3 papers
astro-ph.CO2026
Phantom-Divide Crossing in Exponentially Coupled Quintessence and the Role of Neutrino-Mass Freedom
Jincheng Wang, Hongwei Yu, Puxun Wu
We investigate a quintessence dark-energy model with an exponential potential and an exponential coupling to cold dark matter (CDM), hereafter referred to as the CQ-EXP model, usin…
astro-ph.CO2026
Coupled quintessence with a potential from supergravity exhibits sign-changing interaction
Jincheng Wang, Hongwei Yu, Puxun Wu
Quintessence with a potential motivated by supergravity (SUGRA) exhibits several intriguing features. Depending on its initial conditions, it can behave either as dynamical dark en…
astro-ph.SR2025
Exploring the origin of multi-periodic pulsations during a white-light flare
Dong Li, Ding Yuan, Jingye Yan +9
We explored the quasi-periodic pulsations (QPPs) at multiple periods during an X4.0 flare on 2024 May 10 (SOL2024-05-10T06:27), which occurred in the complex active region of NOAA…