44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion
In core-collapse supernovae, titanium-44 (44Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32–...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2015-05, Vol.348 (6235), p.670-671 |
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| creator | Boggs, S. E. Harrison, F. A. Miyasaka, H. Grefenstette, B. W. Zoglauer, A. Fryer, C. L. Reynolds, S. P. Alexander, D. M. An, H. Barret, D. Christensen, F. E. Craig, W. W. Forster, K. Giommi, P. Hailey, C. J. Hornstrup, A. Kitaguchi, T. Koglin, J. E. Madsen, K. K. Mao, P. H. Mori, K. Perri, M. Pivovaroff, M. J. Puccetti, S. Rana, V. Stern, D. Westergaard, N. J. Zhang, W. W. |
| description | In core-collapse supernovae, titanium-44 (44Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32–kilo–electron volt emission lines from decay of 44Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ∼700 kilometers per second, direct evidence of large-scale asymmetry in the explosion. |
| doi_str_mv | 10.1126/science.aaa2259 |
| format | Article |
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E. ; Harrison, F. A. ; Miyasaka, H. ; Grefenstette, B. W. ; Zoglauer, A. ; Fryer, C. L. ; Reynolds, S. P. ; Alexander, D. M. ; An, H. ; Barret, D. ; Christensen, F. E. ; Craig, W. W. ; Forster, K. ; Giommi, P. ; Hailey, C. J. ; Hornstrup, A. ; Kitaguchi, T. ; Koglin, J. E. ; Madsen, K. K. ; Mao, P. H. ; Mori, K. ; Perri, M. ; Pivovaroff, M. J. ; Puccetti, S. ; Rana, V. ; Stern, D. ; Westergaard, N. J. ; Zhang, W. W.</creator><creatorcontrib>Boggs, S. E. ; Harrison, F. A. ; Miyasaka, H. ; Grefenstette, B. W. ; Zoglauer, A. ; Fryer, C. L. ; Reynolds, S. P. ; Alexander, D. M. ; An, H. ; Barret, D. ; Christensen, F. E. ; Craig, W. W. ; Forster, K. ; Giommi, P. ; Hailey, C. J. ; Hornstrup, A. ; Kitaguchi, T. ; Koglin, J. E. ; Madsen, K. K. ; Mao, P. H. ; Mori, K. ; Perri, M. ; Pivovaroff, M. J. ; Puccetti, S. ; Rana, V. ; Stern, D. ; Westergaard, N. J. ; Zhang, W. W. ; SLAC National Accelerator Lab., Menlo Park, CA (United States)</creatorcontrib><description>In core-collapse supernovae, titanium-44 (44Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32–kilo–electron volt emission lines from decay of 44Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ∼700 kilometers per second, direct evidence of large-scale asymmetry in the explosion.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.aaa2259</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington: American Association for the Advancement of Science</publisher><subject>Aluminum ; Asymmetry ; Emission ; Explosions ; Eyes ; Gamma rays ; Supernova 1987A ; Supernovae ; X-rays</subject><ispartof>Science (American Association for the Advancement of Science), 2015-05, Vol.348 (6235), p.670-671</ispartof><rights>Copyright © 2015 American Association for the Advancement of Science</rights><rights>Copyright © 2015, American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/24747442$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/24747442$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,315,782,786,805,887,27933,27934,58026,58259</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1262011$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Boggs, S. E.</creatorcontrib><creatorcontrib>Harrison, F. A.</creatorcontrib><creatorcontrib>Miyasaka, H.</creatorcontrib><creatorcontrib>Grefenstette, B. W.</creatorcontrib><creatorcontrib>Zoglauer, A.</creatorcontrib><creatorcontrib>Fryer, C. L.</creatorcontrib><creatorcontrib>Reynolds, S. P.</creatorcontrib><creatorcontrib>Alexander, D. M.</creatorcontrib><creatorcontrib>An, H.</creatorcontrib><creatorcontrib>Barret, D.</creatorcontrib><creatorcontrib>Christensen, F. E.</creatorcontrib><creatorcontrib>Craig, W. W.