Olivier Chapuis

I am a researcher working at Paris-Saclay University. I work on Human-Computer Interaction and visualisation. I am developing a platform for visualising astronomical data (2D images, catalogues, data cubes, and 3D rendering). I would like to share some of the resulting visualisation.

yes

@bot.astronomy.blue signup

Comparing the above JWST image with a twelve-year-old image by the Hubble Space Telescope (HST PI: 13003 www.stsci.edu/hst-program-...) near-infrared 110w (green) - 160w (red).

In the second part of the video, a not catalogued (TNS) transient (supernova?) in HST.

@cheribliss.bsky.social @melina-iras07572.bsky.social @yuvharpaz.bsky.social The new image of IC 348 by JWST seems fantastic. Interesting image processing in perspective.

Pismis 24. Left JWST + ALMA (90w/200w JWST Blue/Green HCN ALMA red). Right JWST + Chandra (Chandra Blue, 90w/200w JWST Green/Red).

Nice videos here of Pismis 24 here: science.nasa.gov/missions/web...

Credits: NASA/ESA/CSA & ESO

The annotation shows three gravitationally lensed images of the same three galaxies.

New JWST images of clj0152-1357, a #Galaxy cluster at ~ 0.84. A lot of lensed galaxies. The cutout shows two lensed versions of the same galaxy (z > 2), like in a mirror.

B/G/R f090w/f200w/f444w JWST NIRCAM "cooking".

Credit: NASA/ESA/CSA JWST GO 6882, hypatia-vis processing
1/n #Astronomy

What about alternative models such as the Wiltshire timescape cosmology? Timescape "does not require" dark energy and seems convincing: iopscience.iop.org/article/10.1... and, e.g., academic.oup.com/mnras/articl....

Adding X-rays: blue: Chandra, green&red: JWST 277w&356w. X-rays match the IR and "no" radio source [Viral Parekh, MNRAS 464 3 2017], no "important" merge since ~ Gyr (?).

Another example.

Procrastination with the new JWST images of macsJ0308+2645. The three cutouts at the bottom are gravitationally lensed images of the same galaxy [Ana Acebron et al 2018 ApJ 858 42]

MACSJ0308+2645 #Galaxy #cluster with an incredible number of strong lenses.
JWST NIRCAM f090w/f200w/f356w B/G/R "cooking".

Credit: NASA/ESA/CSA JWST GO 6882, hypatia-vis processing

yet another processing B/G/R 560w/770w/1130w

"L'informatique est une science expérimentale, si vous pensez que non c'est que vous faites des mathématiques" -- Je ne sais plus qui

IC 342 with Euclid ERO data: euclid.esac.esa.int/dr/ero/

📢 Une fois de plus, les femmes astronomes sont effacées de l’histoire : le hors-série Ciel & Espace sur les “découvreurs de l’Univers” n’en mentionne qu’une seule.

✊ Pour que les filles d’aujourd’hui aient des modèles.
📄 sf2a.eu/website2023/...

#FemmesEnScience #Astronomie #MatildaEffect

Photo de femmes astronomes à Harvard

En ce 11 février , c'est la journée internationale des femmes et des filles de science, je tiens à vous présenter des femmes astronomes extraordinaires. Cette liste ne peut pas être exhaustive, n'hésitez donc pas à compléter!#FemmesEnScience (© I. Vauglin)
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