Detecting primordial

We update the forecasts for the measurement of the tensor-to-scalar ratio r for various ground-based experiments (AdvACT, CLASS, Keck/BICEP3, Simons Array, SPT-3G), balloons (EBEX 10k and Spider) and satellites (CMBPol, COrE and LiteBIRD), taking into account the recent Planck data on polarized dust...

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Detalles Bibliográficos
Autor principal: Zaldarriaga, Matias
Publicado: 2015
Materias:
cosmological parameters from CMBR
gravitational waves and CMBR polarization
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14757516_v2015_n11_p_Creminelli
http://hdl.handle.net/20.500.12110/paper_14757516_v2015_n11_p_Creminelli
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_14757516_v2015_n11_p_Creminelli
record_format dspace
spelling paper:paper_14757516_v2015_n11_p_Creminelli2023-06-08T16:17:55Z Detecting primordial Zaldarriaga, Matias cosmological parameters from CMBR gravitational waves and CMBR polarization We update the forecasts for the measurement of the tensor-to-scalar ratio r for various ground-based experiments (AdvACT, CLASS, Keck/BICEP3, Simons Array, SPT-3G), balloons (EBEX 10k and Spider) and satellites (CMBPol, COrE and LiteBIRD), taking into account the recent Planck data on polarized dust and using a component separation method. The forecasts do not change significantly with respect to previous estimates when at least three frequencies are available, provided foregrounds can be accurately described by few parameters. We argue that a theoretically motivated goal for future experiments is r∼2×10-3, and that this is achievable if the noise is reduced to ∼1 μK-arcmin and lensing is reduced to 10% in power. We study the constraints experiments will be able to put on the frequency and ℓ-dependence of the tensor signal as a check of its primordial origin. Futuristic ground-based and balloon experiments can have good constraints on these parameters, even for r∼2×10-3. For the same value of r, satellites will marginally be able to detect the presence of the recombination bump, the most distinctive feature of the primordial signal. © 2015 IOP Publishing Ltd and Sissa Medialab srl . Fil:Zaldarriaga, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14757516_v2015_n11_p_Creminelli http://hdl.handle.net/20.500.12110/paper_14757516_v2015_n11_p_Creminelli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cosmological parameters from CMBR
gravitational waves and CMBR polarization
spellingShingle cosmological parameters from CMBR
gravitational waves and CMBR polarization
Zaldarriaga, Matias
Detecting primordial
topic_facet cosmological parameters from CMBR
gravitational waves and CMBR polarization
description We update the forecasts for the measurement of the tensor-to-scalar ratio r for various ground-based experiments (AdvACT, CLASS, Keck/BICEP3, Simons Array, SPT-3G), balloons (EBEX 10k and Spider) and satellites (CMBPol, COrE and LiteBIRD), taking into account the recent Planck data on polarized dust and using a component separation method. The forecasts do not change significantly with respect to previous estimates when at least three frequencies are available, provided foregrounds can be accurately described by few parameters. We argue that a theoretically motivated goal for future experiments is r∼2×10-3, and that this is achievable if the noise is reduced to ∼1 μK-arcmin and lensing is reduced to 10% in power. We study the constraints experiments will be able to put on the frequency and ℓ-dependence of the tensor signal as a check of its primordial origin. Futuristic ground-based and balloon experiments can have good constraints on these parameters, even for r∼2×10-3. For the same value of r, satellites will marginally be able to detect the presence of the recombination bump, the most distinctive feature of the primordial signal. © 2015 IOP Publishing Ltd and Sissa Medialab srl .
author Zaldarriaga, Matias
author_facet Zaldarriaga, Matias
author_sort Zaldarriaga, Matias
title Detecting primordial
title_short Detecting primordial
title_full Detecting primordial
title_fullStr Detecting primordial
title_full_unstemmed Detecting primordial
title_sort detecting primordial
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14757516_v2015_n11_p_Creminelli
http://hdl.handle.net/20.500.12110/paper_14757516_v2015_n11_p_Creminelli
work_keys_str_mv AT zaldarriagamatias detectingprimordial
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