IIAP Ph.D.Theses

 

Recent Submissions

  • Amit Kumar Mandal (Indian Institute of Astrophysics, 2021-06)
    Active galactic nuclei (AGN) are the persistent high luminosity sources powered by accretion of matter onto super massive black holes (SMBHs) at their centres. They are known to show flux variation and this property can ...
  • Sharma, Ekta (Indian Institute of Astrophysics, 2020-11)
    Stars form in the densest regions of molecular clouds which are actually gravitationally unstable cores that resides at the junction of filaments. Before the onset of the gravitational collapse in cores, the build up of ...
  • Bhowmick, A (Indian Institute of Astrophysics, 2020-12)
    The existence of hydrogen-deficient stars in a hydrogen-dominated universe in itself, sparks a considerable curiosity to explore their origin and evolution. Very rare in nature, the peculiar characteristics of these ...
  • Roy, Tridib (Indian Institute of Astrophysics, 2020-06)
    The thesis is mainly focused on the modeling of pulsar radio emission and polarization. The radio emission mechanism of pulsar is not fully understood, because of the lack of understanding about the kinematical processes ...
  • Pavana, M (Indian Institute of Astrophysics, 2020-09)
    Novae are interacting binary star systems consisting of a Roche-lobe filling secondary on or near the main sequence, losing hydrogen-rich material through the inner-Lagrangian point onto an accretion disc surrounding the ...
  • Prerna Rana (Indian Institute of Astrophysics, 2020-08)
  • Megha, A (Indian Institute of Astrophysics, 2020-05)
    Magnetic fields are ubiquitous in astrophysical plasmas. They are responsible for most of the stellar activities and they manifest in numerous ways in the stellar atmospheres. The Sun being our nearest star is the natural ...
  • Bhoomika (Indian Institute of Astrophysics, 2020-07)
    Blazars are a class of active galactic nuclei (AGN) that have relativistic jets that are oriented close to the observers line of sight. They display ux variability across the en- tire accessible electromagnetic spectrum ...
  • Satya Ranjan Behera (Indian Institute of Astrophysics, 2020)
    Adaptive Optics (AO) is a real time wave-front correction technique, through which the light coming from the stars can be corrected for the effects of atmospheric turbulence. This enables the ground based telescope to reach ...
  • Bhattacharyya, Dipanweeta (Indian Institute of Astrophysics, 2020-01)
    The connection of the SMBHs to their host galaxies is evidenced by the strong correlation between the mass of SMBH and velocity dispersion, σ, of the stars in rest of the galaxy. This is somewhat surprising because the ...
  • 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 ...
  • Kataria, Sandeep Kumar (Indian Institute of Astrophysics, 2019-07)
    Observations of galaxies show that in the nearby universe we see that approximately 2/3 of the disk galaxies are barred ones (Eskridge et al., 2000). The formation and evolution scenarios of bars are mainly studied with ...
  • Avijeet Prasad (Indian Institute of Astrophysics, 2015-05)
    Magnetic fields are ubiquitous in the universe and play an important role in variety of astrophysical phenomenon. It is thus very important to understand the origin, structure and strength of these astrophysical magnetic ...
  • Susmitha Rani, A (Indian Institute of Astrophysics, 2017-07)
    The thesis, in general aims at studying the early history of the Milkyway through the chemical abundances of metal poor stars in the Halo and in the satellite galaxies of the Milkyway. Halo of a galaxy is one of the early ...
  • Prasanta Kumar Nayak (Indian Institute of Astrophysics, 2019-08)
    The Magellanic Clouds (MCs), neighbouring galaxies to the Milky Way (MW), consist of a pair of irregular type of galaxies : Large Magellanic Cloud (LMC) and Small Mag- ellanic Cloud (SMC). The recent proper motion study ...
  • Datta, A (Indian Institute of Astrophysics, 2017-05)
    Solar atmosphere is stratified and exhibits dynamic structures with confined hot plasmas. The corona consists of dynamic magnetic structures, in the form of closed and open loops with an enhanced plasma density. Moreover, ...
  • Snehalata Sahu (Indian Institute of Astrophysics, 2019-09)
    Globular Clusters (GCs) are the systems that contains million of stars bound together by gravity forming a spherical distribution. As the timescales of dynamical encounters occurring in these dense systems are shorter ...
  • Anantha, Ch (Indian Institute of Physics, 2015-08)
    Modern astronomical spectrographs have been in use for several hundred years now, contributing to the study of the physical, chemical and kinematical properties of stars and other celestial bodies. In the recent years, ...
  • Arun Surya (Indian Institute of Astrophysics, 2015-06)
    Single aperture speckle interferometry (Labeyrie, 1970) is a method that de- ciphers diffraction limited spatial Fourier spectrum and image features of stellar objects by counteracting blurring effect caused by the ...
  • Dhar, A (Indian Institute of Astrophysics, 2013-08)
    Ultracold atoms is one of the most rapidly expanding fields of modern science. Its ap- plications are not restricted to just atomic and molecular physics, but also to condensed matter physics, astrophysics, quantum ...

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