Astrophysical disks

Astrophysical disks are rotationally-supported disks of gas and dust. They are found in a range of astrophysical objects, from small protoplanetary systems and accreting X-ray binaries, to massive disks surrounding actively accreting supermassive black holes in the centre of galaxies. They emit electromagnetic radiation at a range of wavelengths depending on their specific interactions with their parent bodies and surroundings.

Latest Research and Reviews

  • Research |

    Fragile et al. study the physics of accretion onto a neutron star from a thin accretion disk when interacting with an X-ray burst. A number of processes occur in the inner disk, including a reflexive retreat of the inner edge of the disk from the star, on the timescale of the burst.

    • P. Chris Fragile
    • , David R. Ballantyne
    •  & Aidan Blankenship
  • Research |

    Most stars in the Galactic nuclear disk formed at least 8 Gyr ago, with a starburst event about 1 Gyr ago that formed roughly 5% of its mass. This long quiescence has implications on when the Galactic bar was formed and its gas transport efficiency.

    • Francisco Nogueras-Lara
    • , Rainer Schödel
    • , Aurelia Teresa Gallego-Calvente
    • , Eulalia Gallego-Cano
    • , Banafsheh Shahzamanian
    • , Hui Dong
    • , Nadine Neumayer
    • , Michael Hilker
    • , Francisco Najarro
    • , Shogo Nishiyama
    • , Anja Feldmeier-Krause
    • , Julien H. V. Girard
    •  & Santi Cassisi
  • Research |

    Three-dimensional gas velocities in the gapped disk around the young star HD 163296 show meridional flows from the surface of the disk towards its midplane at gap locations.

    • Richard Teague
    • , Jaehan Bae
    •  & Edwin A. Bergin
    Nature 574, 378-381
  • Research |

    Galaxy GSN 069 has unprecedented eruptions of X-ray light every nine hours, which indicate fast transitions between cold and warm states and may shed light on black hole accretion.

    • G. Miniutti
    • , R. D. Saxton
    • , M. Giustini
    • , K. D. Alexander
    • , R. P. Fender
    • , I. Heywood
    • , I. Monageng
    • , M. Coriat
    • , A. K. Tzioumis
    • , A. M. Read
    • , C. Knigge
    • , P. Gandhi
    • , M. L. Pretorius
    •  & B. Agís-González
    Nature 573, 381-384
  • Research |

    Pinte et al. report the kinematic detection of a few-Jupiter-mass planet orbiting at 130 au from the young star HD 97048. The radial position of the planet coincides with a gap in both the gas and dust components of the protoplanetary disk, showing that at least some gaps can be linked to the presence of planets.

    • C. Pinte
    • , G. van der Plas
    • , F. Ménard
    • , D. J. Price
    • , V. Christiaens
    • , T. Hill
    • , D. Mentiplay
    • , C. Ginski
    • , E. Choquet
    • , Y. Boehler
    • , G. Duchêne
    • , S. Perez
    •  & S. Casassus
    Nature Astronomy 3, 1109-1114

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