Sam Vaughan

Email:

I am a final-year PhD student at the University of Oxford, studying galaxy evolution and formation using a process called Integral Field Spectroscopy. I use large data sets and cutting-edge computing techniques to study the stars that galaxies are made of, how those stars are moving, and what this can tell us about the Universe we live in.

Research

DPhil: University of Oxford, 2015- Present

Supervisor: Professor Roger Davies
The formation and evolution of elliptical and star-forming galaxies

MPhys Project: University of Oxford, 2014-2015

Supervisor: Professor Chis Lintott
Star-formation histories of SDSS galaxies with Galaxy Zoo

St. Andrews: Summer 2014

Supervisor: Dr. Kate Rowlands
An IRAM molecular line survey of NGC 5719

Supervision and Teaching

Supervision

Summer Student: Chloe James-Turner, co-supervised with Roger Davies.
Galaxy Kinematics in the densest environments
July-August 2018

Teaching

St Catherine's College, Oxford: Second year mathematical methods for Physicists.
2016-2018

Undergraduate Lab Demonstrator: Astrophysics computing lab.
2017-2018

UK Astronomy Olympiad Lecturer: Galaxies course
2017-2018

Skills

Computing

Python, Bash scripting, Linux/UNIX operating systems
High performance computing on parallelised hardware using MPI
Version control and collaborative software development using Git and Github
Experience with a python data analysis pipeline (numpy, scipy, matplotlib, probablistic programming tools) and basic machine learning workflow (Tensorflow, scikit-learn, Keras)
Education

New College, University of Oxford

MPhys Physics: First Class honours
2012: College Exhibition awarded for exam performance (£300)
2013-2015: College Scholarship awarded for exam performance (£300 p.a.)

Southend High School for Boys

A Levels: A* in Further Maths, Physics, General Studies; A in Maths, Chemistry
GCSEs: 11 A*, 1 A

Peer Reviewed Publications
  • The stellar population and initial mass function of NGC 1399 with MUSE


    Vaughan, Sam P.; Davies, Roger L.; Zieleniewski, Simon; Houghton, Ryan C. W.
    2018: ADS
  • Radial measurements of IMF-sensitive absorption features in two massive ETGs


    Vaughan, Sam P.; Davies, Roger L.; Zieleniewski, Simon; Houghton, Ryan C. W.
    2018: ADS
  • SDSS-IV MaNGA: The Spatially Resolved Stellar Initial Mass Function in 400 Early-Type Galaxies


    Parikh, Taniya; Thomas, Daniel; Maraston, Claudia; Westfall, Kyle B.; Goddard, Daniel; Lian, Jianhui; Meneses-Goytia, Sofia; Jones, Amy; Vaughan, Sam; Andrews, Brett H.; Bershady, Matthew; Bizyaev, Dmitry; Brinkmann, Jonathan; Brownstein, Joel R.; Bundy, Kevin; Drory, Niv; Emsellem, Eric; Law, David R.; Newman, Jeffrey A.; Roman-Lopes, Alexandre Wake, David; Yan, Renbin; Zheng, Zheng
    2018: ADS
  • Radial gradients in initial mass function sensitive absorption features in the Coma brightest cluster galaxies


    Zieleniewski, Simon; Houghton, Ryan C. W.; Thatte, Niranjan; Davies, Roger L.; Vaughan, Sam P
    2017: ADS
  • Radio Galaxy Zoo: discovery of a poor cluster through a giant wide-angle tail radio galaxy


    Banfield, J. K.; Andernach, H.; Kapińska, A. D.; Rudnick, L.; Hardcastle, M. J.; Cotter, G.; Vaughan, S.; Jones, T. W.; Heywood, I.; Wing, J. D.; Wong, O. I.; Matorny, T.; Terentev, I. A.; López-Sánchez, Á. R.; Norris, R. P.; Seymour, N.; Shabala, S. S.; Willett, K. W.
    2016: ADS
Invited referee for the Astrophysical Journal
Selected Presentations and Talks
  • The Initial Mass Function of Early Type Galaxies


    Oxford Galaxy Evolution Seminar (1hr)
    June 2018
  • Radial IMF meausurements in NGC 1399


    Royal Astronomical Society specialist discussion meeting
    December 2017
  • The IMF and stellar populations of early-type galaxies


    "Thirty Minute Talk" series at ESO Vitacura, Santiago
    July 2017
  • MUSEings on the IMF in NGC1399


    National Astronomy Meeting, Hull
    July 2017
  • The Iron Hydride Molecule in Early Type Galaxies


    The Universal Problem of the Non-Universal IMF: Lorentz Centre, Leiden
    December 2016
  • The IMF in two nearby Massive Galaxies


    National Astronomy Meeting, Nottingham
    July 2016
References
Available on request