Figure 4.
Despite bad weather,
astronomers using
the Gemini MultiConjugate Adaptive
Optics System (GeMs)
got one clear night
during its most
recent run, which was
enough to provide nice
images for the Gemini
Frontier Fields.
Figure 5.
Good image quality is regularly achieved
under good seeing conditions, with a best
performance of 0.4 arcsecond Full Width at
Half Maximum at the J band, across the 6 arcminute field-of-view.
Comparison of
Ks-band images (2.2
micron) taken with
GSAOI (left column)
and H-band (1.6
micron) images (right)
taken with HST/WFC3
(right column). While
not as deep as HST
data, the new GeMS/
GSAOI dataset offers
twice the resolution on
the distant universe.
14
GeMS Completes Successful Run:
Frontier Fields Images Released!
The Gemini Multi-Conjugate Adaptive Optics System (GeMS) completed a successful observing run during September. Poor
weather conditions meant that only one of
eight nights was used to observe science
programs. Nevertheless, the GeMS team
achieved several goals, including eliminating the elongation of images, providing a
stable laser at 30 watts, and producing nice
images of the giant galaxy cluster Abell
2744, for the Gemini Frontier Fields program.
View here for more details and to access the
public and reduced data from this program.
GeminiFocus
October 2014