Loading…
CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile
The inner slope ( γ DM ) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo gravitational potential. Cold DM cosmological simulations predict steep inner slopes, γ DM ≃ 1. We test this prediction o...
Saved in:
| Published in: | The Astrophysical journal 2023-12, Vol.958 (2), p.148 |
|---|---|
| Main Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903 |
| container_end_page | |
| container_issue | 2 |
| container_start_page | 148 |
| container_title | The Astrophysical journal |
| container_volume | 958 |
| creator | Biviano, Andrea Pizzuti, Lorenzo Mercurio, Amata Sartoris, Barbara Rosati, Piero Ettori, Stefano Girardi, Marisa Grillo, Claudio Caminha, Gabriel B. Nonino, Mario |
| description | The inner slope (
γ
DM
) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo gravitational potential. Cold DM cosmological simulations predict steep inner slopes,
γ
DM
≃ 1. We test this prediction on the MACS J1206.2-0847 cluster at redshift
z
= 0.44, whose DM density profile has been claimed to be cored at the center. We determine the cluster DM density profile from 2 kpc from the cluster center to the virial radius (∼2 Mpc), using the velocity distribution of ≃500 cluster galaxies and the internal velocity dispersion profile of the Brightest Cluster Galaxy (BCG), obtained from
VIMOS@VLT
and
MUSE@VLT
data. We solve the Jeans equation of dynamical equilibrium using an upgraded version of the MAMPOSSt method. The total mass profile is modeled as a sum of a generalized Navarro–Frenk–White profile that describes the DM component, allowing for a free inner slope of the density profile, a Jaffe profile that describes the BCG stellar mass component, and a nonparametric baryonic profile that describes the sum of the remaining galaxy stellar mass and of the hot intra-cluster gas mass. Our total mass profile is in remarkable agreement with independent determinations based on X-ray observations and strong lensing. We find
γ
DM
=
0.7
−
0.1
+
0.2
(68% confidence levels), consistent with predictions from recent Lambda cold dark matter cosmological numerical simulations. |
| doi_str_mv | 10.3847/1538-4357/acf832 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_crossref_primary_10_3847_1538_4357_acf832</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><doaj_id>oai_doaj_org_article_f4adae7330ca4527bb7eee48411fb09d</doaj_id><sourcerecordid>2894074584</sourcerecordid><originalsourceid>FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903</originalsourceid><addsrcrecordid>eNp1kc1PAjEQxRujiYjePTbx6sJs22273sj6AQaCCWi8Ne3S6iJS7C4H_nuLa_DkaTK_vHkzmYfQZQo9KpnopxmVCaOZ6OvSSUqOUOeAjlEHAFjCqXg9RWd1vdy3JM87aFqMB7Nh8jKe3-D5u8Wj9doGPFv5jcXe4SaiyaCY4ceUAO-RBOIufKvDB57oponSW7uuq2aHn4J31cqeoxOnV7W9-K1d9Hx_Ny-GyXj6MCoG46RkKW-STDPBBc-c4w5S6XJDqSCQ65IvCBgSubbSUOCQl5pqmklqKTfcmEhyoF00an0XXi_VJlSfOuyU15X6AT68KR2aqlxZ5ZheaCsohVKzjAhjhLWWSZamzkC-iF5Xrdcm-K-trRu19NuwjucrInMGgmWSRRW0qjL4ug7WHbamoPYRqP2_1f7fqo0gjly3I5Xf_Hn-K_8GYkSCLg</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2894074584</pqid></control><display><type>article</type><title>CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile</title><source>EZB Electronic Journals Library</source><creator>Biviano, Andrea ; Pizzuti, Lorenzo ; Mercurio, Amata ; Sartoris, Barbara ; Rosati, Piero ; Ettori, Stefano ; Girardi, Marisa ; Grillo, Claudio ; Caminha, Gabriel B. ; Nonino, Mario</creator><creatorcontrib>Biviano, Andrea ; Pizzuti, Lorenzo ; Mercurio, Amata ; Sartoris, Barbara ; Rosati, Piero ; Ettori, Stefano ; Girardi, Marisa ; Grillo, Claudio ; Caminha, Gabriel B. ; Nonino, Mario</creatorcontrib><description>The inner slope (
γ
DM
) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo gravitational potential. Cold DM cosmological simulations predict steep inner slopes,
γ
DM
≃ 1. We test this prediction on the MACS J1206.2-0847 cluster at redshift
z
