Volume 1 Issue 1 January 2017

Volume 1 Issue 1

Radio rendez-vous

Radio relics are diffuse radio sources of highly energetic cosmic rays that are found within galaxy clusters. A combined optical, radio (red) and X-ray (blue) study of a colliding pair of galaxy clusters reveals that relativistic electrons ejected from an actively accreting black hole are efficiently re-accelerated at a cluster shock to produce bright, large-scale radio emission.

See van Weeren et al. 1, 0005 (2017).

NASA/CXC/SAO/R. van Weeren et al.; NCRA/TIFR/GMRT; NAOJ/Subaru. Cover design: Alex Wing

Editorial

  • Editorial |

    Astronomers, astrophysicists and planetary scientists are global citizens who transcend political boundaries. Nature Astronomy supports a strong, open community with common interests.

Correspondence

Comment

  • Comment |

    Scientists are comfortable in their own communities but other groups working on similar phenomena at different length scales could provide unexpected insights. Collaborations are more likely to uncover common underlying principles.

    • Abraham Loeb
    •  & Nia Imara
  • Mission Control |

    Following the completion of the largest single-dish radio telescope ever built, the real work may now begin, explain Rendong Nan and Haiyan Zhang.

    • Rendong Nan
    •  & Haiyan Zhang

Books & Arts

Research Highlights

News & Views

  • News and Views |

    Atmospheres within the Solar System are known to exhibit seasonal changes. Observations with the Kepler spacecraft hint at analogous periodic weather variations in an exoplanet atmosphere.

    • Nikole Lewis
  • News and Views |

    Early observations of the flaring object ASASSN-15lh led astronomers to cast it as the most luminous supernova ever. Now, convincing evidence indicates that this object is not as it seemed. In fact, fitting it into any known box is a challenge.

    • S. Bradley Cenko
  • News and Views |

    The heated debate on the importance of stellar rotation and age spreads in massive star clusters has just become hotter by throwing stellar variability into the mix.

    • Richard de Grijs
  • News and Views |

    The detection of a tailed radio galaxy in a galaxy cluster conjoined to a region of diffuse radio emission confirms that radio galaxies provide the energetic electrons needed to explain the origin of this enigmatic emission.

    • Melanie Johnston-Hollitt

Video

  • Video |

    Water ice has been spotted on Ceres, the largest asteroid in the asteroid belt. The ice is trapped in craters at the northern pole — some of the coldest, darkest places in our Solar System. Ceres is now the third planetary body, after the Moon and Mercury, where water ice has been detected in permanently shadowed areas.

Review Article

  • Review Article |

    This Review gives an overview of some pivotal open questions on planetary formation and evolution, with water as the underlying common theme, and how the planetary and exoplanetary communities can help each other in addressing them.

    • Andrew P. Ingersoll

Research

  • Letter |

    Analysis of atmospheric spectra between 20 and 350 μm obtained at Dome A in Antarctica reveals the excellent year-round conditions of this location for Terahertz & Far-IR astronomical observations from ground, usually hindered by water vapour bands.

    • Sheng-Cai Shi
    • , Scott Paine
    • , Qi-Jun Yao
    • , Zhen-Hui Lin
    • , Xin-Xing Li
    • , Wen-Ying Duan
    • , Hiroshi Matsuo
    • , Qizhou Zhang
    • , Ji Yang
    • , M. C. B. Ashley
    • , Zhaohui Shang
    •  & Zhong-Wen Hu
  • Letter |

    Bright deposits, at least one of which is made up of water ice, are detected in the permanent shadows of 10 craters in the northern polar area of the dwarf planet Ceres. This means that Ceres traps water ice at high latitudes, like the Moon and Mercury.

    • T. Platz
    • , A. Nathues
    • , N. Schorghofer
    • , F. Preusker
    • , E. Mazarico
    • , S. E. Schröder
    • , S. Byrne
    • , T. Kneissl
    • , N. Schmedemann
    • , J.-P. Combe
    • , M. Schäfer
    • , G. S. Thangjam
    • , M. Hoffmann
    • , P. Gutierrez-Marques
    • , M. E. Landis
    • , W. Dietrich
    • , J. Ripken
    • , K.-D. Matz
    •  & C. T. Russell
  • Letter |

    The detection of temporal variations in the peak of the phase curve of the hot giant exoplanet HAT-P-7 b is explained by changes in wind speed and cloud coverage in its atmosphere. Such ‘weather’ has never before been observed on a giant exoplanet.

    • D. J. Armstrong
    • , E. de Mooij
    • , J. Barstow
    • , H. P. Osborn
    • , J. Blake
    •  & N. Fereshteh Saniee
  • Letter |

    Transient object ASASSN-15lh was previously cast as the most luminous supernova ever discovered. Now, however, there is convincing evidence that its flare was a tidal disruption event: a rapidly-spinning black hole tearing apart a neighbouring star.

