SDSS-III astronomers announce today the first detection of BAO in the Lyman-alpha forest 11 billion years ago. The paper has been submitted to Astronomy & Astrophysics and is available on arXiv:
“Baryon Acoustic Oscillations in the Ly-α forest of BOSS quasars”
N. Busca et al.
Submitted to Astronomy & Astrophysics
http://arxiv.org/abs/1211.2616
The new BOSS Lyman-alpha measurement of H(z)/(1+z) is illustrated by the red dot.
The Lyman-alpha forest is detected through the imprint of hydrogen cloud absorpt
ion lines on the light from background quasars.
For more details see today’s press release at
hi guys. just wanted to let you know that there is a typo in the arxiv link you mentioned in the post. Seems the right one is http://arxiv.org/abs/1211.2616
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âBOSS Detects Baryon Acoustic Oscillations in the
Lyman-alpha Forest at z of 2.3. « Science Blog from the
SDSS-IIIâ was a terrific blog post. If it possessed more pics it would likely be possibly even
much better. Thank u ,Arlie