= 0.44, whose DM density profile has been claimed to be cored at the center. We determine the cluster DM density profile from 2 kpc from the cluster center to the virial radius (∼2 Mpc), using the velocity distribution of ≃500 cluster galaxies and the internal velocity dispersion profile of the Brightest Cluster Galaxy (BCG), obtained from
VIMOS@VLT
and
MUSE@VLT
data. We solve the Jeans equation of dynamical equilibrium using an upgraded version of the MAMPOSSt method. The total mass profile is modeled as a sum of a generalized Navarro–Frenk–White profile that describes the DM component, allowing for a free inner slope of the density profile, a Jaffe profile that describes the BCG stellar mass component, and a nonparametric baryonic profile that describes the sum of the remaining galaxy stellar mass and of the hot intra-cluster gas mass. Our total mass profile is in remarkable agreement with independent determinations based on X-ray observations and strong lensing. We find
γ
DM
=
0.7
−
0.1
+
0.2
(68% confidence levels), consistent with predictions from recent Lambda cold dark matter cosmological numerical simulations.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/acf832</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>Astrophysics ; Baryons ; Brightest cluster galaxies ; Cold dark matter ; Confidence intervals ; Dark matter ; Density ; Galactic clusters ; Galaxies ; Galaxy clusters ; Galaxy distribution ; Halos ; Mathematical models ; Numerical simulations ; Red shift ; Slopes ; Stellar mass ; Sums ; Velocity ; Velocity distribution ; X-ray astronomy</subject><ispartof>The Astrophysical journal, 2023-12, Vol.958 (2), p.148</ispartof><rights>2023. The Author(s). Published by the American Astronomical Society.</rights><rights>2023. The Author(s). Published by the American Astronomical Society. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903</citedby><cites>FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903</cites><orcidid>0000-0003-4117-8617 ; 0000-0002-0857-0732 ; 0000-0001-9261-7849 ; 0000-0001-6342-9662 ; 0000-0002-6813-0632 ; 0000-0001-6052-3274 ; 0000-0003-1861-1865 ; 0000-0001-5654-7580 ; 0000-0002-5926-7143 ; 0000-0003-1337-5269</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Biviano, Andrea</creatorcontrib><creatorcontrib>Pizzuti, Lorenzo</creatorcontrib><creatorcontrib>Mercurio, Amata</creatorcontrib><creatorcontrib>Sartoris, Barbara</creatorcontrib><creatorcontrib>Rosati, Piero</creatorcontrib><creatorcontrib>Ettori, Stefano</creatorcontrib><creatorcontrib>Girardi, Marisa</creatorcontrib><creatorcontrib>Grillo, Claudio</creatorcontrib><creatorcontrib>Caminha, Gabriel B.</creatorcontrib><creatorcontrib>Nonino, Mario</creatorcontrib><title>CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile</title><title>The Astrophysical journal</title><addtitle>APJ</addtitle><addtitle>Astrophys. J</addtitle><description>The inner slope (
γ
DM
) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo gravitational potential. Cold DM cosmological simulations predict steep inner slopes,
γ
DM
≃ 1. We test this prediction on the MACS J1206.2-0847 cluster at redshift
z
= 0.44, whose DM density profile has been claimed to be cored at the center. We determine the cluster DM density profile from 2 kpc from the cluster center to the virial radius (∼2 Mpc), using the velocity distribution of ≃500 cluster galaxies and the internal velocity dispersion profile of the Brightest Cluster Galaxy (BCG), obtained from
VIMOS@VLT
and
MUSE@VLT
data. We solve the Jeans equation of dynamical equilibrium using an upgraded version of the MAMPOSSt method. The total mass profile is modeled as a sum of a generalized Navarro–Frenk–White profile that describes the DM component, allowing for a free inner slope of the density profile, a Jaffe profile that describes the BCG stellar mass component, and a nonparametric baryonic profile that describes the sum of the remaining galaxy stellar mass and of the hot intra-cluster gas mass. Our total mass profile is in remarkable agreement with independent determinations based on X-ray observations and strong lensing. We find
