Welcome to all our new staff members of the Cosmic Dawn Center!
Francesco M. Valentino (Senior Researcher, DTU)
Kei Ito (Fellow, DTU)
Clara Pollock (PhD, NBI)
Joris Witstok (Fellow, NBI)
Pengpei Zhu (PhD, DTU)
Aayush Arya (PhD, NBI)
Zihao Li (PhD, NBI)
Giorgos Nikopoulos (PhD, NBI)
Scott Barrow (Fulbright, NBI)
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Join in on a society or a sports club at DTU or UCPH:
♦ Link for the DTU Sport website is here: Forsiden (dtusport.dk)
♦ Link for the UCPH Sport website: KU Studenteridræt | Volleyball, Svømning, Klatring, Yoga, Dans mm (kustudenteridraet.dk)
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23 August 2024 we said farewell to our cherished colleague Charles Steinhardt, who is leaving for a faculty position at the Department of Physics and Astronomy, University of Missouri. Charles has been a core member of DAWN from the beginning. In addition to his impressive scientific productivity, Charles has also been monumental in attracting and mentoring students; mentorships that were seen more as collaborations and often resulting in peer-reviewed publications.
We sent Charles off with cake, as a thank you for all the cake he has brought to DAWN throughout the years, as well as a few things for him not to forget Denmark.
Good luck in Missouri, Charles!
Hey, I'm Kimi Cardoso Kreilgaard from Denmark (and Brazil).
I joined DAWN as a master’s student exploring how we can infer measures of the escape fraction of ionising photons from galaxies (the topic of my paper). In December, I started as a PhD student in Charlotte Mason's group and my research will focus on using JWST data to investigate how we can better measure the high redshift galaxy population and explore different hypotheses for why star-formation may be different in the early Universe
Fun Fact: My first (and only) pet is a little green parrot called Polly. Like me, he can be a bit grumpy in the morning and likes to scream for attention - unfortunately, this means he is not allowed in my apartment in Copenhagen. We still keep in touch though: we Facetime every Sunday (with the technical assistance of my mom who he lives with in Jutland for now). Luckily, his kind can live up to 80 years and he is still a teenager, so I'm sure one day he can move in with me again and keep me entertained with his constant singing, crying, laughing and the occasional cursing.
The research presented in the paper began with my master's project which I also did with Charlotte. I did my masters in computational physics, so my motivation for the project mostly arose from my interest in the computational methods we were to employ. I had completed a few courses in statistics at the time and quite enjoyed it. Thus I was interested in doing a project where I could play around more with hierarchical Bayesian inference and how to implement it effectively. During the project, I rediscovered my joy for astrophysics and I am delighted to now work in this field and learn more about the Universe.
The escape fraction of ionising photons from galaxies is a key parameter for understanding how intergalactic hydrogen became reionised, but it has mostly been estimated for single galaxies or stacks of multiple galaxies. In this paper, we presented the first inference of the *distribution* of the ionising photon escape fraction, and we found that an exponentially decaying model is the best description of our data. This indicates that most galaxies in our sample exhibit very low escape fractions while predicting substantial ionising photon leakage for only a few galaxies, implying a range of optical depths in the ISM and/or time variability in ionising photon escape. The distribution of the escape fraction can be a vital test for simulations in understanding ionising photon leakage and is an important step to gain a complete picture of reionisation.
On Saturday, 20 July 2024, Simone Vejlgaard Holm gave birth to a beautiful little boy named Flemming!
We are looking forward to meeting him when the time is ready and we send our biggest congratulations to both Simone and Søren ♥
OPPORTUNITIES & CALLS
| ♦ AGN Feedback and Star Formation Across Cosmic Scales and Time, Italy | 02-06 Sep | Read more here |
| ♦ Course: Introductory course to collaborative Horizon Europe Projects | 26 Sep | Read more here |
| ♦ Workshop: ‘’Kochel CLAW" in Schloss Aspenstein, Kochelsee, Germany | 30 Sep - 04 Oct | Read more here |
| ♦ UCPH Course: "Boost your research career and network with social media" | 01 Nov | Link is here |
| ♦ UCPH Conference "Make A Difference Conference - skills in digital learning technologies" | 12 Nov | Link is here |
| ♦ Horizon Europe - Marie Curie Postdoctoral Fellowships (PF) | 11 Sep | DTU link | UCPH link |
| ♦ DFF Independent Research Fund Denmark: Project 2 | 08 Oct | DTU link | UCPH link |
| ♦ DFF Independent Research Fund Denmark: Sapere Aude | 10 Oct | DTU link | UCPH link |
| ♦ EU Horizon Europe - ERC Starting Grant (Preliminary call) | 15 Oct | DTU link | UCPH link |
| ♦ EU Horizon Europe - ERC Synergy Grant (Preliminary call) | 06 Nov | DTU link | UCPH link |
| ♦ Horizon Europe - Marie Sklodowska-Curie Doctoral Networks - preliminary call | 27 Nov | DTU link | UCPH link |
| ♦ EU Horizon Europe - ERC Consolidator Grant (Preliminary call) | 14 Jan | DTU link | UCPH link |
| ♦ DFF Independent Research Fund Denmark: Project 1 | 29 Apr | DTU link | UCPH link |
Danish Traditions & Culture
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