80 citations · 161 across the 5 of their papers we have counts for
5 papers
Segue 1 - A Compressed Star Formation History Before Reionization
David Webster, Anna Frebel, Joss Bland-Hawthorn
Segue 1 is the current best candidate for a "first galaxy", a system which experienced only a single short burst of star formation and has since remained unchanged. Here we present…
Ultrafaint Dwarf Galaxies - the lowest mass relics from before reionization
Joss Bland-Hawthorn, Ralph Sutherland, David Webster
New observations indicate that ultrafaint dwarf galaxies (UFD) -- the least luminous systems bound by dark matter halos (<10^5 Lsun) -- may have formed before reionization. The ext…
The Chemical Evolution of Very Metal-Poor Damped Lyman- Systems
David Webster, Joss Bland-Hawthorn, Ralph S. Sutherland
In earlier work we showed that a dark matter halo with a virial mass of M can survive feedback from its own massive stars and form stars for Myr. We als…
Star Formation in Ultrafaint Dwarfs: Continuous or Single-age Bursts?
David Webster, Joss Bland-Hawthorn, Ralph S. Sutherland
We model the chemical evolution of six UFDs: Bootes I, Canes Venatici II, Coma Berenices, Hercules, Leo IV and Ursa Major I, based on their recently determined star formation histo…
Ultrafaint Dwarfs - Star Formation and Chemical Evolution in the Smallest Galaxies
David Webster, Ralph Sutherland, Joss Bland-Hawthorn
In earlier work we showed that a dark matter halo with a virial mass of M can retain a large percentage of its baryons in the face of the pre-ionization phase and su…