GeminiFocus 2015 Year in Review | Page 47

(both North and South) dominated the proposal statistics. Welcome, Korea, and we hope this relationship is long and fruitful. See page 22 in Science Highlights for Korea’s first results as a limited Gemini partner. Pachón is granitic, while that on Maunakea is light basalt. Granitic dust on the Gemini South primary does not fully come off with CO2 cleanings, whereas basaltic dust on the Gemini North primary does. Therefore, given only carbon dioxide cleaning, reflectivity of the Gemini South primary would decrease more quickly than Gemini North’s. April 2015 First Korean Time on Gemini With Korea now Gemini’s first limited-term partner, the Korea Astronomy and Space Science Institute (KASI) has taken on the job of coordinating the vetting of proposals from all over Korea and producing “miniqueues,” which will be executed in pre-scheduled blocks of time on both Gemini North and Gemini South. Figure 16. Washing the Gemini South Primary Mirror in situ. Gemini IRAF Software Package Released A new version of the Gemini Image Reduction and Analysis Facility (IRAF) software package (v1.13) for data reduction has been released (January 29, 2015) and is available. This full release supersedes the recent commissioning and patch releases. Of special note, this latest release will support GMOS-S Hamamatsu data with quantum efficiency corrections, provide new and improved tasks in support of GMOS integral field unit data reduction, and offer better handling of variance and data quality planes throughout the GMOS package. The new package is available for download on this web page. Figure 17. The first Korean observing team at Gemini North, shown here while making observations in March. The Korean community showed great interest in observing at Gemini North and a total of seven Principal Investigators or Co-Investigators, plus three KASI staff, helped with implementation of the programs during an intense week carried out in Priority Visitor observing mode (see Figure 17). The science is varied — star clusters, active Galactic nuclei, galaxy clusters, high-redshift galaxies, etc. — but mostly of extragalactic nature. The Gemini Multi-Object Spectrographs January 2016 2015 Year in Review GeminiFocus 45