Buchumschlag

Requirements on bandpass resolution and measurement precision for LiteBIRD

Fuente: arXiv
Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Giardiello, S., Carones, A., Ghigna, T., Pagano, L., Piacentini, F., Montier, L., Takaku, R., Calabrese, E., Adak, D., Allys, E., Anand, A., Aumont, J., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Bersanelli, M., Besnard, A., Bortolami, M., Brinckmann, T., Casas, F. J., Cheung, K., Citran, M., Clermont, L., Columbro, F., Coppolecchia, A., Cuttaia, F., de Bernardis, P., de la Hoz, E., De Lucia, M., Della Torre, S., Di Giorgi, E., Diego-Palazuelos, P., Fuskeland, U., Galloni, G., Galloway, M., Gerbino, M., Gervasi, M., Génova-Santos, R. T., Gimeno-Amo, C., Gruppuso, A., Hazumi, M., Henrot-Versillé, S., Hergt, L. T., Jost, B., Kohri, K., Lamagna, L., Leloup, C., Levrier, F., Lonappan, A. I., López-Caniego, M., Luzzi, G., Macias-Perez, J., Maranchery, V., Martínez-González, E., Masi, S., Matarrese, S., Matsumura, T., Micheli, S., Migliaccio, M., Monelli, M., Morgante, G., Mousset, L., Nagata, R., Novelli, A., Noviello, F., Obata, I., Occhiuzzi, A., Paiella, A., Paoletti, D., Pascual-Cisneros, G., Patanchon, G., Pinchera, M., Polenta, G., Porcelli, L., Puglisi, G., Raffuzzi, N., Remazeilles, M., Rizzieri, A., Ruiz-Granda, M., Sanghavi, J., Sauvage, V., Savini, G., Shiraishi, M., Signorelli, G., Sullivan, R. M., Takase, Y., Terenzi, L., Tomasi, M., Tristram, M., Vacher, L., van Tent, B., Vielva, P., Wehus, I. K., Weymann-Despres, G., Wollack, E. J., Zhou, Y.
Format: Preprint
Veröffentlicht: 2025
Schlagworte:
Cosmology and Nongalactic Astrophysics
Instrumentation and Methods for Astrophysics
Online-Zugang:
Acceder al recurso
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
_version_ 1866915539380600832
author Giardiello, S.
Carones, A.
Ghigna, T.
Pagano, L.
Piacentini, F.
Montier, L.
Takaku, R.
Calabrese, E.
Adak, D.
Allys, E.
Anand, A.
Aumont, J.
Ballardini, M.
Banday, A. J.
Barreiro, R. B.
Bartolo, N.
Basak, S.
Bersanelli, M.
Besnard, A.
Bortolami, M.
Brinckmann, T.
Casas, F. J.
Cheung, K.
Citran, M.
Clermont, L.
Columbro, F.
Coppolecchia, A.
Cuttaia, F.
de Bernardis, P.
de la Hoz, E.
De Lucia, M.
Della Torre, S.
Di Giorgi, E.
Diego-Palazuelos, P.
Fuskeland, U.
Galloni, G.
Galloway, M.
Gerbino, M.
Gervasi, M.
Génova-Santos, R. T.
Gimeno-Amo, C.
Gruppuso, A.
Hazumi, M.
Henrot-Versillé, S.
Hergt, L. T.
Jost, B.
Kohri, K.
Lamagna, L.
Leloup, C.
Levrier, F.
Lonappan, A. I.
López-Caniego, M.
Luzzi, G.
Macias-Perez, J.
Maranchery, V.
Martínez-González, E.
Masi, S.
Matarrese, S.
Matsumura, T.
Micheli, S.
Migliaccio, M.
Monelli, M.
Morgante, G.
Mousset, L.
Nagata, R.
Novelli, A.
Noviello, F.
Obata, I.
Occhiuzzi, A.
Paiella, A.
Paoletti, D.
Pascual-Cisneros, G.
Patanchon, G.
Pinchera, M.
Polenta, G.
Porcelli, L.
Puglisi, G.
Raffuzzi, N.
Remazeilles, M.
Rizzieri, A.
Ruiz-Granda, M.
Sanghavi, J.
Sauvage, V.
Savini, G.
