Dust enrichment in the circum-galactic medium
ABSTRACT To understand the origin of dust in the circum-galactic medium (CGM), we develop a dust enrichment model. We describe each of the central galaxy and its CGM as a single zone, and consider the mass exchange between them through galactic inflows and outflows. We calculate the evolution of the...
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Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2024-03, Vol.528 (3), p.5008-5018 |
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creator | Otsuki, Mau Hirashita, Hiroyuki |
description | ABSTRACT
To understand the origin of dust in the circum-galactic medium (CGM), we develop a dust enrichment model. We describe each of the central galaxy and its CGM as a single zone, and consider the mass exchange between them through galactic inflows and outflows. We calculate the evolution of the gas, metal, and dust masses in the galaxy and the CGM. In the galaxy, we include stellar dust production and interstellar dust processing following our previous models. The dust in the galaxy is transported to the CGM via galactic outflows, and it is further processed by dust destruction (sputtering) in the CGM. We parametrize the time-scale or efficiency of each process and investigate the effect on the dust abundance in the CGM. We find that the resulting dust mass is sensitive to the dust destruction in the CGM, and the dust supply from galactic outflows, both of which directly regulate the dust abundance in the CGM. The inflow time-scale also affects the dust abundance in the CGM because it determines the gas mass evolution (thus, the star formation history) in the galaxy. The dust abundance in the CGM, however, is insensitive to stellar dust formation in the galaxy at later epochs because the dust production is dominated by dust growth in the interstellar medium. We also find that the resulting dust mass in the CGM is consistent with the value derived from a large sample of SDSS galaxies. |
doi_str_mv | 10.1093/mnras/stae342 |
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To understand the origin of dust in the circum-galactic medium (CGM), we develop a dust enrichment model. We describe each of the central galaxy and its CGM as a single zone, and consider the mass exchange between them through galactic inflows and outflows. We calculate the evolution of the gas, metal, and dust masses in the galaxy and the CGM. In the galaxy, we include stellar dust production and interstellar dust processing following our previous models. The dust in the galaxy is transported to the CGM via galactic outflows, and it is further processed by dust destruction (sputtering) in the CGM. We parametrize the time-scale or efficiency of each process and investigate the effect on the dust abundance in the CGM. We find that the resulting dust mass is sensitive to the dust destruction in the CGM, and the dust supply from galactic outflows, both of which directly regulate the dust abundance in the CGM. The inflow time-scale also affects the dust abundance in the CGM because it determines the gas mass evolution (thus, the star formation history) in the galaxy. The dust abundance in the CGM, however, is insensitive to stellar dust formation in the galaxy at later epochs because the dust production is dominated by dust growth in the interstellar medium. We also find that the resulting dust mass in the CGM is consistent with the value derived from a large sample of SDSS galaxies.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/stae342</identifier><language>eng</language><publisher>London: Oxford University Press</publisher><subject>Abundance ; Astronomical models ; Cosmic dust ; Dust ; Galactic evolution ; Galaxies ; Inflow ; Interstellar gas ; Interstellar matter ; Outflow ; Star & galaxy formation ; Star formation</subject><ispartof>Monthly notices of the Royal Astronomical Society, 2024-03, Vol.528 (3), p.5008-5018</ispartof><rights>2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. 2024</rights><rights>2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-de7cfe4b41f12dbf4382be4f1458a50118b6c0a6331b0e3e06c10de393b0b6813</citedby><cites>FETCH-LOGICAL-c337t-de7cfe4b41f12dbf4382be4f1458a50118b6c0a6331b0e3e06c10de393b0b6813</cites><orcidid>0009-0009-7104-6990 ; 0000-0002-4189-8297</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,1604,27924,27925</link.rule.ids></links><search><creatorcontrib>Otsuki, Mau</creatorcontrib><creatorcontrib>Hirashita, Hiroyuki</creatorcontrib><title>Dust enrichment in the circum-galactic medium</title><title>Monthly notices of the Royal Astronomical Society</title><description>ABSTRACT
