214 citations · 374 across the 4 of their papers we have counts for
4 papers
Improved Image Quality Over 10' Fields with the `Imaka Ground Layer Adaptive Optics Experiment
Fatima Abdurrahman, Jessica R. Lu, Mark Chun +5
`Imaka is a ground layer adaptive optics (GLAO) demonstrator on the University of Hawaii 2.2m telescope with a 24'x18' field-of-view, nearly an order of magnitude larger than previ…
An ancient extrasolar system with five sub-Earth-size planets
T. L. Campante, T. Barclay, J. J. Swift +38
The chemical composition of stars hosting small exoplanets (with radii less than four Earth radii) appears to be more diverse than that of gas-giant hosts, which tend to be metal-r…
Reconnaissance of the HR 8799 Exosolar System I: Near IR Spectroscopy
B. R. Oppenheimer, C. Baranec, C. Beichman +29
We obtained spectra, in the wavelength range λ= 995 - 1769 nm, of all four known planets orbiting the star HR 8799. Using the suite of instrumentation known as Project 1640 on the…
On-sky wide field adaptive optics correction using multiple laser guide stars at the MMT
Christoph Baranec, Michael Hart, N. Mark Milton +6
We describe results from the first astronomical adaptive optics system to use multiple laser guide stars, located at the 6.5-m MMT telescope in Arizona. Its initial operational mod…