FY12 - National Optical Astronomy Observatory
... science capabilities at these observatories continue to enable a broad range of forefront scientific research. Facilities infrastructure support was provided to many tenant and partner facilities at both sites on a fee-for-service basis. The number of such hosted facilities continues to grow, especi ...
... science capabilities at these observatories continue to enable a broad range of forefront scientific research. Facilities infrastructure support was provided to many tenant and partner facilities at both sites on a fee-for-service basis. The number of such hosted facilities continues to grow, especi ...
Preliminary Design Manual - Caltech Optical Observatories
... NGAO versus Keck Upgrade Trade Study .......................................................................... 95 ...
... NGAO versus Keck Upgrade Trade Study .......................................................................... 95 ...
Woofer-Tweeter Adaptive Optics for Astronomy
... When imaging through strong turbulence the resolving power of a telescope is not proportional to its diameter but to the characteristic coherence length of turbulence called the Fried’s parameter (Sec. 2.4). which may only be 5-15cm at visible wavelengths. This became a real problem in the 20th Cent ...
... When imaging through strong turbulence the resolving power of a telescope is not proportional to its diameter but to the characteristic coherence length of turbulence called the Fried’s parameter (Sec. 2.4). which may only be 5-15cm at visible wavelengths. This became a real problem in the 20th Cent ...
optimizing the performance of as-manufactured grazing incidence x
... telescopes have only been conceived and designed for a little over fifty (50) years. The Wolter Type I design is particularly well suited for stellar astronomical telescopes (very small field-ofview). The first orbiting X-ray observatory, HEAO-1 was launched in 1977, a mere twenty-eight (28) years a ...
... telescopes have only been conceived and designed for a little over fifty (50) years. The Wolter Type I design is particularly well suited for stellar astronomical telescopes (very small field-ofview). The first orbiting X-ray observatory, HEAO-1 was launched in 1977, a mere twenty-eight (28) years a ...
Astronomical Adaptive Optics using Multiple Laser Guide Stars
... key roles in furthering the experiments presented here. I’d like to additionally thank the telescope operators at the MMT: Mike Alegria, Alejandra Milone and John McAffe. They have gone above and beyond the call of duty in supporting our engineering at the telescope. I am thankful for Kim Chapman an ...
... key roles in furthering the experiments presented here. I’d like to additionally thank the telescope operators at the MMT: Mike Alegria, Alejandra Milone and John McAffe. They have gone above and beyond the call of duty in supporting our engineering at the telescope. I am thankful for Kim Chapman an ...
SPIE Astronomical Telescopes and Instrumentation Technical
... (JWST) fall into four themes. The End of the Dark Ages: First Light and Reionization theme seeks to identify the first luminous sources to form and to determine the ionization history of the universe. The Assembly of Galaxies theme seeks to determine how galaxies and the dark matter, gas, stars, met ...
... (JWST) fall into four themes. The End of the Dark Ages: First Light and Reionization theme seeks to identify the first luminous sources to form and to determine the ionization history of the universe. The Assembly of Galaxies theme seeks to determine how galaxies and the dark matter, gas, stars, met ...
Critical-Angle Transmission Gratings for High Resolution, Large Area Soft X-Ray Spectroscopy
... ΔE) and resolving power (large R = λ/Δλ). The x-ray band of interest for these science objectives extends over more than two orders of magnitude in energy. High quality spectroscopy over such a large band cannot be obtained with a single instrument. For example, imaging spectroscopy with a spectral ...
... ΔE) and resolving power (large R = λ/Δλ). The x-ray band of interest for these science objectives extends over more than two orders of magnitude in energy. High quality spectroscopy over such a large band cannot be obtained with a single instrument. For example, imaging spectroscopy with a spectral ...
united states district court
... parts to them: the tube (which is usually made out of metal, plastic or wood) and two convex glass lenses. When light travels through the objective lens, the light refracts, converges and creates a real image in the middle of the tube, close to the eyepiece lens. The eyepiece lens at the bottom then ...
... parts to them: the tube (which is usually made out of metal, plastic or wood) and two convex glass lenses. When light travels through the objective lens, the light refracts, converges and creates a real image in the middle of the tube, close to the eyepiece lens. The eyepiece lens at the bottom then ...
Astronomical seeing conditions as determined by turbulence modelling and optical measurement
... Department of Geography, Geoinformatics and Meteorology, University of Pretoria, Pretoria 0002, South Africa ...
... Department of Geography, Geoinformatics and Meteorology, University of Pretoria, Pretoria 0002, South Africa ...
evolution of the foucault-secretan reflecting telescope
... diameters he moved from spherical to paraboloidal mirrors and developed tests to determine the errors of the surfaces he was polishing, of which the knife-edge test is the most informative and sensitive. The errors were then corrected with retouches locales, i.e. local repolishing. He also introduce ...