</creatorcontrib><creatorcontrib>Forster, K.</creatorcontrib><creatorcontrib>Giommi, P.</creatorcontrib><creatorcontrib>Hailey, C. J.</creatorcontrib><creatorcontrib>Hornstrup, A.</creatorcontrib><creatorcontrib>Kitaguchi, T.</creatorcontrib><creatorcontrib>Koglin, J. E.</creatorcontrib><creatorcontrib>Madsen, K. K.</creatorcontrib><creatorcontrib>Mao, P. H.</creatorcontrib><creatorcontrib>Mori, K.</creatorcontrib><creatorcontrib>Perri, M.</creatorcontrib><creatorcontrib>Pivovaroff, M. J.</creatorcontrib><creatorcontrib>Puccetti, S.</creatorcontrib><creatorcontrib>Rana, V.</creatorcontrib><creatorcontrib>Stern, D.</creatorcontrib><creatorcontrib>Westergaard, N. J.</creatorcontrib><creatorcontrib>Zhang, W. W.</creatorcontrib><creatorcontrib>SLAC National Accelerator Lab., Menlo Park, CA (United States)</creatorcontrib><title>44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion</title><title>Science (American Association for the Advancement of Science)</title><description>In core-collapse supernovae, titanium-44 (44Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32–kilo–electron volt emission lines from decay of 44Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ∼700 kilometers per second, direct evidence of large-scale asymmetry in the explosion.</description><subject>Aluminum</subject><subject>Asymmetry</subject><subject>Emission</subject><subject>Explosions</subject><subject>Eyes</subject><subject>Gamma rays</subject><subject>Supernova 1987A</subject><subject>Supernovae</subject><subject>X-rays</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpdkD1PwzAQhi0EEqUwMyFZsLCk-DOOx6rio1IFA2WOLo4DrhK72Cmi_x6jMqEbbrjnTve8CF1SMqOUlXfJOOuNnQEAY1IfoQklWhaaEX6MJoTwsqiIkqfoLKUNIXmm-QQthVg7_A7DAEWEPbaDS8kFj3vnbcJdDAN-faa6UnMc7ZeFHoPHkPbDYMfoDLbf2z78bpyjkw76ZC_--hS9PdyvF0_F6uVxuZivig1VpS6UIbppwHIoFTOEqEa2nW5L2QnViEpRxruKNyBoCzK_qImpWmikplwJazo-RdeHuyGNrs7WozUfJnhvzVjnIBihNEO3B2gbw-fOprHOXsb2PXgbdqmmmghGRKl1Rm_-oZuwiz4r1LRUWhBOJc_U1YHapDHEehvdAHFfM6FyCcZ_ADlAcco</recordid><startdate>20150508</startdate><enddate>20150508</enddate><creator>Boggs, S. 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E. ; Harrison, F. A. ; Miyasaka, H. ; Grefenstette, B. W. ; Zoglauer, A. ; Fryer, C. L. ; Reynolds, S. P. ; Alexander, D. M. ; An, H. ; Barret, D. ; Christensen, F. E. ; Craig, W. W. ; Forster, K. ; Giommi, P. ; Hailey, C. J. ; Hornstrup, A. ; Kitaguchi, T. ; Koglin, J. E. ; Madsen, K. K. ; Mao, P. H. ; Mori, K. ; Perri, M. ; Pivovaroff, M. J. ; Puccetti, S. ; Rana, V. ; Stern, D. ; Westergaard, N. J. ; Zhang, W. 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W.</au><aucorp>SLAC National Accelerator Lab., Menlo Park, CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><date>2015-05-08</date><risdate>2015</risdate><volume>348</volume><issue>6235</issue><spage>670</spage><epage>671</epage><pages>670-671</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><coden>SCIEAS</coden><abstract>In core-collapse supernovae, titanium-44 (44Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32–kilo–electron volt emission lines from decay of 44Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ∼700 kilometers per second, direct evidence of large-scale asymmetry in the explosion.</abstract><cop>Washington</cop><pub>American Association for the Advancement of Science</pub><doi>10.1126/science.aaa2259</doi><tpages>2</tpages></addata></record> |
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| source | Science Magazine; JSTOR Archive Collection A-Z Listing |
| subjects | Aluminum Asymmetry Emission Explosions Eyes Gamma rays Supernova 1987A Supernovae X-rays |
| title | 44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion |
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