179 citations · 1.7k across the 72 of their papers we have counts for
15 papers · 1 filter
A multi-ion non-equilibrium solver for ionised astrophysical plasmas with arbitrary elemental abundances
Arun Mathew, Jonathan Mackey, Maggie Celeste +2
While many astrophysical plasmas can be modelled successfully assuming ionisation and thermal equilibrium, in some cases this is not appropriate and a non-equilibrium approach is r…
A far-ultraviolet-driven photoevaporation flow observed in a protoplanetary disk
Olivier Berné, Emilie Habart, Els Peeters +143
Most low-mass stars form in stellar clusters that also contain massive stars, which are sources of far-ultraviolet (FUV) radiation. Theoretical models predict that this FUV radiati…
Illuminating evaporating protostellar outflows: ERIS/SPIFFIER reveals the dissociation and ionization of HH 900
Megan Reiter, Thomas J. Haworth, Carlo F. Manara +4
Protostellar jets and outflows are signposts of active star formation. In H II regions, molecular tracers like CO only reveal embedded portions of the outflow. Outside the natal cl…
The VLT MUSE NFM view of outflows and externally photoevaporating discs near the Orion Bar
Thomas J. Haworth, Megan Reiter, C. Robert O'Dell +10
We present VLT/MUSE Narrow Field Mode (NFM) observations of a pair of disc-bearing young stellar objects towards the Orion Bar: 203-504 and 203-506. Both of these discs are subject…
Deep diving off the `Cosmic Cliffs': previously hidden outflows in NGC 3324 revealed by JWST
Megan Reiter, Jon A. Morse, Nathan Smith +3
We present a detailed analysis of the protostellar outflow activity in the massive star-forming region NGC 3324, as revealed by new Early Release Observations (ERO) from the James…
Discovery of a 500 au Protobinary in the Massive Prestellar Core G11.92-0.61 MM2
C. J. Cyganowski, J. D. Ilee, C. L. Brogan +4
We present high-resolution (< ~160 au) Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm observations of the high-mass prestellar core candidate G11.92-0.61 MM2, which rev…
PION: Simulations of Wind-Blown Nebulae
Jonathan Mackey, Samuel Green, Maria Moutzouri +6
We present an overview of PION, an open-source software project for solving radiation-magnetohydrodynamics equations on a nested grid, aimed at modelling asymmetric nebulae around…
Thermal emission from bow shocks II: 3D magnetohydrodynamic models of Zeta Ophiuchi
S. Green, J. Mackey, P. Kavanagh +3
The nearby, massive, runaway star Zeta Ophiuchi has a large bow shock detected in optical and infrared, and, uniquely among runaway O stars, diffuse X-ray emission is detected from…
PION: Simulating bow shocks and circumstellar nebulae
Jonathan Mackey, Samuel Green, Maria Moutzouri +4
Expanding nebulae are produced by mass loss from stars, especially during late stages of evolution. Multi-dimensional simulation of these nebulae requires high resolution near the…
Illuminating a tadpole's metamorphosis III: quantifying past and present environmental impact
Megan Reiter, Thomas J. Haworth, Andrés E. Guzmán +3
We combine MUSE and ALMA observations with theoretical models to evaluate how a tadpole-shaped globule located in the Carina Nebula has been influenced by its environment. This glo…
Illuminating a tadpole's metamorphosis II: observing the on-going transformation with ALMA
Megan Reiter, Andrés E. Guzmán, Thomas J. Haworth +4
We present new Atacama Large Millimeter/submillimeter Array (ALMA) observations of the tadpole, a small globule in the Carina Nebula that hosts the HH 900 jet+outflow system. Our d…
Thermal emission from bow shocks I: 2D Hydrodynamic Models of the Bubble Nebula
Samuel Green, Jonathan Mackey, Thomas J. Haworth +2
The Bubble Nebula (or NGC 7635) is a parsec-scale seemingly spherical wind-blown bubble around the relatively unevolved O star BD+602522. The small dynamical age of the neb…
The classical D-type expansion of spherical H II regions
Robin J. R. Williams, Thomas G. Bisbas, Thomas J. Haworth +1
Recent numerical and analytic work has highlighted some shortcomings in our understanding of the dynamics of H II region expansion, especially at late times, when the H II region a…
Synthetic observations of star formation and the interstellar medium
Thomas J. Haworth, Simon C. O. Glover, Christine M. Koepferl +2
Synthetic observations are playing an increasingly important role across astrophysics, both for interpreting real observations and also for making meaningful predictions from model…
Detecting stellar-wind bubbles through infrared arcs in HII regions
Jonathan Mackey, Thomas J. Haworth, Vasilii V. Gvaramadze +3
Mid-infrared arcs of dust emission are often seen near ionizing stars within HII regions. A possible explanations for these arcs is that they could show the outer edges of asymmetr…