Image credit: Zeidler et al. 2018

About Me

I am a postdoctoral Research Fellow in the Centre for Astrophysics Research at the University of Hertfordshire. My research interests are in computational star formation, currently focusing on simulating the formation of Young Massive Clusters. My PhD focused on data analysis, finding statistical measures of the structure of molecular clouds and star clusters.

Seminar: Star Formation (Royal Holloway University of London, May 2020)

The slides of this talk can be downloaded by clicking the image.

Abstract: The formation of stars takes us from the pristine matter of the universe to the primordial soup of life; from the most diffuse atoms drifting in space to black holes; from stable clouds drifting for millions of years to explosions and chemical reactions taking seconds. I will give an overview of our current understanding of the star formation process, and explain why this field is critical to our understanding of the Universe and our place in it. I will explain the hot topics in star formation studies and the current challenges we face. I hope to highlight the links between astronomy and other fields of physical science, to encourage us to share knowledge and techniques between disciplines.

Poster: Simulating Young Massive Clusters (Crete III, September 2019)

If you are looking for a copy of my poster presented at Crete III , please download it by clicking the image.

Simulations

Uniform spherical cloud of 10,000 solar masses within 3 pc. In only 0.4 Myr this has formed more than 100 sinks particles, representing individual stars. The density threshold for sink particle creation is 10^-10.

Same initial conditions as above but with a sink creation density of 10^-13.

Refereed publications

See all my work on ADS.

Outreach

I have undertaken various kinds of oureach and public engagement activity, working with different audiences and through different media.

Public talks

  • Star formation
    45 minute talk at Bayfordbury Observatory open day, January 2020
  • Tour of the Solar System
    15 minute planetarium show given at WOMAD festival, 2019
  • How a star is born
    30 minute talk to science-engaged public at Hemel Hempstead Old Town Hall as part of Space Week. (A PDF of this talk can be viewed here.)
  • How a star is born
    40 minute talk to school children aged 11-16 from East London Science School as part of Enrichment Fortnight. (See link above.)

Writing

I began writing science articles at 16 for my local Institute of Physics Branch Newsletter, and wrote a blog during my PhD to practice short-form writing. I have taken courses through the IoP on explaining complex ideas and have written articles explaining exciting new ddiscoveries in many fields of astronomy for amateur enthusiasts, published in Popular Astronomy, the members magazine for the UK's amateur astronomy society.

Other

I have also:

  • Given a keynote presentation on the employability skills gained during an Astronomy degree to Undergraduate students.
  • Supervised an international group of 16-18 year olds at an ESO Winter Astronomy Camp in the Italian Alps.
  • Demonstrated observational techniques with an IR camera to the public at Cardiff Museum Astronomy event.
  • Spoken to Rainbow and Brownies groups (girls aged 5-7 and 7-9, respectively) as part of "Girls can do Anything" career event.
  • Organised a public protest in Cardiff as part of the worldwide March for Science movement, including liaising with police and Senedd security, publicising the event through social media, and setting up a concurrent STEM outreach fair at Techniquest Science Discovery Centre.

Contact Me

Dr. Sarah Jaffa

Centre for Astrophysics Research
University of Hertfordshire
College Lane
Hatfield
Hertfordshire
UK
AL10 9AA

Email: s.jaffa at herts.ac.uk