Faraday rotation from Abell clusters of galaxies
Observations performed with the Very Large Array (VLA) indicate that the distribution of rotation measures of sources seen behind Abell clusters of galaxies is not statistically different from the distribution of sources not behind clusters. A conservative upper limit of 55 rad/sq m is set for the a...
Gespeichert in:
| Veröffentlicht in: | The Astrophysical journal 1989-12, Vol.347 (1), p.144-151 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 151 |
|---|---|
| container_issue | 1 |
| container_start_page | 144 |
| container_title | The Astrophysical journal |
| container_volume | 347 |
| creator | HENNESSY, G. S OWEN, F. N EILEK, J. A |
| description | Observations performed with the Very Large Array (VLA) indicate that the distribution of rotation measures of sources seen behind Abell clusters of galaxies is not statistically different from the distribution of sources not behind clusters. A conservative upper limit of 55 rad/sq m is set for the amount of excess rotation which can be attributed to clusters of galaxies. This limit is influenced by the sources observed rather than by properties of the clusters. Assuming that the magnetic field of the cluster is not tangled, the conservative upper limit for excess Faraday rotation implies that the magnetic field strength is less than 6.8 x 10 to the -8th G, which is lower than limits set from either energy equipartition arguments from cluster halos or from inverse Compton limits from X-ray observations. The magnetic field is tangled on size scales of order a few tens of kiloparsecs, and the size scale for tangling is from 460 to 4 kpc, assuming a Hubble parameter of 75 km/s/Mpc. 24 refs. |
| doi_str_mv | 10.1086/168104 |
| format | Article |
| fullrecord | <record><control><sourceid>pascalfrancis_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_6966856</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>6679477</sourcerecordid><originalsourceid>FETCH-LOGICAL-c275t-7f820dac38a0f36caa63185d1f58d21d813b7d573a4e1063985adef93da5af923</originalsourceid><addsrcrecordid>eNo90MtKAzEYBeAgCo5VnyGIuBtNJpPbshSrQsGNgrvwNxeNTCcliWDf3pYprg4HPs7iIHRNyT0lSjxQoSjpT1BDOVNtz7g8RQ0hpG8Fkx_n6KKU70PttG4QWUIGBzucU4Ua04hDThs8X_thwHb4KdXnglPAnzDAb_TlEp0FGIq_OuYMvS8f3xbP7er16WUxX7W2k7y2MqiOOLBMAQlMWADBqOKOBq5cR52ibC0dlwx6T4lgWnFwPmjmgEPQHZuhm2k3lRpNsbF6-2XTOHpbjdBCKC726G5CNqdSsg9mm-MG8s5QYg5nmOmMPbyd4BaKhSFkGG0s_1oIqXsp2R81o1wx</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Faraday rotation from Abell clusters of galaxies</title><source>Alma/SFX Local Collection</source><creator>HENNESSY, G. S ; OWEN, F. N ; EILEK, J. A</creator><creatorcontrib>HENNESSY, G. S ; OWEN, F. N ; EILEK, J. A</creatorcontrib><description>Observations performed with the Very Large Array (VLA) indicate that the distribution of rotation measures of sources seen behind Abell clusters of galaxies is not statistically different from the distribution of sources not behind clusters. A conservative upper limit of 55 rad/sq m is set for the amount of excess rotation which can be attributed to clusters of galaxies. This limit is influenced by the sources observed rather than by properties of the clusters. Assuming that the magnetic field of the cluster is not tangled, the conservative upper limit for excess Faraday rotation implies that the magnetic field strength is less than 6.8 x 10 to the -8th G, which is lower than limits set from either energy equipartition arguments from cluster halos or from inverse Compton limits from X-ray observations. The magnetic field is tangled on size scales of order a few tens of kiloparsecs, and the size scale for tangling is from 460 to 4 kpc, assuming a Hubble parameter of 75 km/s/Mpc. 24 refs.