2025

Cluster-seminars November 2025

cluster-seminars@mailman.strw.leidenuniv.nl

1 participants
2 discussions

Galaxy Cluster Seminar (STRW/SRON): Seminar on November 27th by Luca Di Mascolo ()
by Konstantinos Migkas 27 Nov '25

27 Nov '25

Dear all, The next STRW/SRON Galaxy Cluster Seminar is scheduled for this Thursday, November 27th, at 13:00, in the Sentinel room at SRON room. This time we have a guest, Luca Di Mascolo from the University of Groningen, who will talk about: _A resolved SZ view of the hot Universe_ The abstract of the talk can be found at the end of the email. The talk will be advertised as a Lunch Seminar as well, but please note that it will take place at SRON. As always, it will also be on zoom and the link will be shared the day before. The current schedule for the seminar can be found here: https://home.strw.leidenuniv.nl/~kmigkas/clusterseminar.html We hope to see you all there. Cheers, Kostas & Joshiwa Abstract An omnipresent feature of the "cosmic web" -- the large-scale filamentary backbone of the Universe -- is represented by a warm/hot gas component. This is a dominant component in the overall matter budget on a multi-scale realm spanning from Mpc-scale intergalactic filaments, to the intracluster medium (ICM) and the circumgalactic medium (CGM) surrounding individual galaxies. Therefore, the study of the warm/hot gas represents a powerful means for tracing the matter assembly in the Universe, its thermal history, and the intertwined evolution of galaxies clusters, and their large-scale environment. In my talk, I will discuss how advanced (sub)millimeter facilities like the Atacama Large Millimeter/Submillimeter Array (ALMA) have revolutionized our perspective on the hot and ionized Universe via the possibility of tracing the multi-faceted Sunyaev-Zeldovich (SZ) effect -- a peculiar spectral signature imprinted in the ubiquitous cosmic microwave background by the warm/hot gas within cosmic structures. Still, it is only with the unparalleled combination of sensitivity, angular resolution, and spectral coverage of the Atacama Large Aperture Submillimeter Telescope (AtLAST) that we will be able to conclusively open an SZ window on the hot Universe. The EU-funded Phase 1 Design Study for this future 50m-class facility was completed at the beginning of this year, and I will provide an overview of its main outcomes. -- Dr. Konstantinos Migkas (X-ray) Oort postdoctoral fellow Leiden Observatory, the Netherlands

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Galaxy Cluster Seminar (STRW/SRON): Seminar on November 6th by William McDonald
by Konstantinos Migkas 06 Nov '25

06 Nov '25

Dear all, The first STRW/SRON Galaxy Cluster Seminar of the new academic year is scheduled for this Thursday, November 6th, at 13:00, in the CE 0.18 room. William McDonald (STRW) will present his ongoing research titled: A short demonstration of X-ray--cross-correlations with FLAMINGO We are looking for speakers for the next seminars, particularly November 20th and for 2026. Please let us know if you would be interested in giving a talk. The seminar is a great opportunity for MSc/PhD students and postdocs to advertise their research to other cluster people in STRW/SRON beyond their group and receive valuable feedback from a wide variety of experts. The current schedule for the seminar can be found here: https://home.strw.leidenuniv.nl/~kmigkas/clusterseminar.html See you all on Thursday Cheers, Kostas -- Dr. Konstantinos Migkas (X-ray) Oort postdoctoral fellow Leiden Observatory, the Netherlands

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2025

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