The astronomical sources which show sudden change in the physical conditions and character because of some kind of explosion or collision (e.g. supernovae, gamma-ray bursts, neutron star mergers), or of accretion of matter (nova outbursts, tidal disruption events, AGN flares) are called Transient sources.
1- The aim of the research project is to understand the physical mechanism and other properties of peculiar novae using the good quality data from 3.6m ARIES, 2m HCT as well as 8-10m class telescopes. The prime objectives will be studying and understanding the characteristics of novae in details like understanding the process of dust formation in these objects, studying the evolution of spectra in the optical and IR, identifying and understanding the different lines that are seen in the optical and near-IR spectra like their strengths, temporal variations etc. and investigating the physical properties of the underlying system.
2. Investigation of dust around early-type stars of low luminosity. The existence of large amounts of circumstellar (CS) matter near hot stars with initially 2–20 solar masses is a long-standing puzzle of stellar astrophysics. The high-resolution spectroscopic observations will be done using HESP (HCT, IIA) and other national and international facilities to solve this puzzle.
Indian Centre for Space Physics (ICSP), Kolkata, India
Assistant Professor II
Department of Physics and Astrophysics, University of Delhi, India
Research Associate
Indian Institute of Astrophysics (IIA), Bengaluru, India
Postdoctoral Fellow
Korea Astronomy and Space Science Institute (KASI), South Korea
Postdoctoral Fellow
Physical Research Laboratory (PRL), Ahmedabad, India
Postdoctoral Fellow
Ph.D., Astronomy, Physical Research Laboratory (PRL), Ahmedabad, India
M. Sc. (Physics), Banaras Hindu University (BHU), Varanasi, India
B. Sc. (Hons.), Banaras Hindu University (BHU), Varanasi, India