Concept and performance of multiple laser guide stars for 8-m
... field, constrains on the optics and deformable mirrors, and size of the science detector. With an MCAO system, large telescopes would be able to observe faint extragalactic objects and wide crowded fields (2 arcmin) at the diffraction limit. Keywords: ...
... field, constrains on the optics and deformable mirrors, and size of the science detector. With an MCAO system, large telescopes would be able to observe faint extragalactic objects and wide crowded fields (2 arcmin) at the diffraction limit. Keywords: ...
Document
... • You will be asked to first formulate your own answer, then to discuss your answer with each other, and finally to report each group’s answers to the class as a whole. ...
... • You will be asked to first formulate your own answer, then to discuss your answer with each other, and finally to report each group’s answers to the class as a whole. ...
chapter9-Section2
... In the simplest designs, a large bowl of mercury is spun at the proper rate to produce a surface with the desired parabolic shape. ...
... In the simplest designs, a large bowl of mercury is spun at the proper rate to produce a surface with the desired parabolic shape. ...
History - Astrophysical Research Consortium
... project), and they needed a partnership with other astronomy departments because their small, but growing faculty would underutilize and have difficulty managing a large facility (Wallerstein 2004). As early as October 1965 the UW Regents authorized construction of a large telescope using external ...
... project), and they needed a partnership with other astronomy departments because their small, but growing faculty would underutilize and have difficulty managing a large facility (Wallerstein 2004). As early as October 1965 the UW Regents authorized construction of a large telescope using external ...
... detectors, which offer the possibility of on-chip fast-readout (specific to the Hawaii RG II detectors). The latter was discarded, due to the added complexity in terms of operation, the limited performance gain in wide-band, and the decrease of sky coverage for narrowband observations. The loop rate ...
Towards the Intensity Interferometry Stellar Imaging System
... Pre-main sequence stars are young stars that are contracting towards the main-sequence, but are powered only by gravitational collapse: core temperature and pressure are insufficient to ignite hydrogen fusion. Key questions relating to the physics of mass accretion and PMS evolution can be addressed ...
... Pre-main sequence stars are young stars that are contracting towards the main-sequence, but are powered only by gravitational collapse: core temperature and pressure are insufficient to ignite hydrogen fusion. Key questions relating to the physics of mass accretion and PMS evolution can be addressed ...
Estimating the Cost of Extremely Large Telescopes
... how can costs be accurately estimated for systems that have not yet been designed? This paper discusses cost estimating methods and describes their application to estimating the cost of ELTs, showing that the best method to use during the conceptual design phase is parametric cost estimating. Exampl ...
... how can costs be accurately estimated for systems that have not yet been designed? This paper discusses cost estimating methods and describes their application to estimating the cost of ELTs, showing that the best method to use during the conceptual design phase is parametric cost estimating. Exampl ...
PDF - WM Keck Observatory
... provided by the TMT would provide scientists with a powerful new tool. TMT represents a big jump in the light collecting power. It will be the largest optical/IR observatory in the Northern Hemisphere ...
... provided by the TMT would provide scientists with a powerful new tool. TMT represents a big jump in the light collecting power. It will be the largest optical/IR observatory in the Northern Hemisphere ...
Semester 2016B - Gran Telescopio CANARIAS
... pages at http://www.gtc.iac.es/instruments/, following the links for OSIRIS and CIRCE. ...
... pages at http://www.gtc.iac.es/instruments/, following the links for OSIRIS and CIRCE. ...
1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s
... known globular star clusters in the Milky Way galaxy. Located about 28,000 lightyears from Earth, M80 contains hundreds of thousands of stars, all held together by their mutual gravitational attraction. Globular clusters are particularly useful for studying stellar evolution, since all of the stars ...
... known globular star clusters in the Milky Way galaxy. Located about 28,000 lightyears from Earth, M80 contains hundreds of thousands of stars, all held together by their mutual gravitational attraction. Globular clusters are particularly useful for studying stellar evolution, since all of the stars ...
Coating Gemini Telescopes with Protected Silver
... telescopes due to its durability and broad band reflective characteristics. In 2004, the Gemini Observatory became the first 8-m class telescope to coat its reflective optics with protected silver. Silver was chosen due to its high ...