γ
DM
=
0.7
−
0.1
+
0.2
(68% confidence levels), consistent with predictions from recent Lambda cold dark matter cosmological numerical simulations.</description><subject>Astrophysics</subject><subject>Baryons</subject><subject>Brightest cluster galaxies</subject><subject>Cold dark matter</subject><subject>Confidence intervals</subject><subject>Dark matter</subject><subject>Density</subject><subject>Galactic clusters</subject><subject>Galaxies</subject><subject>Galaxy clusters</subject><subject>Galaxy distribution</subject><subject>Halos</subject><subject>Mathematical models</subject><subject>Numerical simulations</subject><subject>Red shift</subject><subject>Slopes</subject><subject>Stellar mass</subject><subject>Sums</subject><subject>Velocity</subject><subject>Velocity distribution</subject><subject>X-ray astronomy</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNp1kc1PAjEQxRujiYjePTbx6sJs22273sj6AQaCCWi8Ne3S6iJS7C4H_nuLa_DkaTK_vHkzmYfQZQo9KpnopxmVCaOZ6OvSSUqOUOeAjlEHAFjCqXg9RWd1vdy3JM87aFqMB7Nh8jKe3-D5u8Wj9doGPFv5jcXe4SaiyaCY4ceUAO-RBOIufKvDB57oponSW7uuq2aHn4J31cqeoxOnV7W9-K1d9Hx_Ny-GyXj6MCoG46RkKW-STDPBBc-c4w5S6XJDqSCQ65IvCBgSubbSUOCQl5pqmklqKTfcmEhyoF00an0XXi_VJlSfOuyU15X6AT68KR2aqlxZ5ZheaCsohVKzjAhjhLWWSZamzkC-iF5Xrdcm-K-trRu19NuwjucrInMGgmWSRRW0qjL4ug7WHbamoPYRqP2_1f7fqo0gjly3I5Xf_Hn-K_8GYkSCLg</recordid><startdate>20231201</startdate><enddate>20231201</enddate><creator>Biviano, Andrea</creator><creator>Pizzuti, Lorenzo</creator><creator>Mercurio, Amata</creator><creator>Sartoris, Barbara</creator><creator>Rosati, Piero</creator><creator>Ettori, Stefano</creator><creator>Girardi, Marisa</creator><creator>Grillo, Claudio</creator><creator>Caminha, Gabriel B.</creator><creator>Nonino, Mario</creator><general>The American Astronomical Society</general><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0003-4117-8617</orcidid><orcidid>https://orcid.org/0000-0002-0857-0732</orcidid><orcidid>https://orcid.org/0000-0001-9261-7849</orcidid><orcidid>https://orcid.org/0000-0001-6342-9662</orcidid><orcidid>https://orcid.org/0000-0002-6813-0632</orcidid><orcidid>https://orcid.org/0000-0001-6052-3274</orcidid><orcidid>https://orcid.org/0000-0003-1861-1865</orcidid><orcidid>https://orcid.org/0000-0001-5654-7580</orcidid><orcidid>https://orcid.org/0000-0002-5926-7143</orcidid><orcidid>https://orcid.org/0000-0003-1337-5269</orcidid></search><sort><creationdate>20231201</creationdate><title>CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile</title><author>Biviano, Andrea ; Pizzuti, Lorenzo ; Mercurio, Amata ; Sartoris, Barbara ; Rosati, Piero ; Ettori, Stefano ; Girardi, Marisa ; Grillo, Claudio ; Caminha, Gabriel B. ; Nonino, Mario</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Astrophysics</topic><topic>Baryons</topic><topic>Brightest cluster galaxies</topic><topic>Cold dark matter</topic><topic>Confidence intervals</topic><topic>Dark matter</topic><topic>Density</topic><topic>Galactic clusters</topic><topic>Galaxies</topic><topic>Galaxy clusters</topic><topic>Galaxy distribution</topic><topic>Halos</topic><topic>Mathematical models</topic><topic>Numerical simulations</topic><topic>Red shift</topic><topic>Slopes</topic><topic>Stellar mass</topic><topic>Sums</topic><topic>Velocity</topic><topic>Velocity distribution</topic><topic>X-ray astronomy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Biviano, Andrea</creatorcontrib><creatorcontrib>Pizzuti, Lorenzo</creatorcontrib><creatorcontrib>Mercurio, Amata</creatorcontrib><creatorcontrib>Sartoris, Barbara</creatorcontrib><creatorcontrib>Rosati, Piero</creatorcontrib><creatorcontrib>Ettori, Stefano</creatorcontrib><creatorcontrib>Girardi, Marisa</creatorcontrib><creatorcontrib>Grillo, Claudio</creatorcontrib><creatorcontrib>Caminha, Gabriel B.