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Tamara Rogers, Newcastle University

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Latest Research

  • Article |

    A previously unidentified class of variable stars has been found in OGLE survey data, characterized by periodic brightness variations on ~30-min timescales, amplitudes of ~0.3 mag and temperatures of ~30,000 K. They are potentially evolved low-mass stars.

    • Paweł Pietrukowicz
    • , Wojciech A. Dziembowski
    • , Marilyn Latour
    • , Rodolfo Angeloni
    • , Radosław Poleski
    • , Francesco di Mille
    • , Igor Soszyński
    • , Andrzej Udalski
    • , Michał K. Szymański
    • , Łukasz Wyrzykowski
    • , Szymon Kozłowski
    • , Jan Skowron
    • , Dorota Skowron
    • , Przemek Mróz
    • , Michał Pawlak
    •  & Krzysztof Ulaczyk
  • Letter |

    Low-mass black holes that accrete stars from locally dense environments grow over the Hubble time above a minimal mass of 105 solar masses, independently of their initial mass. This explains why there are no convincing cases of intermediate-mass black holes to date.

    • Tal Alexander
    •  & Ben Bar-Or
  • Letter |

    Combining studies of star formation rates with studies of cloud–magnetic field alignment has revealed that magnetic fields are a primary regulator of star formation. Perpendicular alignment inhibits star formation, whereas parallel alignment facilitates it.

    • Hua-bai Li
    • , Hangjin Jiang
    • , Xiaodan Fan
    • , Qilao Gu
    •  & Yapeng Zhang
  • Letter |

    The brightest galaxy in a cluster is known to align with its host filament in the local Universe. Here this correlation is extended to when the Universe was just a third of its current age. With this, the privileged history of brightest cluster galaxies is reinforced.

    • Michael J. West
    • , Roberto De Propris
    • , Malcolm N. Bremer
    •  & Steven Phillipps
  • Letter |

    Using Si18O as a velocity tracer, evidence is reported for a rotating outflow driven by a magneto-centrifugal disk wind launched by a high-mass young stellar object. This rotation is a signature of the removal of angular momentum by an outflow.

    • Tomoya Hirota
    • , Masahiro N. Machida
    • , Yuko Matsushita
    • , Kazuhito Motogi
    • , Naoko Matsumoto
    • , Mi Kyoung Kim
    • , Ross A. Burns
    •  & Mareki Honma

News & Comment

Current Issue

Volume 1 Issue 6

Tamara Rogers, Newcastle University. Cover art: Alex Wing

Volume 1 Issue 6

Magnetic meteorology

A magnetohydrodynamic model shows that wind and weather on HAT-P-7 b, and other very hot extrasolar planets, are affected by its magnetic field. The same model can be used to infer much-needed constraints on the strength of a hot exoplanet's magnetic field, whose lines are represented on the cover.

See Rogers 1, 0131 (2017).

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