[institut] Seminar Katedre za astronomiju - 02. jun 2015.

[Katedra za astronomiju]

                     Seminar iz astronomije i astrofizike

                                 Zarija Lukic

                   (Lawrence Berkeley National Laboratory)

         "Studying the evolution of the Universe with quasar spectra"

             utorak, 02. jun 2015. godine, u 18 sati, u ucionici 809.




Dodatak glavnom predavanju: Identifying materials using cosmic rays, and 
the application on damaged cores at Fukushima power plant


Apstrakt:

The Lyman-alpha forest in spectra of distant quasars is the main tracer of 
cosmological structure at high redshifts, 2<z<5, and is accessible to 
current (BOSS/eBOSS) and future (DESI) spectroscopic sky surveys. On 
large-scales, the Ly-a power spectrum can be used as a standard ruler, 
measuring the scale of Baryon acoustic oscillations (BAO). On 
small-scales, the Ly-a forest enables constraining neutrino masses, and 
more generally opens an additional window into the nature of dark matter. 
Extracting precision cosmology information from the forest statistics 
amounts to solving inverse problem, i.e. running accurate simulations for 
a large number of different cosmologies, which are to be compared against 
the observations. I will present latest BOSS results, as well as Nyx code 
we have build to efficiently run Lyman-alpha forest simulations on 
massively parallel computers.

In addition, a separate topic on identifying materials using cosmic rays 
and its application on damaged cores at Fukushima power plant will also be 
discussed.
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DEPARTMENT OF ASTRONOMY
Faculty of Mathematics
University of Belgrade

Studentski trg 16
11000 Belgrade
Serbia

phone:     ++ 381 11 2027 825

fax:       ++ 381 11 2630 151

e-mail:    astronom at matf.bg.ac.rs

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