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 ...

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 ...

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 ...

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 ...

The thesis aims to study the chemical abundances of very metal poor Milky Way halo stars and Globular cluster stars, to understand their possible common origin. Halo stars and globular clusters belong to the oldest stellar ...

The next generation large astronomical telescopes are primarily made of segmented mirrors and construction of such a telescope is a big challenge. It require enormous amount of works to conceptualize various sub-systems, ...

The Cosmic Microwave Background (CMB) is the oldest light in the Universe and gives us access to a picture of the Universe when it was only ≈ 300,000 years old. The CMB radiation consists of photons free streaming to us ...

Energetic emission from the Sun can be divided into two broad categories, viz. gradual and impulsive. It is inferred from white-light observations that the first group is associated with mass ejections from the solar ...

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 ...

Low frequency radio observations of the solar corona provide valuable information on the heliocentric distance range ≈ 1.1R - 3R , which is relatively difficult to observe from other wavelengths. These observations are ...