Gemini Observatory’s latest tool for astronomers, a second-generation infrared instrument called FLAMINGOS-2, has “traveled a long road” to begin science observations for the Gemini scientific community. Recent images taken by FLAMINGOS-2 during its last commissioning phase dramatically illustrate that the instrument was worth the wait for astronomers around the world who are anxious to begin using it.
“It’s already one of our most requested instruments at the Gemini telescopes,” remarks Nancy Levenson, Gemini’s Deputy Director and Head of Science. “We see a long and productive life ahead for FLAMINGOS-2 once astronomers really start using it later this year.”
“It has not been an easy journey,” says Percy Gomez Gemini’s FLAMINGOS-2 Instrument Scientist, “but thanks to the dedicated work of Gemini engineers and scientists very soon astronomers will be able to use a reliable and robust instrument.” After significant redesign and rebuilds for optimal performance on the Gemini South telescope, FLAMINGOS-2 has proven that it will provide astronomers with a powerful mix of capabilities. These include extreme sensitivity to infrared (heat) radiation from the universe, high-resolution wide-field imaging, and a combination of spectroscopic capabilities that will allow cutting-edge research in topics spanning from the exploration of our Solar System, to the most distant and energetic explosions in our universe.
While work still remains on some of its spectroscopic features, as well as refining imaging at the edge of its large field of view, Gemini’s team of engineers and scientists has mitigated its most severe risk – potential damage to a large collimator lens that catastrophically cracked during a planned final commissioning in early 2012 (it was later replaced). The thermal environment surrounding this lens – located where the temperature changes periodically for routine switching of masks for multi-object spectroscopy - creates special challenges. It was these temperature changes that initially caused the crack, but a year later procedures and design modifications are now in place to significantly reduce risks to the lens’s integrity and functionality.
“The Gemini team has done a remarkable job in optimizing this instrument for Gemini and it will soon be everything, and more, that we had envisioned years ago when the project began,” says Steve Eikenberry, who led the team who built FLAMINGOS-2 at the University of Florida. “Like a lot of scientists, I’m anxious to use FLAMINGOS-2 to collect data – specifically, I want to look toward the center of our Galaxy and study binary black holes as well as the mass evolution of the super-massive black hole that lurks at the heart of our Galaxy.” Eikenberry and collaborators are eager to make the most of FLAMINGOS-2’s power as soon as the instrument’s multi-object spectroscopy capability is fully functional. “With most of the challenges behind us, now the fun begins!” Eikenberry said.
Kevin Stevenson of the University of Chicago already has plans to use FLAMINGOS-2 later this year to study the intriguing exoplanet WASP-18b. This well-known exoplanet is being strongly heated by its ultra-nearby host star and according to Stevenson, “It's even hotter than some of the coolest, low-mass stars known.” Stevenson and his team hope to determine the abundances of water vapor and methane when the planet is eclipsed by its host star. “Our plan is to compare the system's light immediately before and during an eclipse to measure the contribution from the planet. When we do this over several parts of the infrared part of the light spectrum, we can piece together the planet's spectrum and learn about its temperature and composition.”
The quality and usefulness of FLAMINGOS-2 for these and future projects is reflected in the images released today. They cover a wide range of targets which are representative of the types of science in which FLAMINGOS-2 is expected to excel. In addition, the instrument may later accept an adaptive optics (AO) feed for extremely high-resolution imaging from GeMS (Gemini Multi-conjugate adaptive optics System).
It is expected that most of these systems, including multi-object spectroscopy, will be fully integrated in 2014 with imaging and long-slit spectroscopy available now. The next round of observations with FLAMINGOS-2 are slated to begin on September 1st.
Gemini's mission is to advance our knowledge of the Universe by providing the international Gemini Community with forefront access to the entire sky.
The Gemini Observatory is an international collaboration with two identical 8-meter telescopes. The Frederick C. Gillett Gemini Telescope is located on Mauna Kea, Hawai'i (Gemini North) and the other telescope on Cerro Pachón in central Chile (Gemini South); together the twin telescopes provide full coverage over both hemispheres of the sky. The telescopes incorporate technologies that allow large, relatively thin mirrors, under active control, to collect and focus both visible and infrared radiation from space.
The Gemini Observatory provides the astronomical communities in six partner countries with state-of-the-art astronomical facilities that allocate observing time in proportion to each country's contribution. In addition to financial support, each country also contributes significant scientific and technical resources. The national research agencies that form the Gemini partnership include: the US National Science Foundation (NSF), the Canadian National Research Council (NRC), the Chilean Comisión Nacional de Investigación Cientifica y Tecnológica (CONICYT), the Australian Research Council (ARC), the Argentinean Ministerio de Ciencia, Tecnología e Innovación Productiva, and the Brazilian Ministério da Ciência, Tecnologia e Inovação. The observatory is managed by the Association of Universities for Research in Astronomy, Inc. (AURA) under a cooperative agreement with the NSF. The NSF also serves as the executive agency for the international partnership.
Structured light and nanomaterials open new ways to tailor light at the nanoscale
23.04.2018 | Academy of Finland
On the shape of the 'petal' for the dissipation curve
23.04.2018 | Lobachevsky University
At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.
Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...
Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.
Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
24.04.2018 | Information Technology
24.04.2018 | Earth Sciences
24.04.2018 | Life Sciences