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  • Development of a large-area, wide-angle Cerenkov radiation detector for the MYSTIQUE gamma-ray telescope 
    Dhar, V. K; Yadav, K. K; Bhattacharyya, S; Kaul, R. K; Bhat, C. L; Koul, R; Kaul, S. R; Kaul, S. K (Astronomical Society of India, 1999)
    An ultra-sensitive, multi-detector gamma-ray telescope array is being setup at Mt. Abu for cosmic gamma-ray studies in the tens of TeV energy region. Here, we present the essential design features of the Cerenkov radiation ...
  • Development of a Lunar Scintillometer as part of the national large optical telescope site survey 
    Surendran, A; Parihar, P. S; Banyal, R. K; Anusha Kalyaan (Springer, 2018-03)
    Ground layer turbulence is a very important site characterization parameter used to assess the quality of an astronomical site. The Lunar Scintillometer is a simple and effective site-testing device for measuring the ...
  • Development of a lunar Scintillometer for measuring ground layer turbulence 
    Surendran, A (Indian Institute of Astrophysics, 2012-07)
    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 ...
  • Development of a spatial heterodyne spectrometer and associated instrumentation for space and ground observatories 
    Nirmal, K (Indian Institute of Astrophysics, 2018-09)
    We describe the development of compact, lightweight payloads suitable for ground, space, and balloon-based observatories. The first instrument is a compact high resolution (≥ 20000) tunable spatial heterodyne spectrom- eter ...
  • Development of a Speckle Interferometer and the Measurement of Fried's Parameter (ro) at the Telescope Site 
    Saha, S. K; Sudheendra, G; Chandra, A. U; Chinnappan, V (Kluwer Academic Publishers, 1999)
    A new optical speckle interferometer for use at the 2.34 meter Vainu Bappu Telescope (VBT), at Vainu Bappu Observatory (VBO), Kavalur, India, has been designed and developed. Provisions have been made for observation both ...
  • Development of a stabilized fabry-perot based wavelength calibrator for precision doppler spectroscopy 
    Tanya, Das; Banyal, R. K; Kathiravan, S; Sivarani, T; Ravindra, B (SPIE-The International Society for Optical Engineering, 2018-07-06)
    Precision Doppler spectroscopy serves as an important tool for Radial Velocity (RV) observations of stars. High precision spectroscopy is bound by two major challenges, first being the instrument instability which is ...
  • Development of a stellar SPOT model 
    Nagar, P (Astronomical Society of Indian, 1989-09)
    A spectroscopic spot model has been developed incorporating spot magnetic fields. It is shown that the presence of spot magnetic field makes a noticeable effect on the shape of spectral lines
  • Development of a temperature controller for the order-sorting interference filters 
    Banyal, R. K; Ravindra, B (Indian Institute of Astrophysics, 2012-08-01)
    A Fabry-Perot narrow band imager (NBI) is being built for solar studies at IIA [1]. The NBI has an order sorting pre- lter that selects an optical beam within desired wavelength band. A constant temperature is required ...
  • Development of an active-optics system for 27-inch thin mirror 
    Saxena, A. K; Lancelot, J. P; Samson, J. P (SPIE-The International Society for Optical Engineering, 1993-12)
    India is planning to build a large Optical/Infrared Telescope of 4 to 5 M in size. This telescope will adopt most of the features of the New Technology Telescope including active and adoptive optics corrections for achieving ...
  • Development of an antenna system to observe the circularly polarized radio emission from the solar corona at low frequencies 
    Sasikumar Raja, K (Indian Institute of Astrophysics, 2010-07)
    The corona is the outer most atmosphere of the Sun, overlying the photosphere and the chromosphere. It extends to several millions of kilometers into space and is about 106 times fainter compared to the photosphere. At ...
  • Development of an FPGA based photon counting detector 
    Ambily, S (Indian Institute of Astrophysics, 2014-08)
    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 ...
  • Development of automated extinction monitor for the NLOT site survey 
    Tarun Kumar Sharma (Indian Institute of Astrophysics, 2011-07)
  • Development of CCD camera systems at IIA 
    Naidu, B. N; Shankar, S. M; Srinivasan, R; Ravi, K; Nathan, S (Astronomical Society of India, 1998)
  • Development of cross-polarized log-periodic dipole antenna for low frequency radio spectral observations 
    Anshu Kumari (Indian Institute of Astrophysics, 2015-07)
    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: ...
