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Intergalactic magnetism in a gamma-ray beam as a model of Porphyrion
/ Neronov, A. (APC, Paris ; LASTRO Observ.) ; Vazza, F. (U. Bologna, DIFA ; Bologna, Ist. Radioastronomia) ; Brandenburg, A. (Royal Inst. Tech., Stockholm ; Stockholm U., OKC ; Carnegie Mellon U. (main) ; Ilia State U.) ; Caprini, C. (Geneva U., Dept. Theor. Phys. ; CERN)
We estimate the magnetic field in the jets of the recently discovered 7 Mpc long Porphyrion system. [...]
NORDITA-2024-041 ; CERN-TH-2024-187 ; arXiv:2411.01640.
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LISA and $\gamma$-ray telescopes as multi-messenger probes of a first-order cosmological phase transition
/ Roper Pol, A. (Geneva U., Dept. Theor. Phys.) ; Neronov, A. (APC, Paris ; LPHE, Lausanne) ; Caprini, C. (Geneva U., Dept. Theor. Phys. ; CERN) ; Boyer, T. (APC, Paris) ; Semikoz, D. (APC, Paris)
We study two possible cosmological consequences of a first-order phase transition in the temperature range of $1$ GeV to $10^3$ TeV: the generation of a stochastic gravitational wave background (SGWB) within the sensitivity of the Laser Interferometer Space Antenna (LISA) and, simultaneously, primordial magnetic fields that would evolve through the Universe's history and could be compatible with the lower bound from $\gamma$-ray telescopes on intergalactic magnetic fields (IGMF) at present time. [...]
arXiv:2307.10744.
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10 p.
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The second data release from the European Pulsar Timing Array - IV. Implications for massive black holes, dark matter, and the early Universe
/ EPTA Collaboration
The European Pulsar Timing Array (EPTA) and Indian Pulsar Timing Array (InPTA) collaborations have measured a low-frequency common signal in the combination of their second and first data releases respectively, with the correlation properties of a gravitational wave background (GWB). Such signal may have its origin in a number of physical processes including a cosmic population of inspiralling supermassive black hole binaries (SMBHBs); inflation, phase transitions, cosmic strings and tensor mode generation by non-linear evolution of scalar perturbations in the early Universe; oscillations of the Galactic potential in the presence of ultra-light dark matter (ULDM). [...]
arXiv:2306.16227.-
2024-05-01 - 30 p.
- Published in : Astron. Astrophys. 685 (2024) A94
Fulltext: document - PDF; 2306.16227 - PDF;
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Chapter 5 Dark Matter and New Physics Beyond the Standard Model with LHAASO
/ Bi, Xiao-Jun (Beijing, Inst. High Energy Phys.) ; Addazi, Andrea (SCU, Chengdu ; Frascati) ; Belotsky, Konstantin (Moscow Phys. Eng. Inst.) ; Beylin, Vitaly (Southern Federal U.) ; Cirelli, Marco (Paris, LPTHE) ; Esmaili, Arman (Rio de Janeiro, Pont. U. Catol.) ; Fornengo, Nicolao (INFN, Turin) ; Gan, Qing-Yu (SCU, Chengdu) ; Kachekriess, Michael (Norwegian U. Sci. Tech.) ; Khlopov, Maxim (APC, Paris ; Moscow Phys. Eng. Inst. ; Southern Federal U.) et al.
Abstract
In order to reveal the nature of dark matter, it is crucial to detect its non-gravitational interactions with the standard model particles. The traditional dark matter searches focused on the so-called weakly interacting massive particles. [...]
2022 - 13 p.
- Published in : Chin. Phys. C 46 (2022) 030005
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Dark Matter Searches for heavy Dark Matter with LHAASO
/ Addazi, Andrea (Sichuan U. ; INFN, Rome) ; Belotsky, Konstantin (Moscow Phys. Eng. Inst.) ; Beylin, Vitaly (Southern Federal U.) ; Cirelli, Marco (Paris, LPTHE) ; DiSciascio, Giuseppe (INFN, Rome) ; Esmaili, Arman (Rio de Janeiro, Pont. U. Catol.) ; Fornengo, Nicolao (Turin U. ; INFN, Turin) ; Gan, Qingyu (Sichuan U.) ; Kachekriess, Michael (Norwegian U. Sci. Tech.) ; Khlopov, Maxim (APC, Paris ; Moscow Phys. Eng. Inst. ; Southern Federal U.) et al.
