Passion for understanding
Observing the First Billion Years
Modern telescopes and techniques to study early galaxies and the cosmic dawn Astronomers often describe the first billion years of cosmic history as the “cosmic dawn,” referring to the epoch...
Observing the First Billion Years
Modern telescopes and techniques to study early galaxies and the cosmic dawn Astronomers often describe the first billion years of cosmic history as the “cosmic dawn,” referring to the epoch...
Active Galactic Nuclei in the Young Universe
Quasars and luminous AGN as signposts of rapid accretion onto central black holes In the earliest eras of galaxy formation, certain objects outshone entire galaxies by factors of hundreds to...
Active Galactic Nuclei in the Young Universe
Quasars and luminous AGN as signposts of rapid accretion onto central black holes In the earliest eras of galaxy formation, certain objects outshone entire galaxies by factors of hundreds to...
Galaxy Clusters and the Cosmic Web
Filaments, sheets, and voids of matter spanning vast scales, reflecting early density seeds When we look across the night sky, the billions of stars we see belong mostly to our...
Galaxy Clusters and the Cosmic Web
Filaments, sheets, and voids of matter spanning vast scales, reflecting early density seeds When we look across the night sky, the billions of stars we see belong mostly to our...
Merging and Hierarchical Growth
How small structures merged over cosmic time to form larger galaxies and clusters From the earliest epochs following the Big Bang, the universe began organizing itself into a tapestry of...
Merging and Hierarchical Growth
How small structures merged over cosmic time to form larger galaxies and clusters From the earliest epochs following the Big Bang, the universe began organizing itself into a tapestry of...
Feedback Effects: Radiation and Winds
How early starburst regions and black holes regulated further star formation In the cosmic dawn, the first stars and nascent black holes were not mere passive inhabitants of the early...
Feedback Effects: Radiation and Winds
How early starburst regions and black holes regulated further star formation In the cosmic dawn, the first stars and nascent black holes were not mere passive inhabitants of the early...
Primordial Supernovae: Element Synthesis
How first-generation supernova explosions enriched their surroundings with heavier elements Before galaxies evolved into the majestic, metal-rich systems we see today, the universe’s very first stars—collectively known as Population III—...
Primordial Supernovae: Element Synthesis
How first-generation supernova explosions enriched their surroundings with heavier elements Before galaxies evolved into the majestic, metal-rich systems we see today, the universe’s very first stars—collectively known as Population III—...