... diameters he moved from spherical to paraboloidal mirrors and developed tests to determine the errors of the surfaces he was polishing, of which the knife-edge test is the most informative and sensitive. The errors were then corrected with retouches locales, i.e. local repolishing. He also introduce ...
The Lake Baikal Three Messenger Conference
... – Gamma Messages From the Farthest Half of the Universe Measured by MAGIC Presenters: Prof. MIRZOYAN, Razmik – TeV pulsed emission from the Crab pulsar detected by MAGIC Presenters: GALINDO, Daniel – MAGIC observations under extreme conditions Presenters: FRUCK, Christian – The future of gamma-ray a ...
... – Gamma Messages From the Farthest Half of the Universe Measured by MAGIC Presenters: Prof. MIRZOYAN, Razmik – TeV pulsed emission from the Crab pulsar detected by MAGIC Presenters: GALINDO, Daniel – MAGIC observations under extreme conditions Presenters: FRUCK, Christian – The future of gamma-ray a ...
PDF
... In mid-2009, the red arm of our workhorse multi-object spectrometer, LRIS, received a new dewar with a highly-sensitive detector mosaic that substantially improved the instrument’s red-side throughput (see the Summer 2009 issue). The CCD array operated well for several months, but then began deterio ...
... In mid-2009, the red arm of our workhorse multi-object spectrometer, LRIS, received a new dewar with a highly-sensitive detector mosaic that substantially improved the instrument’s red-side throughput (see the Summer 2009 issue). The CCD array operated well for several months, but then began deterio ...
Full Dissertation - Harvard-Smithsonian Center for Astrophysics
... First, I want to thank all those who made this project possible by their support. The institutions listed in Appendix 1 and the grants provided the financial assistance that made this research possible. Our remote collaborators, Giovanni Fazio, Kandi Shivanandan, and Lynne Deutsch also had a major r ...
... First, I want to thank all those who made this project possible by their support. The institutions listed in Appendix 1 and the grants provided the financial assistance that made this research possible. Our remote collaborators, Giovanni Fazio, Kandi Shivanandan, and Lynne Deutsch also had a major r ...
ZERODUR ® - Catalogue
... tensile stress, their maximum depth determines the load that a specific part can endure. Smaller micro cracks generally lead to higher strength. With increases in the size of the tensile stress loaded area, deeper cracks may occur according to their probability distribution. Therefore, larger loade ...
... tensile stress, their maximum depth determines the load that a specific part can endure. Smaller micro cracks generally lead to higher strength. With increases in the size of the tensile stress loaded area, deeper cracks may occur according to their probability distribution. Therefore, larger loade ...
Asiago_2012_NEON_Hook
... wavelength - so need to make each component to be a zero deviation pair of prisms of different glasses itself. • Prisms can be thin and the wedge angle is small (typically 1.5 degrees) and they are often oiled together in pairs to increase throughput. • The design becomes more difficult in convergin ...
... wavelength - so need to make each component to be a zero deviation pair of prisms of different glasses itself. • Prisms can be thin and the wedge angle is small (typically 1.5 degrees) and they are often oiled together in pairs to increase throughput. • The design becomes more difficult in convergin ...
JWST Project Report to the PMC
... 1.) Orbit that assures thermal stability and low background 2.) Orbit that assures long dwell times 3.) A stable PSF and excellent pointing 4.) Infrared sensitivity (planetary temperatures; molecules) 5.) Aperture sufficient to permit medium resolution spectroscopy These are obtained with a large ap ...
... 1.) Orbit that assures thermal stability and low background 2.) Orbit that assures long dwell times 3.) A stable PSF and excellent pointing 4.) Infrared sensitivity (planetary temperatures; molecules) 5.) Aperture sufficient to permit medium resolution spectroscopy These are obtained with a large ap ...
A Sixty-Year Timeline of the Air Force Maui Optical and
... (AMOS) has provided the U.S. Department of Defense (DoD) with space situational awareness capabilities from the island of Maui, Hawaii. AMOS is comprised of two separate facilities: the Maui Space Surveillance Complex (MSSC) and the Maui High Performance Computing Center (MHPCC). The MSSC is located ...
... (AMOS) has provided the U.S. Department of Defense (DoD) with space situational awareness capabilities from the island of Maui, Hawaii. AMOS is comprised of two separate facilities: the Maui Space Surveillance Complex (MSSC) and the Maui High Performance Computing Center (MHPCC). The MSSC is located ...
LaPalma_2013_Hook
... • The primary is concave. • The secondary is either convex or concave and may be inside or beyond the prime focus. • Most common designs have the secondary acting as magnifier so that the final effective focal length is greater than that of the primary • If the primary is paraboloidal the secondary ...
... • The primary is concave. • The secondary is either convex or concave and may be inside or beyond the prime focus. • Most common designs have the secondary acting as magnifier so that the final effective focal length is greater than that of the primary • If the primary is paraboloidal the secondary ...
