explain ultra violet telescope
Answers
Ultraviolet (UV) astronomy has had successes but has not had the public attention of other photonic bands such as visible, infrared, gamma, x-ray, and radio frequency. UV is generally produced by very hot objects such as young and large stars, certain areas of the interstellar medium, old stars that have departed the main sequence and are undergoing a sequence of hot compression and expansion, other highly energetic objects such as an accretion disk around a black hole, and the solar corona. The Earth’s atmosphere absorbs UV at wavelengths below about 300 nm, which leads to a requirement of a space-based UV telescope since much of the interesting information is in the 10–380 nm band. One of the more interesting areas of UV observation is mapping the hot areas of galaxies, which can lead to a better understanding of galaxy evolution. Another is the detection of Deuterium, which has special lines in the UV. Deuterium abundance in the universe is important in the study of Big Bang nucleosynthesis. UV telescopes are challenging to design and build since the reflective surfaces require special coatings and must be very smooth compared with visible telescopes.
HOLA MATE,
The Ultraviolet Telescope (HUT) was a space telescope designed to make spectroscopic observations in the far-ultraviolet region of the electromagnetic spectrum. It was flown into orbit on the Space Shuttle and operated from the Shuttle's payload bay on two occasions: in December 1990, as part of Shuttle mission STS-35, and in March 1995, as part of mission STS-67.