Intro

Graduation from Durham University, June 2016.

Born in Leeds, UK, I completed my Master's degree in Physics and Astronomy at Durham University. My dissertation was on the properties of disk galaxies at the universe's star forming heyday. Check out my current work.

LIVDAT

Members of LIVDAT at the CDT National Kick-Off Event in Cardiff, October 2017

I am a member of the Liverpool Big Data Science (LIVDAT) Centre for Doctoral Training (CDT) initiative, a collaboration between Liverpool John Moores University and the University of Liverpool aimed at training students in managing, analysing and interpreting large datasets.

Research

Jodrell Bank, STFC Introductory Summer School in Astronomy 2017

Introduction

I use the EAGLE (Evolution and Assembly of GaLaxies and their Environments) suite of simulations to understand how galaxies formed and evolved over cosmic history. The physics is modelled with nearly 7 billion particles within a box of length 100 Megaparsecs.

Currently I am using EAGLE to investigate the systematics that may affect future radio weak lensing surveys, such as the SKA (Square Kilometer Array). Gravitational lensing occurs when light from a background source is distorted by the matter along its path to an observer. As lensing is sensitive to all types of matter, it is a highly useful tool in understanding the distribution of dark matter in the universe. Weak lensing causes the images of galaxies to be stretched and rotated with respect to their true selves, so understanding the degree of distortion tells you a lot about what the light encountered on its way to us. So far so good, however other physical phenomena can make it seem like lensing has occurred to a greater extent than it has.

Examples of galaxies taken from EAGLE illustrating the z = 0 Hubble sequence of galaxy morphologies (Schaye et al. 2015).

Current Work

The shapes and orientations of galaxies are dependent on many environmental factors, including the properties of their neighbours and their location with respect to the Cosmic Web . Background galaxies can be lensed by a common cluster to appear to be aligned, equally neighbouring galaxies can be aligned by their common local density field. I am in the process of using EAGLE to characterise the shapes, orientations and alignments of gas, stars and dark matter within galaxies, as well as the alignments between neighbouring galaxies and satellites.

Videos of shape error convergence for different tensors: star-forming gas, dark matter, stars

Future Work

In the future I will work to bridge the gap between simulations and real-world observations by creating ’synthetic skies’, investigating how the universe within the simulation would appear to an internal observer.

Posters

My poster at the SKA General Science Meeting was on the intrinsic alignment of radio galaxies in the EAGLE Simulation.

Talks

In MONTH 2018 I gave a talk to residents of the Liverpool Science Park on the work of the High Performance Computing Group at the ARI [slides].

Outside Astronomy

Collingwood College, Floodlit Cup Champions 2016!

In my time away from the computer screen, I like to explore the wilder parts of the country and to travel abroad. I have recently taken up bouldering, which I do alongside playing rugby, football, tennis and mountain biking. I enjoy reading history, literature

Contact

Please contact me via Email, Twitter or LinkedIn using the below links. My publically available code can be found on my GitHub page.

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