20 citations · 20 across the 3 of their papers we have counts for
3 papers
astro-ph.HE2023
Pulsars as candidates of LHAASO sources J2226+6057, J1908+0621 and J1825-1326: The leptonic origin
Zhe Chang, Yu-Ting Kuang, Xukun Zhang +1
Recently, from 12 -ray Galactic sources, the LHAASO has detected ultrahigh-energy photons up to 1.4PeV. The -ray spectra of the sources J2226+6057, J1908+0621, J1825-1326 and…
astro-ph.CO2022★ 20 cited
Impact of the free-streaming neutrinos to the second order induced gravitational waves
Xukun Zhang, Jing-Zhi Zhou, Zhe Chang
The damping effect of the free-streaming neutrinos on the second order gravitational waves is investigated in detail. We solve the Boltzmann equation and give the anisotropic stres…
astro-ph.CO2022
The cosmological vector modes from a monochromatic primordial power spectrum
Zhe Chang, Xukun Zhang, Jing-Zhi Zhou
The cosmological background of higher order vector modes can be generated by the first order scalar perturbations. We investigate the second order and the third order vector modes…