India develops spectrograph that can locate faint light from distant celestial objects
New Delhi, March 04: Indian Scientists have indigenously designed and developed a low-cost optical
spectrograph that can locate sources of faint light from distant quasars and galaxies, regions around
supermassive black-holes around the galaxies, and cosmic explosions.
Named Aries-Devasthal Faint Object Spectrograph & Camera (ADFOSC), the instrument was designed
and developed by Aryabhatta Research Institute of observational sciences (ARIES), Nainital, an
autonomous institute of the Department of Science and Technology (DST), Government of India. It is
about 2.5 times less costly compared to imported ones and can locate sources of light with a photon-rate as
low as about 1 photon per second.
The spectroscope, the largest of its kind among the existing astronomical spectrogr...