Tracing gas flows in and around galaxies


Cosmological simulations predict that galaxies form in groups and filaments where the interplay between the cold gas flowing inside galaxies and outflowing winds play a key role in growth of galaxies with time. While this picture clearly emerges from simulations, observations of this baryon cycle remain scarce. In the first part of the talk I will discuss our efforts to understand the baryon cycle - galactic (in)outflowing gas using metal absorbers in quasar spectra over cosmic timeline as well as to investigate the link between the pristine neutral hydrogen (H I) gas to star-formation within and around galaxies at cosmic noon. In the second part of the talk, I will discuss the elusive X-shaped radio galaxies, showing two sets of radio jets,  and discuss the possible origin of X-shaped phenomena.

Ravi Joshi
Zoom meeting ID: 852 9446 3987 Passcode: 195396
Friday, March 5, 2021 - 2:00PM to Friday, March 5, 2021 - 3:00PM