K . Kasturirangan

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The superluminal X-ray transient source GRS 1915+105was observed during July 20-29, 1996with the Indian X-ray Astronomy Experiment (IXAE) on the Indian satellite IRS-P3 launched on March 21, 1996 from Shriharikota Range in India. During our observations covering the energy band 218 keV, we have seen strong erratic intensity variations on time scale of 0.1s(More)
India’s Space Programme, a forty five year old enterprise, has distinguished itself through its focus on societal applications of advanced technology, its unbroken chain of innovations in the organization of a multidisciplinary venture of high risk nature, and its accomplishments of multidimensional character engaging industry, academia and international(More)
Biodiversity—the Natural Biotic Capital of the earth is fundamental to the fulfillment of human needs and vital for the survival of this planet. Biodiversity is the life ensurence; and there are four types of ecosystem services that we talk of, when it comes to biodiversity: one is of course the provisioning services—the food, live stock, fish, fresh water(More)
Three different types of very intense, quasi-regular X-ray bursts have been observed from the Galactic superluminal X-ray transient source GRS 19151105 with the pointed proportional counters of the Indian X-Ray Astronomy Experiment on board the Indian satellite IRS-P3. The observations were carried out from 1997 June 12 to 29 in the energy range of 2–18 keV(More)
Imaging techniques from space, started mainly as a military reconnaissance tool, have come a long way from its early concepts to meet the present day needs of providing a precise metrology of the Earth processes and its features. The first part of the paper deals with the basic concepts of imaging from space. In this, the energy source available and the(More)
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