this morning in #astroph
"The birth of the intracluster medium: the evolution of multiphase gas
and Lyman-α haloes in a simulated z ∼ 3 protocluster" by J. Bennet et al.

https://arxiv.org/pdf/2603.16991

a nice simulated view using Arepo of how the typical thermodynamical and chemical structure of the intracluster medium is first formed around z=3, through the interplay of accretions, galaxy and AGN activity.

#astrophysics #astronomy #physics

Very cool on #astroph by @giovanni_covone and A. Balbi:

" Photosynthetic exergy I. Thermodynamic limits for habitable-zone planets"

which proposes new upper limits on
photosynthetically harvestable power for planets in the habitable-zone

https://arxiv.org/pdf/2602.20789

#astronomy #astrophysics #science

When astronomers are discovering so many things that they run out of names:
meet the "red potato" 🥔 quiescient galaxy tracing a node of the cosmic web at redshift z=3

https://arxiv.org/pdf/2601.20473
by Wang et al.
today in #astroph

#astronomy #astrophysics #science

Interesting this morning on #astroph

"MeerKAT observations of Abell 1775 and Abell 1795: the discovery of a
hadronic radio halo?" by R. van Weeren et al.
https://arxiv.org/pdf/2601.16288
I am a bit puzzled but this might be the first case in which significant secondary emission (i.e. injected by secondary relativistic electrons resulting from hadronic collisions between cosmic ray protons and thermal protons) is found in a cluster of galaxies. Cool!

#astronomy #astrophysics #science

Awesome observations of fluid instabilities in the coronal mass ejection of plasma from our star, today in #astroph

"Observation of Large-Scale Kelvin-Helmholtz Instability Wave Driven by a Coronal Mass Ejection"

by Ofman et al.

https://arxiv.org/pdf/2512.19942

That's the kind of instability that the smoke of a cigarette would undergo...except it is on the scale of A DOZEN PLANET EARTHS

#astronomy #astrophysics #science

Stunning multi-scale radio images of radio galaxy tails in cluster Abell 2255 by E. De Rubeis et al.

https://arxiv.org/pdf/2512.19471

who combined LOFAR Very Long Baseline Interferometry (LOFAR-VLBI),
the upgraded Giant Meterwave Radio Telescope (uGMRT) and the Karl G. Jansky Very Large Array (VLA).

Incredible level of details in the fine interactions between old radio plasma and the surrounding intracluster medium, shaped by dynamics and probably cosmic rays

#astroph #astronomy #science

Astronomical clickbait titles to its finest 😅

"Nova Explosions in 2040"
https://arxiv.org/abs/2512.15821

we're soo doomed!

#astronomy #astrophysics #astroph #science

To be entirely honest, after about 20 papers spamming the initial list of #astroph today all with the initial title

"Why the northern hemisphere needs a 30-40 m telescope and the science at stake: bla"

I just developed an instinctive antagonism to the idea

(but luckily for science I am not in charge of deciding)

(sorry that's what aggressive spamming does to me 🙄 . but fingers crossed!)

#astronomy #astrophysics #science

RE: https://mastodon.social/@franco_vazza/115028085743064524

This new one is a solid
10.5/10
on the Loeb scale of how much annoying an astrophysics article can be;
10/10 for the content, and with an extra 0.5 for rushing submission to the very top of todays #astroph listing, well done!!

https://arxiv.org/abs/2512.13743

#astronomy #astrophysics