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Cool DZ white dwarfs II: compositions and evolution of old remnant planetary systems

CEH member Mark Hollands leads a new study which examines pollution of cool DZ white dwarfs.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 477, Issue 1, p.93-111

Open access link: arXiv

CEH members involved: Mark Hollands (lead), Boris Gänsicke


Unstable low-mass planetary systems as drivers of white dwarf pollution

A new study examining white dwarf pollution, and featuring contributions from CEH members Dimitri Veras and Boris Gänsicke, concludes that if planet-planet scattering is responsible for the phenomenon then many such objects can be expected to host (currently undetectable) super-Earth planets on orbits of several au and beyond.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 476, Issue 3, p.3939-3955

Open access link: arXiv

CEH members involved: Dimitri Veras & Boris Gänsicke


The critical binary star separation for a planetary system origin of white dwarf pollution

CEH member Dimitri Veras lead this interesting study on pollution of white dwarf atmospheres by giant planets.

This work was published in Monthly Notices of the Royal Astronomical Society, Volume 473, Issue 3, January 2018, Pages 2871–2880

Open access link: arXiv

CEH members involved: Dimitri Veras