'Missing image' in gravitational lens systems?
Gravitational lens models involving extended mass distributions generally predict an odd number of images 1 , with one of the images close to the centre of the principal lens galaxy. In all the lens systems observed up to now, only an even number of images have been unambiguously detected. A number...
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| Veröffentlicht in: | Nature (London) 1986-05, Vol.321 (6065), p.45-46 |
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| container_title | Nature (London) |
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| creator | Narasimha, D Subramanian, K Chitre, S. M |
| description | Gravitational lens models involving extended mass distributions generally predict an odd number of images
1
, with one of the images close to the centre of the principal lens galaxy. In all the lens systems observed up to now, only an even number of images have been unambiguously detected. A number of suggestions
2–4
have been advanced to explain the absence of the ‘odd’ image, but none of these is sufficiently compelling. We suggest here that the presence of a compact nucleus with mass in the range 5 × 10
9
to 5 × 10
10
solar masses (
M
⊙
), contained within a region of size ≲50 pc at the centre of a lens galaxy, would dim the odd image significantly without affecting the rest of the image configuration. |
| doi_str_mv | 10.1038/321045a0 |
| format | Article |
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1
, with one of the images close to the centre of the principal lens galaxy. In all the lens systems observed up to now, only an even number of images have been unambiguously detected. A number of suggestions
2–4
have been advanced to explain the absence of the ‘odd’ image, but none of these is sufficiently compelling. We suggest here that the presence of a compact nucleus with mass in the range 5 × 10
9
to 5 × 10
10
solar masses (
M
⊙
), contained within a region of size ≲50 pc at the centre of a lens galaxy, would dim the odd image significantly without affecting the rest of the image configuration.</description><identifier>ISSN: 0028-0836</identifier><identifier>EISSN: 1476-4687</identifier><identifier>DOI: 10.1038/321045a0</identifier><identifier>CODEN: NATUAS</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>Astronomy ; Earth, ocean, space ; Exact sciences and technology ; Fundamental aspects of astrophysics ; Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations ; Humanities and Social Sciences ; letter ; multidisciplinary ; Relativity and gravitation ; Science ; Science (multidisciplinary)</subject><ispartof>Nature (London), 1986-05, Vol.321 (6065), p.45-46</ispartof><rights>Springer Nature Limited 1986</rights><rights>1987 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c342t-73ef4be31665c41c02d82ec2bd8bcad7604b896460f661d4bf7d692d47a0abcb3</citedby><cites>FETCH-LOGICAL-c342t-73ef4be31665c41c02d82ec2bd8bcad7604b896460f661d4bf7d692d47a0abcb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,2728,27926,27927</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7980705$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Narasimha, D</creatorcontrib><creatorcontrib>Subramanian, K</creatorcontrib><creatorcontrib>Chitre, S. M</creatorcontrib><title>'Missing image' in gravitational lens systems?</title><title>Nature (London)</title><addtitle>Nature</addtitle><description>Gravitational lens models involving extended mass distributions generally predict an odd number of images
1
, with one of the images close to the centre of the principal lens galaxy. In all the lens systems observed up to now, only an even number of images have been unambiguously detected. A number of suggestions
2–4
have been advanced to explain the absence of the ‘odd’ image, but none of these is sufficiently compelling. We suggest here that the presence of a compact nucleus with mass in the range 5 × 10
9
to 5 × 10
10
solar masses (
M
⊙
), contained within a region of size ≲50 pc at the centre of a lens galaxy, would dim the odd image significantly without affecting the rest of the image configuration.</description><subject>Astronomy</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Fundamental aspects of astrophysics</subject><subject>Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations</subject><subject>Humanities and Social Sciences</subject><subject>letter</subject><subject>multidisciplinary</subject><subject>Relativity and gravitation</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><issn>0028-0836</issn><issn>1476-4687</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><recordid>eNpt0M1LwzAYx_EgCs4p-BdID-L00PnkpUl2Ehm-wcSLnkuapiWjS2eeVth_b6W6k6cc8uELz4-QcwpzClzfckZBZAYOyIQKJVMhtTokEwCmU9BcHpMTxDUAZFSJCZnPXj2iD3XiN6Z2s8SHpI7my3em820wTdK4gAnusHMbvDslR5Vp0J39vlPy8fjwvnxOV29PL8v7VWq5YF2quKtE4TiVMrOCWmClZs6yotSFNaWSIAq9kEJCJSUtRVGpUi5YKZQBU9iCT8nV2N3G9rN32OUbj9Y1jQmu7TFngjKpGBvg9QhtbBGjq_JtHC6Ju5xC_jNI_jfIQC9_mwataapogvW492qhQUE2sJuR4fATahfzddvHYQn8L3kx2mC6Prp9aw--AfaEdUk</recordid><startdate>19860501</startdate><enddate>19860501</enddate><creator>Narasimha, D</creator><creator>Subramanian, K</creator><creator>Chitre, S. M</creator><general>Nature Publishing Group UK</general><general>Nature Publishing</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19860501</creationdate><title>'Missing image' in gravitational lens systems?</title><author>Narasimha, D ; Subramanian, K ; Chitre, S. M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c342t-73ef4be31665c41c02d82ec2bd8bcad7604b896460f661d4bf7d692d47a0abcb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>Astronomy</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Fundamental aspects of astrophysics</topic><topic>Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations</topic><topic>Humanities and Social Sciences</topic><topic>letter</topic><topic>multidisciplinary</topic><topic>Relativity and gravitation</topic><topic>Science</topic><topic>Science (multidisciplinary)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Narasimha, D</creatorcontrib><creatorcontrib>Subramanian, K</creatorcontrib><creatorcontrib>Chitre, S. M</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Nature (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Narasimha, D</au><au>Subramanian, K</au><au>Chitre, S. M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>'Missing image' in gravitational lens systems?</atitle><jtitle>Nature (London)</jtitle><stitle>Nature</stitle><date>1986-05-01</date><risdate>1986</risdate><volume>321</volume><issue>6065</issue><spage>45</spage><epage>46</epage><pages>45-46</pages><issn>0028-0836</issn><eissn>1476-4687</eissn><coden>NATUAS</coden><abstract>Gravitational lens models involving extended mass distributions generally predict an odd number of images
1
, with one of the images close to the centre of the principal lens galaxy. In all the lens systems observed up to now, only an even number of images have been unambiguously detected. A number of suggestions
2–4
have been advanced to explain the absence of the ‘odd’ image, but none of these is sufficiently compelling. We suggest here that the presence of a compact nucleus with mass in the range 5 × 10
9
to 5 × 10
10
solar masses (
M
⊙
), contained within a region of size ≲50 pc at the centre of a lens galaxy, would dim the odd image significantly without affecting the rest of the image configuration.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><doi>10.1038/321045a0</doi><tpages>2</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Nature (London), 1986-05, Vol.321 (6065), p.45-46 |
| issn | 0028-0836 1476-4687 |
| language | eng |
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| source | Nature; Alma/SFX Local Collection |
| subjects | Astronomy Earth, ocean, space Exact sciences and technology Fundamental aspects of astrophysics Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations Humanities and Social Sciences letter multidisciplinary Relativity and gravitation Science Science (multidisciplinary) |
| title | 'Missing image' in gravitational lens systems? |
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