC. [http://dx.

show abstract

NEUTRINO ASTROPHYSICS AND GALACTIC COSMIC RAY ANISOTROPY IN IceCube

Cited by 3 publications

References 59 publications

SEARCH FOR TIME-INDEPENDENT NEUTRINO EMISSION FROM ASTROPHYSICAL SOURCES WITH 3 yr OF IceCube DATA

SEARCH FOR TIME-INDEPENDENT NEUTRINO EMISSION FROM ASTROPHYSICAL SOURCES WITH 3 yr OF IceCube DATA

Atmospheric muons: experimental aspects

Cosmic ray confinement and transport models for probing their putative sources

Contact Info

Product

Resources

About