Evolution of a Milky Way-like Galaxy and its Satellite Galaxies

Pardasani, Bhavya

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https://hdl.handle.net/2142/114202 Copy

Description

Title

Evolution of a Milky Way-like Galaxy and its Satellite Galaxies

Author(s)

Pardasani, Bhavya

Contributor(s)

Wetzel, Andrew

Issue Date

2022

Keyword(s)

Astronomy

Abstract

The panels depict the gas density in a simulation of a Milky Way-like galaxy (“Louise,” at center) as it consumes smaller satellite galaxies over a period of 10 billion years. From top to bottom and left to right, the images show Louise and the surrounding galaxies every 2 billion years until the end of the simulation (z=0 or today). The simulation is meant to represent the evolution of our own galaxy and how it interacts with and has been built up from smaller galaxies. The small dark/bright spots in the gaseous host halo are infalling low-mass satellite galaxies that are consumed by the larger host galaxy. The snapshots show how satellites that fell in earlier no longer exist as independent galaxies, but they leave behind dense trails of gas in the local environment illustrating the path of the pre-existing satellite. This figure exemplifies my efforts to study the evolution of the Milky Way and its satellites via cosmological simulations, focusing on the hydrodynamic interactions of the gaseous halo surrounding the Milky Way with the gas in satellite galaxies.

Type of Resource

• Text
• Image

Language

eng

Permalink

http://hdl.handle.net/2142/114202

Copyright and License Information

Copyright 2022 Bhavya Pardasani

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