Deep Chandra Observations of the Arches and Quintuplet Clusters at... Hui Dong Q. Daniel Wang ( &
... The diffuse emission has a spectrum that is substantially harder than that of the point-like sources. In the core region (e.g. ≤ 15”, for Arches). The potential contamination of faint undetected point-like sources could be upto ∼ 65%, but mostly at energies ≤ 4 keV. The remaining diffuse emission ca ...
... The diffuse emission has a spectrum that is substantially harder than that of the point-like sources. In the core region (e.g. ≤ 15”, for Arches). The potential contamination of faint undetected point-like sources could be upto ∼ 65%, but mostly at energies ≤ 4 keV. The remaining diffuse emission ca ...
Student Project - Ott Planetarium
... energy ultraviolet radiation. The atmosphere also blocks much of the infrared spectrum. That’s great for living things, but it also means there’s a lot to “see” beyond what our atmosphere allows. If we want to observe in these wavelengths, we need to position our instruments above the atmosphere. Th ...
... energy ultraviolet radiation. The atmosphere also blocks much of the infrared spectrum. That’s great for living things, but it also means there’s a lot to “see” beyond what our atmosphere allows. If we want to observe in these wavelengths, we need to position our instruments above the atmosphere. Th ...
Circumstellar interaction of supernovae and gamma-ray bursts
... Gamma-ray burst They were discovered serendipitously in the late 1960s by U.S. military satellites which were on the look out for Soviet nuclear testing in violation of the atmospheric nuclear test ban treaty. These satellites carried gamma ray detectors since a nuclear explosion produces gamma ray ...
... Gamma-ray burst They were discovered serendipitously in the late 1960s by U.S. military satellites which were on the look out for Soviet nuclear testing in violation of the atmospheric nuclear test ban treaty. These satellites carried gamma ray detectors since a nuclear explosion produces gamma ray ...
X-ray Binaries in Nearby Galaxies
... ~ 100 known 'low-mass' XRBs ~ 30 known 'high-mass' XRBs long-standing problem with distance estimates: very hard to study the X-ray luminosity function and spatial distribution other properties, e.g., orbital period, donor masses known only for a few systems ...
... ~ 100 known 'low-mass' XRBs ~ 30 known 'high-mass' XRBs long-standing problem with distance estimates: very hard to study the X-ray luminosity function and spatial distribution other properties, e.g., orbital period, donor masses known only for a few systems ...
Gamma Rays - Ohio University Physics and Astronomy
... DW = solid angle over which g-ray flux is impinging on the detector Aeff = effective detector area = A*cosQ*Pdet Tobs = Integration (observing) time ...
... DW = solid angle over which g-ray flux is impinging on the detector Aeff = effective detector area = A*cosQ*Pdet Tobs = Integration (observing) time ...
Evaluation of Satellite Sounding Products Using NOAA PROducts Validation System (NPROVS)
... Raob-minus-COSMIC temperature difference for May 2008- August 2011. Dark curves denote the statistics computed using ALL sample, and curves of other colors for different solar elevation angles as indicated by the legend. Examples of three sonde types are given. Sondes tend to show radiation-induced ...
... Raob-minus-COSMIC temperature difference for May 2008- August 2011. Dark curves denote the statistics computed using ALL sample, and curves of other colors for different solar elevation angles as indicated by the legend. Examples of three sonde types are given. Sondes tend to show radiation-induced ...
Galaxy clusters - University of Iowa Astrophysics
... source, we can figure out the total mass in the lens. This provides an independent confirmation of dark matter. • A lense can act as a huge telescope. The deepest images of the most distant galaxies are obtained with clusters acting as gravitational lenses. ...
... source, we can figure out the total mass in the lens. This provides an independent confirmation of dark matter. • A lense can act as a huge telescope. The deepest images of the most distant galaxies are obtained with clusters acting as gravitational lenses. ...
eROSITA Mission Definition Document
... penetrate these cocoons, i.e. at hard X-rays and in the Infrared, can these phenomena be studied. Deep surveys in the hard X-ray range with Chandra and XMM-Newton, in the mid-infrared with ISO and in the sub-mm with the SCUBA and MAMBO bolometers, together with population synthesis models, have show ...
... penetrate these cocoons, i.e. at hard X-rays and in the Infrared, can these phenomena be studied. Deep surveys in the hard X-ray range with Chandra and XMM-Newton, in the mid-infrared with ISO and in the sub-mm with the SCUBA and MAMBO bolometers, together with population synthesis models, have show ...
Galaxy clusters - University of Iowa Astrophysics
... source, we can figure out the total mass in the lens. This provides an independent confirmation of dark matter. • A lense can act as a huge telescope. The deepest images of the most distant galaxies are obtained with clusters acting as gravitational lenses. ...
