Open AccessIs primordial 4 He truly from the Big Bang?
Author(s) -
Salvaterra R.,
Ferrara A.
Publication year - 2003
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2003.06528.x
Subject(s) - physics , big bang (financial markets) , astronomy , astrophysics , theoretical physics , economics , finance
Population III stars are now believed to contribute to the observed near infrared background (NIRB) and heavy element pollution of the intergalactic medium. Here we show that a Pop III contribution to the primordial 4 He abundance consistent with NIRB constraints, might mask a lower value for the Big Bang nucleosynthesis (BBN) 4 He abundance.