53 citations · 238 across the 9 of their papers we have counts for
12 papers
Detectability of accretion-induced bosenovae in the Milky Way
Dennis Maseizik, Joshua Eby, Hyeonseok Seong +1
We estimate collapse rates of axion stars in our galaxy based on the axion minicluster mass function of the Milky Way dark matter halo. We consider axion-like particles with differ…
Radio Lines from accreting Axion Stars
Dennis Maseizik, Sagnik Mondal, Hyeonseok Seong +1
Axion-like particles, which we call axions, can compose the missing dark matter and may form substructures such as miniclusters and axion stars. We obtain the mass distributions of…
Inching toward the QCD Axions with Axion Magnetic Resonance in Helioscopes
Hyeonseok Seong, Chen Sun, Seokhoon Yun
Utilizing a helical magnet profile to enhance axion-photon conversion showed great promise in laboratory searches for high axion masses. We extend the mechanism, known as the axion…
Axion emission from strange matter in core-collapse SNe
Mael Cavan-Piton, Diego Guadagnoli, Micaela Oertel +2
The duration of the neutrino burst from the supernova event SN 1987A is known to be sensitive to exotic sources of cooling, such as axions radiated from the dense and hot hadronic…
Axion Magnetic Resonance: A Novel Enhancement in Axion-Photon Conversion
Hyeonseok Seong, Chen Sun, Seokhoon Yun
We identify a new resonance, axion magnetic resonance (AMR), that can greatly enhance the conversion rate between axions and photons. A series of axion search experiments rely on c…
Axion dark matter with thermal friction
Kiwoon Choi, Sang Hui Im, Hee Jung Kim +1
Cosmological evolution of axion field in the early universe might be significantly affected by a thermal friction induced by the axion coupling to thermalized hidden sector. We exa…
Axion emission from supernova with axion-pion-nucleon contact interaction
Kiwoon Choi, Hee Jung Kim, Hyeonseok Seong +1
We examine the axion emission from supernovae with a complete set of relevant axion couplings including the axion-pion-nucleon contact interaction which was ignored in the previous…
Precision axion physics with running axion couplings
Kiwoon Choi, Sang Hui Im, Hee Jung Kim +1
We study the renormalization group running of axion couplings while taking into account that the Standard Model can be extended to its supersymmetric extension at a certain energy…
Axion-photon-dark photon oscillation and its implication for 21 cm observation
Kiwoon Choi, Hyeonseok Seong, Seokhoon Yun
We examine the resonant conversion of axion-like particle (ALP) or dark photon to the electromagnetic photon in the early Universe, which takes place due to the ALP-photon-dark pho…
Gravitational waves from first-order phase transitions: Ultra-supercooled transitions and the fate of relativistic shocks
Ryusuke Jinno, Hyeonseok Seong, Masahiro Takimoto +1
We study the gravitational wave (GW) production in extremely strong first order phase transitions where the latent heat density dominates the plasma energy density, . I…
Gamma-ray spectral modulations induced by photon-ALP-dark photon oscillations
Kiwoon Choi, Sangjun Lee, Hyeonseok Seong +1
Recently it has been noticed that the Fermi-LAT data of gamma-rays from some galactic pulsars and supernova remnants reveal spectral modulations that might be explained by the conv…
Gravitational waves from first-order phase transitions: Towards model separation by bubble nucleation rate
Ryusuke Jinno, Sangjun Lee, Hyeonseok Seong +1
We study gravitational-wave production from bubble collisions in a cosmic first-order phase transition, focusing on the possibility of model separation by the bubble nucleation rat…