... source, we can figure out the total mass in the lens. This provides an independent confirmation of dark matter. • A lense can act as a huge telescope. The deepest images of the most distant galaxies are obtained with clusters acting as gravitational lenses. ...
the Full Chapter 6 -
... these higher energy forms of radiation. Studying them is important to help understand the violent Universe of hot stars, supernova explosions, black holes, colliding galaxies and merging clusters. NASA’s ultraviolet space telescope GALEX, launched in April 2003, has studied young, hot stars in hundr ...
... these higher energy forms of radiation. Studying them is important to help understand the violent Universe of hot stars, supernova explosions, black holes, colliding galaxies and merging clusters. NASA’s ultraviolet space telescope GALEX, launched in April 2003, has studied young, hot stars in hundr ...
abstract submission - MOST - University of British Columbia
... Universe; and detecting the first reflected light from orbiting exoplanets and using it to determine the composition of their atmospheres. To make these measurements, MOST incorporates into a microsatellite design a small (15 cm aperture), high-photometric-precision optical telescope and a high perf ...
... Universe; and detecting the first reflected light from orbiting exoplanets and using it to determine the composition of their atmospheres. To make these measurements, MOST incorporates into a microsatellite design a small (15 cm aperture), high-photometric-precision optical telescope and a high perf ...
Slide 1
... In 1572, the Danish astronomer Tycho Brahe observed and studied the explosion of a star that became known as Tycho's Supernova. More than four centuries later, Chandra's image of the supernova remnant shows an expanding bubble of multimillion degree debris (green and red) inside a more rapidly movin ...
... In 1572, the Danish astronomer Tycho Brahe observed and studied the explosion of a star that became known as Tycho's Supernova. More than four centuries later, Chandra's image of the supernova remnant shows an expanding bubble of multimillion degree debris (green and red) inside a more rapidly movin ...
THE CITY OF GRETNA PUBLIC OBSERVATORY Educational and
... operation are 7 to 10 p.m. during the winter, and changing to (depending on the onset of darkness) 8 or 8:30 to 11:00 p.m. during the summer. The transition from summer to winter hours is triggered by the onset and ending of daylight savings time. The observatory offers viewing through a pier mounte ...
... operation are 7 to 10 p.m. during the winter, and changing to (depending on the onset of darkness) 8 or 8:30 to 11:00 p.m. during the summer. The transition from summer to winter hours is triggered by the onset and ending of daylight savings time. The observatory offers viewing through a pier mounte ...
X-Ray Telescopes
... both surfaces are focused and form an image. Wolter, attempting to produce systems for x-ray microscopy, produced three designs, referred to as Wolter types I, II and III. The type I telescope (figure 2) consists of a paraboloid as a primary mirror and a confocal and coaxial hyperboloid as the secon ...
... both surfaces are focused and form an image. Wolter, attempting to produce systems for x-ray microscopy, produced three designs, referred to as Wolter types I, II and III. The type I telescope (figure 2) consists of a paraboloid as a primary mirror and a confocal and coaxial hyperboloid as the secon ...
FirstLight 2011-09_10_Final.pub
... one of several Russian communication satellites that occupy a special orbit call a molniya, named after the first satellite system to use this orbit. Russia possesses a couple of disadvantages in communication technology, both owing to its northerly latitude. The first is that their primary space po ...
... one of several Russian communication satellites that occupy a special orbit call a molniya, named after the first satellite system to use this orbit. Russia possesses a couple of disadvantages in communication technology, both owing to its northerly latitude. The first is that their primary space po ...
Flying Laptop Academic Small Satellite Flying
... space environment. This also allowed cost effective testing of the Attitude Control System and will ease the analyses of failure cases during operation. Launch The Flying Laptop satellite will be launched as a secondary payload with a Soyuz 2.1 launch vehicle from Baikonur. The launch window in Q1 2 ...
... space environment. This also allowed cost effective testing of the Attitude Control System and will ease the analyses of failure cases during operation. Launch The Flying Laptop satellite will be launched as a secondary payload with a Soyuz 2.1 launch vehicle from Baikonur. The launch window in Q1 2 ...
- IRSF: Past and Future
... I will present the deep NIR catalogue of the HIZoA galaxies which will be used for investigation of matter distribution in the ZoA. Observations were conducted between 2006 and 2013 using the 1.4m IRSF telescope situated at the South African Astronomical Observatory site in Sutherland. Final data re ...
... I will present the deep NIR catalogue of the HIZoA galaxies which will be used for investigation of matter distribution in the ZoA. Observations were conducted between 2006 and 2013 using the 1.4m IRSF telescope situated at the South African Astronomical Observatory site in Sutherland. Final data re ...