Astronomy and astrophysics

Definition

Astronomy and astrophysics are the study of objects and phenomena that are found beyond our solar system. This combines theoretical simulations and observation with both terrestrial and space-craft-borne instruments of the electromagnetic radiation and high-energy particles emitted by celestial bodies.

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Latest Research and Reviews

  • Research |

    Four galaxies discovered near quasars at redshifts exceeding 6 have star-formation rates that are high enough to explain the massive elliptical galaxies known to exist at redshifts of about 4.

    • R. Decarli
    • , F. Walter
    • , B. P. Venemans
    • , E. Bañados
    • , F. Bertoldi
    • , C. Carilli
    • , X. Fan
    • , E. P. Farina
    • , C. Mazzucchelli
    • , D. Riechers
    • , H.-W. Rix
    • , M. A. Strauss
    • , R. Wang
    •  & Y. Yang
    Nature 545, 457–461
  • Research |

    Using an innovative method, the mass of a pulsar can be constrained using the maximum ‘glitch’ in the star’s rotational frequency: the bigger the glitch, the lower the mass. This method is used to estimate the mass of all observed glitchers.

    • P. M. Pizzochero
    • , M. Antonelli
    • , B. Haskell
    •  & S. Seveso
  • Research |

    The origin of Galactic positrons that produce gamma ray emission when annihilated is still debated. Mergers of two white dwarfs are likely to be the main source of these positrons. Such mergers produce sub-luminous, thermonuclear supernovae.

    • Roland M. Crocker
    • , Ashley J. Ruiter
    • , Ivo R. Seitenzahl
    • , Fiona H. Panther
    • , Stuart Sim
    • , Holger Baumgardt
    • , Anais Möller
    • , David M. Nataf
    • , Lilia Ferrario
    • , J. J. Eldridge
    • , Martin White
    • , Brad E. Tucker
    •  & Felix Aharonian
  • Research |

    Orbital parameters for the seventh Earth-sized transiting planet around star TRAPPIST-1 are reported, along with an investigation into the complex three-body resonances linking every member of this planetary system.

    • Rodrigo Luger
    • , Marko Sestovic
    • , Ethan Kruse
    • , Simon L. Grimm
    • , Brice-Olivier Demory
    • , Eric Agol
    • , Emeline Bolmont
    • , Daniel Fabrycky
    • , Catarina S. Fernandes
    • , Valérie Van Grootel
    • , Adam Burgasser
    • , Michaël Gillon
    • , James G. Ingalls
    • , Emmanuël Jehin
    • , Sean N. Raymond
    • , Franck Selsis
    • , Amaury H. M. J. Triaud
    • , Thomas Barclay
    • , Geert Barentsen
    • , Steve B. Howell
    • , Laetitia Delrez
    • , Julien de Wit
    • , Daniel Foreman-Mackey
    • , Daniel L. Holdsworth
    • , Jérémy Leconte
    • , Susan Lederer
    • , Martin Turbet
    • , Yaseen Almleaky
    • , Zouhair Benkhaldoun
    • , Pierre Magain
    • , Brett M. Morris
    • , Kevin Heng
    •  & Didier Queloz

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