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16 papers · 2 filters
Ubiquitous radio emission in quasars: predominant AGN origin and a connection to jets, dust and winds
G. Calistro-Rivera, D. M. Alexander, C. M. Harrison +16
We present a comprehensive study of the physical origin of radio emission in optical quasars at redshifts z < 2.5. We focus particularly on the associations between compact radio e…
SPICE: the connection between cosmic reionisation and stellar feedback in the first galaxies
Aniket Bhagwat, Tiago Costa, Benedetta Ciardi +2
We present SPICE, a new suite of RHD cosmological simulations targeting the epoch of reionisation. The goal of these simulations is to systematically probe a variety of stellar fee…
Nonlinear magnetic buoyancy instability and turbulent dynamo
Yasin Qazi, Anvar Shukurov, Devika Tharakkal +2
Stratified disks with strong horizontal magnetic fields are susceptible to magnetic buoyancy instability (MBI). Modifying the magnetic field and gas distributions, this can play an…
Complex AGN feedback in the Teacup galaxy. A powerful ionised galactic outflow, jet-ISM interaction, and evidence for AGN-triggered star formation in a giant bubble
G. Venturi, E. Treister, C. Finlez +10
The ~0.1 type-2 QSO J1430+1339 (the 'Teacup') is a complex galaxy showing a loop of ionised gas ~10 kpc in diameter, co-spatial radio bubbles, a compact (~1 kpc) jet, and outflo…
Establishing the impact of luminous AGN with multi-wavelength observations and simulations
C. M. Harrison, A. Girdhar, S. R. Ward
Cosmological simulations fail to reproduce realistic galaxy populations without energy injection from active galactic nuclei (AGN) into the interstellar medium (ISM) and circumgala…
Transition from small-scale to large-scale dynamo in a supernova-driven, multiphase medium
Frederick A. Gent, Mordecai-Mark Mac Low, Maarit J. Korpi-Lagg
Magnetic fields are widely recognised as critical at many scales to galactic dynamics and structure, including multiphase pressure balance, dust processing, and star formation. Usi…