Search Results - "Takhistov, Volodymyr"
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Positrons from primordial black hole microquasars and gamma-ray bursts
Published in Physics letters. B (01-02-2019)“…We propose several novel scenarios how capture of small sublunar-mass primordial black holes (PBHs) by compact stars, white dwarfs or neutron stars, can lead…”
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Exploring evaporating primordial black holes with gravitational waves
Published in Physics letters. B (10-12-2021)“…Primordial black holes (PBHs) from the early Universe have been connected with the nature of dark matter and can significantly affect cosmological history. We…”
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Transmuted gravity wave signals from primordial black holes
Published in Physics letters. B (10-07-2018)“…Primordial black holes (PBHs) interacting with stars in binaries lead to a new class of gravity wave signatures that we explore. A small 10−16–10−7M⊙ PBH…”
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Gas heating from spinning and non-spinning evaporating primordial black holes
Published in Physics letters. B (01-09-2021)“…Primordial black holes (PBHs) from the early Universe constitute a viable dark matter (DM) candidate and can span many orders of magnitude in mass. Light PBHs…”
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Scalar direct detection: In-medium effects
Published in Physics letters. B (10-10-2020)“…A simple extension of the Standard Model consists of a scalar field that can potentially constitute the dark matter (DM). Significant attention has been…”
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Testing stochastic gravitational wave signals from primordial black holes with optical telescopes
Published in Physics letters. B (10-03-2021)“…Primordial black holes (PBHs) can constitute the predominant fraction of dark matter (DM) if PBHs reside in the currently unconstrained “sublunar” mass range…”
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Revealing dark matter dress of primordial black holes by cosmological lensing
Published in Physics letters. B (10-12-2023)“…Stellar-mass primordial black holes (PBHs) from the early Universe can directly contribute to the gravitational wave (GW) events observed by LIGO, but can only…”
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Visible sterile neutrinos as the earliest relic probes of cosmology
Published in Physics letters. B (10-01-2020)“…A laboratory detection of a sterile neutrino could provide the first indication of the evolution of the Universe before Big-Bang Nucleosynthesis (BBN), an…”
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Universal gravitational waves from interacting and clustered solitons
Published in Physics letters. B (01-01-2024)“…Causal soliton formation (e.g. oscillons, Q-balls) in the primordial Universe is expected to give rise to a universal gravitational wave (GW) background, at…”
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Probing relativistic axions from transient astrophysical sources
Published in Physics letters. B (10-02-2022)“…Emission of relativistic axions from transient sources, such as axion star explosions, can lead to observable signatures. We show that axion bursts from…”
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Halo-independent dark matter electron scattering analysis with in-medium effects
Published in Physics letters. B (10-06-2023)“…Dark matter (DM)-electron scattering is a prime target of a number of direct DM detection experiments and constitutes a promising avenue for exploring…”
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Effects of finite material size on axion-magnon conversion
Published in The journal of high energy physics (30-01-2024)“…A bstract Magnetic materials are particularly favorable targets for detecting axions interacting with electrons because the collective excitation of electron…”
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Primordial black hole neutrinogenesis of sterile neutrino dark matter
Published in Physics letters. B (01-05-2024)“…Sterile neutrinos are well-motivated and actively searched for new particles that would mix with the active neutrinos. We study their phenomenology when they…”
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14
New Light on Dark Extended Lenses with the Roman Space Telescope
Published in Astrophysical journal. Letters (01-04-2024)“…Abstract The Roman Space Telescope’s Galactic Bulge Time Domain Survey will constitute the most sensitive microlensing survey of the Galactic bulge to date,…”
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Fundamental forces and scalar field dynamics in the early universe
Published in Physics letters. B (10-05-2020)“…Scalar weak gravity conjectures (SWGCs) attempt to pinpoint the ranges of couplings consistent with a fundamental theory of all interactions. We identify a…”
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Gravitational wave probe of Planck-scale physics after inflation
Published in Physics letters. B (01-09-2024)“…Particle decays are always accompanied by the emission of graviton quanta of gravity through bremsstrahlung processes. However, the corresponding branching…”
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Contribution of Secondary Neutrinos from Line-of-sight Cosmic-Ray Interactions to the IceCube Diffuse Astrophysical Flux
Published in The Astrophysical journal (01-06-2021)“…Abstract In 10 years of observations, the IceCube neutrino observatory has revealed a neutrino sky in tension with previous expectations for neutrino…”
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Establishing the Nonprimordial Origin of Black Hole–Neutron Star Mergers
Published in The Astrophysical journal (01-05-2022)“…Abstract Primordial black holes (PBHs) from the early universe constitute attractive dark matter candidates. First detections of black hole–neutron star…”
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Dark cosmic rays
Published in Physics letters. B (10-05-2017)“…If dark matter particles have an electric charge, as in models of millicharged dark matter, such particles should be accelerated in the same astrophysical…”
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Hadrophilic light dark matter from the atmosphere
Published in Physics letters. B (10-10-2022)“…Light sub-GeV dark matter (DM) constitutes an underexplored target, beyond the optimized sensitivity of typical direct DM detection experiments. We…”
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