2 papers
astro-ph.SR2026
A Compact, Ultra-High Resolution VIPA Spectrograph for Solar Spectroscopic Observations: Astrocomb Characterization and First Light
Yutao Wang, Xiaoming Zhu, Xiaoli Yan +4
We present a compact, high spectral resolution prototype spectrograph based on a Virtually Imaged Phased Array (VIPA), which is designed for solar spectral observations. This fiber…
astro-ph.SR2026
Anomalously Strong Localized First Ionization Potential Effect Associated with a Solar Subflare
Man-Hei Ng, Xiaoping Zhang, P. F. Chen
Plasma composition in the solar corona commonly differs from that of the photosphere, with the enhancement of low--first-ionization-potential (FIP) elements referred to as the FIP…