• A tip-tilt correction system for the 30-inch telescope 

  Parvathy, M (Indian Institute of Astrophysics, 2022-07)

  Atmospheric turbulence degrades the image formed by ground-based telescopes. It causes the image to be spread over a large area known as the seeing-disk in a typical long exposure. In a short exposure, the image is spread ...
• Design and development of a digital micromirror device (DMD) based multi-object spectrograph (MOS) for the Indian spectroscopic and imaging space telescope (INSIST) 

  Jaini, Akhil (Indian Institute of Astrophysics, 2022-07)

  The coming decade in astronomy focuses on large widefield imaging and spectroscopic surveys. No widefield imaging facility extends to the UV region, which represents an important window into a wide variety of astrophysical ...
• Design and Development of DMD Controller Interface for INSIST 

  Jain, Shubhangi (Indian Institute of Astrophysics, 2022-07)

  The INSIST (Indian Spectroscopic and Imaging Space Telescope) is a UV-optical 1m class telescope expected to produce high quality imaging and moderate resolution spectra of astronomical sources. A DMD is an optical ...
• Development of Spectrograph in FUV region for a possible ISRO flight 

  Jadhav, Sujay Vijay (Indian Institute of Astrophysics, 2021-07)

  The FUV (900-1800 Å) is the richest part of the spectrum in terms of emission lines – O VI (1032/1038 Å) and C IV (1548/1550 Å) from hot gas, C III (977 Å) and N III (1750 Å) from warm gas, and the Lyman and Werner bands ...
• Prototype tracking system for observing the Sun at decimeter and meter wavelengths 

  Sayuf, Shaik (Indian Institute of Astrophysics, 2021-07)

  The outer atmosphere of the Sun is observed to be a very hot plasma medium. Since the frequency of electromagnetic wave emission from a plasma medium depends on the electron number density, high frequency radio waves ...
• Design and development of atmospheric dispersion corrector and fiber positioner for TMT-HROS 

  Manjunath, B (Indian Institute of Astrophysics, 2021-07)

  Earth’s atmosphere is one of the significant factors affecting the quality of ground-based observations. For off-zenith observations with ground-based astronomical telescopes, the image size on the telescope's focal plane ...
• Development of wavefront sensing system for high order AO system 

  Shubham Jankiram, Ghatul (Indian Institute of Astrophysics, 2021-07)

  The ground-based stellar astronomy suffers from the atmospheric turbulence diminishing minute details in the images taken of celestial objects. Adaptive Optics is a tool that comes to the rescue of the astronomers who wish ...
• Design aspects of multi-slit spectropolarimeter for national large solar telescope 

  Khan, Raveena (Indian Institute of Astrophysics, 2020-07)

  Magnetic field aids in coupling between different layers of the solar atmosphere. The magnetic field information simultaneously at multiple heights is important to understand many physical processes like flares, coronal ...
• Prototype tracking system for observing the Sun at decimeter and meter wavelengths 

  Saraswathi Kalyani, S (Indian Institute of Astrophysics, 2020-07)

  The outer atmosphere of the Sun is understood to be a very hot plasma medium. The frequency of the electromagnetic emission from a hot plasma medium depends on its electron density distribution. Since the electron density ...
• Study on the effects of mount induced errors, temperature induced errors and basic alignment errors of TMT primary mirror segments on the image quality using PSSN metric 

  Bandyopadhyay, Soumya (Indian Institute of Astrophysics, 2019-06)

  Thirty meter telescope is one of the new class of extremely large telescopes which have a segmented primary mirror of thirty meter of total aperture that consists of 492 hexagonal segments. Several error sources like ...
• Calibration of subsystems of visible emission line coronagraph 

  Pruthvi, Suryadevara (Indian Institute of Astrophysics, 2019-07)

  Aditya-L1, India’s first mission with multiple science payloads is designed to study the solar dynamics. Aditya-L1 includes multiple payloads, the significant one being the Visible Emission Line Coronagraph (VELC). ...
• Study and design of a soft X-ray imager and spectrometer for observation of non-flaring Sun 

  Choudhary, Sarthak (Indian Institute of Astrophysics, 2019-06)

  The outer most layer of the Sun, also called Corona, reaches temperatures as high as a few million Kelvin much hotter than underlying photosphere and chromosphere. This phenomenon is popularly known as coronal heating. ...
• Calibration of spectral channels for VELC onboard ADITYA-L1 and preparing data pipeline 

  Madhu, Vishnu (Indian Institute of Astrophysics, 2019-06)

  ADITYA-L1 will be India’s first space mission dedicated to solar studies. The Visible Emission Line Coronagraph (VELC) is one of the prime payloads onboard ADITYA L1. VELC will perform simultaneous imaging, spectroscopy ...
• Single shot solar spectroscopic design aspects 

  Mathur, Harsh (Indian Institute of Astrophysics, 2019-06)

  High time-cadence Spectro-Polarimetry allows the feasibility of studying magnetic field evolution coupled with the plasma flows. Such a high cadence solar spectro-polarimetry if developed will allow one to study magnetic ...
• Development of 6U spectrograph payload for NUV studies 

  Bharat Chandra, P (Indian Institute of Astrophysics, 2019-06)

  A pulsar is a highly magnetized rapidly rotating neutron star. Weighing more than our Sun, yet only about 20 km in diameter, these incredibly dense objects produce radio beams that sweep the sky like a lighthouse. Pulsars ...
• Development of radio antenna array and receiver system for observations of Pulsars at Low Radio Frequencies 

  Bane Kshitij, Suhas Trupti (Indian Institute of Astrophysics, 2019-06)

  A pulsar is a highly magnetized rapidly rotating neutron star. Weighing more than our Sun, yet only about 20 km in diameter, these incredibly dense objects produce radio beams that sweep the sky like a lighthouse. Pulsars ...
• Study on phasing of segmented mirrors using the dispersed fringe technique 

  Dharmadhikari, Radhika (Indian Institute of Astrophysics, 2020-07)

  The segmented mirror technology is being extensively used these days in astronomical telescopes, in order to achieve higher resolution and sensitivity with lower manufacturing costs. To make the segments work like a ...
• Instrument design for the observation of the sun at near IR wavelengths: (around 1.6 µ) 

  Aritra Chakrabarty (Indian Institute of Astrophysics, 2016-07)

  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 ...
• High precision full stokes spectropolarimetry of the sun as a star instrument design aspects 

  Souvik Bose (Indian Institute of Astrophysics, 2016-07)

  The sun is very interesting particularly because it is very dynamic. The magnetic field plays a major role in governing dynamics of the sun. Many interesting features like sunspots, flares, prominences, and Coronal Mass ...
• Optical Design of the Dual Beam Imaging Polarimeter (DBIP) for the 1.3m JCB telescope in Kavalur 

  Pavankumar, K (Indian Institute of Astrophysics, 2016-07)

  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 ...

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