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 |

    By assessing the ionization fraction of the environment around Tycho’s (type Ia) supernova, the authors have constrained the properties of its progenitor enough to rule out a hot, luminous white dwarf. A double white dwarf binary merger is allowed.

    • T. E. Woods
    • , P. Ghavamian
    • , C. Badenes
    •  & M. Gilfanov
  • Reviews |

    The material surrounding accreting supermassive black holes connects them with their hosts. From studies in the infrared and X-rays, the structure of this material is found to be complex, clumpy and dynamic.

    • Cristina Ramos Almeida
    •  & Claudio Ricci
  • Research |

    The authors present a spectrophotometric and hydrodynamical study of supernova OGLE-2014-SN-073, which had remarkably high inferred ejecta mass and energy, potentially higher than can be explained with canonical core-collapse neutrino-driven explosions.

    • G. Terreran
    • , M. L. Pumo
    • , T.-W. Chen
    • , T. J. Moriya
    • , F. Taddia
    • , L. Dessart
    • , L. Zampieri
    • , S. J. Smartt
    • , S. Benetti
    • , C. Inserra
    • , E. Cappellaro
    • , M. Nicholl
    • , M. Fraser
    • , Ł. Wyrzykowski
    • , A. Udalski
    • , D. A. Howell
    • , C. McCully
    • , S. Valenti
    • , G. Dimitriadis
    • , K. Maguire
    • , M. Sullivan
    • , K. W. Smith
    • , O. Yaron
    • , D. R. Young
    • , J. P. Anderson
    • , M. Della Valle
    • , N. Elias-Rosa
    • , A. Gal-Yam
    • , A. Jerkstrand
    • , E. Kankare
    • , A. Pastorello
    • , J. Sollerman
    • , M. Turatto
    • , Z. Kostrzewa-Rutkowska
    • , S. Kozłowski
    • , P. Mróz
    • , M. Pawlak
    • , P. Pietrukowicz
    • , R. Poleski
    • , D. Skowron
    • , J. Skowron
    • , I. Soszyński
    • , M. K. Szymański
    •  & K. Ulaczyk
  • Research |

    The polarization resulting from electron scattering in a stellar atmosphere has been detected towards the rapidly spinning star Regulus. Deformation of the star from spherical allows this effect to be seen, fulfilling a prediction from around 50 years ago.

    • Daniel V. Cotton
    • , Jeremy Bailey
    • , Ian D. Howarth
    • , Kimberly Bott
    • , Lucyna Kedziora-Chudczer
    • , P. W. Lucas
    •  & J. H. Hough

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