Identifying Galactic sources of high-energy neutrinos

Kheirandish, Ali

doi:10.1007/s10509-020-03816-3

Cited by 15 publications

(8 citation statements)

References 157 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are contributions on the production of cosmic ray (CR) electrons (Alsaberi et al 2019) and their transport (Heesen 2021) as deduced from observations, the generation of X-rays and cosmic γ -rays in interstellar shocks (Sano and Fukui 2021), the mechanism of particle acceleration via diffuse shock acceleration (Urošević et al 2019), the thermal and non-thermal X-ray emission from superbubbles (Kavanagh 2020), and the characteristics of non-equilibrium ionisation plasmas (Breitschwerdt and de Avillez 2021). Next, there are contributions on simulations of cosmic ray propagation (Mertsch 2020), on their detection (Albrecht et al 2022) and what we can learn from that, on interstellar radioactive isotopes (Diehl 2021), and on observations of neutrinos (Kheirandish 2020).…”

Section: Discussionmentioning

confidence: 99%

Editorial: Plasma, particles, and photons: ISM physics revisited

Sasaki

Dettmar

Tjus

2022

Astrophys Space Sci

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Editorial: Plasma, particles, and photons: ISM physics revisited

Sasaki

Dettmar

Tjus

2022

Astrophys Space Sci

View full text Add to dashboard Cite

“…It is predicted that astrophysical neutrinos are produced in the highest energy extragalactic sources such as the super-massive black holes at the centre of active galactic nuclei [46,47], the collapse of massive stars in gamma ray bursts [48,49], or in star burst galaxies [50]. Although some potential points sources have been identified and there is growing evidence for the blazar connection [51,52], the exact nature of astrophysical neutrino sources remain uncertain [53][54][55][56][57][58][59][60][61][62].…”

Section: Neutrino Sourcesmentioning

confidence: 99%

Dark matter neutrino scattering in the galactic centre with IceCube

McMullen¹,

Vincent²,

Argüelles³

et al. 2021

J. Inst.

View full text Add to dashboard Cite

While there is evidence for the existence of dark matter, its properties have yet to be discovered. Simultaneously, the nature of high-energy astrophysical neutrinos detected by IceCube remains unresolved. If dark matter and neutrinos are coupled to each other, they could exhibit a non-zero elastic scattering cross section. Such an interaction between an isotropic extragalactic neutrino flux and dark matter would be concentrated in the Galactic Centre, where the dark matter column density is the greatest. This scattering would attenuate the flux of high-energy neutrinos, which could be observed in the IceCube South Pole Neutrino Observatory. In this thesis, an unbinned likelihood analysis is performed to set sensitivities for the seven year medium energy starting event cascades dataset for a signal considering possible dark matterneutrino interaction scenarios. This signal would be observed as a suppression of the high-energy astrophysical neutrino flux in the direction of the Galactic Centre. It is shown that IceCube can set constraints on possible dark matter-neutrino interactions that are complementary to constraints set by large scale structure surveys and the cosmic microwave background. i I would like to thank my supervisor Aaron Vincent at Queen's and co-supervisor Carlos Argüelles at Harvard for their support and guidance during the course of this thesis. I have been extremely lucky to have great supervisors who patiently answer all my questions and provide invaluable advice. I would also like to thank Austin Schneider for his excellent insight with this analysis. I would like to acknowledge the support of NSERC, the IceCube collaboration, the Frontenac Cluster, and the Canadian Armed Forces in making this thesis possible. I would also like to thank all my family and friends for their support during this degree. I would especially like to thank Eric and Mikayla McMullen for editing this thesis and Simran Nerval for providing feedback for my thesis presentation. I would also like to thank the members of my thesis committee, Joe Bramante and Nahee Park for their comments and discussion during the thesis defence.

show abstract

“…To date diffuse Galactic neutrino emission has not been discovered (Aartsen et al 2017;Albert et al 2018), despite that it has been predicted to exist for decades (Stecker 1979;Kheirandish 2020, for a recent review) and studied in light of the IceCube measurements (Ahlers & Murase 2014;Anchordoqui et al 2014;Neronov et al 2014;Joshi et al 2013;Kachelrieß & Ostapchenko 2014;Spurio 2014;Gaggero et al 2015;Palladino & Vissani 2016;Denton et al 2017). In particular, primarily based on previous sub-PeV gammaray limits posed by the CASA-MIA (Borione et al 1998) and KASCADE experiments, Ahlers & Murase (2014) showed that the Galactic contribution to Ice-Cube neutrinos is subdominant (see also Murase et al 2016), and the GP may give ∼ 3 − 10% of the 10 − 100 TeV all-sky neutrino flux with E 2 ν Φ IC ν ∼ (5 − 10) × 10 −8 GeV cm −2 s −1 sr −1 (Aartsen et al 2015(Aartsen et al , 2020.…”

Section: Introductionmentioning

confidence: 99%

Multi-messenger Implications of Sub-PeV Diffuse Galactic Gamma-Ray Emission

Fang,

Murase

2021

Preprint

View full text Add to dashboard Cite

The diffuse Galactic gamma-ray flux between 0.1 and 1 PeV has recently been measured by the Tibet ASγ Collaboration. The flux and spectrum are consistent with the decay of neutral pions from hadronuclear interactions between Galactic cosmic rays and the interstellar medium (ISM). We derive the flux of the Galactic diffuse neutrino emission from the same interaction process that produces the gamma rays. Our calculation accounts for the effect of gamma-ray attenuation inside the Milky Way and uncertainties due to the spectrum and distribution of cosmic rays, gas density, and infrared emission of the ISM. We find that the contribution from the Galactic plane to the all-sky neutrino flux is 5 − 10% around 100 TeV. The Galactic and extragalactic neutrino intensities are comparable in the Galactic plane region. Our results are consistent with the upper limit reported by the IceCube and ANTARES Collaborations, and predict that next-generation neutrino experiments may observe the Galactic component. We also show that the Tibet ASγ data imply either an additional component in the cosmic-ray nucleon spectrum or contribution from discrete sources, including Pevatrons such as superbubbles and hypernova remnants, and PeV electron accelerators. Future multi-messenger observations between 1 TeV and 1 PeV are crucial to decomposing the origin of sub-PeV gamma rays.

show abstract

Identifying Galactic sources of high-energy neutrinos

Cited by 15 publications

References 157 publications

Editorial: Plasma, particles, and photons: ISM physics revisited

Editorial: Plasma, particles, and photons: ISM physics revisited

Dark matter neutrino scattering in the galactic centre with IceCube

Multi-messenger Implications of Sub-PeV Diffuse Galactic Gamma-Ray Emission

Contact Info

Product

Resources

About