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First Co-spatial Comparison of Stellar, Neutral-, and Ionized-gas Metallicities in a metal-rich galaxy: M83
Svea Hernandez, Alessandra Aloisi, Bethan L. James +14
We carry out a comparative analysis of the metallicities from the stellar, neutral-gas, and ionized-gas components in the metal-rich spiral galaxy M83. We analyze spectroscopic obs…
Imagery and UV Spectroscopy of the LMC Supernova Remnant N103B Using HST
William P. Blair, Parviz Ghavamian, John C. Raymond +6
We present HST/WFC3 multiband imagery of N103B, the remnant of a Type Ia supernova in the Large Magellanic Cloud, as well as HST/COS ultraviolet spectroscopy of the brightest radia…
A New Radio Catalogue for M83: Supernova Remnants and H II Regions
Thomas D. Russell, Richard L. White, Knox S. Long +3
We present a new catalogue of radio sources in the face-on spiral galaxy M83. Radio observations taken in 2011, 2015, and 2017 with the Australia Telescope Compact Array (ATCA) at…
Accretion Disc Winds in Tidal Disruption Events: Ultraviolet Spectral Lines as Orientation Indicators
Edward J. Parkinson, Christian Knigge, Knox S. Long +4
Some tidal disruption events (TDEs) exhibit blueshifted broad absorption lines (BALs) in their rest-frame ultraviolet (UV) spectra, while others display broad emission lines (BELs)…
Thermal and radiation driving can produce observable disk winds in hard-state X-ray binaries
Nick Higginbottom, Christian Knigge, Stuart A. Sim +5
X-ray signatures of outflowing gas have been detected in several accreting black-hole binaries, always in the soft state. A key question raised by these observations is whether the…
Stratified disc wind models for the AGN broad-line region: ultraviolet, optical and X-ray properties
James H. Matthews, Christian Knigge, Nick Higginbottom +5
The origin, geometry and kinematics of the broad line region (BLR) gas in quasars and active galactic nuclei (AGN) are uncertain. We demonstrate that clumpy biconical disc winds il…