My main research interest is the structure of disc galaxies.
What makes those grand spiral arms we see in the galaxies in our night sky? Why are some barred and not all?
What is the lifetime of such features? Can they be formed in isolation, or is a companion needed to induce some features?
And how do these various arm and bar features impact on the gas in the galaxy?
Of special interest to me is the shape of our own galaxy; the Milky Way.
Rather embarrassingly, we know less about the shape of the Milky Way than other galaxies due to the Earth's position inside the Milky Way.
This makes building a map of the Milky Way, and thus understanding it's structure, somewhat more complicated.
To shed some light on these questions I perform numerical simulations using a variety of hydrodynamical and N-body codes, simulating the gas, stellar and dark matter components.
The results of which can then be compared to observed galaxy quantities to better understand the physics behind their design.
I am currently a joint research-teaching staff at Hokkaido University in the city of Sapporo (Hokkaido, Japan), with my work focusing on galactic morphology.
I gained my undergraduate degree at Durham University under the supervision of Vincent Eke on the topic of the existence of water on the lunar surface.
I gained PhD at the University of Exeter where I worked on the problem of building a map of the Milky Way (see here).
I then worked as a postdoc with Elizabeth Tasker on the topic of tidal encounters between galaxies and small companions.
When not spinning galaxies I enjoy exploring a bit more of beautiful Japan.
In my spare time I enjoy a bit of bouldering, going to the gym, and a good run, though Sapporo winters don't make that last one very easy.
Like many astrophysicists I'm a bit of a sci-fi fan, and am yet to really grow out of graphic novels and video games!
A list of my publications can be found here,
and my entry on Japan's ResearchMap database has plenty of information about my research.
- June 2019: Our paper on clumps in galactic discs has been accepted, read about it here.
- March 2019: I'm off to KITP/Santa Barbara for a few weeks to understand more about modelling galaxies.
- Jan 2019: Our paper on the complex velocity field in bars has been accepted!
- Nov 2018: Attended the conference Life and Times of the Milky Way in Shanghai, contributing a talk on comparing GAIA data to my simulations.
- Oct 2018: Supervising MSc student Veronica Zhang, who will be working on the impact of dark matter halos on spiral and bar structure.
- Sept 2018: Gave a contributed talk at the National Astronomical Meeting in Himeji.
- Sept 2018: Semester starts and I will be teaching Physics I, Classical Mechanics II, and Fourier Analysis.
- Sept 2018: Visited the University of Exeter and gave a seminar.
- Sept 2018: Our paper on SMA observations of interacting galaxies has been accepted to ApJ!
- July 2018: My paper on clouds in interacting galaxies has been accepted by MNRAS.
- June 2018: Attending AMUSE workshop in Kobe to hopefully learn a thing or two!
- April 2018: Classes begin for the first second year of the ISP and I'm teaching Classical Mechanics I.
- April 2018: Co-supervising MSc stduent Elizabeth Iles, who will be working on modeling star formation in barred galaxies.
- March 2018: Attended Habe-san's retirement workshop and gave a talk about GMCs.
- March 2018: Visited collaborators at SHAO and gave two seminars about my work
- Feb 2018: Our paper on the structure of M33 has been accepted! (Dobbs et al.)
- Feb 2018: Gave an invited talk at the FUGIN workshop in Nagoya.
- Jan 2018: Visited collaborators at NOAJ and gave an ALMA-J seminar
News archive here
if you are so inclined! I also have a twitter where I chirp on occasion @arptttt
, McMaster University, Canada
, ISAS, JAXA, Tokyo Japan
, University of Exeter, U.K.
, University of Tokyo, Japan
, Monash University, Australia
, University of Exeter, U.K.