ULX accretion states
... But can a WD reach L ~ 1E39 erg/s Photosphere of massive outflows around a BH? ...
... But can a WD reach L ~ 1E39 erg/s Photosphere of massive outflows around a BH? ...
3. Wavefront sensors - Caltech Optical Observatories
... The output focal ratio of the second relay shall be greater than f/45 to allow for the optical switchyard. 2.2 Architecture of the Design The proposed Keck NGAO architecture consists basically of two pupil relays in cascade, a wide field relay followed by a narrow field one. The wide field relay c ...
... The output focal ratio of the second relay shall be greater than f/45 to allow for the optical switchyard. 2.2 Architecture of the Design The proposed Keck NGAO architecture consists basically of two pupil relays in cascade, a wide field relay followed by a narrow field one. The wide field relay c ...
ULTRA Optics - Composite Mirror Applications Inc.
... This paper will present results of mirror development under the MRI program and the current status of the technology. Optical test results using several test methods will be presented. We present quantitative optical results using a ShackHartman wave-front sensor, surface profilometry as well as mor ...
... This paper will present results of mirror development under the MRI program and the current status of the technology. Optical test results using several test methods will be presented. We present quantitative optical results using a ShackHartman wave-front sensor, surface profilometry as well as mor ...
icso-2014-New desing-new challenge for space large
... The ideal solution : Space telescope with adaptive optics to reduce mirror WFE and positioning stability requirements, both correctable thanks to mechanisms and ...
... The ideal solution : Space telescope with adaptive optics to reduce mirror WFE and positioning stability requirements, both correctable thanks to mechanisms and ...
Space Exploration
... Step 6 – Repeat Steps 1-5 for each of the other Topics in this Unit. Step 7 – Look over the Unit Outline to review the Key Concepts once you have completed all of the Topics. Step 8 – Complete the Unit Review, using your Learning Pack and Textbook. Step 9 – Highlight those sections of the Review tha ...
... Step 6 – Repeat Steps 1-5 for each of the other Topics in this Unit. Step 7 – Look over the Unit Outline to review the Key Concepts once you have completed all of the Topics. Step 8 – Complete the Unit Review, using your Learning Pack and Textbook. Step 9 – Highlight those sections of the Review tha ...
Cool Stars in the Galaxy — A ROSAT and ASCA View.
... The first ‘normal’ late-type stellar X-ray source was detected on a 1974 rocket flight and reported by C atura et al. (1975). It was only a short while later th at the first attem pt to model the corona of another star was made (Haisch and Linsky, 1976). The IUE satel lite allowed stellar ultraviol ...
... The first ‘normal’ late-type stellar X-ray source was detected on a 1974 rocket flight and reported by C atura et al. (1975). It was only a short while later th at the first attem pt to model the corona of another star was made (Haisch and Linsky, 1976). The IUE satel lite allowed stellar ultraviol ...
Newtonian Telescope Collimation with the Astrosystems LightPipe
... to the tube axis a slight rotation of the secondary will bring them together. If the images are parallel to the tube axis (left to right) then tilt adjustment to the secondary will bring them together. At this point, you will see very small adjustments having a great affect. Each reflection is two t ...
... to the tube axis a slight rotation of the secondary will bring them together. If the images are parallel to the tube axis (left to right) then tilt adjustment to the secondary will bring them together. At this point, you will see very small adjustments having a great affect. Each reflection is two t ...
magazine
... the Netherlands. The mechanical interfaces are integrated into the optics. The top of the stage consists of a thick plate of glass-ceramics (Zerodur), all sides of which are polished and coated so that they can act as mirrors for the interferometers which ensure the precise positioning. The top of t ...
... the Netherlands. The mechanical interfaces are integrated into the optics. The top of the stage consists of a thick plate of glass-ceramics (Zerodur), all sides of which are polished and coated so that they can act as mirrors for the interferometers which ensure the precise positioning. The top of t ...
The Infrared Imaging Spectrograph (IRIS) for TMT: Instrument
... longer than 1 µm. With moderate spectral resolution (R ~ 4000 – 8,000) and large bandpass over a continuous field of view, IRIS will open new opportunities in virtually every area of astrophysical science. It will be able to resolve surface features tens of kilometers across Titan, while also mappin ...
... longer than 1 µm. With moderate spectral resolution (R ~ 4000 – 8,000) and large bandpass over a continuous field of view, IRIS will open new opportunities in virtually every area of astrophysical science. It will be able to resolve surface features tens of kilometers across Titan, while also mappin ...
