Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy–Galaxy and Galaxy–Mass Power Spectra
Abstract
We present cosmological parameter measurements from the Deep Lens Survey (DLS) using galaxy–mass and galaxy–galaxy power spectra in the multipole range ℓ = 250–2000. We measure galaxy–galaxy power spectra from two lens bins centered at z ~ 0.27 and 0.54 and galaxy–mass power spectra by cross-correlating the positions of galaxies in these two lens bins with galaxy shapes in two source bins centered at z ~ 0.64 and 1.1. We marginalize over a baryonic feedback process using a single-parameter representation and a sum of neutrino masses, as well as photometric redshift and shear calibration systematic uncertainties. For a flat ΛCDM cosmology, we determine $${S}_{8}\equiv {\sigma }_{8}\sqrt{{{\rm{\Omega }}}_{m}/0.3}={0.810}_{-0.031}^{+0.039}$$, in good agreement with our previous DLS cosmic shear and the Planck cosmic microwave background (CMB) measurements. Without the baryonic feedback marginalization, S 8 decreases by $$\sim 0.05$$ because the dark-matter-only power spectrum lacks the suppression at the highest ℓ values owing to active galactic nucleus (AGN) feedback. Together with the Planck CMB measurements, we constrain the baryonic feedback parameter to $${A}_{\mathrm{baryon}}={1.07}_{-0.39}^{+0.31}$$, which suggests an interesting possibility that the actual AGN feedback might be stronger than the recipe used in the OverWhelmingly Large cosmological hydrodynamical Simulations. The interpretation is limited by the validity of the baryonic feedback simulation and the one-parameter representation of the effect.
- Authors:
-
- Yonsei Univ., Seoul (Korea)
- Yonsei Univ., Seoul (Korea); Univ. of California, Davis, CA (United States)
- Univ. of California, Davis, CA (United States)
- The Ohio State Univ., Columbus, OH (United States)
- Publication Date:
- Research Org.:
- Univ. of California, Davis, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1595411
- Grant/Contract Number:
- SC0009999; 2017R1A2B2004644; 2017R1A4A1015178; N56981C
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 870; Journal Issue: 2; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; cosmological parameters; cosmology; observations; dark matter; gravitational lensing; weak; large-scale structure of universe
Citation Formats
Yoon, Mijin, Jee, M. James, Tyson, J. Anthony, Schmidt, Samuel, Wittman, David, and Choi, Ami. Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy–Galaxy and Galaxy–Mass Power Spectra. United States: N. p., 2019.
Web. doi:10.3847/1538-4357/aaf3a9.
Yoon, Mijin, Jee, M. James, Tyson, J. Anthony, Schmidt, Samuel, Wittman, David, & Choi, Ami. Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy–Galaxy and Galaxy–Mass Power Spectra. United States. https://doi.org/10.3847/1538-4357/aaf3a9
Yoon, Mijin, Jee, M. James, Tyson, J. Anthony, Schmidt, Samuel, Wittman, David, and Choi, Ami. Thu .
"Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy–Galaxy and Galaxy–Mass Power Spectra". United States. https://doi.org/10.3847/1538-4357/aaf3a9. https://www.osti.gov/servlets/purl/1595411.
@article{osti_1595411,
title = {Constraints on Cosmology and Baryonic Feedback with the Deep Lens Survey Using Galaxy–Galaxy and Galaxy–Mass Power Spectra},
author = {Yoon, Mijin and Jee, M. James and Tyson, J. Anthony and Schmidt, Samuel and Wittman, David and Choi, Ami},
abstractNote = {We present cosmological parameter measurements from the Deep Lens Survey (DLS) using galaxy–mass and galaxy–galaxy power spectra in the multipole range ℓ = 250–2000. We measure galaxy–galaxy power spectra from two lens bins centered at z ~ 0.27 and 0.54 and galaxy–mass power spectra by cross-correlating the positions of galaxies in these two lens bins with galaxy shapes in two source bins centered at z ~ 0.64 and 1.1. We marginalize over a baryonic feedback process using a single-parameter representation and a sum of neutrino masses, as well as photometric redshift and shear calibration systematic uncertainties. For a flat ΛCDM cosmology, we determine ${S}_{8}\equiv {\sigma }_{8}\sqrt{{{\rm{\Omega }}}_{m}/0.3}={0.810}_{-0.031}^{+0.039}$, in good agreement with our previous DLS cosmic shear and the Planck cosmic microwave background (CMB) measurements. Without the baryonic feedback marginalization, S 8 decreases by $\sim 0.05$ because the dark-matter-only power spectrum lacks the suppression at the highest ℓ values owing to active galactic nucleus (AGN) feedback. Together with the Planck CMB measurements, we constrain the baryonic feedback parameter to ${A}_{\mathrm{baryon}}={1.07}_{-0.39}^{+0.31}$, which suggests an interesting possibility that the actual AGN feedback might be stronger than the recipe used in the OverWhelmingly Large cosmological hydrodynamical Simulations. The interpretation is limited by the validity of the baryonic feedback simulation and the one-parameter representation of the effect.},
doi = {10.3847/1538-4357/aaf3a9},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 870,
place = {United States},
year = {Thu Jan 10 00:00:00 EST 2019},
month = {Thu Jan 10 00:00:00 EST 2019}
}
Web of Science
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Statistical Inconsistencies in the KiDS-450 Dataset
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Stable clustering, the halo model and nonlinear cosmological power spectra
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Exploring the effects of galaxy formation on matter clustering through a library of simulation power spectra
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