• A UV and optical study of star formation and AGN activity using the UVIT and MUSE 

  Yadav, Jyoti (Indian Institute of Astrophysics, 2023-05)

  The cold gas accretion and merging of galaxies are two important physical mechanisms which contribute to the building up of galaxies at various epochs of the universe. Thus, it is crucial to understand the role of gas ...
• Investigations of Statistical Properties of Galactic Foreground Components and the CMB 

  Fazlu, Rahman (Indian Institute of Astrophysics, 2023-08)

  Accurate component separation of full-sky maps in the radio and microwave frequencies, such as the cosmic microwave background (CMB), relies on a thorough understanding of the statistical properties of the Galactic foreground ...
• Accretion Disk-Corona connection in Active Galactic Nuclei 

  Pal, Indrani (Indian Institute of Astrophysics, 2023-05)

  Active Galactic Nuclei (AGN), amongst the most luminous sources in the Universe (L = 1042 − 1046 erg s −1 ), emit radiation over the entire electromagnetic band. Though AGN are known to be powered by the accretion of matter ...
• Unravelling the nature of explosion of thermonuclear supernovae 

  Dutta, Anirban (Indian Institute of Astrophysics, 2023-05)

  Type Ia supernovae (SNe Ia) result from thermonuclear explosions in binary systems consisting of at least one carbon-oxygen white dwarf. They are crucial for the understanding of galactic chemical composition as they are ...
• High precision spectroscopy using stabilized Fabry-Perot Etalon 

  Das, Tanya (Indian Institute of Astrophysics, 2021)

  Accurate wavelength calibration is an important factor for any measure ment with high resolution spectrographs. Stellar spectrum comprises of dis crete absorption or emission lines whose position is precisely determined ...
• Investigating the ultra-violet bright stars in star clusters 

  Rani, Sharmila (Indian Institute of Astrophysics, 2023-02)

  Star clusters are gravitationally bound systems composed of a large number of stars, ranging from thousands to millions. As the dynamic age of the cluster is less than the age of the universe, dynamical interactions ...
• Characterization of the Atmosphere of Extrasolar Planets 

  Sengupta, Soumya (Indian Institute of Astrophysics, 2022-05)

  Context: Starting from the first discovery of extrasolar planet or exoplanet around a sun-like star, more than 5,000 confirmed exoplanets have been detected till now. But still we have very less information and interpretations ...
• Kinematics of Coronal Mass Ejections in the Inner Corona and its Coupling with the Heliosphere 

  Majumdar, Satabdwa (Indian Institute of Astrophysics, 2022-07)

  Ever since the dawn of astronomy, we and the Sun have not been celestial strangers anymore, and it was soon realised that there is a close Sun-Earth connection that was awaiting our acknowledgement. With that came several ...
• Precise Transit Photometric Studies of Exoplanets and Exomoons 

  Saha, Suman (Indian Institute of Astrophysics, 2022-09)

  The most challenging limitation in the transit photometry method arises from the noises in the photometric signal. In particular, the ground-based telescopes are heavily affected by the noise due to the perturbation in ...
• A study of the evolution of the bulges and disks of spiral galaxies in interacting and isolated environments 

  Ankit Kumar (Indian Institute of Astrophysics, 2022-11)
• Chemical abundances of metal-poor stars as probes of neutron capture nucleosynthesis 

  Goswami, Partha Pratim (Indian Institute of Astrophysics, 2022-06)

  After more than six decades of the pioneering work of Burbidge, Burbidge, Fowler and Hoyle (1957), which first suggested the production channels and the evolution of neutron-capture elements, many details still remain ...
• Design and development of chromospheric vector magnetograph for sunspot studies 

  Hemanth, P (Indian Institute of Astrophysics, 2019-05)

  Solar atmosphere is permeated with magnetic fields of various spatial scales that exhibit dynamics in various temporal scales. Study of so called active regions and their magnetic field measurements are of paramount ...
• Morphology and topology of cosmological fields during the Epoch of Reionization 

  Akanksha, K (Indian Institute of Astrophysics, 2020-06)
• Radio polarimetric imaging of the solar corona at low frequencies 

  Anshu Kumari (Indian Institute of Astrophysics, 2019-12)

  The coronal magnetic field (B) plays an important role in the formation, evolution, and dynamics of the small, as well as large scale structures in the solar corona. Measurements of the coronal magnetic field strengths, ...
• Aspects of Design and Development of a Near Infrared Photometer for Low Altitude Astronomical Sites 

  Anwesh Kumar, M (Indian Institute of Astrophysics, 2021-01)

  In order to fill the void of observation of bright near infrared astronomical sources, we propose a Near Infrared photometer operating from a low latitude astronomical site. As part of this thesis work, design decisions ...
• Studies on metal-poor stars and chemical enrichment of the Galaxy 

  Shejeelammal, J (Indian Institute of Astrophysics, 2022-06)

  The low- and intermediate-mass stars are the major inhabitants of our Galaxy. They play an important role in the chemical evolution of the Galaxy. These stars have enriched the ISM with the products of various nucleosynthesis ...
• High precision radial velocity studies on VBT echelle spectrograph 

  Sireesha, C (Indian Institute of Astrophysics, 2019-08)

  The Echelle spectrograph operating at Vainu Bappu Telescope (VBT) is a general-purpose instrument designed for high-resolution spectroscopy. It was considered for precision Radial Velocity (RV) measurements without altering ...
• Characterizing Solar Eruptions in Inner Corona using Ground and Space-based Data 

  Ritesh, Patel (Indian Institute of Astrophysics, 2021-08)

  The solar corona is known to be associated with eruptions of large amount of magnetized plasma into the interplanetary space. In-spite of several years of ground- and space-based observations of the solar atmosphere, the ...
• Optimum design and development of segmented mirror telescope optics and phasing system 

  Jacob, A (Indian Institute of Astrophysics, 2020-10)

  Astronomy today is in the path of constructing large telescopes. Due to several manufacturing and maintenance difficulties, large telescopes of more than 8 m are predominantly segmented. To fulfill the need for its growing ...
• Study of the shape and alignment of lensed CMB and large scale structure inferred from the CMB using Minkowski Tensors 

  Goyal, Priya (Indian Institute of Astrophysics, 2021-08)

  The large scale structure in the universe causes arcminute angular scale deflections of the paths of CMB photons, leading to blurring of the acoustic peaks and correlations between different modes. This effect can be ...

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