122 citations · 493 across the 8 of their papers we have counts for
4 papers · 1 filter
The Stellar Halos of Massive Elliptical Galaxies II: Detailed Abundance Ratios at Large Radius
Jenny E Greene, Jeremy D Murphy, Genevieve J Graves +4
We study the radial dependence in stellar populations of 33 nearby early-type galaxies with central stellar velocity dispersions sigma* > 150 km/s. We measure stellar population pr…
The Structure of Reionization in Hierarchical Galaxy Formation Models
Han-Seek Kim, J. Stuart B. Wyithe, Sudhir Raskutti +2
Understanding the epoch of reionization and the properties of the first galaxies represents an important goal for modern cosmology. The structure of reionization, and hence the obs…
Thermal constraints on the reionisation of hydrogen by population-II stellar sources
Sudhir Raskutti, James S. Bolton, J. Stuart B. Wyithe +1
Measurements of the intergalactic medium (IGM) temperature provide a potentially powerful constraint on the reionisation history due to the thermal imprint left by the photo-ionisa…
Improved measurements of the intergalactic medium temperature around quasars: possible evidence for the initial stages of He-II reionisation at z~6
James S. Bolton, George D. Becker, Sudhir Raskutti +3
We present measurements of the intergalactic medium (IGM) temperature within ~5 proper Mpc of seven luminous quasars at z~6. The constraints are obtained from the Doppler widths of…