A Measurement of Small Scale Structure in the 2.2 < z < 4.2 Lyman-alpha Forest (2009)
Lidz, Adam, Dall'Aglio, Aldo, McQuinn, Matthew, Fechner, Cora, Zaldarriaga, Matias, ...
The amplitude of fluctuations in the Ly-a forest on small spatial scales is sensitive to the temperature of the IGM and its spatial fluctuations. The temperature of the IGM and its spatial variations...
Frebel, Anna, Christlieb, Norbert, Norris, John E., Beers, Timothy C., Bessell, Michael S., Rhee, Jaehon, ...
We present a sample of 1777 bright (9 < B < 14) metal-poor candidates selected from the Hamburg/ESO Survey (HES). Despite saturation effects present in the red portion of the HES objective-prism...
Frebel, Anna, Christlieb, Norbert, Norris, John E., Beers, Timothy C., Bessell, Michael S., Rhee, Jaehon, ...
Abstract not available.
Frebel, Anna, Christlieb, Norbert, Norris, John E., Beers, Timothy C., Bessell, Michael S., Rhee, Jaehon, ...
Abstract not available.
Frebel, Anna, Christlieb, Norbert, Norris, John E., Beers, Timothy C., Bessell, Michael S., Rhee, Jaehon, ...
Abstract not available.
Frebel, Anna, Christlieb, Norbert, Norris, John E., Beers, Timothy C., Bessell, Michael S., Rhee, Jaehon, ...
Abstract not available.
Frebel, Anna, Christlieb, Norbert, Norris, John E., Beers, Timothy C., Bessell, Michael S., Rhee, Jaehon, ...
Abstract not available.
Nucleosynthetic signatures of the first stars (2005)
Frebel, Anna, Aoki, Wako, Christlieb, Norbert, Ando, Hiroyasu, Asplund, Martin, Barklem, Paul S., ...
The chemically most primitive stars provide constraints on the nature of the first stellar objects that formed in the Universe; elements other than hydrogen, helium and traces of lithium within these...
The metagalactic UV background at z < 3 (2005)
The high ionization state of the intergalactic medium (IGM) is maintained by the metagalactic UV background radiation. This ionizing radiation field is supposed to be the integrated radiation of...
The associated system of HE2347-4342 (2004)
Fechner, Cora, Baade, Robert, Reimers, Dieter
We present an analysis of the complex associated system of the high-redshift QSO HE2347-4342. Absorption features of HI, CIII, CIV, NV, and OVI with up to 16 components occur in the optical spectral...