Comets to Cosmology - Nrao - National Radio Astronomy Observatory
... sensitivity will transform astrometry at short wavelengths. It will provide such an increase in sensitivity for mm-wave astrometry that the results can hardly be predicted, but it will allow a parallactic measurement of the distance to the Galactic Center, fixing the fundamental distance scale of th ...
... sensitivity will transform astrometry at short wavelengths. It will provide such an increase in sensitivity for mm-wave astrometry that the results can hardly be predicted, but it will allow a parallactic measurement of the distance to the Galactic Center, fixing the fundamental distance scale of th ...
Additive manufacturing and high resolution X-ray optics
... optics and the X-ray domain. Goal: To design and build some X-ray reflecting prototypes that show potential for a golden quadrant future X-ray telescope. ...
... optics and the X-ray domain. Goal: To design and build some X-ray reflecting prototypes that show potential for a golden quadrant future X-ray telescope. ...
Nano-Accuracy Surface Figure Metrology of Precision Optics
... lasers (XFEL), laser ignition facilities, freeform optics and so on. 2.1 Nano-accuracy requirement of synchrotron optics Hard X-rays produced by synchrotron radiation (SR) sources are important tools for chemical, elemental, and structural analyses of matter at the nano- and atomic scale and for elu ...
... lasers (XFEL), laser ignition facilities, freeform optics and so on. 2.1 Nano-accuracy requirement of synchrotron optics Hard X-rays produced by synchrotron radiation (SR) sources are important tools for chemical, elemental, and structural analyses of matter at the nano- and atomic scale and for elu ...
with parabolic mirrors
... Polarization switching (P/S) High γ-ray flux High intensity laser beam ...
... Polarization switching (P/S) High γ-ray flux High intensity laser beam ...
The Hubble Space Telescope Optical Systems Failure Report
... Project Manager announced this failure on June 21, 1990. Both of the highresolution imaging cameras (the Wide Fieldplanetary Camera and the Faint Object Camera) showed the same characteristic distortion, called spherical aberration, that must have originated in the primary mirror, the secondary mirr ...
... Project Manager announced this failure on June 21, 1990. Both of the highresolution imaging cameras (the Wide Fieldplanetary Camera and the Faint Object Camera) showed the same characteristic distortion, called spherical aberration, that must have originated in the primary mirror, the secondary mirr ...
The Hubble Space Telescope Optical Systems Failure Report
... Project Manager announced this failure on June 21, 1990. Both of the highresolution imaging cameras (the Wide Fieldplanetary Camera and the Faint Object Camera) showed the same characteristic distortion, called spherical aberration, that must have originated in the primary mirror, the secondary mirr ...
... Project Manager announced this failure on June 21, 1990. Both of the highresolution imaging cameras (the Wide Fieldplanetary Camera and the Faint Object Camera) showed the same characteristic distortion, called spherical aberration, that must have originated in the primary mirror, the secondary mirr ...
SEI Structure Development - LIGO
... Prototype cost basis for optical lever receiver and Hartmann sensors Engineering cost estimate for TCS ring heaters PO mirror suspension engineering estimate based on quad SUS prototype * For LIGO estimating, contingency was first estimated using a standard qualitative process to assign risk factors ...
... Prototype cost basis for optical lever receiver and Hartmann sensors Engineering cost estimate for TCS ring heaters PO mirror suspension engineering estimate based on quad SUS prototype * For LIGO estimating, contingency was first estimated using a standard qualitative process to assign risk factors ...
Galileo, my first term paper
... turned his telescope on the night sky and began to make remarkable discoveries. In about two months he made more discoveries that changed the world than anyone has ever made before or since. ...
... turned his telescope on the night sky and began to make remarkable discoveries. In about two months he made more discoveries that changed the world than anyone has ever made before or since. ...
Quantum theory of high-resolution length measurement with a Fabry
... It is assumed throughout that the cavity is excited through one of its mirrors by a beam of coherent light with a narrow spread of frequencies . It has been pointed out by Caves [6] that the length resolution of a Michelson interferometer can in principle be improved by the injection of squeezed vac ...
... It is assumed throughout that the cavity is excited through one of its mirrors by a beam of coherent light with a narrow spread of frequencies . It has been pointed out by Caves [6] that the length resolution of a Michelson interferometer can in principle be improved by the injection of squeezed vac ...
G050426-00 - DCC
... Misalignments and mismatching effects has been modeled to recognize “strange” resonant modes No way to distinguish between them ...
... Misalignments and mismatching effects has been modeled to recognize “strange” resonant modes No way to distinguish between them ...
