TY - JOUR
T1 - Spectral distortion of the CMB by the cumulative CO emission from galaxies throughout cosmic history
AU - Mashian, Natalie
AU - Loeb, Abraham
AU - Sternberg, Amiel
N1 - Publisher Copyright:
© 2016 The Authors.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - We show that the cumulative CO emission from galaxies throughout cosmic history distorts the spectrum of the cosmic microwave background at a level that is well above the detection limit of future instruments, such as the Primordial Inflation Explorer. The modelled CO signal has a prominent bump in the frequency interval 100-200 GHz, with a characteristic peak intensity of ~2 × 10-23 Wm-2 Hz-1 sr-1. Most of the CO foreground originates from modest redshifts, z ~ 2-5, and needs to be efficiently removed for more subtle distortions from the earlier Universe to be detected.
AB - We show that the cumulative CO emission from galaxies throughout cosmic history distorts the spectrum of the cosmic microwave background at a level that is well above the detection limit of future instruments, such as the Primordial Inflation Explorer. The modelled CO signal has a prominent bump in the frequency interval 100-200 GHz, with a characteristic peak intensity of ~2 × 10-23 Wm-2 Hz-1 sr-1. Most of the CO foreground originates from modest redshifts, z ~ 2-5, and needs to be efficiently removed for more subtle distortions from the earlier Universe to be detected.
KW - Cosmic background radiation
KW - Cosmology: theory
KW - Early universe
KW - Intergalactic medium
UR - http://www.scopus.com/inward/record.url?scp=84963591509&partnerID=8YFLogxK
U2 - 10.1093/mnrasl/slw027
DO - 10.1093/mnrasl/slw027
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84963591509
SN - 1745-3925
VL - 458
SP - L99-L103
JO - Monthly Notices of the Royal Astronomical Society: Letters
JF - Monthly Notices of the Royal Astronomical Society: Letters
IS - 1
ER -