Measuring CMB Spectral Distortions from Antarctica with COSMO: Blackbody Calibrator Design and Performance Forecast

L. Mele; E. S. Battistelli; P. de Bernardis; M. Bersanelli; F. Columbro; G. Coppi; A. Coppolecchia; G. D’Alessandro; M. De Petris; C. Franceschet; M. Gervasi; L. Lamagna; A. Limonta; E. Manzan; E. Marchitelli; S. Masi; A. Mennella; F. Nati; A. Paiella; G. Pettinari; F. Piacentini; L. Piccirillo; G. Pisano; S. Realini; C. Tucker; M. Zannoni

doi:10.1007/s10909-022-02874-x

Measuring CMB Spectral Distortions from Antarctica with COSMO: Blackbody Calibrator Design and Performance Forecast

L. Mele^*, E. S. Battistelli, P. de Bernardis, M. Bersanelli, F. Columbro, G. Coppi, A. Coppolecchia, G. D’Alessandro, M. De Petris, C. Franceschet, M. Gervasi, L. Lamagna, A. Limonta, E. Manzan, E. Marchitelli, S. Masi, A. Mennella, F. Nati, A. Paiella, G. PettinariF. Piacentini, L. Piccirillo, G. Pisano, S. Realini, C. Tucker, M. Zannoni

^*Corresponding author for this work

Astronomy and Astrophysics Theory Group

Research output: Contribution to journal › Article › peer-review

Abstract

COSMO is a ground-based instrument to measure the spectral distortions (SD) of the Cosmic Microwave Background (CMB). In this paper, we present preliminary results of electromagnetic simulations of its reference blackbody calibrator. HFSS simulations provide a calibrator reflection coefficient of R∼ 10 ^{- 6}, corresponding to an emissivity ϵ= 1 - R= 0.999999. We also provide a forecast for the instrument performance by using an ILC-based simulation. We show that COSMO can extract the isotropic Comptonization parameter (modeled as | y| = 1.77 · 10 ^{- 6}) as | y| = (1.79 ± 0.19) · 10 ^{- 6}, in the presence of the main Galactic foreground (thermal dust) and of CMB anisotropies, and assuming perfect atmospheric emission removal.

Original language	English
Pages (from-to)	912-918
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	209
Issue number	5-6
Early online date	26 Sept 2022
DOIs	https://doi.org/10.1007/s10909-022-02874-x
Publication status	Published - Dec 2022

Keywords

blackbody
cosmology
spectral distortions

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10.1007/s10909-022-02874-x

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Mele, L., Battistelli, E. S., de Bernardis, P., Bersanelli, M., Columbro, F., Coppi, G., Coppolecchia, A., D’Alessandro, G., De Petris, M., Franceschet, C., Gervasi, M., Lamagna, L., Limonta, A., Manzan, E., Marchitelli, E., Masi, S., Mennella, A., Nati, F., Paiella, A., ... Zannoni, M. (2022). Measuring CMB Spectral Distortions from Antarctica with COSMO: Blackbody Calibrator Design and Performance Forecast. Journal of Low Temperature Physics, 209(5-6), 912-918. https://doi.org/10.1007/s10909-022-02874-x

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title = "Measuring CMB Spectral Distortions from Antarctica with COSMO: Blackbody Calibrator Design and Performance Forecast",

abstract = "COSMO is a ground-based instrument to measure the spectral distortions (SD) of the Cosmic Microwave Background (CMB). In this paper, we present preliminary results of electromagnetic simulations of its reference blackbody calibrator. HFSS simulations provide a calibrator reflection coefficient of R∼ 10 - 6, corresponding to an emissivity ϵ= 1 - R= 0.999999. We also provide a forecast for the instrument performance by using an ILC-based simulation. We show that COSMO can extract the isotropic Comptonization parameter (modeled as | y| = 1.77 · 10 - 6) as | y| = (1.79 ± 0.19) · 10 - 6, in the presence of the main Galactic foreground (thermal dust) and of CMB anisotropies, and assuming perfect atmospheric emission removal.",