English - Keeler Support
... All Keeler loupes are supplied with protective caps. These are designed to be a push fit. We recommend these be worn at all times to help protect the lenses. Lens caps may be washed or autoclaved as necessary. +1D lens caps can be ordered separately. They reduce the working distance and are useful i ...
... All Keeler loupes are supplied with protective caps. These are designed to be a push fit. We recommend these be worn at all times to help protect the lenses. Lens caps may be washed or autoclaved as necessary. +1D lens caps can be ordered separately. They reduce the working distance and are useful i ...
... The astronomical measurements performed with Gaia will be accurate to 24 microarcsec, about 100 times more accurate than its predecessor Hipparcos, and comparable to measuring the diameter of a human hair at a distance of 1000 kilometres. To achieve this extreme accuracy at a minimum operational te ...
Asteroids
... have orbital periods of three to six years. • Not all orbits around the Sun are populated with asteroids because the motion of the main planets interferes with some orbits and makes them unstable for asteroids. • The majority of asteroids are in the Asteroid Belt with distances from the Sun between ...
... have orbital periods of three to six years. • Not all orbits around the Sun are populated with asteroids because the motion of the main planets interferes with some orbits and makes them unstable for asteroids. • The majority of asteroids are in the Asteroid Belt with distances from the Sun between ...
New initiatives - Major Instrumentation
... 16-20 mm spectrograph will be large. Diffraction limit at 20 microns is about ¼ arc-second, comparable to native seeing limit. Echelle grating is 1.5 meters in length! Overall instrument is expected to take up a volume of about 4 by 2 by 3 meters! All of which needs to be cryogenically cooled. Instr ...
... 16-20 mm spectrograph will be large. Diffraction limit at 20 microns is about ¼ arc-second, comparable to native seeing limit. Echelle grating is 1.5 meters in length! Overall instrument is expected to take up a volume of about 4 by 2 by 3 meters! All of which needs to be cryogenically cooled. Instr ...
G060291-00 - DCC
... S5 is intended to collect one year of integrated coincident data at design sensitivity. S5 began in November 2005. Calendar duration depends on duty cycle. Duty cycle goal is ~70% for triple coincidence. So far, we have achieved about 45%. ...
... S5 is intended to collect one year of integrated coincident data at design sensitivity. S5 began in November 2005. Calendar duration depends on duty cycle. Duty cycle goal is ~70% for triple coincidence. So far, we have achieved about 45%. ...
Transparencies - Rencontres de Moriond
... • The LSST Telescope and Camera • Dark Energy Science • Schedule and Plans ...
... • The LSST Telescope and Camera • Dark Energy Science • Schedule and Plans ...
GMT site, enclosure, and facilities design and development
... The GMT summit site, at Las Campanas Peak, was initially leveled in 2012. Site construction work has since resumed starting in early 2015, and includes site infrastructure and rough grading. Site infrastructure work complete comprises of the installation of the permanent power and communications lin ...
... The GMT summit site, at Las Campanas Peak, was initially leveled in 2012. Site construction work has since resumed starting in early 2015, and includes site infrastructure and rough grading. Site infrastructure work complete comprises of the installation of the permanent power and communications lin ...
High speed and High precision pyramid wavefront sensor. In labs
... Figure 8. Comparison between simulation and experiments (unmodulated case) for different tip/tilt aberrations. ...
... Figure 8. Comparison between simulation and experiments (unmodulated case) for different tip/tilt aberrations. ...
Very Large Telescope
The Very Large Telescope (VLT) is a telescope operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. The VLT consists of four individual telescopes, each with a primary mirror 8.2 m across, which are generally used separately but can be used together to achieve very high angular resolution. The four separate optical telescopes are known as Antu, Kueyen, Melipal and Yepun, which are all words for astronomical objects in the Mapuche language. The telescopes form an array which is complemented by four movable Auxiliary Telescopes (ATs) of 1.8 m aperture.The VLT operates at visible and infrared wavelengths. Each individual telescope can detect objects roughly four billion times fainter than can be detected with the naked eye, and when all the telescopes are combined, the facility can achieve an angular resolution of about 0.001 arc-second (This is equivalent to roughly 2 meters resolution at the distance of the Moon).In single telescope mode of operation angular resolution is about 0.05 arc-second.The VLT is the most productive ground-based facility for astronomy, with only the Hubble Space Telescope generating more scientific papers among facilities operating at visible wavelengths. Among the pioneering observations carried out using the VLT are the first direct image of an exoplanet, the tracking of individual stars moving around the supermassive black hole at the centre of the Milky Way, and observations of the afterglow of the furthest known gamma-ray burst.