Telescope mirror supports: plate deflections on point supports
... effectsand thus representthe limiting caseof a mirror that is supportedat a great many points. Section 4 gives for a varietyof casesthe optimizedsupportconfigurationsfor circular plates.Thesecoverboth point supportsand continuous ring supports.In the final sectionwe brieflyaddressthe issue of suppor ...
... effectsand thus representthe limiting caseof a mirror that is supportedat a great many points. Section 4 gives for a varietyof casesthe optimizedsupportconfigurationsfor circular plates.Thesecoverboth point supportsand continuous ring supports.In the final sectionwe brieflyaddressthe issue of suppor ...
What to do to a Dob
... What needs adjustment? • Insertion of the secondary mirror • Orientation of the secondary mirror ...
... What needs adjustment? • Insertion of the secondary mirror • Orientation of the secondary mirror ...
Image Formation in the Eye and the Telescope
... Once the polar axis has been properly aligned there needs only to be smooth rotation about this one axis (360 degrees per day, to compensate for the Earth’s rotation) to keep a particular celestial object in view. Because this is relatively easy, particularly if the telescope has a small motor, an e ...
... Once the polar axis has been properly aligned there needs only to be smooth rotation about this one axis (360 degrees per day, to compensate for the Earth’s rotation) to keep a particular celestial object in view. Because this is relatively easy, particularly if the telescope has a small motor, an e ...
mems deformable mirrors industry perspective AdAptive imAging thomas Bifano
... in diameter and actuator stroke (maximum linear extension) in the range of 2–8 μm. BMC products in widespread commercial use include the MultiDM, which includes 140 actuators, and the KiloDM and KiloSLM, which are continuous and segmented versions of a 1,020-actuator device. BMC’s most recent develo ...
... in diameter and actuator stroke (maximum linear extension) in the range of 2–8 μm. BMC products in widespread commercial use include the MultiDM, which includes 140 actuators, and the KiloDM and KiloSLM, which are continuous and segmented versions of a 1,020-actuator device. BMC’s most recent develo ...
Testing Models of Coronal Heating, X
... • Cranmer (2009) used two independent sets of M*, L*, R*, ages, & accretion rates, from Hartigan et al. (1995) and Hartmann et al. (1998). ...
... • Cranmer (2009) used two independent sets of M*, L*, R*, ages, & accretion rates, from Hartigan et al. (1995) and Hartmann et al. (1998). ...
instruction manual - Optical Vision Ltd
... When you connect a camera directly to your telescope for "prime focus" photography, you sometimes require an adapter so that the camera can be focussed. Some reflectors need more length than the focuser can travel, in order to focus the camera, and some refractors are designed to be used with diagon ...
... When you connect a camera directly to your telescope for "prime focus" photography, you sometimes require an adapter so that the camera can be focussed. Some reflectors need more length than the focuser can travel, in order to focus the camera, and some refractors are designed to be used with diagon ...
orion® StarBlast 6 astro telescope
... Figure 3. Attaching a tube ring to the base bracket. Open the tube rings (5) by loosening the knurled ring clamps. Place the optical tube (3) in the open rings so the objective (front) end of the telescope points upward. While grasping the optical tube (3) firmly, close the rings around the tube and ...
... Figure 3. Attaching a tube ring to the base bracket. Open the tube rings (5) by loosening the knurled ring clamps. Place the optical tube (3) in the open rings so the objective (front) end of the telescope points upward. While grasping the optical tube (3) firmly, close the rings around the tube and ...
151110_1430_Operations_Planning_Update_
... 6. The expected lifetime of the SKA Observatory is 50 years. ...
... 6. The expected lifetime of the SKA Observatory is 50 years. ...
Vision and Voyages for Planetary Science 2013
... and policy dimensions. The basic tools of planetary science, be they spacecraft, telescopes, or laboratories, do not come for free. A “small” planetary spacecraft mission might cost $500 million, so this new venture cannot be started without careful planning and preparation. At a minimum, a new prop ...
... and policy dimensions. The basic tools of planetary science, be they spacecraft, telescopes, or laboratories, do not come for free. A “small” planetary spacecraft mission might cost $500 million, so this new venture cannot be started without careful planning and preparation. At a minimum, a new prop ...
Adaptive Optics 101 - Shaping Light Blog
... Introduction and Motivation Originally introduced in the 1950s as a concept for improving astronomical imaging by correcting atmospheric aberrations, it took nearly two decades for adaptive optics (AO) technology to catch up with theory and starlight to hit the first AO system1. Years later, major t ...
... Introduction and Motivation Originally introduced in the 1950s as a concept for improving astronomical imaging by correcting atmospheric aberrations, it took nearly two decades for adaptive optics (AO) technology to catch up with theory and starlight to hit the first AO system1. Years later, major t ...
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).