Ground layer turbulence is one of the important site characterization parameters used for assessing the quality of an astronomical sites. Lunar Scintillometer (LuSci) is a simple, yet an effective site-testing device for ...

The UV photon event rate is very low in the near space region and we need to have a very sensitive detector to discriminate between the noise and actual signal. Photon counting method is usually used to detect such weak ...

The solar coronal mass ejections (CMEs) play a direct and vital role in deciding the space weather, so it becomes inevitable to study their dynamical properties in the lower corona (i.e., over the radial distance range: ...

The Thirty Meter Telescope (TMT) mirror segment actuator is a soft actuator designed by Jet Propulsion Laboratory (JPL), Pasadena USA. As a part of India‟s in-kind contribution, all required 1600 actuators will be ...

To address key research problems of astronomy, a large aperture telescope has become a need for every astronomical group around the globe. Optical telescopes with single monolithic primary mirror of 8m and above aperture ...

Radio Astronomy involves digital systems for processing and analyzing the celestial radio signals received by the radio antennas. In recent days, Field Programmable Gate Arrays (FPGAs) are used for digital signal processing ...

We are beginning a program of high altitude balloon flights at the Indian Institute of Astrophysics with the eventual goal of ultraviolet spectroscopy from high altitude balloons. The primary purpose of these flights is ...

The H minus ions prevalent in the sub-photospheric level are found to have minimum opacity at around 1.63 m which makes this wavelength suitable for sub-photospheric observations . Some previous observations by Foukal ...

Imaging Polarimetry of Extended sources is not very common. This project entitled "Dual Beam Imaging Polarimeter" is an attempt to build one for the 1.3m telescope in Kavalur. The Instrument will make use of the Wide field ...