  • Development of Data Acquisition Methods for an FPGA-Based Photon Counting Detector 
    Ambily, S; Mayuresh, Sarpotdar; Mathew, J; Sreejith, A. G; Nirmal, K; Prakash, A; Safonova, M; Murthy, J (World Scientific Publishing Co., 2017-03)
    MCP-based detectors are widely used in the ultraviolet (UV) region due to their low noise levels, high sensitivity and good spatial and temporal resolution. We have developed a compact near-UV (NUV) detector for highaltitude ...
  • Development of detectors for space missions and balloon flights 
    Ambily, S (Indian Institute of Astrophysics, 2018-11)
    We are developing compact astronomical payloads for ultraviolet (UV) observations from CubeSats and high altitude balloons. It is important to have a highly sensitive, low noise detector in the UV region where the ...
  • Development of High Resolution System for Stellar Imaging 
    Sreekanth Reddy, V (Indian Institute of Astrophysics, 2021-01)
    Adaptive Optics (AO) technology is a part of ground-based astronomical observatories around the world. It enables the telescopes to attain near diffraction-limited resolution. We have designed, developed and tested a ...
  • The development of HISPEC for Keck and MODHIS for TMT: science cases and predicted sensitivities 
    Konopacky, Quinn M; Baker, Ashley D; Mawet, Dimitri; Fitzgerald, Michael P; Jovanovic, Nemanja; Beichman, Charles; Ruane, Garreth; Bertz, Rob; Terada, Hiroshi; Dekany, Richard; Lingvay, Larry; Kassis, Marc; Anderson, David; Tamura, Motohide; Benneke, Bjorn; Beatty, Thomas; Do, Tuan; Nishiyama, Shogo; Plavchan, Peter; Wang, Jason; Wang, Ji; Burgasser, Adam; Ruffio, Jean-Baptiste; Zhang, Huihao; Brown, Aaron; Fucik, Jason; Gibbs, Aidan; Gibson, Rose; Halverson, Sam; Johnson, Christopher; Karkar, Sonia; Kotani, Takayuki; Kress, Evan; Leifer, Stephanie; Magnone, Kenneth; Maire, Jerome; Pahuja, Rishi; Porter, Michael; Roberts, Mitsuko; Sappey, Ben; Thorne, Jim; Wang, Eric; Artigau, Etienne; Blake, Geoffrey A; Canalizo, Gabriela; Chen, Guo; Doppmann, Greg; Doyon, Rene; Dressing, Courtney; Fang, Min; Greene, Thomas; Herczeg, Greg; Hillenbrand, Lynne; Howard, Andrew; Kane, Stephen; Kataria, Tiffany; Kempton, Eliza; Knutson, Heather; Lafrenière, David; Liu, Chao; Metchev, Stanimir; Millar-Blanchaer, Max; Narita, Norio; Pandey, G; Rajaguru, S. P; Robertson, Paul; Salyk, Colette; Sato, Bun’ei; Schlawin, Evertt; Sengupta, S; Sivarani, T; Skidmore, Warren; Vasisht, Gautam; Yasui, Chikako; Zhang, Hui (SPIE-The International Society for Optical Engineering, 2023-10)
    HISPEC is a new, high-resolution near-infrared spectrograph being designed for the W.M. Keck II telescope. By offering single-shot, R 100,000 spectroscopy between 0.98 – 2.5 µm, HISPEC will enable spectroscopy of transiting ...
  • Development of image motion compensation system for 1.3m telescope at Vainu Bappu Observatory 
    Sreekanth Reddy, V; Banyal, R. K; Sridharan, R; Aishwarya, S (IOP Publishing, 2020-01-01)
    We developed a tip-tilt system to compensate the turbulence induced image motion for the 1.3 m telescope at Vainu Bappu Observatory, at Kavalur. The instrument is designed to operate at the visible wavelength band (480−700 ...
  • Development of Image Stabilization System for the Kodaikanal Tower Telescope 
    Shanti Prabha, C (Indian Institute of Astrophysics, 2018-07)
    This M. Tech. project is a part of IIA’s internal project of developing and demonstrating a solar adaptive optics system. The Earth’s turbulent atmosphere distorts the light wave-fronts passing through it and thus impairs ...

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