Zahedy

A High-Definition View of the Baryon Cycle and its Impact on Galaxy Evolution
Observations of diffuse gas in this circum-galactic medium (CGM) provide the most direct means to understand the baryon cycle, and how the growth of galaxies is profoundly influenced by the interplay of gas accretion from/outflows into their surroundings. However, traditional observations of the CGM are limited by the use of single background sightlines, providing only a 1D view of the CGM of individual galaxies. With my research program, I aim to study the CGM in higher spectral and spatial definitions than previously possible, to achieve a deeper understanding of the coevolution of galaxies and their gas. In this talk, I will introduce my current work and future plan to use gravitationally lensed distant quasars to characterize large-scale gas flows in the CGM over 12+ Gyr of cosmic history. With the multiple images of a lensed quasar acting as independent probes of the CGM of foreground galaxies, we can now move beyond traditional one-point sampling of the CGM.

A High-Definition View of the Baryon Cycle and its Impact on Galaxy Evolution

Observations of diffuse gas in this circum-galactic medium (CGM) provide the most direct means to understand the baryon cycle, and how the growth of galaxies is profoundly influenced by the interplay of gas accretion from/outflows into their surroundings. However, traditional observations of the CGM are limited by the use of single background sightlines, providing only a 1D view of the CGM of individual galaxies. With my research program, I aim to study the CGM in higher spectral and spatial definitions than previously possible, to achieve a deeper understanding of the coevolution of galaxies and their gas. In this talk, I will introduce my current work and future plan to use gravitationally lensed distant quasars to characterize large-scale gas flows in the CGM over 12+ Gyr of cosmic history. With the multiple images of a lensed quasar acting as independent probes of the CGM of foreground galaxies, we can now move beyond traditional one-point sampling of the CGM.

ESO — Reaching New Heights in Astronomy

Zahedy

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