2. Astronomers` Tools - Lawrencehallofscience
... Nobel prize for this achievement in 2009. Today, it’s common for people to carry CCD cameras in their purses or pockets all the time, in the guise of mobile phones with cameras. CCDs have the ability to transfer electric charge along the surface of a semiconductor and can receive charge by convertin ...
... Nobel prize for this achievement in 2009. Today, it’s common for people to carry CCD cameras in their purses or pockets all the time, in the guise of mobile phones with cameras. CCDs have the ability to transfer electric charge along the surface of a semiconductor and can receive charge by convertin ...
Spectral Line Bandpass Removal Using a Median Filter
... subtracted from the signal can be recovered statistically by multiplying the noise subtracted by the width of the signal. However, for windows much wider than the signal, the baseline around the signal will be lowered by the same value and so the relative signal above the noise will not be missing a ...
... subtracted from the signal can be recovered statistically by multiplying the noise subtracted by the width of the signal. However, for windows much wider than the signal, the baseline around the signal will be lowered by the same value and so the relative signal above the noise will not be missing a ...
Crowdclass Supplemental Materials - Doris Jung
... • Galaxy collisions are rare events that don’t happen very frequently throughout the universe’s history. • Since galaxies are so large, collisions with other galaxies have very little influence on its shape and features. • (*) When galaxies merge, the turbluent gas inflowing into the interaction reg ...
... • Galaxy collisions are rare events that don’t happen very frequently throughout the universe’s history. • Since galaxies are so large, collisions with other galaxies have very little influence on its shape and features. • (*) When galaxies merge, the turbluent gas inflowing into the interaction reg ...
LLR
... 2. Silicon sensors (Kyushu, LLR) - Test different HPK designs: C-V, I-V. - Laser tests: xtalk via GR. - Plan: Irradiation tests (g,n) (also Tokyo) 3. DAQ electronics (Kyushu, LLR) - FE chip SKIROC2 developed by W group (Ecole polytechnique) - 3 new PCBs, design+industrial production a) with sensor ...
... 2. Silicon sensors (Kyushu, LLR) - Test different HPK designs: C-V, I-V. - Laser tests: xtalk via GR. - Plan: Irradiation tests (g,n) (also Tokyo) 3. DAQ electronics (Kyushu, LLR) - FE chip SKIROC2 developed by W group (Ecole polytechnique) - 3 new PCBs, design+industrial production a) with sensor ...
How To Buy Your First Telescope
... constructed the first working reflecting telescope in 1668. It had a mirror 1.3 inches across and a tube 6 inches long. Today, every “Newtonian” reflector contains two mirrors — a large curved one called the “primary” at the bottom of the tube, and a small flat “secondary” near the top. Light enters ...
... constructed the first working reflecting telescope in 1668. It had a mirror 1.3 inches across and a tube 6 inches long. Today, every “Newtonian” reflector contains two mirrors — a large curved one called the “primary” at the bottom of the tube, and a small flat “secondary” near the top. Light enters ...
Milky Way Kinematics, or how we discovered the geometry and
... Mapping the Galaxy using neutral hydrogen gas: Henk van de Hulst realized that neutral hydrogen gas emits radio waves of 21 cm wavelength. This radiation goes clear across the Galaxy without absorption. Small radio telescope left in Holland by German army was then used to map the entire galactic dis ...
... Mapping the Galaxy using neutral hydrogen gas: Henk van de Hulst realized that neutral hydrogen gas emits radio waves of 21 cm wavelength. This radiation goes clear across the Galaxy without absorption. Small radio telescope left in Holland by German army was then used to map the entire galactic dis ...
ALMA band 9 optical layout
... cartridge is discussed. Mainly the ALMA frequency band 9 (602-720 GHz) is considered. However the same design approach is applicable to the receiver optics of any other ALMA bands. The high frequency cartridges (bands 7-10) have been decided to have no intermediate optics between the telescope secon ...
... cartridge is discussed. Mainly the ALMA frequency band 9 (602-720 GHz) is considered. However the same design approach is applicable to the receiver optics of any other ALMA bands. The high frequency cartridges (bands 7-10) have been decided to have no intermediate optics between the telescope secon ...
laser room - CERN Indico
... Compressor and Telescope are at the merging point Flat-top beam focusing profiles Focusing of a 430 mJ flat-top beam 25 m downstream to the middle of the plasma. At the ideal Gaussian waist Wmax = 6.84 J/cm2 and FWHM = 2.35 mm. Flat-top beam focusing has been optimized to obtain the same maximum fl ...
... Compressor and Telescope are at the merging point Flat-top beam focusing profiles Focusing of a 430 mJ flat-top beam 25 m downstream to the middle of the plasma. At the ideal Gaussian waist Wmax = 6.84 J/cm2 and FWHM = 2.35 mm. Flat-top beam focusing has been optimized to obtain the same maximum fl ...
Spectral Characteristics of High-Order Harmonics
... Grazing-incidence stigmatic spectrometers for extended regions (2/2) The stigmaticity is guaranteed in an extended field-of-view parallel to the entrance slit only in normal-incidence configurations Stigmatic spectrometers with a single optic, namely the grating, are being successfully used in EUV ...
... Grazing-incidence stigmatic spectrometers for extended regions (2/2) The stigmaticity is guaranteed in an extended field-of-view parallel to the entrance slit only in normal-incidence configurations Stigmatic spectrometers with a single optic, namely the grating, are being successfully used in EUV ...
