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An independent determination of Fomalhaut b’s orbit and the dynamical effects on the outer dust belt
The nearby star Fomalhaut harbours a cold, moderately eccentric dust belt with a sharp inner edge near 133 au. A low-mass, common proper motion companion (Fom b), was discovered near the inner edgeExpand
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Formation of planetary debris discs around white dwarfs – I. Tidal disruption of an extremely eccentric asteroid
25–50 per cent of all white dwarfs (WDs) host observable and dynamically active remnant planetary systems based on the presence of close-in circumstellar dust and gas and photospheric metalExpand
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Vega and Fomalhaut are similar in terms of mass, ages, and global debris disk properties; therefore, they are often referred to as "debris disk twins." We present Spitzer 10-35 μm spectroscopic dataExpand
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The great escape: how exoplanets and smaller bodies desert dying stars
Mounting discoveries of extrasolar planets orbiting post-main sequence stars motivate studies aimed at understanding the fate of these planets. In the traditional “adiabatic” approximation, aExpand
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Stochastic accretion of planetesimals on to white dwarfs: constraints on the mass distribution of accreted material from atmospheric pollution
This paper explores how the stochastic accretion of planetesimals on to white dwarfs would be manifested in observations of their atmospheric pollution. Archival observations of pollution levels forExpand
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Post-main-sequence evolution of A star debris discs
While the population of main-sequence debris discs is well constrained, little is known about debris discs around evolved stars. This paper provides a theoretical framework considering the effects ofExpand
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A near-infrared interferometric survey of debris-disk stars - IV. An unbiased sample of 92 southern stars observed in H band with VLTI/PIONIER
Context. Detecting and characterizing circumstellar dust is a way to study the architecture and evolution of planetary systems. Cold dust in debris disks only traces the outer regions. Warm and hotExpand
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An interferometric study of the Fomalhaut inner debris disk: III. Detailed models of the exozodiacal disk and its origin
Context. Debris disks are thought to be extrasolar analogs to the solar system planetesimal belts. The star Fomalhaut harbors a cold debris belt at 140 AU comparable to the Edgeworth-Kuiper belt, asExpand
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Debris froms giant impacts between planetary embryos at large orbital radii
We consider the observational signatures of giant impacts between planetary embryos. While the debris released in the impact remains in a clump for only a single orbit, there is a much longer lastingExpand
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How to design a planetary system for different scattering outcomes: giant impact sweet spot, maximising exocomets, scattered disks
This paper considers the dynamics of scattering of planetesimals or planetary embryos by a planet on a circumstellar orbit. We classify six regions in the planet's mass versus semimajor axisExpand
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