Celestron Dacl"fl"c ...the world`s leading manufacturer the Celestron
... This rating of telescopes of difference aperture takes into consideration the seeing conditions which occasionally limit the magnification at which large telescopes can be used. It is based on the ...
... This rating of telescopes of difference aperture takes into consideration the seeing conditions which occasionally limit the magnification at which large telescopes can be used. It is based on the ...
SEI Structure Development - LIGO
... * For LIGO estimating, contingency was first estimated using a standard qualitative process to assign risk factors at the activity level for technical and procurement risk and at the WBS level for schedule risk. The additional risk factor resulting from the Monte Carlo analysis was added at the subs ...
... * For LIGO estimating, contingency was first estimated using a standard qualitative process to assign risk factors at the activity level for technical and procurement risk and at the WBS level for schedule risk. The additional risk factor resulting from the Monte Carlo analysis was added at the subs ...
Reflecting `Popular Culture`: The Introduction, Diffusion, and
... at their disposal could eventually obtain the necessary results. The relatively few professional instrument-makers active at the beginning of the eighteenth century could not simply permit themselves to undertake such time-consuming activities.15 In 1723, the first ‘Hadleyan’ reflecting telescope wa ...
... at their disposal could eventually obtain the necessary results. The relatively few professional instrument-makers active at the beginning of the eighteenth century could not simply permit themselves to undertake such time-consuming activities.15 In 1723, the first ‘Hadleyan’ reflecting telescope wa ...
About the Hubble Space Telescope
... The servicing mission in 1999 enhanced many of Hubble’s subsystems, including the central computer, a new solid-state data-recording system to replace the aging magnetic tape drives, and the gyroscopes needed for pointing control. A month prior to launch, a gyroscope failure had forced Hubble into ...
... The servicing mission in 1999 enhanced many of Hubble’s subsystems, including the central computer, a new solid-state data-recording system to replace the aging magnetic tape drives, and the gyroscopes needed for pointing control. A month prior to launch, a gyroscope failure had forced Hubble into ...
PATBNTED OCT. 29. 1907. TELESCOPE.
... tagonal in form, although in substance it is the same as the triangular prism of Figs. 1 to 4, the additional mate rial marked A’ performing no function except that of 70 enabling the constructor to eliminatev air-to-glass sur— faces between the two prisms. ...
... tagonal in form, although in substance it is the same as the triangular prism of Figs. 1 to 4, the additional mate rial marked A’ performing no function except that of 70 enabling the constructor to eliminatev air-to-glass sur— faces between the two prisms. ...
Design, fabrication, and open-loop control of micro deformable mirrors for Contents
... ground-based instrument intended for observation of Jovian exoplanets, with the help of high spatial resolution DMs having thousands of control points. In addition to exoplanet detection, such an ExAO system will be capable of characterizing dust disks around stars and will allow high Strehl ratio i ...
... ground-based instrument intended for observation of Jovian exoplanets, with the help of high spatial resolution DMs having thousands of control points. In addition to exoplanet detection, such an ExAO system will be capable of characterizing dust disks around stars and will allow high Strehl ratio i ...
Untitled - narrowbandimaging.com
... spherical aberration. The Ritchey-Chretien design is free of coma and spherical aberration at a flat focal plane, making it well suited for wide field and photographic observations. Because it is a reflector telescope, it does not suffer from chromatic aberration, unlike catadioptric or refractor te ...
... spherical aberration. The Ritchey-Chretien design is free of coma and spherical aberration at a flat focal plane, making it well suited for wide field and photographic observations. Because it is a reflector telescope, it does not suffer from chromatic aberration, unlike catadioptric or refractor te ...
Allen Telescope Array
The Allen Telescope Array (ATA), formerly known as the One Hectare Telescope (1hT) is a radio telescope array dedicated to astronomical observations and a simultaneous Search for Extraterrestrial Intelligence (SETI). The array is situated at the Hat Creek Radio Observatory, 290 miles (470 km) northeast of San Francisco, California.Originally developed as a joint effort between the SETI Institute and the Radio Astronomy Laboratory (RAL) at the University of California, Berkeley (UC Berkley) with funds obtained from an initial US$11.5 million donation by the Paul G. Allen Family Foundation, the project completed the first phase of construction and become operational on 11 October 2007 with 42 antennas (ATA-42), after Paul Allen (co-founder of Microsoft) pledged an additional $13.5 million to support the construction of the first and second phases.Though overall Allen has contributed more than $30 million to the project, the project has not succeeded in building the 350 six metre (19.7 feet) dishes originally conceived, and suffered an operational hiatus due to funding shortfalls between April and August 2011. Subsequently, UC Berkeley exited the project, completing divestment in April 2012. The facility is now managed by SRI International (formerly Stanford Research Institute), an independent, nonprofit research institute.In August 2014 the installation was threatened by a forest fire in the area and was briefly forced to shut down, but ultimately emerged largely unscathed.