Olivier Chapuis
@olivierchapuis.bsky.social
HCI at University Paris-Saclay, CNRS, Inria, LISN. Visualizing and interacting with astronomical data (Euclid, hypatia-vis).
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.
In the second part of the video, a not catalogued (TNS) transient (supernova?) in HST.
September 29, 2025 at 6:48 AM
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.
In the second part of the video, a not catalogued (TNS) transient (supernova?) in HST.
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
Nice videos here of Pismis 24 here: science.nasa.gov/missions/web...
Credits: NASA/ESA/CSA & ESO
September 4, 2025 at 11:23 PM
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
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.
September 3, 2025 at 8:29 PM
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
B/G/R f090w/f200w/f444w JWST NIRCAM "cooking".
Credit: NASA/ESA/CSA JWST GO 6882, hypatia-vis processing
1/n #Astronomy
September 3, 2025 at 8:27 PM
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
B/G/R f090w/f200w/f444w JWST NIRCAM "cooking".
Credit: NASA/ESA/CSA JWST GO 6882, hypatia-vis processing
1/n #Astronomy
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 (?).
August 29, 2025 at 12:21 PM
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.
August 29, 2025 at 12:12 PM
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]
August 29, 2025 at 12:03 PM
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]
yet another processing B/G/R 560w/770w/1130w
August 27, 2025 at 2:45 PM
yet another processing B/G/R 560w/770w/1130w
IC 342 with Euclid ERO data: euclid.esac.esa.int/dr/ero/
May 23, 2025 at 9:32 PM
IC 342 with Euclid ERO data: euclid.esac.esa.int/dr/ero/