#astrophysical — Public Fediverse posts

The #WowSignal Deciphered. It Was Hydrogen All Along.
The Wow! signal, detected on August 15, 1977, was an intense radio transmission that appeared artificial and raised the possibility of #extraterrestrial contact. However, recent research suggests it may have been caused by a natural #astrophysical event involving a #magnetar flare striking a hydrogen cloud.
https://www.universetoday.com/168176/the-wow-signal-deciphered-it-was-hydrogen-all-along/

[#SoutenanceHDR] This Friday morning, Hassan Sabbah, Assistant Professor at Toulouse III University and researcher at @IRAP, will defend his Authorization to Direct Research on the "Origin and Evolution of Cosmic #PAHs ".

These carbonaceous #molecules are omnipresent in #astrophysical environments. They are involved in particular in the physicochemical processes of stellar and planetary formation.

Details+ : https://www.irap.omp.eu/event/origin-and-evolution-of-cosmic-pahs-tracing-molecular-content-of-dust-analogs-meteorites-and-asteroids/

https://iopscience.iop.org/article/10.3847/1538-4357/acdee0
On Detecting Interstellar Scintillation in Narrowband Radio #SETI
The Astrophysical Journal, Volume 952, Number 1

"radio frequency scattering effects,…spectra broadening, could imprint on extra-solar narrowband signals, altering them enough to be resolved and distinguished from terrestrial radio frequency interference (RFI). A signal filter based on #astrophysical properties would be an important tool…for evaluating candidate #technosignatures."

Researchers say time is an illusion.

Time we're experiencing is a social construct. Real time is actually something quite different. In some of the odder corners of the Universe, space and time can stretch and slow — and sometimes even break down completely.

🔗 https://www.npr.org/2022/12/16/1139780043/what-is-time-physics-atomic-clocks-society

#time #illusion #SocialConstruct #psychology #sociology #relativity #TimeManagement #gravity #universe #astronomy #astrophysical #clock #clocks #StandardTime

A colleague sent me this picture from the #climate session at the #American #Astrophysical #Society #AAS #AAS221 in #Seattle.

It seems astronomers in the US don't care about #ClimateChange #ClimatEmergency #ClimateCrisis #GlobalWarming #sustainableResearch

Are you serious ??? 🙄

😭

#Astronomy #astronomerLife #AcademicLife

(okay, maybe everyone is attending remotely, which would be perfect, but I doubt)

Paper day on #ScienceMastodon! Because of my recent move to #Kapteyn I did not get to toot (!) about Matt Clement's and my recent #paper "Reduced Late #Bombardment on Rocky #Exoplanets around M #Dwarfs", which was published in the #Astrophysical #Journal Letters a few weeks ago. You can download the paper here: https://ui.adsabs.harvard.edu/abs/2022ApJ...938L...3L. And a ~20 min presentation on it from late October is here: https://youtu.be/M2CopK35Jrs. A short 🧵 on our findings. 🙂 #astronomy #astrodon #astrophysics #science

🌌 #DYK that #neutronstars are the remnants of catastrophic stellar core collapse. #ERCSYG researchers now join forces to decypher more about the #nuclear & #astrophysical processes.

👉 http://bit.ly/ERCHeavyMetal

@koebenhavns_uni @FAIR_GSI_de @GSI @ucddublin @QUBelfast @darach

🐦🔗: https://nitter.eu/ERC_Research/status/1585196719276720129