franco_vazza

franco_vazza, 12 hours ago to Astronomy

Awesome collection of FRII radio galaxies observed with the LOFAR LOTSS DR2 survey, just the cover picture in Martin Hardcastle's talk at SPARCS.

#astronomy #astrodon

franco_vazza, 14 hours ago to Astronomy

...Think I am going to move from extragalactic to galactic modelling...the quality of these recent multi-wavelengths composition of exploding stars in the Galactic plane (this one showed by Filomena Bufano at SPARCS) is jaw dropping

(sorry I could not get the full reference to this image - probably still WISE and ASKAP)

#astronomy #astrodon

franco_vazza, 15 hours ago to Astro

This superposition of Wise (infrared) and Askap (radio) images of a crowded fields with several pulsar wind nebulae in our Galaxies, just presented at SPARCS by Sanja Lazarevic, is just 😱

#astrodon #astronomy

franco_vazza, 15 hours ago to Astro

Have you seen the Crab Nebula observed by LOFAR (including international stations, so higher resolution)?
I just did, at my SPARCS meeting:
gorgeous image by Maria Arias and collaborators:

#astrodon #astronomy

franco_vazza, 1 day ago to Astro

Couple of slides from the talk I just gave to the SPARCS XII conference in Bologna, on th theme of:
"Numerical simulations keeping up with the complexity of radio discoveries"

#astrodon #astronomy

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franco_vazza, 1 day ago to Astronomy

#astroph
Just stunning extra galactic radio astronomy, using the ASKAP radio telescope!

"ASKAP reveals the filamentary radio tail structure of the Corkscrew Galaxy "
https://arxiv.org/abs/2405.0437

by B. Koribalski et al.

#astronomy #astrodon

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franco_vazza, 2 days ago to Astro

#SimulatedUniverses
simulated simultaneous evolution of magnetic fields and cosmic rays injected by the same growing galaxies in a small cosmic volume, with a recently developed version of the ENZO code, running on Leonardo @Cineca

#astrodon #astronomy

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franco_vazza, 4 days ago to Futurology

Things you can find for dinner in Florence after a talk about the cosmic web and the human #brain
: fried brain 🧠 (of veal).

I am vegetarian so no chance, but you think my neurosurgeon colleague took?

franco_vazza, 4 days ago to Astronomy

Some picture of this cool event in Florence:
https://mastodon.social/

the first official opening to the public of the ancient villa on the hills of Florence where Galileo Galilei spent his latest years while being home imprisoned by damm Santo Uffizio, and where he wrote his latest works.
Some walls and bricks and trees might stille be the same that were around while he was 🥺

#astronomy #astrodon

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franco_vazza, 6 days ago (edited 6 days ago) to random

#academic #academicchatter
Do you also have colleagues who, when meeting external visitors, tell that "the real research" is done in their institute, and not in the neighbouring one (which happens to be yours)?

Or are you luckier, and your colleague are less pathetic and less affected by egomaniac problems...?

🙄

franco_vazza, 6 days ago to Astronomy

Tomorrow evening, quite a special event:
I will be at Villa Galilei in the hills around #Florence, where Galileo spent his latest years of home imprisonment, to speak about how the human brain and the cosmic web might look alike, through the lens of #complex_networks analysis and together with my (neurosurgeon) colleague.
Events organized by Inaf and University of Florence.
https://portalegiovani.comune.fi.it/urlnews/webzine/48720.html

#astronomy #astrodon

franco_vazza, 6 days ago (edited 6 days ago) to Astronomy

#paperday

Important work by PhD stud. Giada Pignataro at the University of Bologna, just accepted by A&A Letters:

"Abell 0399−Abell 0401 radio bridge spectral index:
the first multifrequency detection"

https://arxiv.org/abs/2405.00772 Pignataro et al. incl. @annalisa_bonafede and myself

The low frequency radio detection using #LOFAR, allows to refine our understanding of this cosmic monsters which I described already in the past (https://mastodon.social/)

#astronomy #astrodon

franco_vazza, 7 days ago to Astro

#astroph

https://arxiv.org/pdf/2405.00115 by HyeongHan K. et al.
arguing that (at least to my surprise) the Perseus cluster of galaxies has evidences of a major merger in its past, supported by numerical simulations and kinematic modelling of the gas & dark matter components.

#astrodon #astronomy

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franco_vazza, 7 days ago to Astronomy

A new recent investigationsof proto-(galaxy)clusters in latest few days on #astroph , cool topic under fast development:

https://arxiv.org/abs/2404.18991 by Baks et al. presented deep observations with NOEMA and SCUBA-2 of HerBS-70, a binary system of bright dusty star-forming galaxies, which seems to trace a proto-cluster region at z=2.3.

#astronomy #astrodon

franco_vazza, 7 days ago to Astronomy

The shocked and radio emitting cosmic web in an old simulation of mine, I am re-analysing for an observing proposal.
(one can tell it's a old simulation because the picture is in black and white 🤭 )

#SimulatedUniverses
#astronomy #astrodon

franco_vazza, 8 days ago to random

Ready for lunch

franco_vazza, 9 days ago to Astro

#SimulatedUniverses todays rendering of the evolving gas density (left), temperature (centre) and magnetic field strength (right) for a thin slice through a random position in my latest 1024^3 cells simulation of a red primordial spectrum.
(Too bad a few halos appear and then disappear from the chosen slice, as they wander in the direction perpendicular to this line of sight).
ENZO-MHD simulation ran on the Leonardo cluster at CINECA using GPUs.

#astrodon #astronomy

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