3 papers
astro-ph.SR2025
Detection of "diffuse" coronal He I 1083 during the April 8 2024 Solar Eclipse: evidence for terrestrial atmospheric scattering origin
M. E. Molnar, R. Casini, P. Bryans +2
Strong He I 1083 nm atomic line signals have been previously measured during total solar eclipses at coronal heights above the lunar limb. This rather unexpected measurement has ki…
astro-ph.SR2025
Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars
Richard Ignace, Kenneth Gayley, Roberto Casini +3
Spectropolarimetric techniques are a mainstay of astrophysical inquiry, ranging from Solar System objects to the Cosmic Background Radiation. This review highlights applications of…
astro-ph.SR2024
Magnetic diffusion in Solar atmosphere produces measurable electric fields
Tetsu Anan, Roberto Casini, Han Uitenbroek +13
The efficient release of magnetic energy in astrophysical plasmas, such as during solar flares, can in principle be achieved through magnetic diffusion, at a rate determined by the…