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Limits on Binarity of Exoplanet Host Stars

Gemini North Back On-sky: Dome Repairs Complete

After a very involved repair to a drive unit for the shutter of the Gemini North dome, Gemini North is back on the sky for regular science operations. See more at: www.gemini.edu/node/12160 .

Gemini North Back On-sky: Dome Repairs Complete

GPI Call for Early Science programs

The call for Early Science programs using the Gemini Planet Imager (GPI) is now open, with full information posted at http://www.gemini.edu/sciops/instruments/gpi/gpi-early-science/call-proposals. Proposals for shared-risk observations are due February 28, for execution in April.

Gemini North Dome Shutter Repair Shutdown UPDATE as of 2/7/14

The repairs to the shutter drive unit on the exterior of the Gemini North dome appear to be reaching the home stretch with a plan to reinstall the repaired drive unit on Monday, February 10th and be back on the sky on February 12th. As always, this is assuming the weather allows the work to progress as planned and no further complications occur.

Spectral Templates

Spectral templates (usually late type stars) are required for the analysis of kinematical data on external galaxies (or other stellar ensembles). In the near-IR, the most commonly used features are the CO overtone bands at λ > 2.3µm.

2014A Phase I Tool update available

A new 2014A Phase I Tool (PIT 2014A-SV 2014.1.2) has been released to support 2014A poor weather, director's time, and GPI early science proposals. Changes are described in the PIT Hot News.

Mask Design Using Existing Object Catalogues

Using dedicated GMOS images (pre-imaging) for designing MOS masks has the advantages of being independent of the accuracy of any astrometric calibration and immune against proper motions of alignment stars or objects. However it also requires more telescope time, and requires time between the start of the semester and the start of the MOS observations for the pre-imaging to be taken and the mask to be designed.

Gemini Planet Imager First Light!