Comparing AO techniques

Central parts of the globular cluster Omega Centauri, as seen using different adaptive optics techniques. The upper image is a reproduction of ESO Press Photo eso0719, with the guide stars used for the MCAO correction identified with a cross. A box shows a 14 arcsec area that is then observed while applying different or no AO corrections, as shown in the bottom images. From left to right : No Adaptive Optics, Single Conjugate and Multi-Conjugate Adaptive Optics corrections. SCAO has almost no effect in sharpening the star images while the improvement provided by MCAO is remarkable.

Crédit:

ESO

À propos de l'image

Identification:eso0719e
Type:Observation
Date de publication:30 mars 2007
Communiqués de presse en rapport:eso0719
Taille:1534 x 2061 px

À propos de l'objet

Nom:Omega Centauri
Type:Milky Way : Star : Grouping : Cluster : Globular
Distance:17000 années lumière
Catégorie:Star Clusters

Image Formats

Grand JPEG
744,5 Kio
JPEG taille écran
272,4 Kio

Fonds d'écran

1024x768
218,5 Kio
1280x1024
323,0 Kio
1600x1200
405,9 Kio
1920x1200
433,1 Kio
2048x1536
558,3 Kio

Couleurs & filtres

DomaineTélescope
Visible
Br-gamma
Very Large Telescope
ESO Multi-conjugate Adaptive optics Demonstrator (MAD)