Astrophysics Seminar
An Arctic Window into the Ultra-Low Frequency Universe
Speaker: Aman Chokshi (McGill University)
तिथि और समय
कार्यक्रम का स्थान
Library Block Lecture Hall
अमूर्त
The ultra-low-frequency radio sky, below 30 MHz, remains one of the least explored frontiers in astronomy. Long thought to be inaccessible from Earth due to the ionosphere, these wavelengths can in fact leak through in special locations near the magnetic poles.
In this talk, I’ll introduce the ALBATROS interferometric array, a telescope designed to chart the nearby Universe at these unexplored frequencies, with the long-term goal of probing the Dark Ages and Cosmic Dawn. I’ll also share stories from our recent expeditions to Axel Heiberg Island in the Canadian High Arctic, one of the most remote radio-quiet environments on the planet.
Short Biography
Aman Chokshi is a Trottier Space Institute Fellow at McGill University, developing instrumentation and calibration techniques for low-frequency radio astronomy. His research has taken him from the radio-quiet deserts of Western Australia to the Canadian High Arctic, where he works on experiments designed to open new windows on the early Universe. His interests lie in building novel astronomical instruments and deploying them in remote environments to enable observations that would otherwise be impossible. He obtained his PhD at the University of Melbourne and In November, he will join Curtin University as a Forrest Fellow.