Astronomy with mm-Mpc lenses - SLAC
... Galaxy appears to have magnitude 28 – but has been magnified 25x by the lens... z=7 would make it the most distant galaxy known to date (last week). Universe was 1/8 its current scale and a very different place... http://xxx.arxiv.org/abs/astro-ph/0402319 ...
... Galaxy appears to have magnitude 28 – but has been magnified 25x by the lens... z=7 would make it the most distant galaxy known to date (last week). Universe was 1/8 its current scale and a very different place... http://xxx.arxiv.org/abs/astro-ph/0402319 ...
Telescopes
... Hubble Space Telescope (HST) • 2.4m diameter mirror • Ultraviolet/optical/infrared • Above (most of) Earth’s atmosphere • High angular resolution • Light not blocked in ultraviolet (or infrared) • Low earth orbit • 600 km (370 mile) altitude • 95 min orbits • Earth blocks view half of each orbit • ...
... Hubble Space Telescope (HST) • 2.4m diameter mirror • Ultraviolet/optical/infrared • Above (most of) Earth’s atmosphere • High angular resolution • Light not blocked in ultraviolet (or infrared) • Low earth orbit • 600 km (370 mile) altitude • 95 min orbits • Earth blocks view half of each orbit • ...
26-1
... 17. How long are infrared waves compared with waves of visible light? _______________________________________________________________ 18. What does the word ultraviolet mean? _______________________________________________________________ 19.What are the shortest wavelengths? _______________________ ...
... 17. How long are infrared waves compared with waves of visible light? _______________________________________________________________ 18. What does the word ultraviolet mean? _______________________________________________________________ 19.What are the shortest wavelengths? _______________________ ...
Document
... missions, these apertures will form a constellation of telescopes operating as interferometers. These interferometric observatories may have effective apertures up to 1000 m diameter. Low mass of critical components such as the primary mirror, its support and/or deployment structure, is extremely im ...
... missions, these apertures will form a constellation of telescopes operating as interferometers. These interferometric observatories may have effective apertures up to 1000 m diameter. Low mass of critical components such as the primary mirror, its support and/or deployment structure, is extremely im ...
Chapter 6. - Department of Physics & Astronomy
... to produce: All surfaces must be perfectly shaped; glass must be flawless; lens can only be supported at the edges. ...
... to produce: All surfaces must be perfectly shaped; glass must be flawless; lens can only be supported at the edges. ...
Modern Day astronomical tools
... After one of its 3 gyroscopes failed in December 1999, the observatory was deliberately deorbited. At the time, the observatory was still operational; however the failure of another gyroscope would have made de-orbiting much more difficult and dangerous. With some controversy, NASA decided in the in ...
... After one of its 3 gyroscopes failed in December 1999, the observatory was deliberately deorbited. At the time, the observatory was still operational; however the failure of another gyroscope would have made de-orbiting much more difficult and dangerous. With some controversy, NASA decided in the in ...
Diapositiva 1
... • SiC mirror shells with diameter ranging from 70 to 21 cm, total mirror height of 28 cm and max wall thickness= 1 mm. Predicted HEW of 10 arcsec over a field radius of 30 arcmin (including profile and integration errors) • X-ray camera made of an array of nine CCDs arranged in an inverted pyramid t ...
... • SiC mirror shells with diameter ranging from 70 to 21 cm, total mirror height of 28 cm and max wall thickness= 1 mm. Predicted HEW of 10 arcsec over a field radius of 30 arcmin (including profile and integration errors) • X-ray camera made of an array of nine CCDs arranged in an inverted pyramid t ...
megascope - Marcia Bartusiak
... energy. "Dwarf novae- binary star systems where mass is being transferred from one star to another- are also leading candidates," says Jones. "Somehow energy is built up during the transformation and is periodically released in a tremendous explosion." The multiple mirror telescope will allow astro ...
... energy. "Dwarf novae- binary star systems where mass is being transferred from one star to another- are also leading candidates," says Jones. "Somehow energy is built up during the transformation and is periodically released in a tremendous explosion." The multiple mirror telescope will allow astro ...
The Study of Outer Space Astronomy History of Astronomy
... pictures as it orbits the earth. The Hubble telescope travels at a speed of 17,000 mph. It is powered by solar rays. The Hubble telescope is about the length of a school bus. The Hubble telescope is an example of a space satellite. Satellites are machines that are launched into space and orbit ...
... pictures as it orbits the earth. The Hubble telescope travels at a speed of 17,000 mph. It is powered by solar rays. The Hubble telescope is about the length of a school bus. The Hubble telescope is an example of a space satellite. Satellites are machines that are launched into space and orbit ...
Introduction to Astronomy
... Announcements • Turn in Homework 5, pick up Homework 6. • Another test this week! Same days (W,Th), same format as before. • First project due October 13. ...
