#AandA

Prof Heino Falckehfalcke
2024-06-10

Exciting new results: You want to make exquisite movies of black holes from space? It can be done with just three small dishes on different orbits around earth - the EventHorizonImager concept!

Have a look at our new paper „Imaging the event horizon of M87* from space on different timescales“

by Shlentsova et al. in aanda.org/articles/aa/full_htm

Reconstructed images are almost as good as the simulations.

Reconstruction of a simulated M87* shadow observation with the EHI at 230 GHz for 400 km orbital separation. From left to right: the middle theoretical emission map in the period of 37 days (the model with 3.7 days between frames); frames of the simulated movies, each lasting 37 days, reconstructed using snapshot imaging and dynamical imaging methods. For the EHI observing at 230 GHz, these movies demonstrate the best quality, according to the NXCORR, among all reconstructions that image source dynamics. The source is varying during the simulated observation. Colours indicate brightness/pixel in mJy (square root scale). The full reconstruction is available as an online movie.Parts of the uυ-coverage (baseline separation) of 8.9-h duration for 30, 400, and 1000 km separations of the orbits at 230 GHz; first, 81st, and 161st snapshots are shown (from top to bottom). Blue points correspond to the most separate pair of satellites; red points correspond to the pair of the innermost and the middle satellites; green points correspond to the pair of the middle and the outermost satellites.
Daniel Pomarèdepomarede
2024-02-15

Nice cover image for the current issue of Astronomy & Astrophysics
aanda.org/

from the paper "Observing the LMC with APEX: Signatures of large-scale feedback in the molecular clouds of 30 Doradus" by K. Grishunin and co-authors: aanda.org/articles/aa/full_htm

AlisonW ♿🏳️‍🌈♾️AlisonW@fedimon.uk
2023-01-03

Don't know what happened there, but just had to reboot my main router as my internet connection disappeared.
(According to RIPE probe it dropped at 2023-01-03 02:07:40) #AandA

Dr. Alexandre Santerne 🌍AlexSanterne@astrodon.social
2022-12-20

#ProudAdvisor day

The first, 1st-author paper by @sgrouffal, who just started a #PhD with me, is now fully published on #AandA. Hence, it will be a Grouffal et al. (2022).

She wrote that paper during her #Master #thesis (also with me as supervisor).

Salomé started her #PhD in October this year, and she is already writing a second 1st-author #paper.

Keep on the good work @sgrouffal 👍

Open-access paper link: aanda.org/articles/aa/full_htm

#Astronomy #AcademicLife #Astrophysics #Research #Science

Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-30
Modelling of the B-type binaries CW Cephei and U Ophiuchi #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/VsbpG3qK58U/201935235
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-30
Search for water outgassing of (1) Ceres near perihelion★ #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/IqAnIq-FNhs/201935738
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-30
Significance of bar quenching in the global quenching of star formation #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/ligMwuaxIqI/201935207
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-30
Significance of bar quenching in the global quenching of star formation #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/ligMwuaxIqI/201935207
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-29
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-29
Improved seismic model of the pulsating DB white dwarf KIC 08626021 corrected from the effects of neutrino cooling #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/NbbvXN4crFE/201935823
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-26
Molecular complexity on disc scales uncovered by ALMA #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/Xah9ZtPLvV8/201834527
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-26
The runaway greenhouse radius inflation effect #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/dwanx3GJGBQ/201935585
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-26
Optical validation and characterization of Planck PSZ2 sources at the Canary Islands observatories #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/VT4ZEH9gplM/201935674
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-26
A new weak-field magnetic DA white dwarf in the local 20 pc volume #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/jmQ2jAdX5CA/201936009
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-25
The CARMENES search for exoplanets around M dwarfs #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/Cjl1nAXTzUk/201935679
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-25
The high-energy radiation environment of the habitable-zone super-Earth LHS 1140b #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/qWYoYw0EwEA/201935636
Astronomy and Astrophysicsaanda@social.oalm.gub.uy
2019-07-25
Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ-ray observations with H.E.S.S. #aanda #science #news http://feedproxy.google.com/~r/edp_aa/~3/j-N-xNKeDGA/201935704

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