Astrophysicist Duncan Lorimer Highlights Universe’s Expansion and Indian Contributions

World-renowned astrophysicist Prof. Duncan Lorimer stated that the “universe is expanding” during a recent discussion in New Delhi on March 18, 2024. He emphasized the potential for new discoveries in astrophysics with the advent of advanced telescopes in the United States and Canada, which are expected to unveil deeper mysteries of the universe.

Speaking at the PM Museum and Library, Lorimer, a professor of physics and astronomy at West Virginia University, discussed the nature of Fast Radio Bursts (FRBs). These intense flashes of radio waves, lasting only milliseconds, originate from billions of light-years away and can emit as much energy in a fraction of a second as the sun does over several weeks. Lorimer, along with his student David Narkevic, first discovered an FRB in 2007, which is now commonly referred to as the ‘Lorimer burst’.

Recognition of Indian Researchers

During the event, Lorimer praised two Indian researchers, Shamil Chatterjee and Shriharsh Tendulkar, for their significant contributions to identifying the host galaxy and origins of repeating FRBs. He highlighted the importance of their work in advancing the understanding of these enigmatic phenomena.

Both Lorimer and his wife, Maura McLaughlin, received the prestigious Shaw Prize, often referred to as the “Nobel Prize of the East,” for their role in the discovery of FRBs. This recognition underscores the global impact of their research in the field of astrophysics.

Exploration of Cosmic Phenomena

When asked about the possibility of extraterrestrial life attempting to communicate through radio frequencies, Lorimer noted that some FRBs might contain unexpected phenomena. He suggested that as researchers analyze an increasing number of signals, they may uncover components that could hint at alien signals. “There might be some components in future with links to aliens,” he stated, though he acknowledged he has not yet observed any direct evidence.

On the topic of the interstellar comet 3I/ATLAS, which entered the Milky Way galaxy last year, Lorimer chose not to engage in the ongoing debate among scientists regarding its characteristics, saying, “I did not follow that story, so I don’t have an opinion on it.”

As he interacted with students during the event, Lorimer shared insights about the origin and characteristics of neutron stars, as well as the nature of radio bursts from various galaxies. His enthusiasm for the subject captivated the audience, making complex scientific concepts accessible to young learners.

Ashwani Lohani, director of the PM Museum and Library, expressed the significance of hosting such a prominent figure in science. He stated, “This interaction is a wonderful opportunity for students, young researchers, and the wider public to engage directly with a scientist whose work has transformed our understanding of the universe.” Lohani emphasized that events like these inspire curiosity and foster a deeper appreciation of India’s growing role in global science.