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astro-ph2007★ 22 cited
Cosmic Ray production of Beryllium and Boron at high redshift
Emmanuel Rollinde, David Maurin, Elisabeth Vangioni +2
Recently, new observations of Li6 in Pop II stars of the galactic halo have shown a surprisingly high abundance of this isotope, about a thousand times higher than its predicted pr…
astro-ph2007★ 1 cited
Evidence for overdensity around z_em > 4 quasars from the proximity effect
Rodney Nascimento Guimaraes, Patrick Petitjean, Emmanuel Beaumont Rollinde +5
We study the density field around z_em > 4 quasars using high quality medium spectral resolution ESI-Keck spectra (R~4300, SNR > 25) of 45 high-redshift quasars selected from a tot…