Contents

1 Introduction

2 Implications of galaxy buildup for putative IMF variations in massive galaxies

3 Variations in α-element ratios trace the chemical evolution of the disk

4 Data-driven derivation of stellar properties from photometric time series data using convolutional neural networks

5 Conclusion

Chapter 1

Introduction

Chapter 2

Implications of galaxy buildup for putative IMF variations in massive galaxies

Chapter 3

Variations in α-element ratios trace the chemical evolution of the disk

Chapter 4

Data-driven derivation of stellar properties from photometric time series data using convolutional neural networks

Chapter 5

Concluding remarks