... Announcements • Turn in Homework 5, pick up Homework 6. • Another test this week! Same days (W,Th), same format as before. • First project due October 13. ...
Tools for Studying Space
... A narrow band of radio waves is able to penetrate the atmosphere, by measuring these waves we can map the galactic distribution of hydrogen Radio Telescope – a telescope designed to make observations in radio wavelengths A radio telescope focuses the incoming radio waves on an antenna, which absorbs ...
... A narrow band of radio waves is able to penetrate the atmosphere, by measuring these waves we can map the galactic distribution of hydrogen Radio Telescope – a telescope designed to make observations in radio wavelengths A radio telescope focuses the incoming radio waves on an antenna, which absorbs ...
The X-ray Astronomy Imaging Chain
... • X-Ray photons at “normal” or “nearnormal” incidence (photon path perpendicular to mirror, as already shown) would be transmitted (or possibly absorbed) rather than reflected. • At near-parallel incidence, X Rays “skip” off mirror surface (like stones skipping across water surface) ...
... • X-Ray photons at “normal” or “nearnormal” incidence (photon path perpendicular to mirror, as already shown) would be transmitted (or possibly absorbed) rather than reflected. • At near-parallel incidence, X Rays “skip” off mirror surface (like stones skipping across water surface) ...
Telescopes - schoolphysics
... small amount of light that they interrupt is negligible compared with the total amount received by the main mirror. All mirrors used in astronomical telescopes are silvered on the front surface, otherwise the light would pass through the glass and both colour distortion and multiple images would res ...
... small amount of light that they interrupt is negligible compared with the total amount received by the main mirror. All mirrors used in astronomical telescopes are silvered on the front surface, otherwise the light would pass through the glass and both colour distortion and multiple images would res ...
Jeopardy Review
... stored on computers, so can be transmitted via the Internet Why is a CCD better than photography for telescopes? ...
... stored on computers, so can be transmitted via the Internet Why is a CCD better than photography for telescopes? ...
Integration of a Small Telescope System for Space
... Can provide accurate position data (metrics) of satellites All systems are remotely accessible ...
... Can provide accurate position data (metrics) of satellites All systems are remotely accessible ...
The X-ray Astronomy Imaging Chain
... • X-Ray photons at “normal” or “nearnormal” incidence (photon path perpendicular to mirror, as already shown) would be transmitted (or possibly absorbed) rather than reflected. • At near-parallel incidence, X Rays “skip” off mirror surface (like stones skipping across water surface) ...
... • X-Ray photons at “normal” or “nearnormal” incidence (photon path perpendicular to mirror, as already shown) would be transmitted (or possibly absorbed) rather than reflected. • At near-parallel incidence, X Rays “skip” off mirror surface (like stones skipping across water surface) ...
Light: The Cosmic Messenger
... Kovrin sat with Tanya all the evening, and after midnight went out with her into the garden. It was cold... "Even as a child I used to sneeze from the smoke here," he said, shrugging his shoulders, "but to this day I don't understand how smoke can keep off frost." "Smoke takes the place of clouds wh ...
... Kovrin sat with Tanya all the evening, and after midnight went out with her into the garden. It was cold... "Even as a child I used to sneeze from the smoke here," he said, shrugging his shoulders, "but to this day I don't understand how smoke can keep off frost." "Smoke takes the place of clouds wh ...
Optics
... bluish glow. This scattering, as well as absorption of some of the light by dust, also leaves the light diminished in brightness. The panorama was assembled from sixteen wide-angle photographs taken by Dr. Axel Mellinger using a standard 35-mm camera and color negative film. The exposures were made ...
... bluish glow. This scattering, as well as absorption of some of the light by dust, also leaves the light diminished in brightness. The panorama was assembled from sixteen wide-angle photographs taken by Dr. Axel Mellinger using a standard 35-mm camera and color negative film. The exposures were made ...
Slide 1
... APPROXIMATELY EQUAL TO THE AREA OF THE OBJECTIVE LENS OR MIRROR TO THE AREA OF THE EYEPIECE. FOR EXAMPLE, WITH AN 8 INCH (20 CM) TELESCOPE, THE OBJECTIVE AREA WOULD BE: A = PR2 = 314 cm2 FOR AN EYEPIECE 0.2 cm IN DIAMETER A2 = PR2 = 0.0314 cm2 THE RATIO WOULD BE ...
... APPROXIMATELY EQUAL TO THE AREA OF THE OBJECTIVE LENS OR MIRROR TO THE AREA OF THE EYEPIECE. FOR EXAMPLE, WITH AN 8 INCH (20 CM) TELESCOPE, THE OBJECTIVE AREA WOULD BE: A = PR2 = 314 cm2 FOR AN EYEPIECE 0.2 cm IN DIAMETER A2 = PR2 = 0.0314 cm2 THE RATIO WOULD BE ...
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).