The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙
We have combined X-ray observations from Chandra with Sunyaev–Zel’dovich effect data from Planck and Bolocam to measure intracluster medium pressure profiles from 0.03 R _500 ≤ R ≤ 5 R _500 for a sample of 21 low- z galaxy clusters with a median redshift of 〈 z 〉 = 0.08 and a median mass of 〈 M _500...
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| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acb33d |
| _version_ | 1797695789101744128 |
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| author | Jack Sayers Adam B. Mantz Elena Rasia Steven W. Allen Weiguang Cui Sunil R. Golwala R. Glenn Morris Jenny T. Wan |
| author_facet | Jack Sayers Adam B. Mantz Elena Rasia Steven W. Allen Weiguang Cui Sunil R. Golwala R. Glenn Morris Jenny T. Wan |
| author_sort | Jack Sayers |
| collection | DOAJ |
| description | We have combined X-ray observations from Chandra with Sunyaev–Zel’dovich effect data from Planck and Bolocam to measure intracluster medium pressure profiles from 0.03 R _500 ≤ R ≤ 5 R _500 for a sample of 21 low- z galaxy clusters with a median redshift of 〈 z 〉 = 0.08 and a median mass of 〈 M _500 〉 = 6.1 × 10 ^14 M _⊙ and a sample of 19 mid- z galaxy clusters with 〈 z 〉 = 0.50 and 〈 M _500 〉 = 10.6 × 10 ^14 M _⊙ . The mean scaled pressure in the low- z sample is lower at small radii and higher at large radii, a trend that is accurately reproduced in similarly selected samples from The Three Hundred simulations. This difference appears to be primarily due to dynamical state at small radii, evolution at intermediate radii, and a combination of evolution and mass dependence at large radii. Furthermore, the overall flattening of the mean scaled pressure profile in the low- z sample compared to the mid- z sample is consistent with expectations due to differences in the mass accretion rate and the fractional impact of feedback mechanisms. In agreement with previous studies, the fractional scatter about the mean scaled pressure profile reaches a minimum of ≃20% near 0.5 R _500 . This scatter is consistent between the low- z and mid- z samples at all radii, suggesting it is not strongly impacted by sample selection, and this general behavior is reproduced in The Three Hundred simulations. Finally, analytic functions that approximately describe the mass and redshift trends in mean pressure profile shape are provided. |
| first_indexed | 2024-03-12T03:17:15Z |
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| id | doaj.art-aa4ecefe42994fa293b9eac70e85b4b6 |
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| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T03:17:15Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj.art-aa4ecefe42994fa293b9eac70e85b4b62023-09-03T14:08:27ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-01944222110.3847/1538-4357/acb33dThe Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙Jack Sayers0https://orcid.org/0000-0002-8213-3784Adam B. Mantz1https://orcid.org/0000-0002-8031-1217Elena Rasia2https://orcid.org/0000-0003-4175-002XSteven W. Allen3https://orcid.org/0000-0003-0667-5941Weiguang Cui4https://orcid.org/0000-0002-2113-4863Sunil R. Golwala5https://orcid.org/0000-0002-1098-7174R. Glenn Morris6https://orcid.org/0000-0003-2985-9962Jenny T. Wan7https://orcid.org/0000-0001-8872-4991California Institute of Technology , 1200 East California Boulevard, Pasadena, CA, 91125, USA ; jack@caltech.eduKavli Institute for Particle Astrophysics and Cosmology, Stanford University , 452 Lomita Mall, Stanford, CA, 94305, USAINAF—Osservatorio Astronomico di Trieste , via Tiepolo 11, I-34143 Trieste, ItalyKavli Institute for Particle Astrophysics and Cosmology, Stanford University , 452 Lomita Mall, Stanford, CA, 94305, USA; Department of Physics, Stanford University , 382 Via Pueblo Mall, Stanford, CA, 94305, USA; SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, CA, 94025, USAInstitute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ, UKCalifornia Institute of Technology , 1200 East California Boulevard, Pasadena, CA, 91125, USA ; jack@caltech.eduKavli Institute for Particle Astrophysics and Cosmology, Stanford University , 452 Lomita Mall, Stanford, CA, 94305, USA; SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, CA, 94025, USACalifornia Institute of Technology , 1200 East California Boulevard, Pasadena, CA, 91125, USA ; jack@caltech.eduWe have combined X-ray observations from Chandra with Sunyaev–Zel’dovich effect data from Planck and Bolocam to measure intracluster medium pressure profiles from 0.03 R _500 ≤ R ≤ 5 R _500 for a sample of 21 low- z galaxy clusters with a median redshift of 〈 z 〉 = 0.08 and a median mass of 〈 M _500 〉 = 6.1 × 10 ^14 M _⊙ and a sample of 19 mid- z galaxy clusters with 〈 z 〉 = 0.50 and 〈 M _500 〉 = 10.6 × 10 ^14 M _⊙ . The mean scaled pressure in the low- z sample is lower at small radii and higher at large radii, a trend that is accurately reproduced in similarly selected samples from The Three Hundred simulations. This difference appears to be primarily due to dynamical state at small radii, evolution at intermediate radii, and a combination of evolution and mass dependence at large radii. Furthermore, the overall flattening of the mean scaled pressure profile in the low- z sample compared to the mid- z sample is consistent with expectations due to differences in the mass accretion rate and the fractional impact of feedback mechanisms. In agreement with previous studies, the fractional scatter about the mean scaled pressure profile reaches a minimum of ≃20% near 0.5 R _500 . This scatter is consistent between the low- z and mid- z samples at all radii, suggesting it is not strongly impacted by sample selection, and this general behavior is reproduced in The Three Hundred simulations. Finally, analytic functions that approximately describe the mass and redshift trends in mean pressure profile shape are provided.https://doi.org/10.3847/1538-4357/acb33dGalaxy clustersIntracluster mediumSunyaev-Zeldovich effectX-ray astronomy |
| spellingShingle | Jack Sayers Adam B. Mantz Elena Rasia Steven W. Allen Weiguang Cui Sunil R. Golwala R. Glenn Morris Jenny T. Wan The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙ The Astrophysical Journal Galaxy clusters Intracluster medium Sunyaev-Zeldovich effect X-ray astronomy |
| title | The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙ |
| title_full | The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙ |
| title_fullStr | The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙ |
| title_full_unstemmed | The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙ |
| title_short | The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 ≤ z ≤ 0.60 and 4 × 1014 M ⊙ ≤ M 500 ≤ 30 × 1014 M ⊙ |
| title_sort | evolution and mass dependence of galaxy cluster pressure profiles at 0 05 ≤ z ≤ 0 60 and 4 1014 m ⊙ ≤ m 500 ≤ 30 1014 m ⊙ |
| topic | Galaxy clusters Intracluster medium Sunyaev-Zeldovich effect X-ray astronomy |
| url | https://doi.org/10.3847/1538-4357/acb33d |
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