Operations of the Quality Control Group: The UVES case
... Low metallicity brown dwarfs hard to observe: >5 Gyr-old field brown dwarfs with less than ~0.04 solar masses too faint to be picked up by surveys, might be found by chance in deep fields Brown dwarfs forming at low metallicities (~0.5 solar) may be found in the outer Galaxy: clusters fit in small f ...
... Low metallicity brown dwarfs hard to observe: >5 Gyr-old field brown dwarfs with less than ~0.04 solar masses too faint to be picked up by surveys, might be found by chance in deep fields Brown dwarfs forming at low metallicities (~0.5 solar) may be found in the outer Galaxy: clusters fit in small f ...
calibration frames - RASC Ottawa Centre
... OPTICAL TUBE ASSEMBLY (2) collimation adj. using a rod end ...
... OPTICAL TUBE ASSEMBLY (2) collimation adj. using a rod end ...
China_contribution
... Possibility on Joining NGO Program Telescope of NGO (Nanjing Institute of Astronomy and Optics Technology, CAS) Collaboration with MP Institute for Gravitational Physics on Laser Interferometer (Institute of Mechanics, CAS) Collaboration with Trento University for inertial sensors (Huazhong U ...
... Possibility on Joining NGO Program Telescope of NGO (Nanjing Institute of Astronomy and Optics Technology, CAS) Collaboration with MP Institute for Gravitational Physics on Laser Interferometer (Institute of Mechanics, CAS) Collaboration with Trento University for inertial sensors (Huazhong U ...
HERA-B RICH light collection system
... The primary purpose of the HERA-B spectrometer is to measure CP violation in the B meson system. The HERA-B RICH detector, [1] and Fig. 1, is designed to provide excellent particle identi"cation over the momentum range 4}80 GeV/c. Flavor tagging of B (or BM ) mesons by e$cient kaon}pion separation ...
... The primary purpose of the HERA-B spectrometer is to measure CP violation in the B meson system. The HERA-B RICH detector, [1] and Fig. 1, is designed to provide excellent particle identi"cation over the momentum range 4}80 GeV/c. Flavor tagging of B (or BM ) mesons by e$cient kaon}pion separation ...
Telescope Design The Keck II Telescope
... Uses the primary hyperboloid mirror to focus incoming light onto the convex circular secondary mirror which sends the light back through a hole in the primary mirror to the eyepiece, located at the rear of the telescope…tertiary mirror... ...
... Uses the primary hyperboloid mirror to focus incoming light onto the convex circular secondary mirror which sends the light back through a hole in the primary mirror to the eyepiece, located at the rear of the telescope…tertiary mirror... ...
Atmospheric Gas Phase Reactions
... 1) Slit could be very high (long) if e.g. a detector with 20 x 20 mm size is used 2) Angle of incidence on refracting surface is about: /2 + /2 23o + 30o 53o Fresnel reflection @ 53o is about 6-7% 90% efficiency! 3) Dispersion curve is highly non-linear Needs to be corrected (l ...
... 1) Slit could be very high (long) if e.g. a detector with 20 x 20 mm size is used 2) Angle of incidence on refracting surface is about: /2 + /2 23o + 30o 53o Fresnel reflection @ 53o is about 6-7% 90% efficiency! 3) Dispersion curve is highly non-linear Needs to be corrected (l ...
THE LAS CAMPANAS INFRARED SURVEY CAMERA S. E. Persson
... The image of the telescope pupil formed at M2 is soft compared with the focal-plane images. By ray-tracing a series of object points placed at the primary mirror, we found a maximum spot size 400 lm at M2. This number sets the size of the baffle at M2, as discussed in x 2.7. Previous experience with ...
... The image of the telescope pupil formed at M2 is soft compared with the focal-plane images. By ray-tracing a series of object points placed at the primary mirror, we found a maximum spot size 400 lm at M2. This number sets the size of the baffle at M2, as discussed in x 2.7. Previous experience with ...
Teaching STEM through Big Telescopes
... for studying light in terms of reflection and refraction. • The family of big telescopes working across different wavelengths provide an excellent context for teaching the electromagnetic spectrum. The radiation left over from the Big Bang, known as the Cosmic Microwave Background, is detected by r ...
... for studying light in terms of reflection and refraction. • The family of big telescopes working across different wavelengths provide an excellent context for teaching the electromagnetic spectrum. The radiation left over from the Big Bang, known as the Cosmic Microwave Background, is detected by r ...
astep - Institut d`Astrophysique de Paris
... •We only have a partial knowledge of these effects •They seem to all result from interaction between environmental effects with instrumental characteristics (Pont 2005) •They are closely linked to the spatial sampling quality •For OGLE, the principal source is differential refraction linked to air m ...
... •We only have a partial knowledge of these effects •They seem to all result from interaction between environmental effects with instrumental characteristics (Pont 2005) •They are closely linked to the spatial sampling quality •For OGLE, the principal source is differential refraction linked to air m ...
A Spyglass Telescope
... Would we ever – even in our wildest dreams – have been able to imagine the universe as we know it today if we had not had any tele- in 1946. Today we are blessed to have telscopes? We owe the telescope the most hon- escopes of different kinds in space, opening orary position in relation to the stars ...
... Would we ever – even in our wildest dreams – have been able to imagine the universe as we know it today if we had not had any tele- in 1946. Today we are blessed to have telscopes? We owe the telescope the most hon- escopes of different kinds in space, opening orary position in relation to the stars ...
Galileo`s Telescope - YEAR 11 EBSS PHYSICS DETAILED STUDIES
... rotate around the polar axis because as the earth rotates, only the right ascension of the star changes. Provided this system is rotated at a constant rate, the telescope will follow the star’s movement across the sky. This can be achieved by a simple motor. ...
