117 citations · 973 across the 43 of their papers we have counts for
4 papers · 1 filter
Element abundance patterns in stars indicate fission of nuclei heavier than uranium
Ian U. Roederer, Nicole Vassh, Erika M. Holmbeck +9
The heaviest chemical elements are naturally produced by the rapid neutron-capture process (r-process) during neutron star mergers or supernovae. The r-process production of elemen…
Derivation of Instrument Requirements for Polarimetry using Mg, Fe, and Mn lines between 250 and 290 nm
A. G. de Wijn, P. G. Judge, R. Ezzeddine +1
Judge et al. (2021) recently argued that a region of the solar spectrum in the near-UV between about 250 and 290 nm is optimal for studying magnetism in the solar chromosphere due…
GTC Follow-up Observations of Very Metal-Poor Star Candidates from DESI
Carlos Allende Prieto, David S. Aguado, Jonay I. González Hernández +48
The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ~ 10, improving the…
Uranium Abundances and Ages of -process Enhanced Stars with Novel U II Lines
Shivani P. Shah, Rana Ezzeddine, Alexander P. Ji +7
The ages of the oldest stars shed light on the birth, chemical enrichment, and chemical evolution of the Universe. Nucleocosmochronometry provides an avenue to determining the ages…