Progress on the 30m Giant Segmented Mirror
... Active and Adaptive Optics will have to be integrated into GSMT Telescope and Instrument concepts from the start ...
... Active and Adaptive Optics will have to be integrated into GSMT Telescope and Instrument concepts from the start ...
chris - ESA Earth Online
... device” , which is attached to the instrument at the front end of the external baffle, as indicated in Figure 1. This device is shown in greater detail in Figure 2. It is a very simple system, comprising essentially a plano-convex lens in fused quartz, integrated with a prism that reflects sunlight ...
... device” , which is attached to the instrument at the front end of the external baffle, as indicated in Figure 1. This device is shown in greater detail in Figure 2. It is a very simple system, comprising essentially a plano-convex lens in fused quartz, integrated with a prism that reflects sunlight ...
Max Planck Institute for Extraterrestrial Physics
... Max Planck Institute for Extraterrestrial Physics ...
... Max Planck Institute for Extraterrestrial Physics ...
Version presented at conference - DCC
... and numerical models predict nova-like transients from double neutron star and black hole/neutron star mergers [2]. GRB afterglows and supernovas are both well-studied phenomenon associated with gravitational radiation [3,4]. While GW and EM signals are expected to travel at the same speed, a common ...
... and numerical models predict nova-like transients from double neutron star and black hole/neutron star mergers [2]. GRB afterglows and supernovas are both well-studied phenomenon associated with gravitational radiation [3,4]. While GW and EM signals are expected to travel at the same speed, a common ...
Initial performance of the aspect system on the Chandra
... The aspect camera assembly (Figure 1) comprises a 11.2 cm, F/9 optical Ritchey-Chretien telescope. This assembly and its related components are mounted on the side of the High Resolution Mirror Assembly (HRMA). The camera's eld of view is 1:4 1:4 deg. The camera itself is placed at the end of a s ...
... The aspect camera assembly (Figure 1) comprises a 11.2 cm, F/9 optical Ritchey-Chretien telescope. This assembly and its related components are mounted on the side of the High Resolution Mirror Assembly (HRMA). The camera's eld of view is 1:4 1:4 deg. The camera itself is placed at the end of a s ...
Cartwheel Galaxy - Chandra X
... 10. A study of ULXs has determined that very few X-ray sources with luminosity greater than 1040 erg s−1 remain after ~15 Myr and few remain after ~30 Myr. 11. In the Cartwheel galaxy, it appears that a shock wave is moving radially outward in the disk. 9 sources of the 21 detected in the Chandra im ...
... 10. A study of ULXs has determined that very few X-ray sources with luminosity greater than 1040 erg s−1 remain after ~15 Myr and few remain after ~30 Myr. 11. In the Cartwheel galaxy, it appears that a shock wave is moving radially outward in the disk. 9 sources of the 21 detected in the Chandra im ...
Grid Instrument Middleware
... • Integrate instruments and sensors (e.g. real-time data sources) into a Grid computing environment with Grid services interfaces. • Abstract instrument capabilities and functions to reduce data acquisition and analysis applications’ dependence on specialized knowledge about particular instruments. ...
... • Integrate instruments and sensors (e.g. real-time data sources) into a Grid computing environment with Grid services interfaces. • Abstract instrument capabilities and functions to reduce data acquisition and analysis applications’ dependence on specialized knowledge about particular instruments. ...
Optical Fiber Communications
... The input waveguides (1) enter a lens region (2) (2) divides the power among the different waveguides in the grating array (3) Each grating waveguide has a precise length difference DL with its neighbors Light in each waveguide emerges with different phase delays DF at (4) The second lens region (5) ...
... The input waveguides (1) enter a lens region (2) (2) divides the power among the different waveguides in the grating array (3) Each grating waveguide has a precise length difference DL with its neighbors Light in each waveguide emerges with different phase delays DF at (4) The second lens region (5) ...
Multi-Coated Achromatic Lenses
... telescope can do for your observing program: 6" LXD55 – Observe hundreds of galaxies, nebulae, and star clusters of all types your very first night out, and hundreds more the next night out, simply by pressing the Autostar GO TO pushbutton. Watch as the telescope moves effortlessly and automatically ...
... telescope can do for your observing program: 6" LXD55 – Observe hundreds of galaxies, nebulae, and star clusters of all types your very first night out, and hundreds more the next night out, simply by pressing the Autostar GO TO pushbutton. Watch as the telescope moves effortlessly and automatically ...
Optical Fiber Communications
... The input waveguides (1) enter a lens region (2) (2) divides the power among the different waveguides in the grating array (3) Each grating waveguide has a precise length difference DL with its neighbors Light in each waveguide emerges with different phase delays DF at (4) The second lens region (5) ...
