Results 11 to 20 of about 6,586 (50)

The Possibility of Mirror Planet as Planet Nine in the Solar System

open access: yesUniverse, 2022
A series of dynamical anomalies in the orbits of distant trans-Neptunian objects points to a new celestial body (usually named Planet Nine) in the solar system.
Pei Wang   +4 more
doaj   +1 more source

A real triplet-singlet extended Standard Model: dark matter and collider phenomenology

open access: yesJournal of High Energy Physics, 2021
We examine the collider and dark matter phenomenology of the Standard Model extended by a hypercharge-zero SU(2) triplet scalar and gauge singlet scalar.
Nicole F. Bell   +4 more
doaj   +1 more source

Energy-releasing Process for the 2013 May 13 X1.7 Limb Flare: A Continued Study

open access: yesThe Astrophysical Journal, 2023
In this paper, we reanalyze the X1.7 class limb flare that occurred on 2013 May 13 (SOL2013-05-13T01:56 UT), concentrating on the energy-releasing process using microwave observations mainly made by Nobeyama and X-ray observations made by RHESSI.
Jinhua Shen   +5 more
doaj   +1 more source

One-Minute Quasi-Periodic Pulsations during an M-Class Solar Flare

open access: yesUniverse, 2022
We study the Quasi-Periodic Pulsations (QPPs) of an M4.4 class solar flare, which occurred in active region NOAA 11165 on 8 March 2011. With the Fast Fourier Transform (FFT) method, we decompose the flare light curve into fast- and slowly-varying ...
Fanpeng Shi, Dong Li, Zongjun Ning
doaj   +1 more source

Convergent Bayesian global fits of 4D composite Higgs models

open access: yesJournal of High Energy Physics, 2021
Models in which the Higgs boson is a composite pseudo-Nambu-Goldstone boson offer attractive solutions to the Higgs mass naturalness problem. We consider three such models based on the minimal SO(5) → SO(4) symmetry breaking pattern, and perform ...
Ethan Carragher   +6 more
doaj   +1 more source

Constrains on the electric charges of the binary black holes with GWTC-1 events

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Testing black hole’s charged property is a fascinating topic in modified gravity and black hole astrophysics. In the first Gravitational-Wave Transient Catalog (GWTC-1), ten binary black hole merger events have been formally reported, and these ...
Hai-Tang Wang   +5 more
doaj   +1 more source

‘Excess’ of primary cosmic ray electrons

open access: yesPhysics Letters B, 2015
With the accurate cosmic ray (CR) electron and positron spectra (denoted as Φe− and Φe+, respectively) measured by AMS-02 Collaboration, the difference between the electron and positron fluxes (i.e., ΔΦ=Φe−−Φe+), dominated by the propagated primary ...
Xiang Li   +7 more
doaj   +1 more source

Black hole evaporation beyond the Standard Model of particle physics

open access: yesJournal of High Energy Physics, 2023
The observation of an evaporating black hole would provide definitive information on the elementary particles present in nature. In particular, it could discover or exclude particles beyond those present in the standard model of particle physics.
Michael J. Baker, Andrea Thamm
doaj   +1 more source

An r−process macronova/kilonova in GRB 060614: evidence for the merger of a neutron star-black hole binary

open access: yesEPJ Web of Conferences, 2016
After the jet break at t ~ 1.4 days, the optical afterglow emission of the long-short burst GRB 060614 can be divided into two components. One is the power-law decaying forward shock afterglow emission.
Jin Zhi-Ping, Fan Yi-Zhong, Wei Da-Ming
doaj   +1 more source

An Investigation of the Loop Oscillations after a Solar Flare

open access: yesUniverse
We study the loop oscillations after a solar flare on 19 January 2023, in the active region N11E40 3196, which is well observed by the SDO/AIA. After tracing the loop position and fitting, we find that the loop oscillations have a period between 3 and 9 ...
Jun Xu   +5 more
doaj   +1 more source

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