A planetesimal orbiting within the debris disc around a white dwarf star

  title={A planetesimal orbiting within the debris disc around a white dwarf star},
  author={Christopher J. Manser and Boris T. G{\"a}nsicke and Siegfried Eggl and Mark Andrew Hollands and Paula Izquierdo and Detlev Koester and John D. Landstreet and Wladimir Lyra and Thomas R. Marsh and Farzana Meru and Alexander J. Mustill and Pablo Rodr{\'i}guez-Gil and Odette Toloza and Dimitri Veras and David J. Wilson and Matthew R. Burleigh and Melvyn B. Davies and Jay Farihi and Nicola Pietro Gentile Fusillo and Domitilla de Martino and Steven G. Parsons and Andreas Quirrenbach and Roberto Raddi and Sabine Reffert and Melania Del Santo and Matthias R. Schreiber and Roberto Silvotti and Silvia Toonen and Eva Villaver and Mark C. Wyatt and Siyi Xu and Simon F. Portegies Zwart},
  pages={66 - 69}
A low-mass planet around a white dwarf Numerous exoplanets have been detected around Sun-like stars. These stars end their lives as white dwarfs, which should inherit any surviving planetary systems. Manser et al. found periodic shifts in emission lines from a disc of gas orbiting around a white dwarf (see the Perspective by Fossati). They used numerical simulations to show that the most likely explanation for the spectral shifts is a low-mass planet orbiting within the disc. The planet must be… 

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  • D. Veras
  • Physics, Geology
    Oxford Research Encyclopedia of Planetary Science
  • 2021
White dwarf planetary science is a rapidly growing field of research featuring a diverse set of observations and theoretical explorations. Giant planets, minor planets, and debris discs have all been

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  • D. VerasJ. Fuller
  • Physics, Geology
    Monthly Notices of the Royal Astronomical Society
  • 2019
A gas giant planet which survives the giant branch stages of evolution at a distance of many au and then is subsequently perturbed sufficiently close to a white dwarf will experience orbital

How Sublimation Delays the Onset of Dusty Debris Disk Formation around White Dwarf Stars

Although numerous white dwarf stars host dusty debris disks, the temperature distribution of these stars differs significantly from the white dwarf population as a whole. Dusty debris disks exist

The lifetimes of planetary debris discs around white dwarfs

  • D. VerasK. Heng
  • Physics, Geology
    Monthly Notices of the Royal Astronomical Society
  • 2020
The lifetime of a planetary disc that orbits a white dwarf represents a crucial input parameter into evolutionary models of that system. Here we apply a purely analytical formalism to estimate



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Observations of a white dwarf being transited by at least one, and probably several, disintegrating planetesimals are reported, providing further evidence that the pollution of white dwarfs by heavy elements might originate from disrupted rocky bodies such as asteroids and minor planets.


Infrared studies have revealed debris likely related to planet formation in orbit around ∼30% of youthful, intermediate mass, main-sequence stars. We present evidence, based on atmospheric pollution

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A metal-rich gas disk around a moderately hot and young white dwarf implies that planetary systems may form around high-mass stars.

Survival of a brown dwarf after engulfment by a red giant star

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Context. Heavy metals in the atmospheres of white dwarfs are thought in many cases to be accreted from a circumstellar debris disk, which was formed by the tidal disruption of a rocky planetary body

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We study the survival of gas planets around stars with masses in the range 1-5 M☉, as these stars evolve off the main sequence. We show that planets with masses smaller than one Jupiter mass do not

Flows of gas through a protoplanetary gap

Observations of diffuse CO gas inside the gap, with denser HCO+ gas along gap-crossing filaments are reported, which is sufficient to maintain accretion onto the star at the present rate.

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Although 25%-50% of white dwarfs (WDs) display evidence for remnant planetary systems, their orbital architectures and overall sizes remain unknown. Vibrant close-in (~1 Solar radius) circumstellar

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The majority of stars both host planetary systems and evolve into a white dwarf (WD). To understand their post-main-sequence (PMS) planetary system evolution, we present a search for

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We present the discovery of strongly variable emission lines from a gaseous disc around the DA white dwarf SDSS J1617+1620, a star previously found to have an infrared excess indicative of a dusty