263 citations · 2.5k across the 57 of their papers we have counts for
57 papers
Magnetically guided accretion and extremely slow rotation in a metal-enriched white dwarf
S. Bagnulo, M. A. Stroet, C. P. Folsom +3
White dwarfs that show atmospheric metal enrichment offer a direct window into the bulk composition of exoplanetary material and provide some of the most direct constraints on the…
The pre-perihelion evolution of the activity of comet C/2017 K2 (PANSTARRS) during the water ice-line crossover
Yuna G. Kwon, Stefano Bagnulo, Johannes Markkanen +4
Comets, relics from the early solar system, consist of dust and ice. The ice sublimates as comets approach the Sun, ejecting dust from their nuclei seen as activity. Different vola…
Metal accretion scars may be common on magnetic, polluted white dwarfs
S. Bagnulo, J. D. Landstreet, J. Farihi +3
More than 30% of white dwarfs exhibit atmospheric metals, which are understood to be from recent or ongoing accretion of circumstellar debris. In cool white dwarfs, surface motions…
Imaging Polarimetry of Comet 67P/Churyumov-Gerasimenko: Homogeneous Distribution of Polarisation and its Implications
Zuri Gray, Stefano Bagnulo, Hermann Boehnhardt +8
Comet 67P/Churyumov-Gerasimenko (67P) become observable for the first time in 2021 since the Rosetta rendezvous in 2014--16. Here, we present pre-perihelion polarimetric measuremen…
Discovery of magnetically guided metal accretion onto a polluted white dwarf
S. Bagnulo, J. Farihi, J. D. Landstreet +1
Dynamically active planetary systems orbit a significant fraction of white dwarf stars. These stars often exhibit surface metals accreted from debris disks, which are detected thro…
Rotation plays a role in the generation of magnetic fields in single white dwarfs
Mercedes S. Hernandez, Matthias R. Schreiber, John D. Landstreet +5
Recent surveys of close white dwarf binaries as well as single white dwarfs have provided evidence for the late appearance of magnetic fields in white dwarfs, and a possible genera…