keywords = "blackbody, cosmology, spectral distortions",

author = "L. Mele and Battistelli, {E. S.} and {de Bernardis}, P. and M. Bersanelli and F. Columbro and G. Coppi and A. Coppolecchia and G. D{\textquoteright}Alessandro and {De Petris}, M. and C. Franceschet and M. Gervasi and L. Lamagna and A. Limonta and E. Manzan and E. Marchitelli and S. Masi and A. Mennella and F. Nati and A. Paiella and G. Pettinari and F. Piacentini and L. Piccirillo and G. Pisano and S. Realini and C. Tucker and M. Zannoni",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = dec,

doi = "10.1007/s10909-022-02874-x",

language = "English",

volume = "209",

pages = "912--918",

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Mele, L, Battistelli, ES, de Bernardis, P, Bersanelli, M, Columbro, F, Coppi, G, Coppolecchia, A, D’Alessandro, G, De Petris, M, Franceschet, C, Gervasi, M, Lamagna, L, Limonta, A, Manzan, E, Marchitelli, E, Masi, S, Mennella, A, Nati, F, Paiella, A, Pettinari, G, Piacentini, F, Piccirillo, L, Pisano, G, Realini, S, Tucker, C & Zannoni, M 2022, 'Measuring CMB Spectral Distortions from Antarctica with COSMO: Blackbody Calibrator Design and Performance Forecast', Journal of Low Temperature Physics, vol. 209, no. 5-6, pp. 912-918. https://doi.org/10.1007/s10909-022-02874-x

TY - JOUR

T1 - Measuring CMB Spectral Distortions from Antarctica with COSMO

T2 - Blackbody Calibrator Design and Performance Forecast

AU - Mele, L.

AU - Battistelli, E. S.

AU - de Bernardis, P.

AU - Bersanelli, M.

AU - Columbro, F.

AU - Coppi, G.

AU - Coppolecchia, A.

AU - D’Alessandro, G.

AU - De Petris, M.

AU - Franceschet, C.

AU - Gervasi, M.

AU - Lamagna, L.

AU - Limonta, A.

AU - Manzan, E.

AU - Marchitelli, E.

AU - Masi, S.

AU - Mennella, A.

AU - Nati, F.

AU - Paiella, A.

AU - Pettinari, G.

AU - Piacentini, F.

AU - Piccirillo, L.

AU - Pisano, G.

AU - Realini, S.

AU - Tucker, C.

AU - Zannoni, M.

PY - 2022/12

Y1 - 2022/12

N2 - COSMO is a ground-based instrument to measure the spectral distortions (SD) of the Cosmic Microwave Background (CMB). In this paper, we present preliminary results of electromagnetic simulations of its reference blackbody calibrator. HFSS simulations provide a calibrator reflection coefficient of R∼ 10 - 6, corresponding to an emissivity ϵ= 1 - R= 0.999999. We also provide a forecast for the instrument performance by using an ILC-based simulation. We show that COSMO can extract the isotropic Comptonization parameter (modeled as | y| = 1.77 · 10 - 6) as | y| = (1.79 ± 0.19) · 10 - 6, in the presence of the main Galactic foreground (thermal dust) and of CMB anisotropies, and assuming perfect atmospheric emission removal.

AB - COSMO is a ground-based instrument to measure the spectral distortions (SD) of the Cosmic Microwave Background (CMB). In this paper, we present preliminary results of electromagnetic simulations of its reference blackbody calibrator. HFSS simulations provide a calibrator reflection coefficient of R∼ 10 - 6, corresponding to an emissivity ϵ= 1 - R= 0.999999. We also provide a forecast for the instrument performance by using an ILC-based simulation. We show that COSMO can extract the isotropic Comptonization parameter (modeled as | y| = 1.77 · 10 - 6) as | y| = (1.79 ± 0.19) · 10 - 6, in the presence of the main Galactic foreground (thermal dust) and of CMB anisotropies, and assuming perfect atmospheric emission removal.

KW - blackbody

KW - cosmology

KW - spectral distortions

UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_starter&SrcAuth=WosAPI&KeyUT=WOS:000859693600004&DestLinkType=FullRecord&DestApp=WOS

U2 - 10.1007/s10909-022-02874-x

DO - 10.1007/s10909-022-02874-x

M3 - Article

AN - SCOPUS:85138768859

SN - 0022-2291

VL - 209

SP - 912

EP - 918

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 5-6

ER -

Measuring CMB Spectral Distortions from Antarctica with COSMO: Blackbody Calibrator Design and Performance Forecast

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