Shiraishi, M.
Signorelli, G.
Sullivan, R. M.
Takase, Y.
Terenzi, L.
Tomasi, M.
Tristram, M.
Vacher, L.
van Tent, B.
Vielva, P.
Wehus, I. K.
Weymann-Despres, G.
Wollack, E. J.
Zhou, Y.
author_facet Giardiello, S.
Carones, A.
Ghigna, T.
Pagano, L.
Piacentini, F.
Montier, L.
Takaku, R.
Calabrese, E.
Adak, D.
Allys, E.
Anand, A.
Aumont, J.
Ballardini, M.
Banday, A. J.
Barreiro, R. B.
Bartolo, N.
Basak, S.
Bersanelli, M.
Besnard, A.
Bortolami, M.
Brinckmann, T.
Casas, F. J.
Cheung, K.
Citran, M.
Clermont, L.
Columbro, F.
Coppolecchia, A.
Cuttaia, F.
de Bernardis, P.
de la Hoz, E.
De Lucia, M.
Della Torre, S.
Di Giorgi, E.
Diego-Palazuelos, P.
Fuskeland, U.
Galloni, G.
Galloway, M.
Gerbino, M.
Gervasi, M.
Génova-Santos, R. T.
Gimeno-Amo, C.
Gruppuso, A.
Hazumi, M.
Henrot-Versillé, S.
Hergt, L. T.
Jost, B.
Kohri, K.
Lamagna, L.
Leloup, C.
Levrier, F.
Lonappan, A. I.
López-Caniego, M.
Luzzi, G.
Macias-Perez, J.
Maranchery, V.
Martínez-González, E.
Masi, S.
Matarrese, S.
Matsumura, T.
Micheli, S.
Migliaccio, M.
Monelli, M.
Morgante, G.
Mousset, L.
Nagata, R.
Novelli, A.
Noviello, F.
Obata, I.
Occhiuzzi, A.
Paiella, A.
Paoletti, D.
Pascual-Cisneros, G.
Patanchon, G.
Pinchera, M.
Polenta, G.
Porcelli, L.
Puglisi, G.
Raffuzzi, N.
Remazeilles, M.
Rizzieri, A.
Ruiz-Granda, M.
Sanghavi, J.
Sauvage, V.
Savini, G.
Shiraishi, M.
Signorelli, G.
Sullivan, R. M.
Takase, Y.
Terenzi, L.
Tomasi, M.
Tristram, M.
Vacher, L.
van Tent, B.
Vielva, P.
Wehus, I. K.
Weymann-Despres, G.
Wollack, E. J.
Zhou, Y.
contents In this work, we study the impact of an imperfect knowledge of the instrument bandpasses on the estimate of the tensor-to-scalar ratio $r$ in the context of the next-generation LiteBIRD satellite. We develop a pipeline to integrate over the bandpass transmission in both the time-ordered data (TOD) and the map-making processing steps. We introduce the systematic effect by having a mismatch between the ``real'', high resolution bandpass $τ$, entering the TOD, and the estimated one $τ_s$, used in the map-making. We focus on two aspects: the effect of degrading the $τ_s$ resolution, and the addition of a Gaussian error $σ$ to $τ_s$. To reduce the computational load of the analysis, the two effects are explored separately, for three representative LiteBIRD channels (40 GHz, 140 GHz and 402 GHz) and for three bandpass shapes. Computing the amount of bias on $r$, $Δr$, caused by these effects on a single channel, we find that a resolution $\lesssim 1.5$ GHz and $σ\lesssim 0.0089$ do not exceed the LiteBIRD budget allocation per systematic effect, $Δr < 6.5 \times 10^{-6}$. We then check that propagating separately the uncertainties due to a resolution of 1 GHz and a measurement error with $σ= 0.0089$ in all LiteBIRD frequency channels, for the most pessimistic bandpass shape of the three considered, still produces a $Δr < 6.5 \times 10^{-6}$. This is done both with the simple deprojection approach and with a blind component separation technique, the Needlet Internal Linear Combination (NILC). Due to the effectiveness of NILC in cleaning the systematic residuals, we have tested that the requirement on $σ$ can be relaxed to $σ\lesssim 0.05$. (Abridged)
format Preprint
id arxiv_https___arxiv_org_abs_2506_22217
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Requirements on bandpass resolution and measurement precision for LiteBIRD
Giardiello, S.