... telescopes due to its durability and broad band reflective characteristics. In 2004, the Gemini Observatory became the first 8-m class telescope to coat its reflective optics with protected silver. Silver was chosen due to its high ...
9. Telescope structure and kinematics
... 100-m class telescope is one of the major challenges of the OWL project. The structure must provide sufficient bandpass for the motion control system as well as the required tracking accuracy and dimensional stability under varying gravity, thermal and wind loads. The achievable limits of structural ...
... 100-m class telescope is one of the major challenges of the OWL project. The structure must provide sufficient bandpass for the motion control system as well as the required tracking accuracy and dimensional stability under varying gravity, thermal and wind loads. The achievable limits of structural ...
Optronic Laboratories, Inc. The OL Series 730
... shows userwhat see happens whatinside is being themeasured solid housing ...
... shows userwhat see happens whatinside is being themeasured solid housing ...
Document
... Pupil rotates wrt post-focal NGS WFS at maximum speed ~15/s for a Zenith angle of 1°. Reconstruction matrix of low order modal loop to be updated every 10s High order loop reconstruction matrix (25GB of data) must be updated every 140s (LGS ...
... Pupil rotates wrt post-focal NGS WFS at maximum speed ~15/s for a Zenith angle of 1°. Reconstruction matrix of low order modal loop to be updated every 10s High order loop reconstruction matrix (25GB of data) must be updated every 140s (LGS ...
The Very precise Echelle SpectroPolarimeter on the Araki telescope
... realized with multi-slit masks located on the focal plane of the telescope. However, because these multi-purpose spectropolarimeters must have polarization modulators in the central position of the optical train, the instrumental polarization generated by the upstream lenses and/or the other optical ...
... realized with multi-slit masks located on the focal plane of the telescope. However, because these multi-purpose spectropolarimeters must have polarization modulators in the central position of the optical train, the instrumental polarization generated by the upstream lenses and/or the other optical ...
An Overview of Wide-Field-Of-View
... invention of photography [1]. Early survey instruments were nothing more than cameras and the optics were early camera lenses. Some of the better known optics were made by Voigtlander and Petzval [2]. As the technical characteristics of photography improved, larger versions of camera lenses were cus ...
... invention of photography [1]. Early survey instruments were nothing more than cameras and the optics were early camera lenses. Some of the better known optics were made by Voigtlander and Petzval [2]. As the technical characteristics of photography improved, larger versions of camera lenses were cus ...
Spike: AI Scheduling for Hubble Space Telescope After 18 Months
... such as described by Zwebenet al.[ll]. Oneof the open constraintviolations, as describedfurther below. research issues is whichtechnique has an advantage on Therepair heuristics usedby Spikeare basedon a very whichtypes of problems. successful neural networkarchitecture developedfor Spike [6,7] andl ...
... such as described by Zwebenet al.[ll]. Oneof the open constraintviolations, as describedfurther below. research issues is whichtechnique has an advantage on Therepair heuristics usedby Spikeare basedon a very whichtypes of problems. successful neural networkarchitecture developedfor Spike [6,7] andl ...
A detector telescope`s pitch angle sampling of
... area is divided into concentric rings and each annular area into segments of equal areas, the central points of which are taken as the representative points to cover the entire base area. Figure 5 illustrates the division into segments. The area of the nth annular ring is (2n + 1)πr ...
... area is divided into concentric rings and each annular area into segments of equal areas, the central points of which are taken as the representative points to cover the entire base area. Figure 5 illustrates the division into segments. The area of the nth annular ring is (2n + 1)πr ...
Lecture ppt - UCO/Lick Observatory
... • Dynamic range: stroke (total up and down range) – Typical “stroke” for astronomy depends on telescope diameter: ± several microns for 10 m telescope ± 10-15 microns for 30 m telescope ± For 10-20 microns for retinal imaging ...
... • Dynamic range: stroke (total up and down range) – Typical “stroke” for astronomy depends on telescope diameter: ± several microns for 10 m telescope ± 10-15 microns for 30 m telescope ± For 10-20 microns for retinal imaging ...
