Astronomy and astrophysics

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
    | Open Access

    Satellites with amateur radio communication capabilities have not been operated in lunar orbit before. Here, the authors present the design and performance of a VHF/UHF software-defined radio developed for and tested on lunar microsatellites.

    • Mingchuan Wei
    • , Chaoran Hu
    • , Daniel Estévez
    • , Mier Tai
    • , Yuhao Zhao
    • , Jiahe Huang
    • , Cees Bassa
    • , Tammo Jan Dijkema
    • , Xibin Cao
    •  & Feng Wang
  • Research |

    Pulsar timing measurements show a mass ratio of about 0.8 for the double neutron-star system PSR J1913+1102, and population synthesis models indicate that such asymmetric systems represent 2–30% of merging binaries.

    • R. D. Ferdman
    • , P. C. C. Freire
    • , B. B. P. Perera
    • , N. Pol
    • , F. Camilo
    • , S. Chatterjee
    • , J. M. Cordes
    • , F. Crawford
    • , J. W. T. Hessels
    • , V. M. Kaspi
    • , M. A. McLaughlin
    • , E. Parent
    • , I. H. Stairs
    •  & J. van Leeuwen
    Nature 583, 211-214
  • Reviews |

    Despite comprising only about 15% of the known molecular inventory of the interstellar medium, molecular ions have an outsized role in driving chemical evolution. This Review examines the advances — and challenges — in laboratory spectroscopy that have enabled the study of ions in space.

    • Brett A. McGuire
    • , Oskar Asvany
    • , Sandra Brünken
    •  & Stephan Schlemmer
  • Research |

    Statistical analysis of velocity fluctuations in the interstellar medium (ISM) of the Milky Way and NGC 4321 show that the motion of molecular gas over scales ranging from 0.1 to 1,000 pc is similar, and consistent with that generated by a combination of gravity and turbulence. ISM structure at one scale is therefore linked to structure at other scales.

    • Jonathan D. Henshaw
    • , J. M. Diederik Kruijssen
    • , Steven N. Longmore
    • , Manuel Riener
    • , Adam K. Leroy
    • , Erik Rosolowsky
    • , Adam Ginsburg
    • , Cara Battersby
    • , Mélanie Chevance
    • , Sharon E. Meidt
    • , Simon C. O. Glover
    • , Annie Hughes
    • , Jouni Kainulainen
    • , Ralf S. Klessen
    • , Eva Schinnerer
    • , Andreas Schruba
    • , Henrik Beuther
    • , Frank Bigiel
    • , Guillermo A. Blanc
    • , Eric Emsellem
    • , Thomas Henning
    • , Cynthia N. Herrera
    • , Eric W. Koch
    • , Jérôme Pety
    • , Sarah E. Ragan
    •  & Jiayi Sun
  • Research |

    Analysis of a catalogue of accreted stars by their radial and prograde motions has identified a 200-plus-member coherent stellar stream (called Nyx) that is likely to be the remnant of a dwarf galaxy that merged with the Milky Way.

    • Lina Necib
    • , Bryan Ostdiek
    • , Mariangela Lisanti
    • , Timothy Cohen
    • , Marat Freytsis
    • , Shea Garrison-Kimmel
    • , Philip F. Hopkins
    • , Andrew Wetzel
    •  & Robyn Sanderson

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