Carones, A.
Ghigna, T.
Pagano, L.
Piacentini, F.
Montier, L.
Takaku, R.
Calabrese, E.
Adak, D.
Allys, E.
Anand, A.
Aumont, J.
Ballardini, M.
Banday, A. J.
Barreiro, R. B.
Bartolo, N.
Basak, S.
Bersanelli, M.
Besnard, A.
Bortolami, M.
Brinckmann, T.
Casas, F. J.
Cheung, K.
Citran, M.
Clermont, L.
Columbro, F.
Coppolecchia, A.
Cuttaia, F.
de Bernardis, P.
de la Hoz, E.
De Lucia, M.
Della Torre, S.
Di Giorgi, E.
Diego-Palazuelos, P.
Fuskeland, U.
Galloni, G.
Galloway, M.
Gerbino, M.
Gervasi, M.
Génova-Santos, R. T.
Gimeno-Amo, C.
Gruppuso, A.
Hazumi, M.
Henrot-Versillé, S.
Hergt, L. T.
Jost, B.
Kohri, K.
Lamagna, L.
Leloup, C.
Levrier, F.
Lonappan, A. I.
López-Caniego, M.
Luzzi, G.
Macias-Perez, J.
Maranchery, V.
Martínez-González, E.
Masi, S.
Matarrese, S.
Matsumura, T.
Micheli, S.
Migliaccio, M.
Monelli, M.
Morgante, G.
Mousset, L.
Nagata, R.
Novelli, A.
Noviello, F.
Obata, I.
Occhiuzzi, A.
Paiella, A.
Paoletti, D.
Pascual-Cisneros, G.
Patanchon, G.
Pinchera, M.
Polenta, G.
Porcelli, L.
Puglisi, G.
Raffuzzi, N.
Remazeilles, M.
Rizzieri, A.
Ruiz-Granda, M.
Sanghavi, J.
Sauvage, V.
Savini, G.
Shiraishi, M.
Signorelli, G.
Sullivan, R. M.
Takase, Y.
Terenzi, L.
Tomasi, M.
Tristram, M.
Vacher, L.
van Tent, B.
Vielva, P.
Wehus, I. K.
Weymann-Despres, G.
Wollack, E. J.
Zhou, Y.
Cosmology and Nongalactic Astrophysics
Instrumentation and Methods for Astrophysics
In this work, we study the impact of an imperfect knowledge of the instrument bandpasses on the estimate of the tensor-to-scalar ratio $r$ in the context of the next-generation LiteBIRD satellite. We develop a pipeline to integrate over the bandpass transmission in both the time-ordered data (TOD) and the map-making processing steps. We introduce the systematic effect by having a mismatch between the ``real'', high resolution bandpass $τ$, entering the TOD, and the estimated one $τ_s$, used in the map-making. We focus on two aspects: the effect of degrading the $τ_s$ resolution, and the addition of a Gaussian error $σ$ to $τ_s$. To reduce the computational load of the analysis, the two effects are explored separately, for three representative LiteBIRD channels (40 GHz, 140 GHz and 402 GHz) and for three bandpass shapes. Computing the amount of bias on $r$, $Δr$, caused by these effects on a single channel, we find that a resolution $\lesssim 1.5$ GHz and $σ\lesssim 0.0089$ do not exceed the LiteBIRD budget allocation per systematic effect, $Δr < 6.5 \times 10^{-6}$. We then check that propagating separately the uncertainties due to a resolution of 1 GHz and a measurement error with $σ= 0.0089$ in all LiteBIRD frequency channels, for the most pessimistic bandpass shape of the three considered, still produces a $Δr < 6.5 \times 10^{-6}$. This is done both with the simple deprojection approach and with a blind component separation technique, the Needlet Internal Linear Combination (NILC). Due to the effectiveness of NILC in cleaning the systematic residuals, we have tested that the requirement on $σ$ can be relaxed to $σ\lesssim 0.05$. (Abridged)
title Requirements on bandpass resolution and measurement precision for LiteBIRD
topic Cosmology and Nongalactic Astrophysics
Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2506.22217

Ähnliche Einträge