Greetings everyone, Krittika: The Astronomy Club is pleased to invite you to a talk by Prof. Bhaswati Mookerjea, Chairperson of the Department of Astronomy and Astrophysics, TIFR Mumbai on how Observations of molecular spectra can be used to understand the formation of high mass stars and their feedback As galaxies evolve the gas in them is cycled through multiple epochs of star formation. Among the stars in a galaxy the ones more massive than 8 Solar Mass affect the interstellar gas the most through radiative (UV photons) and mechanical feedback (stellar winds, shocks, supernovae). The feedback can either shred the cloud and halt further star formation or can trigger formation of a large number of stars by creating physical conditions that lead to the collapse of a molecular cloud that otherwise may not contract and fragment spontaneously. Thus understanding the birth and early life of the high mass (>8 Solar Mass) is vital towards deciphering the puzzle of galactic evolution. Surprisingly, our understanding regarding the formation of massive stars is incomplete and involves several theoretical and observational challenges. Date: 14th March 2026 (Saturday) Time: 5:00 PM Venue: LC201, Lecture Complex The talk is open to all students, faculty and staff. We warmly encourage everyone interested in astronomy, physics or space science to attend. Looking forward to your presence, Best regards, Anvit Khade | 99877 99311 Yash Palwe | 99709 73860 Managers - Krittika, IIT Bombay Regards, Shahu Patil General Secretary Technical Affairs 25-26, IIT Bombay Contact: +91 91460 50850 https://tech-iitb.org https://insti.app/org/techiitb