Oliver Hahn

Computational Cosmologist, Believer in Numerics, Opinions my own

[Oliver Hahn @cosmohahn]

Very excited that our (with Florian List and Cornelius Rampf) new approach to doing cosmological simulations straight from the big bang got published in PRL (https://t.co/Q1XrXsHtEq). This is the Universe seen by photons:

[Bundeskanzler a.D. Olaf Scholz @KanzlerScholz]

Ich weise ausdrücklich zurück, was US-Vizepräsident Vance bei der Münchner Sicherheitskonferenz gesagt hat. Aus den Erfahrungen des Nationalsozialismus haben die demokratischen Parteien in Deutschland einen gemeinsamen Konsens: Das ist die Brandmauer gegen extrem rechte Parteien.

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

What happens in the Arctic doesn't stay in the Arctic. It affects you.
https://t.co/0g91HCRTAK

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

During nearly 30 years of trying to inform the public about climate science, and facing a massive barrage of disinformation, I’ve come to the same conclusion.
About why the world still has not solved this major crisis, although we have the means.

https://t.co/B2ocGDcQUV

[Heidi Weinhäupl @HWeinhaupl]

ORF Wissen @DiePressecom: "Kritik an der „Astro-Show“ kann nicht mit einem Verweis auf unsere wissenschaftsjournalistische Arbeit beantwortet werden. Genauso wenig wie im Fall einer Kritik an unserer Arbeit mit einem Verweis auf eine Show geantwortet werden könnte.“ @cosmohahn

[Peyman Milanfar @docmilanfar]

Strange but true - A wobbly table on any reasonable floor can be made steady by just turning it.

Moral of the story: Before dining out, always ask if their floor is Lipschitz continuous.

[Francesca Fragkoudi @astro_francesca]

Interested in a PhD in theoretical and observational galaxy formation and evolution, cosmology or instrumentation? The Durham Astronomy PhD booklet for this year is out: https://t.co/V8ae0wqtGk
More information about the application process here: https://t.co/eyxXfFJbTo

[Sibylle Berg @SibylleBerg]

https://t.co/Lb2SRRPIrC

[Jorryt Matthee @jorryt_m]

Today on the arXiv: All the Little Things in the Abell 2744 field: ~1600 redshifts measured with our Cycle 2 NIRCam grism program, and much, much more, showcasing the discovery space of this instrument
Among these 1600:
1) An analog of the Milky Way + local group 12.7 Gyr ago

[Universität Wien @univienna]

Offener Brief zur @ORF-Sendung "Blick in die Sterne"
Die Professor*innen des Instituts für Astrophysik wenden sich in einem offenen Brief an ORF Programm-Direktorin Stefanie Groiss-Horowitz. @stefaniegroiss
https://t.co/4vI9DHSCO3

[Jörg @kachelmann anderswo: @realkachelmann @Kachelmann]

Der Herr Kanzler @karlnehammer hat großes Glück gehabt.

Bei einer jahreszeitenüblichen oder womöglich überdurchschnittlich hohen Schneefallgrenze wäre heute Niederösterreich eine weitläufige Seenlandschaft mit einem etwa 1000- bis 2000-jährlichen #Hochwasser.

[Data Science @ Uni Vienna (fka @dsUniVie) @ds_vienna]

📢 We have an exciting #DataScience talk coming up with Krzysztof Janowicz from Dept. of #Geography about Data in Conflict and methods like knowledge graphs for more diverse perspectives on 🗓️Mon 6 May @ 14:00 CEST at Kolingasse or Zoom #hybridevent #DSHQ https://t.co/9To02bATpR

[Tom Gauld @tomgauld]

My latest cartoon for @newscientist

[astrobites @astrobites]

In eight new papers, @NANOGrav presents evidence for a gravitational wave background. In this bite, we provide an overview of their results and their implications #pulsartimingarrays #GravitationalWaves
https://t.co/FXyY6ZqnLN

[Geoffrey Supran @GeoffreySupran]

NEW: In @ScienceMagazine today, our latest peer-reviewed research shows Exxon scientists predicted global warming with shocking skill & accuracy between 1977 & 2003, contradicting the company's decades of climate denial. THREAD.

📰No pay wall for 2 weeks: https://t.co/JDtT9nkbzC

[Reto Knutti @Knutti_ETH]

The last 8 years were the hottest 8 on record. And for most, that's not enough to even to talk about.

[António Guterres @antonioguterres]

I have just warned global leaders at #COP27:

We are on a highway to climate hell with our foot on the accelerator.

Our planet is fast approaching tipping points that will make climate chaos irreversible.

We need urgent #ClimateAction.

[arXiv astro-ph @_arXiv_astro_ph]

[2211.02053] Cornelius Rampf, Oliver Hahn: Renormalization group and UV completion of cosmological perturbations: Gravitational collapse as a critical phenomenon https://t.co/F7PB89sYkQ https://t.co/XDZzfTgFAX #astro_ph_CO

[ESA Webb Telescope @ESA_Webb]

#Webb has captured new images of #Jupiter! The new observations feature visible auroras that extend to high altitudes above Jupiter's northern and southern poles. Explore the new images here: https://t.co/mn366GZ6BQ

[Fermat's Library @fermatslibrary]

Over three hundred years ago, Robert Boyle - the father of modern Chemistry - wrote a list of things that he hoped could be achieved through science