    • G. Leloudas
    • , M. Fraser
    • , N. C. Stone
    • , S. van Velzen
    • , P. G. Jonker
    • , I. Arcavi
    • , C. Fremling
    • , J. R. Maund
    • , S. J. Smartt
    • , T. Krìhler
    • , J. C. A. Miller-Jones
    • , P. M. Vreeswijk
    • , A. Gal-Yam
    • , P. A. Mazzali
    • , A. De Cia
    • , D. A. Howell
    • , C. Inserra
    • , F. Patat
    • , A. de Ugarte Postigo
    • , O. Yaron
    • , C. Ashall
    • , I. Bar
    • , H. Campbell
    • , T.-W. Chen
    • , M. Childress
    • , N. Elias-Rosa
    • , J. Harmanen
    • , G. Hosseinzadeh
    • , J. Johansson
    • , T. Kangas
    • , E. Kankare
    • , S. Kim
    • , H. Kuncarayakti
    • , J. Lyman
    • , M. R. Magee
    • , K. Maguire
    • , D. Malesani
    • , S. Mattila
    • , C. V. McCully
    • , M. Nicholl
    • , S. Prentice
    • , C. Romero-Cañizales
    • , S. Schulze
    • , K. W. Smith
    • , J. Sollerman
    • , M. Sullivan
    • , B. E. Tucker
    • , S. Valenti
    • , J. C. Wheeler
    •  & D. R. Young
  • Letter |

    Measurements of cold molecular gas from galaxies with stellar masses and star formation rates similar to those of the main progenitor of the Milky Way 8.5 billion years ago show similar physics of star formation to that seen now.

    • C. Papovich
    • , I. Labbé
    • , K. Glazebrook
    • , R. Quadri
    • , G. Bekiaris
    • , M. Dickinson
    • , S. L. Finkelstein
    • , D. Fisher
    • , H. Inami
    • , R. C. Livermore
    • , L. Spitler
    • , C. Straatman
    •  & K.-V. Tran
  • Letter |

    Multi-wavelength data from a cluster–cluster merger reveals that relativistic electrons ejected from near an actively accreting black hole are efficiently re-accelerated at a cluster shock to produce characteristically diffuse radio emission.

    • Reinout J. van Weeren
    • , Felipe Andrade-Santos
    • , William A. Dawson
    • , Nathan Golovich
    • , Dharam V. Lal
    • , Hyesung Kang
    • , Dongsu Ryu
    • , Marcus Brüggen
    • , Georgiana A. Ogrean
    • , William R. Forman
    • , Christine Jones
    • , Vinicius M. Placco
    • , Rafael M. Santucci
    • , David Wittman
    • , M. James Jee
    • , Ralph P. Kraft
    • , David Sobral
    • , Andra Stroe
    •  & Kevin Fogarty
  • Letter |

    An experimental apparatus using a single optical atomic clock to detect dark matter topological defects (like strings) is proposed. Tests show it can constrain the dark matter–Standard Model coupling strength ~3 orders of magnitude better than previous limits.

    • P. Wcisło
    • , P. Morzyński
    • , M. Bober
    • , A. Cygan
    • , D. Lisak
    • , R. Ciuryło
    •  & M. Zawada
  • Corrigendum |

    • G. Leloudas
    • , M. Fraser
    • , N. C. Stone
    • , S. van Velzen
    • , P. G. Jonker
    • , I. Arcavi
    • , C. Fremling
    • , J. R. Maund
    • , S. J. Smartt
    • , T. Krìhler
    • , J. C. A. Miller-Jones
    • , P. M. Vreeswijk
    • , A. Gal-Yam
    • , P. A. Mazzali
    • , A. De Cia
    • , D. A. Howell
    • , C. Inserra
    • , F. Patat
    • , A. de Ugarte Postigo
    • , O. Yaron
    • , C. Ashall
    • , I. Bar
    • , H. Campbell
    • , T.-W. Chen
    • , M. Childress
    • , N. Elias-Rosa
    • , J. Harmanen
    • , G. Hosseinzadeh
    • , J. Johansson
    • , T. Kangas
    • , E. Kankare
    • , S. Kim
    • , H. Kuncarayakti
    • , J. Lyman
    • , M. R. Magee
    • , K. Maguire
    • , D. Malesani
    • , S. Mattila
    • , C. V. McCully
    • , M. Nicholl
    • , S. Prentice
    • , C. Romero-Cañizales
    • , S. Schulze
    • , K. W. Smith
    • , J. Sollerman
    • , M. Sullivan
    • , B. E. Tucker
    • , S. Valenti
    • , J. C. Wheeler
    •  & D. R. Young