22 citations · 31 across the 5 of their papers we have counts for
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astro-ph.HE2016★ 6 cited
Time-Variable Aluminum Absorption in the Polar AR Ursae Majoris, and an Updated Estimate for the Mass of the White Dwarf
Yu Bai, Stephen Justham, JiFeng Liu +3
We present spectra of the extreme polar AR Ursae Majoris (AR UMa) which display a clear Al I absorption doublet, alongside spectra taken less than a year earlier in which that feat…
astro-ph.HE2016★ 3 cited
Three X-ray Flares Near Primary Eclipse of the RS CVn Binary XY UMa
Hang Gong, Rachel Osten, Thomas Maccarone +3
We report on an archival X-ray observation of the eclipsing RS CVn binary XY UMa ( 0.48d). In two ACIS observations spanning 200 ks and almost…