The Search for Directed Intelligence
... In all of these cases the fact that the laser linewidth (bandwidth) is extremely narrow (from kHz to GHz depending on the laser design) and the field of view is extremely narrow, mitigates these effects which would otherwise be overwhelming for a broadband photometric band survey. Heterodyning is al ...
... In all of these cases the fact that the laser linewidth (bandwidth) is extremely narrow (from kHz to GHz depending on the laser design) and the field of view is extremely narrow, mitigates these effects which would otherwise be overwhelming for a broadband photometric band survey. Heterodyning is al ...
Design, fabrication, and open-loop control of micro deformable mirrors for Contents
... AO and MEMS DMs: relevance to astronomy and space science Adaptive optics on large ground-based telescopes has resulted in a surge of new astronomical discoveries over the past few years, some examples of which are illustrated in Figure 3. Using AO, scientists around the world have produced what Sci ...
... AO and MEMS DMs: relevance to astronomy and space science Adaptive optics on large ground-based telescopes has resulted in a surge of new astronomical discoveries over the past few years, some examples of which are illustrated in Figure 3. Using AO, scientists around the world have produced what Sci ...
Discovery of two new satellites of Pluto
... WFC2) butted together, effectively forming a single 4,096 £ 4,096 pixel camera with a gap of ,50 pixels between the two CCDs. The F606W (‘Broad V’) filter, which has a centre wavelength of 591.8 nm and a width of 67.2 nm, was used for all images. At the time of the observations, Pluto was 31.0 astro ...
... WFC2) butted together, effectively forming a single 4,096 £ 4,096 pixel camera with a gap of ,50 pixels between the two CCDs. The F606W (‘Broad V’) filter, which has a centre wavelength of 591.8 nm and a width of 67.2 nm, was used for all images. At the time of the observations, Pluto was 31.0 astro ...
LaPalma_telescopes_2008
... The example shown is for a star imaged by HST/NICMOS as part of the Hubble Deep Field South campaign. The centre of the NICMOS pixels are about 20% more sensitive than the edges CCDs also have variations, typically smaller than the NICMOS example This is worse in the undersampled case ...
... The example shown is for a star imaged by HST/NICMOS as part of the Hubble Deep Field South campaign. The centre of the NICMOS pixels are about 20% more sensitive than the edges CCDs also have variations, typically smaller than the NICMOS example This is worse in the undersampled case ...
orion® skyView Pro™ EQ Mount
... The SkyView Pro equatorial mount is designed to hold telescope tubes weighing up to approximately 20 lbs. For heavier telescopes, the mount may not provide sufficient stability for steady imaging. Any type of telescope can be mounted on the SkyView Pro, including refractors, Newtonian reflectors, an ...
... The SkyView Pro equatorial mount is designed to hold telescope tubes weighing up to approximately 20 lbs. For heavier telescopes, the mount may not provide sufficient stability for steady imaging. Any type of telescope can be mounted on the SkyView Pro, including refractors, Newtonian reflectors, an ...
A Space-Qualified Transmitter System for Heterodyne Optical Communications
... those electronic circuits which can be remotely located within the spacecraft structure. The OMS, designed to be located on the earthfacing panel of the ACTS spacecraft, includes a benchlike structure supported by a truss network that provides thermal and vibrational isolation from the host vehicle. ...
... those electronic circuits which can be remotely located within the spacecraft structure. The OMS, designed to be located on the earthfacing panel of the ACTS spacecraft, includes a benchlike structure supported by a truss network that provides thermal and vibrational isolation from the host vehicle. ...
SGR 1900+14
... GRB prompt emission peak fluxes: 10-8-10-3 ergs/cm2 s X-ray afterglows of long bursts: ~10-11 – 10-13 ergs/cm2 s Previous giant flares: ~10-3 ergs/cm2 s Typical SGR bursts: 10-9 – 10-6 ergs/cm2 s ...
... GRB prompt emission peak fluxes: 10-8-10-3 ergs/cm2 s X-ray afterglows of long bursts: ~10-11 – 10-13 ergs/cm2 s Previous giant flares: ~10-3 ergs/cm2 s Typical SGR bursts: 10-9 – 10-6 ergs/cm2 s ...
ISA_lecture02
... The EM spectrum covers a range >1020 in wavelength. The Planck-Einstein relation E hf ...
... The EM spectrum covers a range >1020 in wavelength. The Planck-Einstein relation E hf ...
SpeX Observing Manual - NASA Infrared Telescope Facility
... SpeX feed the MORIS CCD camera attached to the side of SpeX to enable guiding in the visible. MORIS is a collaboration between MIT and IRTF. It became an IRTF facility instrument in 2012. MORIS is also used as a scientific CCD imager and for simultaneous optical and IR observations in conjunction wi ...
... SpeX feed the MORIS CCD camera attached to the side of SpeX to enable guiding in the visible. MORIS is a collaboration between MIT and IRTF. It became an IRTF facility instrument in 2012. MORIS is also used as a scientific CCD imager and for simultaneous optical and IR observations in conjunction wi ...
Ellerbroek
... – Elevation structure path, including pupil relay optics and pointing/centering mirrors for misalignment compensation – Top-end beam quality, power, and alignment sensors – Optics for asterism generation, de-rotation, and fast tip/tilt correction ...
... – Elevation structure path, including pupil relay optics and pointing/centering mirrors for misalignment compensation – Top-end beam quality, power, and alignment sensors – Optics for asterism generation, de-rotation, and fast tip/tilt correction ...
Concept and performance of multiple laser guide stars for 8-m
... DM to a plane at a specified distance from the telescope pupil. Tallon and Foy4 suggested to consider phase screens as a mosaic of coherence areas. All the area are sensed by at least one artificial guide star. The problem is then considered as a linear system: the unknowns are the phase perturbatio ...
