Estimating the impact of foregrounds on the future detection of Rayleigh scattering
Estimating the impact of foregrounds on the future detection of Rayleigh scattering
复制标题
估计前景对未来瑞利散射检测的影响
DOI:
10.1088/1475-7516/2022/09/048
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发表时间:
2022
影响因子:
6.4
通讯作者:
Meyers, Joel
中科院分区:
文献类型:
--
作者:
Zhu, Yijie;Beringue, Benjamin;Choi, Steve K.;Battaglia, Nicholas;Meerburg, P. Daniel;Meyers, Joel
Rayleigh scattering of the cosmic microwave background (CMB) by neutral hydrogen shortly after recombination leaves frequency-dependent imprints on intensity and polarization fluctuations. High signal-to-noise observations of CMB Rayleigh scattering would provide additional insight into the physics of recombination, including greater constraining power for parameters like the primordial helium fraction, the light relic density, and the sum of neutrino masses. However, such a measurement of CMB Rayleigh scattering is challenging due to the presence of astrophysical foregrounds, which are more intense at the high frequencies, where the effects of Rayleigh scattering are most prominent. Here we forecast the detectability of CMB Rayleigh scattering including foreground removal using blind internal linear combination methods for a set of near-future surveys. We show that atmospheric effects for ground-based observatories and astrophysical foregrounds pose a significant hindrance to detecting CMB Rayleigh scattering with experiments planned for this decade, though a high-significance measurement should be possible with a future CMB satellite.
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影响因子:
6.4
作者:
B. Beringue;P. Meerburg;Joel Meyers;N. Battaglia
通讯作者:
B. Beringue;P. Meerburg;Joel Meyers;N. Battaglia
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
Qingjuan Yu;D. Spergel;J. Ostriker
通讯作者:
J. Ostriker
影响因子:
6.4
作者:
Ghigna T.;Matsumura T.;Patanchon G.;Ishino H.;Hazumi M.
通讯作者:
Hazumi M.
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Elham Alipour;K. Sigurdson;C. Hirata
通讯作者:
C. Hirata
影响因子:
6.4
作者:
Abitbol M
通讯作者:
Abitbol M