@filmfacts@social.tchncs.de2026-09-06 16:16:57
Liebe #CDU - ja, damit sind alle gemeint - das Ergebnis der #Landtagswahl #SachsenAnhalt ist hauptsächlich euer Verdienst. Und der Medien, die euren Speichel lecken und die ihr als Sprachrohr …
@arXiv_astrophCO_bot@mastoxiv.page2026-08-06 07:52:32
Non-Thermal Pressure due to Gas Motions in the Intracluster Medium: Confronting XRISM/Resolve with TNG-Cluster Simulations
Erwin T. Lau, Naomi Ota, Daisuke Nagai
https://arxiv.org/abs/2608.04757 https://arxiv.org/pdf/2608.04757 https://arxiv.org/html/2608.04757
arXiv:2608.04757v1 Announce Type: new
Abstract: Intracluster medium (ICM) gas motions probe cluster assembly, feedback, and non-thermal pressure support, but recent XRISM observations reveal velocity dispersions and non-thermal pressure fractions systematically lower than simulations predict, with extreme systems such as Abell 2029 falling below nearly all simulated clusters. Using the TNG-Cluster simulations, we show that the non-thermal pressure fraction depends sensitively on cool-core state and formation history, and provide a two-scale fitting function capturing both the inner cool-core suppression and outer rise of the radial profile. By forward-modeling mock XRISM observations and comparing them with both projected and intrinsic three-dimensional quantities, we find that azimuthal variations and projection effects contribute to the deficit in the observed velocity dispersion and non-thermal pressure fraction. This bias increases with radius and partially offsets the intrinsic outward rise in the true three-dimensional non-thermal pressure fraction. However, these effects cannot explain the extremely low values of the non-thermal pressure fraction observed in Abell 2029, which fall below approximately the 0th - 6th percentiles of the simulated cool-core cluster distribution at every measured radius under both the turbulence-only and turbulence-plus-bulk definitions. The remaining tension points to rare dynamical conditions or missing physics affecting the amplitude of gas motions in current ICM models.
toXiv_bot_toot
@heiseonline@social.heise.de2026-08-14 08:47:03
@kexpmusicbot@mastodonapp.uk2026-10-03 22:41:44
@ulfhenrich@mastodon.social2026-08-07 16:33:25
Mit dieser Yacht reiste Wilhelm II im Prinzip in jedem Sommer zur Beruhigung seines Gemüts nach Norwegen. Weil er so aufbrausend und unbeherrscht sein konnte, bestand das Offizierskorps an Bord überwiegend aus Altgedienten und ihm Vertrauten, die seine Art besser einschätzen und verdauen konnten. Gustav von Hahnke aber, Spross einer Familie mit Generälen und hohen Regierungsbeamten, war relativ jung und schlimmer, wohl ebenfalls leicht zu reizen.
3/7
@kexpmusicbot@mastodonapp.uk2026-10-03 23:34:47
🇺🇦 #NowPlaying on KEXP's #VarietyMix
Quindon Tarver:
🎵 Everybody's Free (To Wear Sunscreen) [Edit]
#QuindonTarver
https://spurz.bandcamp.com/track/quindon-tarver-everybody-nobody-is-free-spurz-civil-unrest-mix
@kexpmusicbot@mastodonapp.uk2026-08-04 07:03:25
🇺🇦 #NowPlaying on KEXP's #VarietyMix
Beach House:
🎵 Superstar
#BeachHouse
https://beachhouse.bandcamp.com/track/superstar
https://open.spotify.com/track/44obpoVitShBIkr4e9N5W8
@kexpmusicbot@mastodonapp.uk2026-07-12 09:26:56
🇺🇦 #NowPlaying on KEXP's #VarietyMix
Superchunk:
🎵 The First Part
#Superchunk
https://superchunk.bandcamp.com/track/the-first-part-2019-acoustic
https://open.spotify.com/track/4W9q5D44hHQEpzdGNEqNza
@kexpmusicbot@mastodonapp.uk2026-07-10 05:16:55
🇺🇦 #NowPlaying on KEXP's #VarietyMix
sparklmami:
🎵 fajas
#sparklmami
https://sparklmami.bandcamp.com/track/fajas
https://open.spotify.com/track/1h9YFTmgZ6Tj5BVDS1Pvuz
@kexpmusicbot@mastodonapp.uk2026-07-16 10:36:08
🇺🇦 #NowPlaying on KEXP's #VarietyMix
sparklmami:
🎵 vaga
#sparklmami
https://open.spotify.com/track/5OlKT6FbbtZFtgDxdwdG7x