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Browsing by Author "Sriram, S"

Browsing by Author "Sriram, S"

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  • Mapping distortion of detectors in UVIT onboard astroSat observatory 
    Girish, V; Tandon, S. N; Sriram, S; Amit Kumar; Postma, J (Springer, 2017-02)
    Ultraviolet Imaging Telescope (UVIT) is one of the payloads onboard AstroSat, India’s first multi-wavelength Astronomy mission. UVIT is primarily designed to make high resolution images in wide field, in three wavelength ...
  • Opto-mechanical assembly and ground calibration of LUCI 
    Mathew, J; Nair, B. G; Sriram, S; Kamath, P. U; Prakash, A; Mayuresh, Sarpotdar; Ambily, S; Nirmal, K; Sreejith, A. G; Safonova, M; Murthy, J; Brosch, N (SPIE--The International Society for Optical Engineering, 2018-08-20)
    The Lunar Ultraviolet Cosmic Imager (LUCI) is an innovative all-spherical mirrors telescope, proposed to fly as a scientific UV imaging payload on a lunar mission in collaboration with Indian Aerospace Company-TeamIndus, ...
  • Proposed visible emission line space solar coronagraph 
    Singh, J; Prasad, B. R; Venkatakrishnan, P; Sankarasubramanian, K; Banerjee, D; Bayanna, R; Mathew, S; Murthy, J; Subramaniam, P; Ramesh, R; Kathiravan, S; Nagabhushana, S; Mahesh, P. K; Manoharan, P. K; Uddin, W; Sriram, S; Amit Kumar; Srivastava, N; Koteswara Rao; Nagendra, C. L; Chakraborty, P; Sriram, K. V; Venkateswaran, R; Krishnamurthy, T; Sreekumar, P; Sarma, K. S; Murthy, R; Navalgund, K. H; Samudraiah, D. R. M; Narayan Babu, P; Patra, A (Indian Academy of Sciences, 2011-01-25)
    The outer atmosphere of the sun – called the corona – has been observed during total solar eclipse for short periods (typically < 6 min), from as early as the eighteenth century. In the recent past, space-based instruments ...
  • Prospect for UV observations from the moon. III. assembly and ground calibration of lunar ultraviolet cosmic imager (LUCI) 
    Mathew, J; Nair, B. G; Safonova, M; Sriram, S; Prakash, A; Mayuresh, Sarpotdar; Ambily, S; Nirmal, K; Sreejith, A. G; Murthy, J; Kamath, P. U; Kathiravan, S; Prasad, B. R; Brosch, Noah; Kappelmann, Norbert; Gadde, Nirmal Suraj; Narayan, Rahul (Springer, 2019-03)
    The Lunar Ultraviolet Cosmic Imager (LUCI) is a near-ultraviolet (NUV) telescope with all-spherical mirrors, designed and built to fly as a scientific payload on a lunar mission with Team Indus—the original Indian entry to ...
  • Prototype segmented mirror telescope: a pathfinder of India's large optical-NIR telescope project 
    Parihar, P; Prasanna, Deshmukh; Jacob, A; Varun, Kumar; Goudar, Abhishek; Sriram, S; Nagabhusan, S; Amit Kumar, S; Govinda, K. V.; Sandeep, D. S.; Kemkar, P. M. M; Anupama, G. C (SPIE--The International Society for Optical Engineering, 2018-07)
    To cater the need of growing astronomical community of India, there is a proposal to install 10-12m size optical-NIR telescope, equipped with state of the art back-end instruments . A telescope of this size is possible ...
  • The solar ultraviolet imaging telescope onboard Aditya-L1 
    Ghosh, Avyarthana; Chatterjee, Subhamoy; Khan, Aafaque R; Tripathi, Durgesh; Ramaprakash, A. N; Banerjee, D; Chordia, P; Gandorfer, Achim; Krivova, N.A; Nandy, D; Rajarshi, Chaitanya; Solanki, S. K; Sriram, S (SPIE-The International Society for Optical Engineering, 2016-07)
    The Solar Ultraviolet Imaging Telescope (SUIT) is an instrument onboard the Aditya-L1 spacecraft, the first dedicated solar mission of the Indian Space Research Organization (ISRO), which will be put in a halo orbit at the ...
  • Spectroscopic Investigation of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects 
    Bharat Chandra; Nair, B. G; Suresh, Ambily; Prabha, C. S; Mathew, J; Nirmal, K; Sarpotdar, Mayuresh; Mohan, R; Safonova, M; Sriram, S; Murthy, J (SPIE--The International Society for Optical Engineering, 2019-01)
    SING is a near ultraviolet (NUV) spectrograph with a size close to 6U CubeSat form-factor. The spectrograph operates in the wavelength range from 1800 Å to 3000 Å, with a spectral resolution of 2 Å at the central wavelength. ...
  • Tests and calibration on ultra violet imaging telescope (UVIT) 
    Amit Kumar; Ghosh, S. K; Kamath, P. U; Postma, Joe; Kathiravan, S; Mahesh, P. K; Nagbhushana, S; Navalgund, K. H; Rajkumar, N; Rao, M. N; Sarma, K. S; Sriram, S; Stalin, C. S; Tandon, S. N (SPIE--The International Society for Optical Engineering, 2012-09)
    Ultra Violet Imaging Telescope on ASTROSAT Satellite mission is a suite of Far Ultra Violet (FUV; 130 – 180 nm), Near Ultra Violet (NUV; 200 – 300 nm) and Visible band (VIS; 320–550nm) imagers. ASTROSAT is a first ...
  • Toward precision radial velocity measurements using Echelle spectrograph at VainuBappu Telescope 
    Chamarthi, Sireesha; Banyal, R. K; Sriram, S (SPIE-The International Society for Optical Engineering, 2019-04)
    The Echelle spectrograph operating at Vainu Bappu Telescope is a general purpose instrument designed for high-resolution spectroscopy. It is being considered for precision Doppler measurements without altering the existing ...
  • Ultra violet imaging telescope (UVIT) on ASTROSAT 
    Amit Kumar; Ghosh, S. K; Hutchings, J; Kamath, P. U; Kathiravan, S; Mahesh, P. K; Murthy, J; Nagbhushana, S; Pati, A. K; Rao, M. N; Rao, N. K; Sriram, S; Tandon, S. N (SPIE--The International Society for Optical Engineering, 2012-09)
    The Ultra Violet Imaging Telescope on ASTROSAT Satellite mission is a suite of Far Ultra Violet (FUV: 130 – 180 nm), Near Ultra Violet (NUV: 200 – 300 nm) and Visible band (VIS: 320–550nm) imagers. ASTROSAT is the ...
  • Wavelength calibration of a tunable spatial heterodyne spectrometer 
    Nirmal, K; Sridharan, R; Sriram, S; Ambily, S; Mathew, J; Mayuresh, Sarpotdar; Murthy, J; Binukumar, G; Safonova, M (SPIE-The International Society for Optical Engineering, 2018-07-06)
    Spatial Heterodyne Spectroscopy (SHS) is a relatively novel interferometric technique similar to Fourier transform spectroscopy and shares design similarities with a Michelson Interferometer. An Imaging detector is used ...

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