Hi! I'm Rowina Nathan

I'm an astrophysicist (in prep).

About Rowina

I am a PhD Candidate at Monash University researching pulsar timing and multimessenger astronomy. I am a member of OzGrav, the LIGO Scientific Collaboration, and the Parkes Pulsar Timing Array (PPTA). Outside of my research, I love doing public outreach and inspiring others to pursue STEM.

Resume

Education

Astrophysics PhD Candidate, Monash University
2022 - 2025
My research is mainly focused on neutron stars, specifically p ulsar timing. My main project is on improving pulsar timing by characterising pulse shape variation, which I have continued from my honours research. This method can characterise pulsar shape changes as well as improve timing. I hope to use this method to improve our sensitivity to the gravitational wave background. I am simultaneously assisting with the noise modelling for the third data release for the Parkes Pulsar Timing Array.  I am also working on a multimessenger gravitational wave project looking at ​coincident detection ​statistics for compact mergers with electromagnetic counterparts. Alongside my research, I am ​involved in many outreach activities and mentoring.

Honours in Astrophysics, Monash University 

2021 
2021 First-Class Honours
2021 Recipient of the J.L Williams Scholarship
2021 Faculty of Science Dean’s List Award
2022 Rhodes Scholarship Shortlist 

The honours degree consists of two components, coursework and a research project. For my coursework I have undertaken units in computational astrophysics, stellar astrophysics, advanced observational astronomy, general relativity, advanced data analysis and machine learning. My research was validating a new dynamic pulsar timing method on simulated pulsar data. I graduated with first-class honours.

Bachelor of Science and Bachelor of Commerce, Monash University 
2017 — 2020 
Majors: Astrophysics and Business Analytics, Minor: Mathematics 
Weighted Average Mark: High Distinction 

As part of my degree, I worked on cutting-edge research projects with professional astrophysicists, analysing telescope data with innovative techniques including neural networks, and other machine learning techniques. My research is outlined in more detail below. During my studies I also completed courses in machine learning, time series analysis, forecasting, Bayesian statistics, data visualisation, databases and computing. As part of a group project for Business Analytics my group created a machine learning model that was the best at predicting the outcome of a point in tennis. Our model correctly predicted 92.86% of point outcomes, which was higher than the other 28 models submitted. 

Year 12 Graduate, Shelford Girls' Grammar  
2016 
ATAR: 96.65 

Employment

Teaching Associate at Monash University
2022​ — Present
I am a teaching associate for several units in the school of physics and astronomy. I run workshops and tutorials, guiding students through the applied portion of their subject and answering questions. I find this position rewarding, building relationships with students and watching them succeed brings me great joy. I have experience teaching three units: 3rd-year astrophysics - relativity and cosmology, 1st-year astronomy - earth to cosmos and 1st-year astronomy - astrobiology.

Head Teacher at Code Camp 
2018 — 2022       
I taught coding to children aged 6 to 13 in a classroom setting, managing conflict, breaking down difficult concepts and helping them find a passion for STEM subjects from an early age.  

Private Mathematics and Science  Tutor 
2017 — 2022       
I helped  students from years 6 to 12 to keep up in the classroom at school by explaining mathematics to them in a fun and engaging way. 

Finance and Performance Intern at Deloitte Australia 
2019
I assisted on a project implementing Workday Financials at RMIT. I was able to understand the needs of the client, adapt to new software quickly and create value adds for the client such as a self-checking financial reports and quick-view dashboards.  

Guest Services at Kandersteg International Scout Center, Switzerland 
2018 — 2020
I worked with 35 people from over 20 different nationalities. Living in the remote Swiss Alps I managed guest needs in an environment with limited resources. Read about it here. 

Tutor at Kids Like Us 
2017
I worked with children with a range of learning difficulties to help them to implement their ideas for games a program in Scratch.  

Non-​academic work

Education and Public Outreach Coordinator at OzGrav, Monash University
2022​ — Present
Mentor at Women in Astrophysics Mentoring Program, Monash University 
2019 — Present  
Treasurer and Secretary at Melbourne Region Rovers
2021 — 2022
Daytrips Coordinator at Monash University Snowsports Club 
2021 
Secretary at Everest Le Page Rover Crew, Beaumaris 
2021 
Chairperson at Everest Le Page Rover Crew, Beaumaris 
2020 

Nathan, R. S., Miles, M. T., Ashton, G., Lasky, P. D., Thrane, E., Reardon, D. J., ... & Cameron, A. D. (2023). Improving pulsar-timing solutions through dynamic pulse fitting. Monthly Notices of the Royal Astronomical Society523(3), 4405-4412.

Reardon, D. J., Zic, A., Shannon, R. M., Di Marco, V., Hobbs, G. B., Kapur, A., ... & Zhu, X. J. (2023). The gravitational-wave background null hypothesis: Characterizing noise in millisecond pulsar arrival times with the Parkes Pulsar Timing Array. The Astrophysical Journal Letters951(1), L7.

Reardon, D. J., Zic, A., Shannon, R. M., Hobbs, G. B., Bailes, M., Di Marco, V., ... & Zhu, X. J. (2023). Search for an isotropic gravitational-wave background with the Parkes Pulsar Timing Array. The Astrophysical Journal Letters951(1), L6.

Zic, A., Reardon, D. J., Kapur, A., Hobbs, G., Mandow, R., Curyło, M., ... & Zhu, X. J. (2023). The Parkes Pulsar Timing Array Third Data Release. Publications of the Astronomical Society of Australia, 40, e049.

Sarin, N., Lasky, P. D., & Nathan, R. S. (2023). Missed opportunities: GRB 211211A and the case for continual gravitational-wave coverage with a single observatory. Monthly Notices of the Royal Astronomical Society518(4), 5483-5489.

Ashton, G., Lasky, P. D., Nathan, R., & Palfreyman, J. (2020). Flickering of the Vela pulsar during its 2016 glitch. arXiv preprint arXiv:2011.07927.

Ackley, K., Adya, V. B., Agrawal, P., Altin, P., Ashton, G., Bailes, M., ... & Ward, K. (2020). Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network. Publications of the Astronomical Society of Australia37, e047.

Resources

Getting started with PSRchive

Producing time of arrival estimates from archive files

Making a website (for free)

How I made this website and others with free domain hosting from GitHub.

Handy terminal commands

Bash commands and scripting for efficient computing

Media and Outreach

Portfolio

I have a passion for graphic and web design. See some of my work below.