Kahniashvili, Tina და Maravin, Yurii და Natarajan, Aravind და Battaglia, Nick და Tevzadze, Alexander (2013) Constraining Primordial Magnetic Fields through Large-scale Structure. Astrophysical Journal, 770. С. 47-54.
|
ტექსტი
kmnbt13.pdf Download (713kB) | გადახედვა |
რეზიუმე
We study primordial magnetic field effects on the matter perturbations in the universe. We assume magnetic field generation prior to the big bang nucleosynthesis (BBN), i.e., during the radiation-dominated epoch of the universe expansion, but do not limit analysis by considering a particular magnetogenesis scenario. Contrary to previous studies, we limit the total magnetic field energy density and not the smoothed amplitude of the magnetic field at large (of the order of 1 Mpc) scales. We review several cosmological signatures, such as halo abundance, thermal Sunyaev-Zel'dovich effect, and Lyα data. For a cross-check, we compare our limits with that obtained through the cosmic microwave background faraday rotation effect and BBN. The limits range between 1.5 nG and 4.5 nG for nB in (- 3; -1.5).
| ობიექტის ტიპი: | სტატია |
|---|---|
| თემატიკა: | Q Science > QB Astronomy Q Science > QC Physics |
| განმათავსებელი მომხმარებელი: | Prof. Tina Kahniashvili |
| განთავსების თარიღი: | 29 იანვარი 2014 20:29 |
| ბოლო ცვლილება: | 27 მარტი 2015 07:09 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/770 |
Actions (login required)
 |
ობიექტის ნახვა |
