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astro-ph.SR2026
High Velocity Circumstellar Gas Orbiting a White Dwarf Star
B. Zuckerman, Érika Le Bourdais, Beth L. Klein +6
Numerous white dwarf stars are known to be orbited by disks of gas and dust. To date, broad, about 300 km s-1 wide, gaseous circumstellar absorption features have only been reporte…
astro-ph.EP2026
Accretion Rate Changes Detected in a Polluted White Dwarf
Jay Farihi, Hiba Tu Noor, Carl Melis +6
This letter reports statistically significant changes in the equivalent widths of MgII and CaII lines in the dusty and polluted white dwarf WD 0106-328, based on six epochs of spec…