Baryon Pasting the Uchuu Light-cone Simulation
We present the Baryon Pasted (BP) X-ray and thermal Sunyaev–Zel’dovich (tSZ) maps derived from the half-sky Uchuu light-cone simulation. These BP-Uchuu maps are constructed using more than 75 million dark matter halos with masses M _500 _c ≥ 10 ^13 M _⊙ within the redshift range 0 ≤ z ≤ 2. A distinc...
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2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ada940 |
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| author | Erwin T. Lau Daisuke Nagai Arya Farahi Tomoaki Ishiyama Hironao Miyatake Ken Osato Masato Shirasaki |
| author_facet | Erwin T. Lau Daisuke Nagai Arya Farahi Tomoaki Ishiyama Hironao Miyatake Ken Osato Masato Shirasaki |
| author_sort | Erwin T. Lau |
| collection | DOAJ |
| description | We present the Baryon Pasted (BP) X-ray and thermal Sunyaev–Zel’dovich (tSZ) maps derived from the half-sky Uchuu light-cone simulation. These BP-Uchuu maps are constructed using more than 75 million dark matter halos with masses M _500 _c ≥ 10 ^13 M _⊙ within the redshift range 0 ≤ z ≤ 2. A distinctive feature of our BP-Uchuu light-cone maps is their capability to assess the influence of both extrinsic and intrinsic scatter caused by triaxial gaseous halos and internal gas characteristics, respectively, at the map level. We show that triaxial gas drives substantial scatter in X-ray luminosities of clusters and groups, accounting for nearly half of the total scatter in core-excised measurements. Additionally, scatter in the thermal pressure and gas density profiles of halos enhances the X-ray and SZ power spectra, leading to biases in cosmological parameter estimates. These findings are statistically robust due to the extensive sky coverage and large halo sample in the BP-Uchuu maps. The BP-Uchuu maps are publicly available online via Globus ( https://app.globus.org/file-manager?origin_id=cf8dadb7-b6e9-4e2c-abc1-0813877efc13 ). |
| format | Article |
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| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| spelling | doaj-art-e053f9c245654c7ab7d60ced6f4c5e802025-02-07T13:47:05ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01980112210.3847/1538-4357/ada940Baryon Pasting the Uchuu Light-cone SimulationErwin T. Lau0https://orcid.org/0000-0001-8914-8885Daisuke Nagai1https://orcid.org/0000-0002-6766-5942Arya Farahi2https://orcid.org/0000-0003-0777-4618Tomoaki Ishiyama3https://orcid.org/0000-0002-5316-9171Hironao Miyatake4https://orcid.org/0000-0001-7964-9766Ken Osato5https://orcid.org/0000-0002-7934-2569Masato Shirasaki6https://orcid.org/0000-0002-1706-5797Center for Astrophysics ∣ Harvard & Smithsonian , Cambridge, MA 02138, USA ; erwin.lau@cfa.harvard.eduDepartment of Physics, Yale University , New Haven, CT 06520, USADepartment of Statistics and Data Sciences, University of Texas at Austin , Austin, TX 78712, USA; The NSF-Simons AI Institute for Cosmic Origins, University of Texas at Austin , Austin, TX 78712, USADigital Transformation Enhancement Council, Chiba University , Chiba 263-8522, JapanKobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University , Nagoya 464-8602, Japan; Institute for Advanced Research, Nagoya University , Nagoya 464-8601, Japan; Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo , Kashiwa, Chiba 277-8583, Japan; The University of Tokyo Institutes for Advanced Study (UTIAS), The University of Tokyo , Chiba 277-8583, JapanKavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo , Kashiwa, Chiba 277-8583, Japan; Center for Frontier Science, Chiba University , Chiba 263-8522, Japan; Department of Physics, Graduate School of Science, Chiba University , Chiba 263-8522, JapanNational Astronomical Observatory of Japan (NAOJ), National Institutes of Natural Science , Mitaka, Tokyo 181-8588, Japan; The Institute of Statistical Mathematics , Tachikawa, Tokyo 190-8562, JapanWe present the Baryon Pasted (BP) X-ray and thermal Sunyaev–Zel’dovich (tSZ) maps derived from the half-sky Uchuu light-cone simulation. These BP-Uchuu maps are constructed using more than 75 million dark matter halos with masses M _500 _c ≥ 10 ^13 M _⊙ within the redshift range 0 ≤ z ≤ 2. A distinctive feature of our BP-Uchuu light-cone maps is their capability to assess the influence of both extrinsic and intrinsic scatter caused by triaxial gaseous halos and internal gas characteristics, respectively, at the map level. We show that triaxial gas drives substantial scatter in X-ray luminosities of clusters and groups, accounting for nearly half of the total scatter in core-excised measurements. Additionally, scatter in the thermal pressure and gas density profiles of halos enhances the X-ray and SZ power spectra, leading to biases in cosmological parameter estimates. These findings are statistically robust due to the extensive sky coverage and large halo sample in the BP-Uchuu maps. The BP-Uchuu maps are publicly available online via Globus ( https://app.globus.org/file-manager?origin_id=cf8dadb7-b6e9-4e2c-abc1-0813877efc13 ).https://doi.org/10.3847/1538-4357/ada940Large-scale structure of the universeGalaxy clustersIntracluster medium-body simulations |
| spellingShingle | Erwin T. Lau Daisuke Nagai Arya Farahi Tomoaki Ishiyama Hironao Miyatake Ken Osato Masato Shirasaki Baryon Pasting the Uchuu Light-cone Simulation The Astrophysical Journal Large-scale structure of the universe Galaxy clusters Intracluster medium -body simulations |
| title | Baryon Pasting the Uchuu Light-cone Simulation |
| title_full | Baryon Pasting the Uchuu Light-cone Simulation |
| title_fullStr | Baryon Pasting the Uchuu Light-cone Simulation |
| title_full_unstemmed | Baryon Pasting the Uchuu Light-cone Simulation |
| title_short | Baryon Pasting the Uchuu Light-cone Simulation |
| title_sort | baryon pasting the uchuu light cone simulation |
| topic | Large-scale structure of the universe Galaxy clusters Intracluster medium -body simulations |
| url | https://doi.org/10.3847/1538-4357/ada940 |
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