To understand the origin of dust in the circum-galactic medium (CGM), we develop a dust enrichment model. We describe each of the central galaxy and its CGM as a single zone, and consider the mass exchange between them through galactic inflows and outflows. We calculate the evolution of the gas, metal, and dust masses in the galaxy and the CGM. In the galaxy, we include stellar dust production and interstellar dust processing following our previous models. The dust in the galaxy is transported to the CGM via galactic outflows, and it is further processed by dust destruction (sputtering) in the CGM. We parametrize the time-scale or efficiency of each process and investigate the effect on the dust abundance in the CGM. We find that the resulting dust mass is sensitive to the dust destruction in the CGM, and the dust supply from galactic outflows, both of which directly regulate the dust abundance in the CGM. The inflow time-scale also affects the dust abundance in the CGM because it determines the gas mass evolution (thus, the star formation history) in the galaxy. The dust abundance in the CGM, however, is insensitive to stellar dust formation in the galaxy at later epochs because the dust production is dominated by dust growth in the interstellar medium. We also find that the resulting dust mass in the CGM is consistent with the value derived from a large sample of SDSS galaxies.</description><subject>Abundance</subject><subject>Astronomical models</subject><subject>Cosmic dust</subject><subject>Dust</subject><subject>Galactic evolution</subject><subject>Galaxies</subject><subject>Inflow</subject><subject>Interstellar gas</subject><subject>Interstellar matter</subject><subject>Outflow</subject><subject>Star & galaxy formation</subject><subject>Star formation</subject><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>TOX</sourceid><recordid>eNqF0D9PwzAQhnELgUQpjOyRWFhM73KOm4yo_JUqscBs2c6FpmqSYjsD355CujPd8tO90iPENcIdQkWLrg82LmKyTCo_ETMkXci80vpUzACokOUS8VxcxLgFAEW5ngn5MMaUcR9av-m4T1nbZ2nDmW-DHzv5aXfWp9ZnHdft2F2Ks8buIl8d71x8PD2-r17k-u35dXW_lp5omWTNS9-wcgobzGvXKCpzx6pBVZS2AMTSaQ9WE6EDJgbtEWqmihw4XSLNxc30dx-Gr5FjMtthDP1h0hACQVFRBQclJ-XDEGPgxuxD29nwbRDMbxHzV8Qcixz87eSHcf8P_QGU1mLS</recordid><startdate>20240301</startdate><enddate>20240301</enddate><creator>Otsuki, Mau</creator><creator>Hirashita, Hiroyuki</creator><general>Oxford University Press</general><scope>TOX</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0009-0009-7104-6990</orcidid><orcidid>https://orcid.org/0000-0002-4189-8297</orcidid></search><sort><creationdate>20240301</creationdate><title>Dust enrichment in the circum-galactic medium</title><author>Otsuki, Mau ; Hirashita, Hiroyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-de7cfe4b41f12dbf4382be4f1458a50118b6c0a6331b0e3e06c10de393b0b6813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Abundance</topic><topic>Astronomical models</topic><topic>Cosmic dust</topic><topic>Dust</topic><topic>Galactic evolution</topic><topic>Galaxies</topic><topic>Inflow</topic><topic>Interstellar gas</topic><topic>Interstellar matter</topic><topic>Outflow</topic><topic>Star & galaxy formation</topic><topic>Star formation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Otsuki, Mau</creatorcontrib><creatorcontrib>Hirashita, Hiroyuki</creatorcontrib><collection>Oxford Journals Open Access Collection</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Otsuki, Mau</au><au>Hirashita, Hiroyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dust enrichment in the circum-galactic medium</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2024-03-01</date><risdate>2024</risdate><volume>528</volume><issue>3</issue><spage>5008</spage><epage>5018</epage><pages>5008-5018</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>ABSTRACT
To understand the origin of dust in the circum-galactic medium (CGM), we develop a dust enrichment model. We describe each of the central galaxy and its CGM as a single zone, and consider the mass exchange between them through galactic inflows and outflows. We calculate the evolution of the gas, metal, and dust masses in the galaxy and the CGM. In the galaxy, we include stellar dust production and interstellar dust processing following our previous models. The dust in the galaxy is transported to the CGM via galactic outflows, and it is further processed by dust destruction (sputtering) in the CGM. We parametrize the time-scale or efficiency of each process and investigate the effect on the dust abundance in the CGM. We find that the resulting dust mass is sensitive to the dust destruction in the CGM, and the dust supply from galactic outflows, both of which directly regulate the dust abundance in the CGM. The inflow time-scale also affects the dust abundance in the CGM because it determines the gas mass evolution (thus, the star formation history) in the galaxy. The dust abundance in the CGM, however, is insensitive to stellar dust formation in the galaxy at later epochs because the dust production is dominated by dust growth in the interstellar medium. We also find that the resulting dust mass in the CGM is consistent with the value derived from a large sample of SDSS galaxies.</abstract><cop>London</cop><pub>Oxford University Press</pub><doi>10.1093/mnras/stae342</doi><tpages>11</tpages><orcidid>https://orcid.org/0009-0009-7104-6990</orcidid><orcidid>https://orcid.org/0000-0002-4189-8297</orcidid><oa>free_for_read</oa></addata></record> |
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source | DOAJ Directory of Open Access Journals; Oxford Journals Open Access Collection |
subjects | Abundance Astronomical models Cosmic dust Dust Galactic evolution Galaxies Inflow Interstellar gas Interstellar matter Outflow Star & galaxy formation Star formation |
title | Dust enrichment in the circum-galactic medium |
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