The excellent press release by ESA regarding our latest work and the first unambiguous detection of the missing baryons and warm-hot intergalactic medium in a single filament!
20.06.2025 07:01 — 👍 2 🔁 0 💬 0 📌 0
Astronomers analyse huge, hot filament of missing normal matter
NOVA press release: Astronomers analyse huge, hot filament of missing normal matter
www.astronomie.nl/nieuws/en/as...
Article by Migkas et al. www.aanda.org/10.1051/0004...
19.06.2025 12:09 — 👍 1 🔁 1 💬 0 📌 0
Featured image: X-ray emitting filament connecting galaxy cluster (Migkas, K., et al., 2025, A&A, 698, A270)
www.aanda.org/component/is...
19.06.2025 12:21 — 👍 1 🔁 1 💬 0 📌 0
The cosmic filament is 7.2 Mpc long, exhibits ~20% excess emission compared to the background, has a temperature of ~1 keV, gas particle density of ~10^-5/cm^3, and a baryon overdensity of ~35, making it the first pristine single filament ever detected in Xrays!
19.06.2025 08:38 — 👍 1 🔁 0 💬 1 📌 0
We apply a novel method to isolate the missing baryons/WHIM emission from surrounding clusters and X-ray bright black holes thanks to Suzaku's sensitivity to diffuse, faint sources and XMM's power for studying black hole emission. Using X-ray spectroscopy, we find:
19.06.2025 08:37 — 👍 0 🔁 0 💬 1 📌 0
Delighted to share that I got yet another research grant from @unileiden.bsky.social and the Fonds Rijke-Hamaker fund! 🥳 This grant will support my analysis of new X-ray data of galaxy clusters that will eventually help us further refine our understanding of the uniformity of cosmic expansion!
29.05.2025 09:47 — 👍 1 🔁 0 💬 0 📌 0
Center for Scientific Workshops in All Disciplines - Cosmology at the Crossroads: Galaxy Clusters in the Era of Large Surveys
🚀 Exciting news! Our proposal for the Lorentz Workshop, focusing on Cosmology with Galaxy Clusters is approved for 8–12 Dec 2025 🎉
@lorentzcenter.bsky.social , @unileiden.bsky.social
We'll bring together cluster enthusiasts and dive into the latest in cluster cosmology! tinyurl.com/lorentzclust...
15.05.2025 10:39 — 👍 1 🔁 0 💬 0 📌 0
Three NWO Open Competition grants for Leiden scientists
Smart drug carriers, uneven cosmic expansion, and solar energy storage in molecules. These are the topics of three newly awarded NWO-XS grants to researchers at the Faculty of Science.
(My first post) I'm thrilled to receive an NWO Open Competition grant to test the uniformity of cosmic expansion at local and distant cosmic scales, using eROSITA and @esa.int XMM-Newton data of X-ray galaxy clusters! This means I get to stay longer at Leiden Observatory 🥳 tinyurl.com/NWOgrant
14.05.2025 19:47 — 👍 2 🔁 1 💬 0 📌 0
Astronomy & Astrophysics is an international journal publishing papers on the latest findings from the astronomy and astrophysics community
https://www.aanda.org/
Astrophysicist studying how supermassive black holes affect galaxies (s/h). I get overly enthusiastic about space (and cats) on YouTube: http://www.youtube.com/drbecky
Theoretical astrophysicist specializing in the Universe and all that surrounds it. Based in Ireland. Personal account. Call me old-fashioned but I don't like fascists. He/him/his.
Blog: telescoper.blog
Astronomer Royal for Scotland, Professor of Astrophysics, Edinburgh University. Director of the German Centre for Cosmological Lensing, RUB. #LongCovid (She/her)
Excellent Research in Astronomy and Astrophysics across wavelengths from (sub-)millimeter and infared all the way to X-ray and gamma-ray. Posts by Press Office.
https://www.mpe.mpg.de/impressum
Research software engineer - SRON Space - Astrophysics - Open Science - Photography
Astrophysicist, frisbee player, excited about everything.
Cosmologist working for CNRS/IN2P3 based at Laboratoire Univers et Particules de Montpellier.
Athena Community Office official account.
The largest X-ray observatory ever built, Athena will investigate some of the hottest and most energetic phenomena in the Universe with spatially-resolved X-ray spectroscopy & deep wide-field X-ray spectra imaging
Lecturer in numerical cosmo @ LION+STRW Leiden University. Lead dev. of @swiftsimulation.bsky.social astro and cosmology code. #HPC. Creator of fake universes; all including cheese. 🇨🇭
www.matthieuschaller.com
Cosmology, large scale structure, the early universe.
How researchers communicate, to each other and to the world.
http://youtube.com/CosmologyTalks
https://sharingresearch.com/
Associate Professor @UCSanDiego, particle theory and cosmology
Assistant Professor of Physics at Duke. Cosmology and astrophysics with ACT, CCAT, CMB-S4 and the Simons Observatory.
Author of Meet the Universe books, MIT Kids Press: “I’m a Photon” out May 2025!
Cornell alum x3 🐻 Often outside 🏃♀️🚵🏻♀️🥾
Professor at Case Western Reserve University. Astronomer working on galaxies, cosmology, and the dark matter problem.
Read about them at https://tritonstation.com/
A Nature journal dedicated to presenting the very best research across the disciplines of astronomy, astrophysics, cosmology and planetary science.📡
www.nature.com/natastron
[bridged from https://darkenergysurvey.org/ on the web: https://fed.brid.gy/web/darkenergysurvey.org ]
The DESI Survey will measure the properties of Dark Energy using a survey of 30+ million galaxy redshifts.
Postdoc in theoretical cosmology at Kavli-IPMU, Japan. Emmy Noether Fellow at Perimeter Institute. I work with early universe cosmology, primordial gravitational waves, EFT of gravity, dark energy and dark matter. Happy to answer questions if I can!
Ph.D | Trini 🇹🇹 astrophysicist & cosmologist @Princeton ✨ very into plants, the ocean & our Universe 🔭
A 10-meter diameter sub-mm wavelength telescope observing the cosmic microwave background from the South Pole, Antarctica.
