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CMB lensing and Lyα forest cross bispectrum from DESI's first-year quasar sample

Fuente: arXiv
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Main Authors: Karaçaylı, N. G., Martini, P., Weinberg, D. H., Ferraro, S., de Belsunce, R., Aguilar, J., Ahlen, S., Armengaud, E., Brooks, D., Claybaugh, T., de la Macorra, A., Dey, B., Doel, P., Fanning, K., Forero-Romero, J. E., Gontcho, S. Gontcho A, Gonzalez-Morales, A. X., Gutierrez, G., Guy, J., Honscheid, K., Kirkby, D., Kisner, T., Kremin, A., Lambert, A., Landriau, M., Guillou, L. Le, Levi, M. E., Manera, M., Meisner, A., Miquel, R., Mueller, E., Muñoz-Gutiérrez, A., Myers, A. D., Newman, J. A., Nie, J., Niz, G., Palanque-Delabrouille, N., Percival, W. J., Poppett, C., Prada, F., Ravoux, C., Rezaie, M., Ross, A. J., Rossi, G., Sanchez, E., Schlafly, E. F., Schlegel, D., Seo, H., Sprayberry, D., Tan, T., Tarlé, G., Weaver, B. A., Zou, H.
Format: Preprint
Published: 2024
Subjects:
Cosmology and Nongalactic Astrophysics
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author Karaçaylı, N. G.
Martini, P.
Weinberg, D. H.
Ferraro, S.
de Belsunce, R.
Aguilar, J.
Ahlen, S.
Armengaud, E.
Brooks, D.
Claybaugh, T.
de la Macorra, A.
Dey, B.
Doel, P.
Fanning, K.
Forero-Romero, J. E.
Gontcho, S. Gontcho A
Gonzalez-Morales, A. X.
Gutierrez, G.
Guy, J.
Honscheid, K.
Kirkby, D.
Kisner, T.
Kremin, A.
Lambert, A.
Landriau, M.
Guillou, L. Le
Levi, M. E.
Manera, M.
Meisner, A.
Miquel, R.
Mueller, E.
Muñoz-Gutiérrez, A.
Myers, A. D.
Newman, J. A.
Nie, J.
Niz, G.
Palanque-Delabrouille, N.
Percival, W. J.
Poppett, C.
Prada, F.
Ravoux, C.
Rezaie, M.
Ross, A. J.
Rossi, G.
Sanchez, E.
Schlafly, E. F.
Schlegel, D.
Seo, H.
Sprayberry, D.
Tan, T.
Tarlé, G.
Weaver, B. A.
Zou, H.
author_facet Karaçaylı, N. G.
Martini, P.
Weinberg, D. H.
Ferraro, S.
de Belsunce, R.
Aguilar, J.
Ahlen, S.
Armengaud, E.
Brooks, D.
Claybaugh, T.
de la Macorra, A.
Dey, B.
Doel, P.
Fanning, K.
Forero-Romero, J. E.
Gontcho, S. Gontcho A
Gonzalez-Morales, A. X.
Gutierrez, G.
Guy, J.
Honscheid, K.
Kirkby, D.
Kisner, T.
Kremin, A.
Lambert, A.
Landriau, M.
Guillou, L. Le
Levi, M. E.
Manera, M.
Meisner, A.
Miquel, R.
Mueller, E.
Muñoz-Gutiérrez, A.
Myers, A. D.
Newman, J. A.
Nie, J.
Niz, G.
Palanque-Delabrouille, N.
Percival, W. J.
Poppett, C.
Prada, F.
Ravoux, C.
Rezaie, M.
Ross, A. J.
Rossi, G.
Sanchez, E.
Schlafly, E. F.
Schlegel, D.
Seo, H.
Sprayberry, D.
Tan, T.
Tarlé, G.
Weaver, B. A.
Zou, H.
contents The squeezed cross-bispectrum \bispeconed\ between the gravitational lensing in the Cosmic Microwave Background and the 1D \lya\ forest power spectrum can constrain bias parameters and break degeneracies between $σ_8$ and other cosmological parameters. We detect \bispeconed\ with $4.8σ$ significance at an effective redshift $z_\mathrm{eff}=2.4$ using Planck PR3 lensing map and over 280,000 quasar spectra from the Dark Energy Spectroscopic Instrument's first-year data. We test our measurement against metal contamination and foregrounds such as Galactic extinction and clusters of galaxies by deprojecting the thermal Sunyaev-Zeldovich effect. We compare our results to a tree-level perturbation theory calculation and find reasonable agreement between the model and measurement.
format Preprint
id arxiv_https___arxiv_org_abs_2405_14988
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle CMB lensing and Lyα forest cross bispectrum from DESI's first-year quasar sample
Karaçaylı, N. G.
Martini, P.
Weinberg, D. H.
Ferraro, S.
de Belsunce, R.
Aguilar, J.
Ahlen, S.
Armengaud, E.
Brooks, D.
Claybaugh, T.
de la Macorra, A.
Dey, B.
Doel, P.
Fanning, K.
Forero-Romero, J. E.
Gontcho, S. Gontcho A
Gonzalez-Morales, A. X.
Gutierrez, G.
Guy, J.
Honscheid, K.
Kirkby, D.
Kisner, T.
Kremin, A.
Lambert, A.
Landriau, M.
Guillou, L. Le
Levi, M. E.
Manera, M.
Meisner, A.
Miquel, R.
Mueller, E.
Muñoz-Gutiérrez, A.
Myers, A. D.
Newman, J. A.
Nie, J.
Niz, G.
Palanque-Delabrouille, N.
Percival, W. J.
Poppett, C.
Prada, F.
Ravoux, C.
Rezaie, M.
Ross, A. J.
Rossi, G.
Sanchez, E.
Schlafly, E. F.
Schlegel, D.
Seo, H.
Sprayberry, D.
Tan, T.
Tarlé, G.
Weaver, B. A.
Zou, H.
Cosmology and Nongalactic Astrophysics
The squeezed cross-bispectrum \bispeconed\ between the gravitational lensing in the Cosmic Microwave Background and the 1D \lya\ forest power spectrum can constrain bias parameters and break degeneracies between $σ_8$ and other cosmological parameters. We detect \bispeconed\ with $4.8σ$ significance at an effective redshift $z_\mathrm{eff}=2.4$ using Planck PR3 lensing map and over 280,000 quasar spectra from the Dark Energy Spectroscopic Instrument's first-year data. We test our measurement against metal contamination and foregrounds such as Galactic extinction and clusters of galaxies by deprojecting the thermal Sunyaev-Zeldovich effect. We compare our results to a tree-level perturbation theory calculation and find reasonable agreement between the model and measurement.
title CMB lensing and Lyα forest cross bispectrum from DESI's first-year quasar sample
topic Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2405.14988

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