... rotate around the polar axis because as the earth rotates, only the right ascension of the star changes. Provided this system is rotated at a constant rate, the telescope will follow the star’s movement across the sky. This can be achieved by a simple motor. ...
Mirrors and Lenses
... Light enters the eye through the cornea Transparent covering of the eye Causes light to converge through the pupil and into a convex lens called the crystalline lens Focuses rays on the retina The retina converts the light to electrical signals that travel to the brain and ...
... Light enters the eye through the cornea Transparent covering of the eye Causes light to converge through the pupil and into a convex lens called the crystalline lens Focuses rays on the retina The retina converts the light to electrical signals that travel to the brain and ...
Active-Passive Instrument Package Definition for Advanced Earth
... 1. The design principles for a HSR instrument package consisting of an HSRL and HSRIm have been given: this Instrument package is ambitious in the development effort, cost and performance, but can provide very valuable information for the Earth Biosphere resources monitoring and planning, as well as ...
... 1. The design principles for a HSR instrument package consisting of an HSRL and HSRIm have been given: this Instrument package is ambitious in the development effort, cost and performance, but can provide very valuable information for the Earth Biosphere resources monitoring and planning, as well as ...
X-ray Emission Line Profile Diagnostics of Hot Star Winds
... absorption of photons in spectral lines - atoms act like a resonance chamber for electrons: a bound electron can be ‘driven’ much more efficiently by light than a free one (i.e. it has a much larger cross section), but it can only be driven by light with a very specific frequency. ...
... absorption of photons in spectral lines - atoms act like a resonance chamber for electrons: a bound electron can be ‘driven’ much more efficiently by light than a free one (i.e. it has a much larger cross section), but it can only be driven by light with a very specific frequency. ...
C10-NGT - Celestron.UK.COM
... The C10-NGT is the largest computerized Newtonian in its class with 178% more light gathering than the 6 inch model and almost twice the resolving power. The optics of the C10-N telescope are manufactured to Celestron?s uncompromising standards. The C1 0-N uses diffraction-limited parabolic primary ...
... The C10-NGT is the largest computerized Newtonian in its class with 178% more light gathering than the 6 inch model and almost twice the resolving power. The optics of the C10-N telescope are manufactured to Celestron?s uncompromising standards. The C1 0-N uses diffraction-limited parabolic primary ...
A Tale of Two (Solar) Telescopes: something old, something
... stars in the two epochs. Note weakening of A (blue curves,two bottom panels) in 2007 in T> 1 MK features. (Spectra derived by “optimal extraction” and divided by reference traces-- WD at longer wavelengths, AGN at shorter--to remove EA structure.) ...
... stars in the two epochs. Note weakening of A (blue curves,two bottom panels) in 2007 in T> 1 MK features. (Spectra derived by “optimal extraction” and divided by reference traces-- WD at longer wavelengths, AGN at shorter--to remove EA structure.) ...
AST 443: Submm & Radio Astronomy November 18, 2003
... • 1 Jy = 10-26 W m-2 Hz-1 • Most detectable sources have 10-3 – 106 Jy ...
... • 1 Jy = 10-26 W m-2 Hz-1 • Most detectable sources have 10-3 – 106 Jy ...
PowerPoint Presentation - Isolated Neutron Stars, solid crust
... Over the last few years, intense observational resources have been devoted to study the faint thermal emission from neutron stars and to search for features in their spectrum. Isolated neutron stars play a key role in compact objects astrophysics: these are the only sources in which we can see direc ...
... Over the last few years, intense observational resources have been devoted to study the faint thermal emission from neutron stars and to search for features in their spectrum. Isolated neutron stars play a key role in compact objects astrophysics: these are the only sources in which we can see direc ...
High Dynamic Range Telescope
... • Mechanical complexity cost: expect required MTBF of mirror actuators to increase linearly with N ...
... • Mechanical complexity cost: expect required MTBF of mirror actuators to increase linearly with N ...
August 2014 - Hermanus Astronomy
... preliminary discussions on the proposed construction of a Science Centre in Hermanus. Although separate from the Observatory development, its scope will include astronomy. Committee members from all three organizations are very enthusiastic about the project. ...
... preliminary discussions on the proposed construction of a Science Centre in Hermanus. Although separate from the Observatory development, its scope will include astronomy. Committee members from all three organizations are very enthusiastic about the project. ...
Thibou Page 1 of 6 Telescopic Analysis of Tomorrow: Advances in
... billion price tag was prohibitive. Of course, these telescopes will also rely on more advanced technology. For example, a 10 meter telescope only needs one guide star laser for adaptive optics; a 40 meter scope may require five. The proposed 8.4 meter Large Synoptic Survey Telescope (LSST) in Chile ...
... billion price tag was prohibitive. Of course, these telescopes will also rely on more advanced technology. For example, a 10 meter telescope only needs one guide star laser for adaptive optics; a 40 meter scope may require five. The proposed 8.4 meter Large Synoptic Survey Telescope (LSST) in Chile ...
What Comes Around, Goes Around
... Uncovering the secrets of the universe The servicing missions that keep Hubble running smoothly have paid off. The orbiting observatory has made about 870,000 observations resulting in more than 560,000 images of celestial objects. Hubble’s contributions to astronomy include providing clues to how g ...
... Uncovering the secrets of the universe The servicing missions that keep Hubble running smoothly have paid off. The orbiting observatory has made about 870,000 observations resulting in more than 560,000 images of celestial objects. Hubble’s contributions to astronomy include providing clues to how g ...
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).