... DM to a plane at a specified distance from the telescope pupil. Tallon and Foy4 suggested to consider phase screens as a mosaic of coherence areas. All the area are sensed by at least one artificial guide star. The problem is then considered as a linear system: the unknowns are the phase perturbatio ...
Astronomical seeing conditions as determined by turbulence modelling and optical measurement
... hereby submit for the degree Master of Science, Faculty of Natural and Agricultural Sciences at the University of Pretoria, is my own work except where acknowledgements indicate otherwise. This work has not previously been submitted by me for another degree at this or any other tertiary institution. ...
... hereby submit for the degree Master of Science, Faculty of Natural and Agricultural Sciences at the University of Pretoria, is my own work except where acknowledgements indicate otherwise. This work has not previously been submitted by me for another degree at this or any other tertiary institution. ...
Gamma Ray Bursts
... BATSE / GRO Designed to record data on tape and transmit while flying over USA In 1992, tape recorders broken NASA built telemetric stations in Africa and Australia Thanks to direct transmision ground based telescopes could immediately follow the bursts ...
... BATSE / GRO Designed to record data on tape and transmit while flying over USA In 1992, tape recorders broken NASA built telemetric stations in Africa and Australia Thanks to direct transmision ground based telescopes could immediately follow the bursts ...
Full Presentation Here
... Active Galactic Nuclei refers to galaxies with a central region where high-energetic processes take place. • AGN have been found in all wavelength and they showed emission up to TeV energies. ...
... Active Galactic Nuclei refers to galaxies with a central region where high-energetic processes take place. • AGN have been found in all wavelength and they showed emission up to TeV energies. ...
System Level # Requirements Document
... interpretation of the imaging discoveries of the Hubble Space Telescope, Chandra X-ray Observatory, Compton Gamma-ray Observatory, Spitzer Space Telescope, and other forefront facilities. In addition to being a very powerful standalone facility, TMT will similarly complement future observatories bot ...
... interpretation of the imaging discoveries of the Hubble Space Telescope, Chandra X-ray Observatory, Compton Gamma-ray Observatory, Spitzer Space Telescope, and other forefront facilities. In addition to being a very powerful standalone facility, TMT will similarly complement future observatories bot ...
Omni XLT Manual - Celestron.UK.COM
... needed reference material and helpful hints guaranteed to make your observing experience as simple and pleasurable as possible. Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to consider before using your telescope that will ensure you ...
... needed reference material and helpful hints guaranteed to make your observing experience as simple and pleasurable as possible. Your telescope is designed to give you years of fun and rewarding observations. However, there are a few things to consider before using your telescope that will ensure you ...
A Bluetooth Telescope Controller - ATM
... The 30F4011 DSC contains the software that basically converts LX-200 commands into pulses for the steppers. This sounds simpler than it is in reality: the command “go to this RA-Dec coordinate” requires these equatorial coordinates to be transformed into telescope based Hor-Ele reference system, whi ...
... The 30F4011 DSC contains the software that basically converts LX-200 commands into pulses for the steppers. This sounds simpler than it is in reality: the command “go to this RA-Dec coordinate” requires these equatorial coordinates to be transformed into telescope based Hor-Ele reference system, whi ...
Slide 1
... Red error bars: Includes noise increase from subtracting 220 GHz to remove mid lat dust ...
... Red error bars: Includes noise increase from subtracting 220 GHz to remove mid lat dust ...
the spectral irradiance of the moon
... ring of a fork equatorial mount. The telescopes are RitcheyChrétien design with 8 inch (20 cm) diameter primary mirrors. The focal length for each telescope is set to allow an image of the Moon at perigee to fall entirely within its detector array, close to 1 m for both. The brightness difference b ...
... ring of a fork equatorial mount. The telescopes are RitcheyChrétien design with 8 inch (20 cm) diameter primary mirrors. The focal length for each telescope is set to allow an image of the Moon at perigee to fall entirely within its detector array, close to 1 m for both. The brightness difference b ...
Atmospheric-Turbulence Compensation Experiments Using
... function of the facility is to perform precision optical tracking ofsatellites to determine their orbital parameters. To support this task, the site contractor maintains several optical telescopes and beam directors. For our experiments, we installed the adaptive optics system on one of the smaller ...
... function of the facility is to perform precision optical tracking ofsatellites to determine their orbital parameters. To support this task, the site contractor maintains several optical telescopes and beam directors. For our experiments, we installed the adaptive optics system on one of the smaller ...
- River Bend Astronomy Club
... imaging system — at the sky in October 1995, he discovered asteroids. Following that initial thrill, the amateur astronomer and senior editor at Sky & Telescope magazine went on to nab dozens more. His success underscores a new reality that’s quickening amateur astronomers’ blood as data streams thr ...
... imaging system — at the sky in October 1995, he discovered asteroids. Following that initial thrill, the amateur astronomer and senior editor at Sky & Telescope magazine went on to nab dozens more. His success underscores a new reality that’s quickening amateur astronomers’ blood as data streams thr ...
XMM-Newton
The XMM-Newton, also known as the X-ray Multi-Mirror Mission and the High Throughput X-ray Spectroscopy Mission, is an orbiting X-ray observatory launched by ESA in December 1999 on an Ariane 5 rocket. It is named in honor of Sir Isaac Newton. The telescope was placed in a very eccentric 48 hour elliptical orbit at 40°; at its apogee it is nearly 114,000 kilometres (71,000 mi) from Earth, while the perigee is only 7,000 kilometres (4,300 mi).