... The input waveguides (1) enter a lens region (2) (2) divides the power among the different waveguides in the grating array (3) Each grating waveguide has a precise length difference DL with its neighbors Light in each waveguide emerges with different phase delays DF at (4) The second lens region (5) ...
Compact Telescope for Free Space Communications
... mirror is constructed with a concentric “double curved” geometry, and a central obscuring folding mirror which matches the diameter of the smaller curve of the primary is mounted a short distance in front. This “double curved” geometry is easily produced using diamond turning technology, and the res ...
... mirror is constructed with a concentric “double curved” geometry, and a central obscuring folding mirror which matches the diameter of the smaller curve of the primary is mounted a short distance in front. This “double curved” geometry is easily produced using diamond turning technology, and the res ...
Telescope Consisting of Two Converging Lenses
... angle subtended by the image of this crater when viewed through a telescope of angular magnification 50 on the Earth. distance from Earth to Moon = 3.8 × 105 km ...
... angle subtended by the image of this crater when viewed through a telescope of angular magnification 50 on the Earth. distance from Earth to Moon = 3.8 × 105 km ...
PPT - Chandra X-Ray Observatory
... • Prominent example: HZ43 (Teff = 49,000 K), virtually metal free, shows no EUV or X-ray absorption features • Even more surprising: low metallicity of two DAs with even higher Teff. Two of hottest known DAs have extraordinarily low metal abundances: LB1919 (69,000 K) & MCT0027-6341 (60,000 K) • The ...
... • Prominent example: HZ43 (Teff = 49,000 K), virtually metal free, shows no EUV or X-ray absorption features • Even more surprising: low metallicity of two DAs with even higher Teff. Two of hottest known DAs have extraordinarily low metal abundances: LB1919 (69,000 K) & MCT0027-6341 (60,000 K) • The ...
Slide 1
... which shows the focal spot of the XRT mirrors. The position of this source can be determined by the XRT to within about 1 pixel (2.4 arcseconds). ...
... which shows the focal spot of the XRT mirrors. The position of this source can be determined by the XRT to within about 1 pixel (2.4 arcseconds). ...
Lecture 2: ppt, 5 MB
... Hubble has taken more than 700,000 exposures and probed more than 22,000 celestial objects. Hubble has whirled around Earth nearly 88,000 times, racking up 2.3 billion miles. The telescope's observations have produced 23 terabytes of data, equal to the amount of text in 23 million novels. The ...
... Hubble has taken more than 700,000 exposures and probed more than 22,000 celestial objects. Hubble has whirled around Earth nearly 88,000 times, racking up 2.3 billion miles. The telescope's observations have produced 23 terabytes of data, equal to the amount of text in 23 million novels. The ...
Paper
... number of military applications, including space-based space situational awareness (SSA), intelligence, surveillance, and reconnaissance (ISR), and missile tracking. The development of sensors that are smaller, lighter weight, adaptive, and use less power is critical for the success of future milita ...
... number of military applications, including space-based space situational awareness (SSA), intelligence, surveillance, and reconnaissance (ISR), and missile tracking. The development of sensors that are smaller, lighter weight, adaptive, and use less power is critical for the success of future milita ...
HEA_Accretion_2003_04
... • Gas loses angular momentum through collisions, shocks, viscosity and magnetic fields: kinetic energy converted into heat and radiated. • Matter sinks deeper into gravity of compact object ...
... • Gas loses angular momentum through collisions, shocks, viscosity and magnetic fields: kinetic energy converted into heat and radiated. • Matter sinks deeper into gravity of compact object ...
Purpose Contents 1. Activity 1
... sunlight). A dome slit opens and closes, like an elevator door or mini-van sliding door, to allow light from celestial objects into the telescope. Astronomers can turn the dome and point the telescope, so that the telescope “looks” through the slit, to observe celestial objects. ...
... sunlight). A dome slit opens and closes, like an elevator door or mini-van sliding door, to allow light from celestial objects into the telescope. Astronomers can turn the dome and point the telescope, so that the telescope “looks” through the slit, to observe celestial objects. ...
poster
... Figure 3: FUV emission lines observed with FUSE in CTTS and best fit Gaussian profiles ordered by the shift in the O vi 1032 Å line. For RU Lup an additional absorption component is used. ...
... Figure 3: FUV emission lines observed with FUSE in CTTS and best fit Gaussian profiles ordered by the shift in the O vi 1032 Å line. For RU Lup an additional absorption component is used. ...
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).