The DAWN family comprises both permanent and temporary staff. At any time, some 40 local scientists and student are found at UCPH and DTU. In addition, we have around 10 affiliated scientists at various institutions around the world.
All staff and students are seen below in a random order. Use the filter buttons to look for specific groups, and click images for more details.
If you're a new DAWNer, you can check the wiki page on how to create your own profile.
John R. Weaver
Astrophysicist and science communicator
I am a PhD student working at the Cosmic Dawn Center advised by Gabriel Brammer. I currently study the formation and evolution of the most massive galaxies in the universe, using a combination of data from ground and space based telescopes across the entire electromagnetic spectrum. I received my Master’s in Astrophysics in 2020 from the University of St Andrews in Scotland, where I worked with Vivienne Wild, measuring the morphologies of low z post-starburst galaxies.
Before deciding to study galaxies, I was interested in particle and astroparticle physics, and had fantastic opportunities to work on experimental projects relating to both cosmic rays and neutrinos at Jodrell Bank Center for Astrophysics and later CERN. I’ve also been lucky enough to do both cosmology and galaxy summer research projects at the Institute of Cosmology and Gravitation and the University of Oxford.
When I’m not doing research I enjoy powerlifting, growing plants, drawing, making music, exploring Copenhagen and playing video games (but not all at the same time!). My pronouns are she/hers.
John R. Weaver
I am a third year bachelor student at the University of Copenhagen, currently writing my thesis. I am interested in condensed matter physics; specifically focussing on reflectometry of quantum dots at the moment.
This March I started as the new student helper at DAWN, and my role is primarily overseeing the websites, but I will also be helping Guarn and Helena as much as I can, with different administrative tasks.
In my free time I play disc golf and dedicate many hours to bouldering (when the halls are open that is). I’ve played the piano for many years and enjoy travelling through Europe on my bicycle.
Clara Giménez Arteaga
Kasper Elm Heintz
Marie Skłodowska-Curie Fellow
Fields of interestIn random order:
- baryon-dark matter relationship in galaxy formation
- galaxy quenching
- large-scale galaxy environment
- innovative methods for data mining and galaxy classification
- innovative methods to measure/define galaxy physical/statistical properties
Joonas Kari Markku Viuho
Associate Professor at U. Geneva
Guarn Elizabeth Nissen
Astrophysicist and science communicator
I am an astrophysicist and science communicator.
At DAWN, my tasks include communicating our science to the public, arranging workshops, coordinating other scientific activities, maintaining our website, as well as conducting my own research.
My research focuses on galaxies, in particular the light coming from processes that have to do with galaxy formation. I use computer simulations to predict and interpret "real" observations. More specifically, I use hydrodynamical simulations with (Monte Carlo) Lyman α radiative transfer.
You can find out more about me, my research, and my outreach activities on my personal website.
- Separating Gamma-Ray Bursts: Students Make Important Breakthrough
- Faith and Science: A conversation with Prof. Johan Fynbo
- Measuring the expansion of the Universe: Researchers focus on the importance of measuring velocity
- Galaxies in the Very Early Universe were Surprisingly Mature
- Understanding galaxy evolution
- Quenching by collision
- Highest detail yet observations of distant galaxy
- Two DAWNers receive prestigious grants
- Printing at NBB
- Journal Club
- Creating a new DAWN profile
- Microsoft Quarantine spam filter
- DAWN MoonWalk Challenge
- DAWN MoonWalk challenge spreadsheet
- Adding content to cosmicdawn.dk
- Danish participation in more than a third of the new James Webb Space Telescope’s initial observations
- Dansk deltagelse i mere end en tredjedel af det nye James Webb-Rumteleskops første observationer
- ALMA Discovers Rotating Infant Galaxy with Help of Natural Cosmic Telescope
- ALMA opdager roterende babygalakse ved hjælp af naturligt, kosmisk teleskop
- DAWN internal links
- Johan Fynbo receives DFF grant for research on quasars
- Johan Fynbo modtager DFF-bevilling to forskning i kvasarer
- Passwords and other security-related matters
I am a professor of Cosmology and Extragalactic Astrophysics at the Niels Bohr Institute. I received my BSc (1998), MSc (2000) and PhD (2003) degrees from the Niels Bohr Institute, under supervision of Jens Hjorth.
I spent 5 years abroad as a postdoctoral research associate at Yale University (with Pieter van Dokkum) and an independent ESO fellow at the European Southern Observatory headquarters in Germany. Since 2009 I have led a research group at the Niels Bohr Institute, funded by a Lundbeck Junior Group Leader fellowship (2009-2014) an ERC consolidator grant (2015-2020), and a DNRF center of excellence grant (2018-2024).
My research focuses on the understanding the cosmic origin and evolution of galaxies, primarily through observations with the largest ground and space-based observatories. I am part of several major international research teams, including COSMOS (member of the Scientific Steering Committee), Euclid (Co-lead of the Primeval Universe Working Group), Ultravista (core-member), Hawaii-Two-0 (CoI), Euclid/WFIRST Spitzer Legacy Survey (CoI), BUFFALO (CoI), RELICS (CoI), ALPINE (CoI).
Since 2009 I have taught the undergraduate course “Cosmology”, and supervised postdoc and student research projects on all levels (BSc, MSc, PhD).