Deformable Mirrors Lecture 8
... • Segmented mirror with piston and tilt requires 1.8 times more actuators than continuous face-sheet mirror to achieve same fitting ...
... • Segmented mirror with piston and tilt requires 1.8 times more actuators than continuous face-sheet mirror to achieve same fitting ...
PDF only
... standard concave eyepieces to obtain an instrument that magnifies nine times. All possible combinations one may chose, be they OR1 and OR2 or other optical layouts given in Figure 1, will result in instruments of substantially larger overall length than the length of the telescope which Galileo disp ...
... standard concave eyepieces to obtain an instrument that magnifies nine times. All possible combinations one may chose, be they OR1 and OR2 or other optical layouts given in Figure 1, will result in instruments of substantially larger overall length than the length of the telescope which Galileo disp ...
Chap. 36 - UF Physics
... Wave Interference and Diffraction Part 3: Telescopes and Interferometry ...
... Wave Interference and Diffraction Part 3: Telescopes and Interferometry ...
The US Air Force Academy Falcon Telescope Network
... Fig. 6 is the typical arrangement for the various devices at the FTN site, with most of the equipment located within the observatory while a few of the network devices (e.g. router, switch, Linux computer and network attached storage (NAS)) are located in a nearby climate controlled room on site. Th ...
... Fig. 6 is the typical arrangement for the various devices at the FTN site, with most of the equipment located within the observatory while a few of the network devices (e.g. router, switch, Linux computer and network attached storage (NAS)) are located in a nearby climate controlled room on site. Th ...
The Surveyors` Heliotrope
... the U. S. Coast Survey and became its first superintendent in 1816. Apparently after having learned about the invention of the heliotrope, Hassler contacted Gauss directly and with the inventor’s assistance, obtained from Breithaupt a number of the instruments made to Gauss’s design. In a report to ...
... the U. S. Coast Survey and became its first superintendent in 1816. Apparently after having learned about the invention of the heliotrope, Hassler contacted Gauss directly and with the inventor’s assistance, obtained from Breithaupt a number of the instruments made to Gauss’s design. In a report to ...
Joint Scientific Opportunities with the Giant Magellan Telescope and
... multi-object spectrometer in conjunction with these deep S-Z observations will allow one to develop a detailed picture of the dynamic state of individual rich clusters. Observations of large samples of clusters, particularly over a wide range in redshift will reveal the processes by which clusters a ...
... multi-object spectrometer in conjunction with these deep S-Z observations will allow one to develop a detailed picture of the dynamic state of individual rich clusters. Observations of large samples of clusters, particularly over a wide range in redshift will reveal the processes by which clusters a ...
Lovell Telescope
The Lovell Telescope /ˈlʌvəl/ is a radio telescope at Jodrell Bank Observatory, near Goostrey, Cheshire in the north-west of England. When construction was finished in 1957, the telescope was the largest steerable dish radio telescope in the world at 76.2 m (250 ft) in diameter;it is now the third largest, after the Green Bank telescope in West Virginia, USA, and the Effelsberg telescope in Germany.It was originally known as the ""250 ft telescope"" or the Radio Telescope at Jodrell Bank, before becoming the Mark I telescope around 1961 when future telescopes (the Mark II, III, and IV) were being discussed. It was renamed to the Lovell Telescope in 1987 after Sir Bernard Lovell, and became a Grade I listed building in 1988. The telescope forms part of the MERLIN and European VLBI Network arrays of radio telescopes.Both Bernard Lovell and Charles Husband were knighted for their roles in creating the telescope. In September 2006, the telescope won the BBC's online competition to find the UK's greatest ""Unsung Landmark"". 2007 marked the 50th anniversary of the telescope.If the air is clear enough, the Mark I telescope can be seen from high-rise buildings in Manchester such as the Beetham Tower, and from as far away as the Pennines, Winter Hill in Lancashire, Snowdonia, Beeston Castle in Cheshire, and the Peak District. It can also be seen from the Terminal 1 restaurant area and departure lounges of Manchester Airport.