The currently accepted model of cosmology is that our Universe consisted of dense matter and energy at early times. With time, the Universe expanded and cooled down, thus allowing formation of galaxies, stars, planets and life. Understanding the sequence of these events using a combination of advanced observations and sophisticated theoretical models is a big challenge. In spite of that, cosmologists have achieved some significant breakthroughs in the last couple of decades. The lecture will discuss these breakthroughs and summarise some of the most important cosmological events in the history of our Universe.
About The Speaker:
Tirthankar Roy Choudhury is a theoretical astrophysicist working at the National Centre for Radio Astrophysics, Tata Institute of Fundamental Research in Pune. He did his PhD from IUCAA (Pune) and worked in postdoctoral positions at SISSA (Trieste) and IoA (Cambridge). He worked as a faculty at HRI (Allahabad) before moving to his present position. His research is focussed on cosmology, mainly the formation of the first stars in the Universe. Besides his research, Tirthankar enjoys teaching physics and astrophysics subjects. He is also involved in Indian participation in building the largest radio telescope in the world, the Square Kilometre Array.