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Adaptive Optics in Ground Based Telescopes
Post: #1

Adaptive Optics in Ground Based Telescopes

Adaptive optics is a new technology which is being used now a days in ground based telescopes to remove atmospheric tremor and thus provide a clearer and brighter view of stars seen through ground based telescopes. Without using this system, the images obtained through telescopes on earth are seen to be blurred, which is caused by the turbulent mixing of air at different temperatures.

Adaptive optics in effect removes this atmospheric tremor. It brings together the latest in computers, material science, electronic detectors, and digital control in a system that warps and bends a mirror in a telescope to counteract, in real time the atmospheric distortion.

The advance promises to let ground based telescopes reach their fundamental limits of resolution and sensitivity, out performing space based telescopes and ushering in a new era in optical astronomy. Finally, with this technology, it will be possible to see gas-giant type planets in nearby solar systems in our Milky Way galaxy. Although about 100 such planets have been discovered in recent years, all were detected through indirect means, such as the gravitational effects on their parent stars, and none has actually been detected directly.
Post: #2
WHAT IS ADAPTIVE OPTICS ?

Adaptive optics refers to optical systems which adapt to compensate for optical effects introduced by the medium between the object and its image. In theory a telescope's resolving power is directly proportional to the diameter of its primary light gathering lens or mirror. But in practice , images from large telescopes are blurred to a resolution no better than would be seen through a 20 cm aperture with no atmospheric blurring. At scientifically important infrared wavelengths, atmospheric turbulence degrades resolution by at least a factor of 10.

Space telescopes avoid problems with the atmosphere, but they are enormously expensive and the limit on aperture size of telescopes is quite restrictive. The Hubble Space telescope, the world's largest telescope in orbit , has an aperture of only 2.4 metres, while terrestrial telescopes can have a diameter four times that size.

In order to avoid atmospheric aberration, one can turn to larger telescopes on the ground, which have been equipped with ADAPTIVE OPTICS system. With this setup, the image quality that can be recovered is close to that the telescope would deliver if it were in space. Images obtained from the adaptive optics system on the 6.5 m diameter telescope, called the MMT telescope illustrate the impact
Post: #3
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Post: #4
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Post: #5
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Post: #6
To get full information or details of Adaptive Optics in Ground Based Telescopes please have a look on the pages



http://seminarprojectst-adaptive-optics-in-ground-based-telescopes

http://seminarprojectst-adaptive-optics-in-ground-based-telescope--15410

http://seminarprojectst-adaptive-optics-in-ground-based-telescopes?pid=4638&mode=linear




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Post: #7
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Post: #8
To get full information or details of Adaptive Optics in Ground Based Telescopes please have a look on the pages



http://seminarprojectst-adaptive-optics-in-ground-based-telescopes

http://seminarprojectst-adaptive-optics-in-ground-based-telescope--15410

http://seminarprojectst-adaptive-optics-in-ground-based-telescopes?pid=4638&mode=linear




if you again feel trouble on Adaptive Optics in Ground Based Telescopes please reply in that page and ask specific fields in Adaptive Optics in Ground Based Telescopes
Post: #9
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Post: #10
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Post: #11
To get full information or details of Adaptive Optics in Ground Based Telescopes please have a look on the pages


http://seminarprojectst-adaptive-optics-in-ground-based-telescopes?pid=4638&mode=linear

http://seminarprojectst-adaptive-optics-in-ground-based-telescope--15410

http://seminarprojectst-adaptive-optics-in-ground-based-telescopes

http://seminarprojectst-adaptive-optics-in-ground-based-telescopes--24295?pid=50620


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Post: #12
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Post: #13
To get full information or details of Adaptive Optics in Ground Based Telescopes please have a look on the pages


http://seminarprojectst-adaptive-optics-in-ground-based-telescopes

http://seminarprojectst-adaptive-optics-in-ground-based-telescope--15410

http://seminarprojectst-adaptive-optics-in-ground-based-telescopes--4762

http://seminarprojectst-adaptive-optics-in-ground-based-telescopes--24295?pid=50620


if you again feel trouble on Adaptive Optics in Ground Based Telescopes please reply in that page and ask specific fields in Adaptive Optics in Ground Based Telescopes
 

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