</creatorcontrib><creatorcontrib>Nonino, Mario</creatorcontrib><collection>IOP Publishing</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Biviano, Andrea</au><au>Pizzuti, Lorenzo</au><au>Mercurio, Amata</au><au>Sartoris, Barbara</au><au>Rosati, Piero</au><au>Ettori, Stefano</au><au>Girardi, Marisa</au><au>Grillo, Claudio</au><au>Caminha, Gabriel B.</au><au>Nonino, Mario</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile</atitle><jtitle>The Astrophysical journal</jtitle><stitle>APJ</stitle><addtitle>Astrophys. J</addtitle><date>2023-12-01</date><risdate>2023</risdate><volume>958</volume><issue>2</issue><spage>148</spage><pages>148-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>The inner slope (
γ
DM
) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo gravitational potential. Cold DM cosmological simulations predict steep inner slopes,
γ
DM
≃ 1. We test this prediction on the MACS J1206.2-0847 cluster at redshift
z
= 0.44, whose DM density profile has been claimed to be cored at the center. We determine the cluster DM density profile from 2 kpc from the cluster center to the virial radius (∼2 Mpc), using the velocity distribution of ≃500 cluster galaxies and the internal velocity dispersion profile of the Brightest Cluster Galaxy (BCG), obtained from
VIMOS@VLT
and
MUSE@VLT
data. We solve the Jeans equation of dynamical equilibrium using an upgraded version of the MAMPOSSt method. The total mass profile is modeled as a sum of a generalized Navarro–Frenk–White profile that describes the DM component, allowing for a free inner slope of the density profile, a Jaffe profile that describes the BCG stellar mass component, and a nonparametric baryonic profile that describes the sum of the remaining galaxy stellar mass and of the hot intra-cluster gas mass. Our total mass profile is in remarkable agreement with independent determinations based on X-ray observations and strong lensing. We find
γ
DM
=
0.7
−
0.1
+
0.2
(68% confidence levels), consistent with predictions from recent Lambda cold dark matter cosmological numerical simulations.</abstract><cop>Philadelphia</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-4357/acf832</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0003-4117-8617</orcidid><orcidid>https://orcid.org/0000-0002-0857-0732</orcidid><orcidid>https://orcid.org/0000-0001-9261-7849</orcidid><orcidid>https://orcid.org/0000-0001-6342-9662</orcidid><orcidid>https://orcid.org/0000-0002-6813-0632</orcidid><orcidid>https://orcid.org/0000-0001-6052-3274</orcidid><orcidid>https://orcid.org/0000-0003-1861-1865</orcidid><orcidid>https://orcid.org/0000-0001-5654-7580</orcidid><orcidid>https://orcid.org/0000-0002-5926-7143</orcidid><orcidid>https://orcid.org/0000-0003-1337-5269</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 2023-12, Vol.958 (2), p.148 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_crossref_primary_10_3847_1538_4357_acf832 |
| source | EZB Electronic Journals Library |
| subjects | Astrophysics Baryons Brightest cluster galaxies Cold dark matter Confidence intervals Dark matter Density Galactic clusters Galaxies Galaxy clusters Galaxy distribution Halos Mathematical models Numerical simulations Red shift Slopes Stellar mass Sums Velocity Velocity distribution X-ray astronomy |
| title | CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-19T23%3A25%3A12IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=CLASH-VLT:%20The%20Inner%20Slope%20of%20the%20MACS%20J1206.2-0847%20Dark%20Matter%20Density%20Profile&rft.jtitle=The%20Astrophysical%20journal&rft.au=Biviano,%20Andrea&rft.date=2023-12-01&rft.volume=958&rft.issue=2&rft.spage=148&rft.pages=148-&rft.issn=0004-637X&rft.eissn=1538-4357&rft_id=info:doi/10.3847/1538-4357/acf832&rft_dat=%3Cproquest_cross%3E2894074584%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c416t-5a476765ff6f018f9b337209ac6d20b2ff6ae8b30609ca3a3583e36b6bb609903%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2894074584&rft_id=info:pmid/&rfr_iscdi=true |