Dieter Horns

teaching research curiosity physics University @quunihh @unihh

[Dieter Horns @DH0rns]

Today on #arxiv: Results on the 🧲 field in the Crab Nebula. The almost 50 years old paradigm of a strong hydrodynamic shock is challenged by the latest data. Read all about it in our recent paper and a run down of the key points in the 🧵. #paperday https://t.co/ghwz0C9a8O

[Dieter Horns @DH0rns]

The preprint with the discovery is available https://t.co/ORPmt9xfYc

[Dieter Horns @DH0rns]

It's been a long road but finally, we have been able to measure the magnetic field in the voids between galaxies! How tiny, it takes a new name "femto Gauss" to characterize. Google it, and you will find our preprint that reports on the discovery of intergalactic magnetic fields!

[Dieter Horns @DH0rns]

Dark Matter around intermediate mass black holes (IMBHS): a fantastic combination for indirect searches. We estimate the number of IMBHs in the Milky Way. You want to know how many there could be? Have a look at our recent paper at JCAP: https://t.co/UkVNj7wgBk open access!

[Dieter Horns @DH0rns]

Great news! https://t.co/67gni0C5iU announced the results of their evaluation of the funding requests for new research buildings. Our application Hamburg Fundamental Interactions Laboratory der Universität Hamburg (HAFUN) was ranked first for funding!

[Quantum Universe @quunihh]

Call for Application! Scholarship 2024 for Master’s Students for Scientific Qualification within the Cluster of Excellence “Quantum Universe”. Find out more: https://t.co/LYRzp1eDiJ #scholarship #masterstudent @unihh

[Dieter Horns @DH0rns]

We wanted to understand the interplay of fluorescence and Cherenkov light emission from extended air showers at ultra-large zenith angles. More on this https://t.co/lgVQCKXoCy (accepted for publication) by Ali Baktash from @unihh - try out the model at https://t.co/4DZw1pqrYx

[Dieter Horns @DH0rns]

After years of preparation and work of the team and @LeeeeeHg, we've concluded the first stage of the BRASS experiment https://t.co/ArGdQwcgl8 at @UHHMIN @unihh with support of the @quunihh and @MPIfR_Bonn! Have a look at our hidden photon #DarkMatter sensitivity. More to come

[Dieter Horns @DH0rns]

Thanks for the support of @UHHMIN @unihh @quunihh @dfg_public , we are setting up a new tabletop experiment using hollow core PC fiber to search for photon axion mixing.

[higgsinocat @higgsinocat]

WISP Searches on a Fiber Interferometer under a Strong Magnetic Field. (arXiv:2305.12969v1 [hep-ex]) relevance:100% https://t.co/ImDa7ax7EN #darkmatter @yikun_gu @DH0rns

[higgsinocat @higgsinocat]

Searching for photon-ALPs mixing effects in AGN gamma-ray energy spectra. (arXiv:2208.00079v3 [astro-ph.HE] UPDATED) relevance:94% https://t.co/bKGK2KjVp4 #darkmatter @DH0rns

[Dieter Horns @DH0rns]

Congratulations 🎊 that's a really nice new building!

[MIN Graduate Center Uni Hamburg @MINGZunihh]

Dear doctoral researchers @UHHMIN! Our goal is to support you and to continuously improve the doctoral education at the MIN Faculty. To achieve this, we need your help! 💙 Please complete this short, anonymous survey on doctoral supervision and wellbeing: https://t.co/JosonDOEys

[Dieter Horns @DH0rns]

We didn't get a response from @elonmusk, maybe another time. Will probably build something similar instead.

[Dieter Horns @DH0rns]

'Dishy' from @SpaceX would be an excellent component for our dark matter experiment BRASS at @quunihh any chance to get a research access to the phased array @elonmusk ?

[Dieter Horns @DH0rns]

Great summary @NZZ about anomalous gamma-ray transparency for GRB221009A https://t.co/0RAV6b4DR7. But: the expected number of photons at 18 TeV varies between 0.00000001 and 5 (https://t.co/qGTc8cNC9q) depending on how much dust there is in the universe!

[Dieter Horns @DH0rns]

This GRB is amazing and inspiring for anybody interested in gamma ray propagation. If the LHAASO famous 18 TeV photon is not background, there is an interesting story to tell. Have a look at our paper!

[Dieter Horns @DH0rns]

This GRB is amazing and inspiring for anybody interested in gamma ray propagation. If the LHAASO famous 18 TeV photon is not background, there is an interesting story to tell. Have a look at our paper!

[higgsinocat @higgsinocat]

Interpretation of multi-TeV photons from GRB221009A. (arXiv:2210.07172v1 [astro-ph.HE]) relevance:35% https://t.co/BaUlh5JFGg #darkmatter @DH0rns

[Dieter Horns @DH0rns]

@HdAstro Für Donnerstag bereite ich mich schon fleißig vor..ich freue mich besonders auf viele Fragen zu den kosmischen Beschleunigern!

[Dieter Horns @DH0rns]

@higgsinocat Recent study lead by our PhD student Qixin Yu. Significant improvement of fits to gamma ray spectra when including photon A
mixing with nano eV pseudoscalars. Interesting twist: we fit the magnetic field properties.

[higgsinocat @higgsinocat]

Searching for photon-ALPs mixing effects in AGN gamma-ray energy spectra. (arXiv:2208.00079v1 [astro-ph.HE]) relevance:89% https://t.co/bKGK2KjVp4 #darkmatter @DH0rns

[Dieter Horns @DH0rns]

It was a very nice defense with great and original results. Thanks Anton and all the best!

[Quantum Universe @quunihh]

Huge congratulations to Anton Sokolov for successfully defending his PhD thesis on axion physics! 🎉
After three years of cluster runtime, Anton is now the second PhD student of Quantum Universe’s research school to complete his dissertation.