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Gemini e-Newscast #72

June 26, 2015

In This e-Newscast:

A High Resolution View of the Heavily Obscured Globular Cluster Liller 1


The extremely high densities of globular clusters are one of the few places where astronomers might observe the collision of stars, and new work shows that Liller 1 is one of the most extreme examples, hosting the second highest rate of potential stellar collisions of all stellar clusters. S. Saracino (Università di Bologna and Osservatorio Astronomico di Bologna, Italy) and collaborators have used the Gemini South Adaptive Optics Imager (GSAOI) and the Gemini Multi-conjugate Adaptive Optics System (GeMS) to provide an exceptionally detailed view of this globular cluster. It is located in the Galactic bulge and heavily obscured at visible wavelengths, though the closely-packed stars are evident in the near-infrared observations. The researchers produced the deepest and most accurate color-magnitude diagram of this cluster. More information is available from Gemini press release. The full results are published in The Astrophysical Journal and a preprint is also available.
Near-infrared image of the dense globular cluster, Liller 1, obtained with the GeMS adaptive optics system on the Gemini South telescope in Chile.

Fast Turnaround Deadline June 30


The regular rolling deadline for the Fast Turnaround (FT) program next comes up on June 30. Remember that this program is open to any compelling science case, not only those having some urgency for observation on a short timescale. We require a minimum of seven proposals to complete the reviews and allocate telescope time. The FT blog has the latest news, and full information is posted at the Gemini website.

Successful Meeting in Toronto


Over 130 Gemini users and stakeholders concluded the successful Future and Science of Gemini Observatory meeting in Toronto last week. We heard exciting science results and work in progress, including from all of the ongoing Large and Long Programs. Planning for the future was a theme. Lively discussions about future instrumentation, including presentations on the 4 selected GIFS studies, and operations engaged panel members and participants. Thanks to all who contributed in person, and we encourage the continuing discussion throughout the partnership.
Photo courtesy of Stephane Courteau.
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