Our Sun is part of the Milky Way galaxy. But can there be stars without a galaxy? And if so, how do they get out of the galaxy? Over the past couple of decades, astronomers have started detecting inter-galactic stars, stars that reside in the space between galaxies. As it turns out, these stars can provide us with important information about the distribution of dark matter as well. Please join astrophysicist Salman Hameed to talk about these rogue stars in this episode of Kainaati Gup Shup.
Papers mentioned in the video:
Ferguson, H., Tanvir, N. & von Hippel, T. Detection of intergalactic red-giant-branch stars in the Virgo cluster. Nature 391, 461–463 (1998). https://doi.org/10.1038/35087
Mireia Montes and Ignacio Trujillo 2022 ApJL 940 L51
DOI 10.3847/2041-8213/ac98c5
For more information about Kainaat Videos:
https://www.kainaatstudios.com/
Salman Hameed has a PhD in astronomy and is Charles Taylor Chair and Professor of Integrated Science & Humanities at Hampshire College, and a member of the Five College Astronomy Department (FCAD) in Massachusetts, USA. He is also the CEO of the non-profit Kainaat Studios
Credits:
Host/writer: Salman Hameed
Editor: Shehryar Shaikh
Music: Umer Piracha
Subtitles: DigiCircle
Images/animations: IceCube Collaboration; NASA/JPL; STScI; Wikipedia
Support Provided by:
Sahr Foundation
Dr. Zafar Iqbal & Dr. Mehr Iqbal
PixelEdge
AIIR Foundation
Chapters:
00:00 Introduction
00:48 Location of Sun
04:20 Discovery of Rogue Stars
09:00 Galaxy Collisions
11:22 Hypervelocity Stars
13:00 Mapping Dark Matter
15:44 Conclusion