SPACE TELESCOPE SCIENCE INSTITUTE Bright Object Alerts
... change the status of an alert from Pending to Waived. New alerts are generated every time NGSS is run. All alerts are stored in ASSIST until manually purged, and are time-stamped. The newest alerts for an obset must have a status of Waived in order to execute the observation. ...
... change the status of an alert from Pending to Waived. New alerts are generated every time NGSS is run. All alerts are stored in ASSIST until manually purged, and are time-stamped. The newest alerts for an obset must have a status of Waived in order to execute the observation. ...
SKA Wideband Feeds Need Differential LNA`s
... 11-25 GHz Receiver - A low noise receiver covering this high frequency range will be developed over a 3-year starting in 2009. It is not clear at this time whether the receiver can be included as part of the 1-11 GHz system or if the SKA antenna will support higher frequencies. ...
... 11-25 GHz Receiver - A low noise receiver covering this high frequency range will be developed over a 3-year starting in 2009. It is not clear at this time whether the receiver can be included as part of the 1-11 GHz system or if the SKA antenna will support higher frequencies. ...
Burge Proc SPIE 4840 226 - LOFT, Large Optics Fabrication and
... Other polishing methods have more stringent limitations for the aspheric departure that they can handle. Also, depending on the control system, the low order errors in the segments may not be controlled based on wavefront measurements, especially for the case of many hundreds of small segments. So t ...
... Other polishing methods have more stringent limitations for the aspheric departure that they can handle. Also, depending on the control system, the low order errors in the segments may not be controlled based on wavefront measurements, especially for the case of many hundreds of small segments. So t ...
The INTERSTELLAR MEDIUM
... (in order of decreasing T) • SHOCK HEATED (or coronal gas): Highly ionized T between 105 and 106 K n between 10-4 and 10-3 cm-3 About 1 percent of ISM mass About 1/2 of ISM volume first found only in 1970s via UV absorption lines and later by X-ray emission • H II REGIONS: Moderately ionized 8000 K ...
... (in order of decreasing T) • SHOCK HEATED (or coronal gas): Highly ionized T between 105 and 106 K n between 10-4 and 10-3 cm-3 About 1 percent of ISM mass About 1/2 of ISM volume first found only in 1970s via UV absorption lines and later by X-ray emission • H II REGIONS: Moderately ionized 8000 K ...
3. Daylight Mapping
... For daylight mapping the input FoV (before the Optical Derotator) is not rotating and is not possible to make it rotating. Without loosing of generality, we simulate an instantaneous situation where the input FoV is oriented with North pointing vertically (i.e. along gravity vector) upward w.r.t. th ...
... For daylight mapping the input FoV (before the Optical Derotator) is not rotating and is not possible to make it rotating. Without loosing of generality, we simulate an instantaneous situation where the input FoV is oriented with North pointing vertically (i.e. along gravity vector) upward w.r.t. th ...
The World-Wide Telescope, an Archetype for Online
... This FTP-GREP metaphor does not work for terabyte-sized the 1950’s using photographic plates. Originally it was datasets. You can GREP or FTP a gigabyte in a minute. published via prints on plastic film, for about $25K per copy. That data has now been digitized and is on the Internet for free. Sever ...
... This FTP-GREP metaphor does not work for terabyte-sized the 1950’s using photographic plates. Originally it was datasets. You can GREP or FTP a gigabyte in a minute. published via prints on plastic film, for about $25K per copy. That data has now been digitized and is on the Internet for free. Sever ...
How to Buy your First Telescope
... constructed the first working reflecting telescope in 1668. It had a mirror 1.3 inches across and a tube 6 inches long. Today, every “Newtonian” reflector contains two mirrors — a large curved one called the “primary” at the bottom of the tube, and a small flat “secondary” near the top. Light enters ...
... constructed the first working reflecting telescope in 1668. It had a mirror 1.3 inches across and a tube 6 inches long. Today, every “Newtonian” reflector contains two mirrors — a large curved one called the “primary” at the bottom of the tube, and a small flat “secondary” near the top. Light enters ...
acc
... – Have its own model of grammatical constraints – In the best case, solve a set of constraints the partial parser includes with its output ...
... – Have its own model of grammatical constraints – In the best case, solve a set of constraints the partial parser includes with its output ...
Michael Ouzounian
... The most important component of a telescope is the lens. Likewise, one of the most important factors with lenses is their aperture. Aperture is quite simply the diameter of a lens from edge to edge, in this case, expressed in millimeters. Generally, a change in aperture will constitute several thing ...
... The most important component of a telescope is the lens. Likewise, one of the most important factors with lenses is their aperture. Aperture is quite simply the diameter of a lens from edge to edge, in this case, expressed in millimeters. Generally, a change in aperture will constitute several thing ...
Hard X-ray Sky - High Energy Astrophysics
... Sub-giants with WD cores are gravitational wave LISA triggers. ...
... Sub-giants with WD cores are gravitational wave LISA triggers. ...
No Slide Title
... • To understand the main concepts behind adaptive optics systems • To understand how to do astronomical observations with AO – Planning, reducing, and interpreting data (your own data, but perhaps more importantly other people’s data) – Some of this will apply to AO for vision science as well ...
... • To understand the main concepts behind adaptive optics systems • To understand how to do astronomical observations with AO – Planning, reducing, and interpreting data (your own data, but perhaps more importantly other people’s data) – Some of this will apply to AO for vision science as well ...