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1086/168104</identifier><identifier>CODEN: ASJOAB</identifier><language>eng</language><publisher>Chicago, IL: University of Chicago Press</publisher><subject>640105 - Astrophysics & Cosmology- Galaxies ; Astronomy ; Characteristics and properties of external galaxies and extragalactic objects ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; Earth, ocean, space ; Exact sciences and technology ; FARADAY EFFECT ; GALAXY CLUSTERS ; GRAVITATIONAL FIELDS ; Intergalactic matter ; quasar absorption and emission-line systems ; lyman forest ; INTERGALACTIC SPACE ; LIMITING VALUES ; MAGNETIC FIELDS ; MAGNETIC FLUX ; MOTION ; ROTATION ; SPACE ; Stellar systems. Galactic and extragalactic objects and systems. The universe</subject><ispartof>The Astrophysical journal, 1989-12, Vol.347 (1), p.144-151</ispartof><rights>1990 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c275t-7f820dac38a0f36caa63185d1f58d21d813b7d573a4e1063985adef93da5af923</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=6679477$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6966856$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>HENNESSY, G. S</creatorcontrib><creatorcontrib>OWEN, F. N</creatorcontrib><creatorcontrib>EILEK, J. A</creatorcontrib><title>Faraday rotation from Abell clusters of galaxies</title><title>The Astrophysical journal</title><description>Observations performed with the Very Large Array (VLA) indicate that the distribution of rotation measures of sources seen behind Abell clusters of galaxies is not statistically different from the distribution of sources not behind clusters. A conservative upper limit of 55 rad/sq m is set for the amount of excess rotation which can be attributed to clusters of galaxies. This limit is influenced by the sources observed rather than by properties of the clusters. Assuming that the magnetic field of the cluster is not tangled, the conservative upper limit for excess Faraday rotation implies that the magnetic field strength is less than 6.8 x 10 to the -8th G, which is lower than limits set from either energy equipartition arguments from cluster halos or from inverse Compton limits from X-ray observations. The magnetic field is tangled on size scales of order a few tens of kiloparsecs, and the size scale for tangling is from 460 to 4 kpc, assuming a Hubble parameter of 75 km/s/Mpc. 24 refs.</description><subject>640105 - Astrophysics & Cosmology- Galaxies</subject><subject>Astronomy</subject><subject>Characteristics and properties of external galaxies and extragalactic objects</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>FARADAY EFFECT</subject><subject>GALAXY CLUSTERS</subject><subject>GRAVITATIONAL FIELDS</subject><subject>Intergalactic matter ; quasar absorption and emission-line systems ; lyman forest</subject><subject>INTERGALACTIC SPACE</subject><subject>LIMITING VALUES</subject><subject>MAGNETIC FIELDS</subject><subject>MAGNETIC FLUX</subject><subject>MOTION</subject><subject>ROTATION</subject><subject>SPACE</subject><subject>Stellar systems. Galactic and extragalactic objects and systems. The universe</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNo90MtKAzEYBeAgCo5VnyGIuBtNJpPbshSrQsGNgrvwNxeNTCcliWDf3pYprg4HPs7iIHRNyT0lSjxQoSjpT1BDOVNtz7g8RQ0hpG8Fkx_n6KKU70PttG4QWUIGBzucU4Ua04hDThs8X_thwHb4KdXnglPAnzDAb_TlEp0FGIq_OuYMvS8f3xbP7er16WUxX7W2k7y2MqiOOLBMAQlMWADBqOKOBq5cR52ibC0dlwx6T4lgWnFwPmjmgEPQHZuhm2k3lRpNsbF6-2XTOHpbjdBCKC726G5CNqdSsg9mm-MG8s5QYg5nmOmMPbyd4BaKhSFkGG0s_1oIqXsp2R81o1wx</recordid><startdate>19891201</startdate><enddate>19891201</enddate><creator>HENNESSY, G. S</creator><creator>OWEN, F. N</creator><creator>EILEK, J. A</creator><general>University of Chicago Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>19891201</creationdate><title>Faraday rotation from Abell clusters of galaxies</title><author>HENNESSY, G. S ; OWEN, F. N ; EILEK, J. A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c275t-7f820dac38a0f36caa63185d1f58d21d813b7d573a4e1063985adef93da5af923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>640105 - Astrophysics & Cosmology- Galaxies</topic><topic>Astronomy</topic><topic>Characteristics and properties of external galaxies and extragalactic objects</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>FARADAY EFFECT</topic><topic>GALAXY CLUSTERS</topic><topic>GRAVITATIONAL FIELDS</topic><topic>Intergalactic matter ; quasar absorption and emission-line systems ; lyman forest</topic><topic>INTERGALACTIC SPACE</topic><topic>LIMITING VALUES</topic><topic>MAGNETIC FIELDS</topic><topic>MAGNETIC FLUX</topic><topic>MOTION</topic><topic>ROTATION</topic><topic>SPACE</topic><topic>Stellar systems. Galactic and extragalactic objects and systems. The universe</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HENNESSY, G. S</creatorcontrib><creatorcontrib>OWEN, F. N</creatorcontrib><creatorcontrib>EILEK, J. A</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HENNESSY, G. S</au><au>OWEN, F. N</au><au>EILEK, J. A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Faraday rotation from Abell clusters of galaxies</atitle><jtitle>The Astrophysical journal</jtitle><date>1989-12-01</date><risdate>1989</risdate><volume>347</volume><issue>1</issue><spage>144</spage><epage>151</epage><pages>144-151</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>Observations performed with the Very Large Array (VLA) indicate that the distribution of rotation measures of sources seen behind Abell clusters of galaxies is not statistically different from the distribution of sources not behind clusters. A conservative upper limit of 55 rad/sq m is set for the amount of excess rotation which can be attributed to clusters of galaxies. This limit is influenced by the sources observed rather than by properties of the clusters. Assuming that the magnetic field of the cluster is not tangled, the conservative upper limit for excess Faraday rotation implies that the magnetic field strength is less than 6.8 x 10 to the -8th G, which is lower than limits set from either energy equipartition arguments from cluster halos or from inverse Compton limits from X-ray observations. The magnetic field is tangled on size scales of order a few tens of kiloparsecs, and the size scale for tangling is from 460 to 4 kpc, assuming a Hubble parameter of 75 km/s/Mpc. 24 refs.</abstract><cop>Chicago, IL</cop><pub>University of Chicago Press</pub><doi>10.1086/168104</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 1989-12, Vol.347 (1), p.144-151 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_osti_scitechconnect_6966856 |
| source | Alma/SFX Local Collection |
| subjects | 640105 - Astrophysics & Cosmology- Galaxies Astronomy Characteristics and properties of external galaxies and extragalactic objects CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Earth, ocean, space Exact sciences and technology FARADAY EFFECT GALAXY CLUSTERS GRAVITATIONAL FIELDS Intergalactic matter quasar absorption and emission-line systems lyman forest INTERGALACTIC SPACE LIMITING VALUES MAGNETIC FIELDS MAGNETIC FLUX MOTION ROTATION SPACE Stellar systems. Galactic and extragalactic objects and systems. The universe |
| title | Faraday rotation from Abell clusters of galaxies |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-12T11%3A44%3A50IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-pascalfrancis_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Faraday%20rotation%20from%20Abell%20clusters%20of%20galaxies&rft.jtitle=The%20Astrophysical%20journal&rft.au=HENNESSY,%20G.%20S&rft.date=1989-12-01&rft.volume=347&rft.issue=1&rft.spage=144&rft.epage=151&rft.pages=144-151&rft.issn=0004-637X&rft.eissn=1538-4357&rft.coden=ASJOAB&rft_id=info:doi/10.1086/168104&rft_dat=%3Cpascalfrancis_osti_%3E6679477%3C/pascalfrancis_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |