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The QUEST RR Lyrae Survey: Confirmation of the Clump at 50 kpc and Other Over-Densities in the Outer Halo
A. K. Vivas, R. Zinn, P. Andrews +33
We have measured the periods and light curves of 148 RR Lyrae variables from V=13.5 to 19.7 from the first 100 sq. degrees of the QUEST RR Lyrae survey. Approximately 55% of these…
The Fragmentation of Pre-enriched Primordial Objects
V. Bromm, A. Ferrara, P. S. Coppi +1
Recent theoretical investigations have suggested that the formation of the very first stars, forming out of metal-free gas, was fundamentally different from the present-day case. I…
The Formation of the First Stars. I. The Primordial Star Forming Cloud
Volker Bromm, Paolo S. Coppi, Richard B. Larson
To constrain the nature of the very first stars, we investigate the collapse and fragmentation of primordial, metal-free gas clouds. We explore the physics of primordial star forma…