Hubble Ultra Deep Field | NASA, ESA, and F. Summers
I am a Postdoc based at the University of Massachusetts Amherst in Kate Whitaker’s Group. I received my PhD in 2022 from the Cosmic Dawn Center advised by Sune Toft, and before that my Masters degree in 2018 from the University of St Andrews advised by Vivienne Wild. My research focuses on the stellar mass assembly of galaxiesand star-formation cessation in the early universe through direct observation with telescopes from both space and the ground. I am a core member of several collaborations including the Cosmic Dawn Survey (DAWN), Cosmic Evolution Survey (COSMOS), UNCOVER, as well as the Euclid Consortium.
I have held internship or visiting positions at the California Institute of Technology, the University of Hawaii, the Max-Planck Institute for Astronomy, Leiden Observatory, and the Maria Mitchell Observatory. I also led the creation of the spectroscopy database AVSpec for the American Association of Variable Star Observers as a Mayall Fellow.
Beyond academia, I am a frequent contributor to popular science publications including the paper digest Astrobites, and have been a long-time volunteer at public observatories.
Download my CV.
PhD in Astrophysics, 2022
University of Copenhagen
MPhys in Physics with Astrophysics, 2018
University of St Andrews
An approved Cycle 1 JWST program to investigate five remarkanly luminous galaxies at z~9
A near-infrared selected catalog of 1.7 million galaxies with precise photometric redshifts
We employ t-distributed Stochastic Neighborhood Embedding (t-SNE) to tackle this outstanding problem in galaxy evolution
MPhys Thesis | We use SDSS-MaNGA integral field spectroscopy to investigate a sample of rare post-starbust galaxies
We construct and model the Stellar Mass and Mass Density Functions from the COSMOS2020 catalog
We use ESO’s VLT telescope to disect NGC 7252 with spatially resolved spectroscopy
Can machine learning help identify stars in galaxy catalogs?
We use detailed multi-wavelength Hubble imaging to learn about the history and fate of a peculiar galaxy
Robust derivation of Dn4000 and H-delta indices using Principal Component Analysis
We use Hubble Grism Spectroscopy from 3D-HST to identify 29 candidates at z>6
Reproducible and robust profile-fitting photometry powered by The Tractor
Using the COSMOS2020 catalog to identify the most massive galaxies at 3<z<6
Using variability to determine the dust content and test models of the intrinsic spectral index of quasar variations
Exploring six massive galaxy clusters to investigate dark matter, galaxy evolution, and the first galaxies
A 200 hour JWST Cycle 1 Treasury program with NIRCam and MIRI to map the distant universe
The widest multi-wavelength galaxy survey with deep near-infrared coverage and ancillary observations
Providing ugrizy photometry over 20deg2 of Euclid Deep Fields
Headlines based on Weaver et al. 2018
Appears on: ESO | Sky at Night Magazine | SCI NEWS
30 Talks & 8 Posters since 2015
Total Refereed/Submitted: 38
As First Author: 5
I began my career in astronomy as an assistant to a planetarium lecturer. Giving back to the community is a part of who I am.
AVSpec is the first spectral database of the American Association of Variable Star Observers.
Astronomy on Tap – Copenhagen is a monthly event held at Huset, organised by astronomers in Copenhagen.
Crisp evening air. Clear skies. Maybe a telescope. Nothing refreshes me more than a night under the stars.
I’ve had articles published in a number of online platforms, including Astrobites.
An (incomplete) collection of lectures that I’ve given, organized by topic.
One of the largest student-led astronomy societies world-wide.
A collection of images taken at either
16" SCT @ St Andrews, UK
2m NOT @ La Palma, ES