Kostas Migkas
@kmigkas.bsky.social
Oort fellow at Leiden Observatory. Working on X-ray galaxy clusters and observational cosmology. Dad and husband.
Galaxy clusters and cosmology are coming together in Leiden and our upcoming Lorentz Workshop! Contact us if wishing to join!
Cosmology at the Crossroads: Galaxy Clusters in the Era of Large Surveys
📅 8–12 Dec 2025
👉 www.lorentzcenter.nl/cosmology-at...
#Astrophysics #Cosmology #GalaxyClusters
Cosmology at the Crossroads: Galaxy Clusters in the Era of Large Surveys
📅 8–12 Dec 2025
👉 www.lorentzcenter.nl/cosmology-at...
#Astrophysics #Cosmology #GalaxyClusters
November 4, 2025 at 6:05 PM
Galaxy clusters and cosmology are coming together in Leiden and our upcoming Lorentz Workshop! Contact us if wishing to join!
Cosmology at the Crossroads: Galaxy Clusters in the Era of Large Surveys
📅 8–12 Dec 2025
👉 www.lorentzcenter.nl/cosmology-at...
#Astrophysics #Cosmology #GalaxyClusters
Cosmology at the Crossroads: Galaxy Clusters in the Era of Large Surveys
📅 8–12 Dec 2025
👉 www.lorentzcenter.nl/cosmology-at...
#Astrophysics #Cosmology #GalaxyClusters
Reposted by Kostas Migkas
Another clue about the whereabouts of the missing matter in the Universe has just emerged from amid the largest local cosmic structure. X-ray observations have revealed a massive filament of hot gas in the enormous, 8,000-galaxy strong Shapley Supercluster. www.aanda.org/articles/aa/...
Detection of pure warm-hot intergalactic medium emission from a 7.2 Mpc long filament in the Shapley supercluster using X-ray spectroscopy | Astronomy & Astrophysics (A&A)Mendeley
Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics
www.aanda.org
June 20, 2025 at 2:53 AM
Another clue about the whereabouts of the missing matter in the Universe has just emerged from amid the largest local cosmic structure. X-ray observations have revealed a massive filament of hot gas in the enormous, 8,000-galaxy strong Shapley Supercluster. www.aanda.org/articles/aa/...
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!
For decades, astronomers have been searching for the missing 30–40% of 'normal' visible matter that models tell us should exist in the Universe.
But it's not in stars, galaxies, planets or pet cats.
Finally, they've found it 👉 www.esa.int/Science_Expl...
🔭🧪
#cosmology
#extragalactic
#highenergyastro
But it's not in stars, galaxies, planets or pet cats.
Finally, they've found it 👉 www.esa.int/Science_Expl...
🔭🧪
#cosmology
#extragalactic
#highenergyastro
June 20, 2025 at 7:01 AM
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!
Reposted by Kostas Migkas
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...
www.astronomie.nl/nieuws/en/as...
Article by Migkas et al. www.aanda.org/10.1051/0004...
Astronomers analyse huge, hot filament of missing normal matter
www.astronomie.nl
June 19, 2025 at 12:09 PM
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...
www.astronomie.nl/nieuws/en/as...
Article by Migkas et al. www.aanda.org/10.1051/0004...
Reposted by Kostas Migkas
Featured image: X-ray emitting filament connecting galaxy cluster (Migkas, K., et al., 2025, A&A, 698, A270)
www.aanda.org/component/is...
www.aanda.org/component/is...
June 19, 2025 at 12:21 PM
Featured image: X-ray emitting filament connecting galaxy cluster (Migkas, K., et al., 2025, A&A, 698, A270)
www.aanda.org/component/is...
www.aanda.org/component/is...
📢Paper and press releases day! We report the first-ever unambiguous detection of WHIM/missing baryons in a single cosmic filament using @ESA_XMM
and @JAXA_en
Suzaku data! It's the first time observations agree with LCDM simulations for the nature of WHIM www.aanda.org/articles/aa/...
and @JAXA_en
Suzaku data! It's the first time observations agree with LCDM simulations for the nature of WHIM www.aanda.org/articles/aa/...
Detection of pure warm-hot intergalactic medium emission from a 7.2 Mpc long filament in the Shapley supercluster using X-ray spectroscopy | Astronomy & Astrophysics (A&A)Mendeley
Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics
www.aanda.org
June 19, 2025 at 8:33 AM
📢Paper and press releases day! We report the first-ever unambiguous detection of WHIM/missing baryons in a single cosmic filament using @ESA_XMM
and @JAXA_en
Suzaku data! It's the first time observations agree with LCDM simulations for the nature of WHIM www.aanda.org/articles/aa/...
and @JAXA_en
Suzaku data! It's the first time observations agree with LCDM simulations for the nature of WHIM www.aanda.org/articles/aa/...
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!
May 29, 2025 at 9:47 AM
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!
🚀 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...
@lorentzcenter.bsky.social , @unileiden.bsky.social
We'll bring together cluster enthusiasts and dive into the latest in cluster cosmology! tinyurl.com/lorentzclust...
Center for Scientific Workshops in All Disciplines - Cosmology at the Crossroads: Galaxy Clusters in the Era of Large Surveys
www.lorentzcenter.nl
May 15, 2025 at 10:39 AM
🚀 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...
@lorentzcenter.bsky.social , @unileiden.bsky.social
We'll bring together cluster enthusiasts and dive into the latest in cluster cosmology! tinyurl.com/lorentzclust...
(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
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.
www.universiteitleiden.nl
May 14, 2025 at 7:47 PM
(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