We discuss the implications of next future LHAASO data
on searches of Heavy Dark Matter decays..
SISSA, 2021 - 8 p.
- Published in : PoS ICRC2021 (2021) 574
Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.574
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Gravitational wave signal from primordial magnetic fields in the Pulsar Timing Array frequency band
/ Roper Pol, Alberto (APC, Paris) ; Caprini, Chiara (Geneva U., Dept. Theor. Phys. ; CERN) ; Neronov, Andrii (APC, Paris ; LASTRO Observ.) ; Semikoz, Dmitri (APC, Paris ; Moscow, INR ; Moscow Phys. Eng. Inst.)
The NANOGrav, Parkes, European, and International Pulsar Timing Array (PTA) Collaborations have reported evidence for a common-spectrum process that can potentially correspond to a stochastic gravitational wave background (SGWB) in the 1--100 nHz frequency range. We consider the scenario in which this signal is produced by magnetohydrodynamic (MHD) turbulence in the early Universe, induced by a nonhelical primordial magnetic field at the energy scale corresponding to the quark confinement phase transition. [...]
arXiv:2201.05630.-
2022-06-01 - 28 p.
- Published in : Phys. Rev. D 105 (2022) 123502
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Account of the baryonic feedback effect in γ-ray measurements of intergalactic magnetic fields
/ Bondarenko, Kyrylo (CERN ; Ecole Polytechnique, Lausanne) ; Boyarsky, Alexey (Leiden U.) ; Korochkin, Alexander (APC, Paris ; Moscow, INR ; Novosibirsk State U.) ; Neronov, Andrii (APC, Paris ; U. Geneva (main)) ; Semikoz, Dmitri (APC, Paris ; Moscow, INR ; Moscow Phys. Eng. Inst.) ; Sokolenko, Anastasia (OAW, Vienna)
Intergalactic magnetic fields in the voids of the large-scale structure can be probed via measurements of secondary gamma-ray emission from gamma-ray interactions with extragalactic background light. Lower bounds on the magnetic field in the voids were derived from the non-detection of this emission. [...]
arXiv:2106.02690.-
2022-04-01 - 8 p.
- Published in : Astron. Astrophys. 660 (2022) A80
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The POEMMA (Probe of Extreme Multi-Messenger Astrophysics) mission
/ Olinto, A.V. (Chicago U.) ; Adams, J.H. (Alabama U., Huntsville) ; Aloisio, R. (GSSI, Aquila) ; Anchordoqui, L.A. (Lehman Coll.) ; Bergman, D.R. (Utah U.) ; Bertaina, M.E. (Turin U.) ; Bertone, P. (NASA, Marshall) ; Bisconti, F. (Turin U.) ; Bustamante, M. (Bohr Inst. ; DARK Cosmology Ctr.) ; Casolino, M. (Wako, RIKEN) et al.
The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to observe cosmic neutrinos (CNs) above 20 PeV and ultra-high energy cosmic rays (UHECRs) above 20 EeV over the full sky. The POEMMA mission calls for two identical satellites flying in loose formation, each comprised of a 4-meter wide field-of-view (45 degrees) Schmidt photometer. [...]
arXiv:1909.09466.-
2019 - 8 p.
- Published in : PoS: ICRC2019 (2019) , pp. 378
Fulltext: PDF;
In : 36th International Cosmic Ray Conference, Madison, WI, USA, 24 Jul - 1 Aug 2019, pp.378
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A White Paper on keV Sterile Neutrino Dark Matter
/ Drewes, M. (Munich, Tech. U.) ; Lasserre, T. (Munich, Tech. U.) ; Merle, A. (Munich, Max Planck Inst.) ; Mertens, S. (LBL, Berkeley ; KIT, Karlsruhe) ; Adhikari, R. (Jamia Millia Islamia) ; Agostini, M. (Gran Sasso) ; Ky, N.Anh (Hanoi, Inst. Phys. ; Vietnam Natl. U.) ; Araki, T. (Saitama U.) ; Archidiacono, M. (Aarhus U.) ; Bahr, M. (UC, Santa Barbara) et al.
We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved - cosmology, astrophysics, nuclear, and particle physics - in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. [...]
arXiv:1602.04816; FERMILAB-PUB-16-068-T.-
2017-01-13 - 239 p.
- Published in : JCAP 01 (2017) 025
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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