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Showing 1–8 of 8 results
Advanced filters: Author: Ehud Behar Clear advanced filters

  • Kinematic measurements of the Perseus galaxy cluster reveal two drivers of gas motions: a small-scale driver in the inner core associated with black-hole feedback and a large-scale driver in the outer core powered by mergers.

    • Marc Audard
    • Hisamitsu Awaki
    • Elena Bellomi
    Research
    Nature
    P: 1-5

  • XRISM observations show the presence of odd-numbered elements chlorine and potassium in Cas A. These findings suggest that stellar activity plays an important role in cosmic chemical evolution, enriching space with elements vital for planets and life.

    • Marc Audard
    • Hisamitsu Awaki
    • Manan Agarwal
    ResearchOpen Access
    Nature Astronomy
    Volume: 10, P: 144-153

  • Observations of a luminous quasar from the high-resolution spectrometer Resolve aboard XRISM revealed highly inhomogeneous wind structure outflowing from a supermassive black hole, which probably consists of up to a million clumps.

    • Marc Audard
    • Hisamitsu Awaki
    • Yerong Xu
    Research
    Nature
    Volume: 641, P: 1132-1136

  • X-ray spectroscopic observations of the Centaurus galaxy cluster with the X-Ray Imaging and Spectroscopy Mission satellite show that the hot gas flows along the line of sight relative to the central galaxy.

    • Marc Audard
    • Hisamitsu Awaki
    • Anwesh Majumder
    Research
    Nature
    Volume: 638, P: 365-369

  • A magnetohydrodynamic model for outflows around supermassive black holes can also reproduce the X-ray properties of an outflow around a stellar black hole. This indicates that magnetic forces have a universal role to play in driving these winds.

    • Keigo Fukumura
    • Demosthenes Kazanas
    • Ioannis Contopoulos
    Research
    Nature Astronomy
    Volume: 1, P: 1-6

  • This article reviews radio emission mechanisms in radio-quiet active galactic nuclei (AGNs), from star formation and AGN winds, to free-free emission from photoionized gas and AGN disk coronal activity. These mechanisms can be probed by sensitive radio observatories.

    • Francesca Panessa
    • Ranieri Diego Baldi
    • Ian McHardy
    Reviews
    Nature Astronomy
    Volume: 3, P: 387-396