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This is the fourth of a series of papers in which we derive simultaneous constraints on cosmological parameters and X-ray scaling relations using observations of the growth of massive, X-ray flux-selected galaxy clusters. Here we examine…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Adam Mantz , Steven W. Allen , David Rapetti

Gravitational potentials of the Milky Way and extragalactic structures can influence the propagation of the cosmic neutrino background (CNB). Of particular interest to future CNB observatories, such as PTOLEMY, is the CNB number density on…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-13 Fabian Zimmer , Camila A. Correa , Shin'ichiro Ando

Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) poses an irreducible background in the search for dark matter-nucleus elastic scatterings, which is commonly known as the neutrino floor. As direct dark matter search experiments keep…

We examine the effects of higher-order multipole contributions of rotating neutron star (NS) spacetimes on the propagation of corrugation (c-)modes within a thin accretion disk. We find that the Lense-Thirring precession frequency, which…

High Energy Astrophysical Phenomena · Physics 2016-02-17 David Tsang , George Pappas

The scattering of neutrinos off dark matter can induce time delays in their propagation compared to that of photons, which would wash out correlations between ultra-high-energy neutrinos and electromagnetic observations of their sources -…

High Energy Physics - Phenomenology · Physics 2019-09-11 Seth Koren

Neutrino astrophysics offers new perspectives on the Universe investigation: high energy neutrinos, produced by the most energetic phenomena in our Galaxy and in the Universe, carry complementary (if not exclusive) information about the…

High Energy Astrophysical Phenomena · Physics 2010-02-11 T. Chiarusi , M. Spurio

Recently, the IceCube Neutrino Observatory has reported a deviation from the single power law in the extragalactic diffuse neutrino flux. A neural network-based event selection of contained and uncontained cascade events from IceCube, in…

High Energy Astrophysical Phenomena · Physics 2025-07-31 Zoë Rechav , Emre Yildizci , Lu Lu

Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) and other rare-event physics searches, like dark matter detection, have been especially furthered by increasing sensitivity to low-energy particle interactions. Experiments using…

Instrumentation and Detectors · Physics 2023-10-09 Charles Mark Lewis

We calculate the rate of energy emission by bremsstrahlung of neutrino pairs by electrons moving in the crystalline lattice of ions in dense matter in the crust of a neutron star. Since the periodic potential in the solid gives rise to…

Astrophysics · Physics 2009-10-28 C. J. Pethick , Vesteinn Thorsson

We study neutrino oscillations in a rotating spacetime under the weak gravity limit for the trajectories of neutrinos which are constrained in the equatorial plane. Using the asymptotic form of the Kerr metric, we show that the rotation of…

High Energy Physics - Phenomenology · Physics 2022-11-01 Himanshu Swami

We study high energy neutrino emission from relativistic jets launched by a black hole (BH) spiraling-in inside the envelope of a red supergiant (RSG), and find that such common envelope jets supernovae (CEJSNe) are a potential source for…

High Energy Astrophysical Phenomena · Physics 2021-08-11 Aldana Grichener , Noam Soker

We explore cosmological implications of dark matter as massive particles trapped on a brane embedded in a Randall-Sundrum noncompact higher dimension $AdS_5$ space. It is an unavoidable consequence of this cosmology that massive particles…

Astrophysics · Physics 2009-11-07 K. Ichiki , P. M. Garnavich , T. Kajino , G. J. Mathews , M. Yahiro

The cosmic neutrino background (CNB) consists of low-energy relic neutrinos which decoupled from the cosmological fluid at a redshift z ~ 10^{10}. Despite being the second-most abundant particles in the universe, direct observation remains…

Astrophysics · Physics 2010-10-27 R. J. Michney , R. R. Caldwell

Measurements of the lifetime of neutrons trapped in a bottle have been consistently shorter than the lifetime measured in neutron beam experiments. With trapping potentials as low as 50 neV and neutron detectors located only at the top of…

High Energy Physics - Phenomenology · Physics 2021-02-24 Surjeet Rajendran , Harikrishnan Ramani

The anisotropies of the Cosmic Neutrino Background (C$\nu$B) offer an ideal tool to test non-standard neutrino interactions, since they directly trace the perturbations in the neutrino distribution function. Here, we study how invisible…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-20 Nicola Terzaghi , Guillermo Franco Abellán , Fabian Zimmer , Shin'ichiro Ando

We discuss the effects of neutrino mixing and the neutrino mass hierarchy when considering the capture of the cosmic neutrino background (CNB) on radioactive nuclei. The implications of mixing and hierarchy at future generations of tritium…

Astrophysics · Physics 2008-11-26 Mattias Blennow

We show that sterile neutrinos with masses ~1 eV or larger, as motivated by several short-baseline oscillation anomalies, can be consistent with cosmological constraints if they are charged under a hidden sector force mediated by a light…

High Energy Physics - Phenomenology · Physics 2014-06-16 Basudeb Dasgupta , Joachim Kopp

We investigate the influence of inelastic neutrino microphysics in general-relativistic magnetohydrodynamics simulations of a hypermassive neutron star. In particular, we include species/energy groups coupled neutrino-matter interactions,…

High Energy Astrophysical Phenomena · Physics 2026-04-28 Patrick Chi-Kit Cheong , Francois Foucart , Harry Ho-Yin Ng , Arthur Offermans , Matthew D. Duez , Nishad Muhammed , Pavan Chawhan

Using the Einstein-Cartan-Dirac theory, we study the effect of torsion on neutrino oscillation. We see that torsion cannot induce neutrino oscillation, but affects it whenever oscillation exists for other reasons. We show that the torsion…

General Relativity and Quantum Cosmology · Physics 2009-10-31 M. alimohammadi , A. Shariati

The remnant of neutron star mergers is dense in neutrinos. By employing inputs from one hydrodynamical simulation of a binary neutron star merger remnant with a black hole of $3\ M_\odot$ in the center, dimensionless spin parameter $0.8$…

High Energy Astrophysical Phenomena · Physics 2018-01-03 Meng-Ru Wu , Irene Tamborra , Oliver Just , Hans-Thomas Janka
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