SUB-PHOTOSPHERIC, RADIATION-MEDIATED SHOCKS IN GAMMA-RAY BURSTS: MULTIPLE SHOCK EMISSION AND THE BAND SPECTRUM
We compute the time-integrated, thermal emission produced by a series of radiation-mediated shocks that emerge from the photosphere of a gamma-ray burst outflow. We show that for a sufficiently broad distribution of shock strengths, the overall shape of the time-integrated spectral energy distributi...
Gespeichert in:
| Veröffentlicht in: | The Astrophysical journal 2014-07, Vol.789 (2), p.1-6 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 6 |
|---|---|
| container_issue | 2 |
| container_start_page | 1 |
| container_title | The Astrophysical journal |
| container_volume | 789 |
| creator | Keren, Shai Levinson, Amir |
| description | We compute the time-integrated, thermal emission produced by a series of radiation-mediated shocks that emerge from the photosphere of a gamma-ray burst outflow. We show that for a sufficiently broad distribution of shock strengths, the overall shape of the time-integrated spectral energy distribution below the peak is a power law, vE sub(v) [is proportional to] v super([alpha]), with a slope of 1 < [alpha] < 2. A substructure in the spectral energy distribution (SED) can also be produced in this model for certain choices of the shock train distribution. In particular, we demonstrate that our model can reproduce the double-peak SED observed in some bursts, in events where a strong shock is followed by a sequence of sufficiently weaker ones. |
| doi_str_mv | 10.1088/0004-637X/789/2/128 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_22365664</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1709175054</sourcerecordid><originalsourceid>FETCH-LOGICAL-o249t-cc16e357a298755827164a2a8a1c0c76b09eaf431606b3fb639bc924d1e9af2c3</originalsourceid><addsrcrecordid>eNqNzk9PgzAYBvDGaOKcfgIvTbx4EOkfWlpvjOEgwiAUEj2RUkucmaDCvr9bZjx7ep83-T1vXgCuMbrHSAgXIeQ5nPrPri-kS1xMxAmYYUaF41Hmn4LZnzgHF-P4fliJlDPQq3rhFHFe5aqIozIJ72AZLJOgSvK1k0WHFC2hivPwScFkDVdBlgVOGbzARV2qSj3ArE6rpEijI4JRlii1L8NgvYRVHMHFIagiCquyzi7BWae3o736nXNQP0ZVGDtpvkrCIHUG4snJMQZzu39cEyl8xgTxMfc00UJjg4zPWySt7jyKOeIt7VpOZWsk8V6xlbojhs7BzfHuME6bZjSbyZo3M_S9NVNDCOWMc2-vbo_q83v42tlxaj42o7Hbre7tsBsb7GMhORNM_oMiiX2GmEd_APx9bX8</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1709175054</pqid></control><display><type>article</type><title>SUB-PHOTOSPHERIC, RADIATION-MEDIATED SHOCKS IN GAMMA-RAY BURSTS: MULTIPLE SHOCK EMISSION AND THE BAND SPECTRUM</title><source>IOP Publishing</source><source>Alma/SFX Local Collection</source><source>EZB Electronic Journals Library</source><creator>Keren, Shai ; Levinson, Amir</creator><creatorcontrib>Keren, Shai ; Levinson, Amir</creatorcontrib><description>We compute the time-integrated, thermal emission produced by a series of radiation-mediated shocks that emerge from the photosphere of a gamma-ray burst outflow. We show that for a sufficiently broad distribution of shock strengths, the overall shape of the time-integrated spectral energy distribution below the peak is a power law, vE sub(v) [is proportional to] v super([alpha]), with a slope of 1 < [alpha] < 2. A substructure in the spectral energy distribution (SED) can also be produced in this model for certain choices of the shock train distribution. In particular, we demonstrate that our model can reproduce the double-peak SED observed in some bursts, in events where a strong shock is followed by a sequence of sufficiently weaker ones.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1088/0004-637X/789/2/128</identifier><language>eng</language><publisher>United States</publisher><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; Band spectra ; COMPUTERIZED SIMULATION ; COSMIC GAMMA BURSTS ; DISTRIBUTION ; EMISSION ; ENERGY SPECTRA ; Gamma ray bursts ; PHOTOSPHERE ; RELATIVISTIC RANGE ; SHOCK WAVES ; Slopes ; Spectral energy distribution ; Substructures ; Thermal emission ; Trains</subject><ispartof>The Astrophysical journal, 2014-07, Vol.789 (2), p.1-6</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22365664$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Keren, Shai</creatorcontrib><creatorcontrib>Levinson, Amir</creatorcontrib><title>SUB-PHOTOSPHERIC, RADIATION-MEDIATED SHOCKS IN GAMMA-RAY BURSTS: MULTIPLE SHOCK EMISSION AND THE BAND SPECTRUM</title><title>The Astrophysical journal</title><description>We compute the time-integrated, thermal emission produced by a series of radiation-mediated shocks that emerge from the photosphere of a gamma-ray burst outflow. We show that for a sufficiently broad distribution of shock strengths, the overall shape of the time-integrated spectral energy distribution below the peak is a power law, vE sub(v) [is proportional to] v super([alpha]), with a slope of 1 < [alpha] < 2. A substructure in the spectral energy distribution (SED) can also be produced in this model for certain choices of the shock train distribution. In particular, we demonstrate that our model can reproduce the double-peak SED observed in some bursts, in events where a strong shock is followed by a sequence of sufficiently weaker ones.</description><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>Band spectra</subject><subject>COMPUTERIZED SIMULATION</subject><subject>COSMIC GAMMA BURSTS</subject><subject>DISTRIBUTION</subject><subject>EMISSION</subject><subject>ENERGY SPECTRA</subject><subject>Gamma ray bursts</subject><subject>PHOTOSPHERE</subject><subject>RELATIVISTIC RANGE</subject><subject>SHOCK WAVES</subject><subject>Slopes</subject><subject>Spectral energy distribution</subject><subject>Substructures</subject><subject>Thermal emission</subject><subject>Trains</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNzk9PgzAYBvDGaOKcfgIvTbx4EOkfWlpvjOEgwiAUEj2RUkucmaDCvr9bZjx7ep83-T1vXgCuMbrHSAgXIeQ5nPrPri-kS1xMxAmYYUaF41Hmn4LZnzgHF-P4fliJlDPQq3rhFHFe5aqIozIJ72AZLJOgSvK1k0WHFC2hivPwScFkDVdBlgVOGbzARV2qSj3ArE6rpEijI4JRlii1L8NgvYRVHMHFIagiCquyzi7BWae3o736nXNQP0ZVGDtpvkrCIHUG4snJMQZzu39cEyl8xgTxMfc00UJjg4zPWySt7jyKOeIt7VpOZWsk8V6xlbojhs7BzfHuME6bZjSbyZo3M_S9NVNDCOWMc2-vbo_q83v42tlxaj42o7Hbre7tsBsb7GMhORNM_oMiiX2GmEd_APx9bX8</recordid><startdate>20140710</startdate><enddate>20140710</enddate><creator>Keren, Shai</creator><creator>Levinson, Amir</creator><scope>7TG</scope><scope>KL.</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20140710</creationdate><title>SUB-PHOTOSPHERIC, RADIATION-MEDIATED SHOCKS IN GAMMA-RAY BURSTS: MULTIPLE SHOCK EMISSION AND THE BAND SPECTRUM</title><author>Keren, Shai ; Levinson, Amir</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-o249t-cc16e357a298755827164a2a8a1c0c76b09eaf431606b3fb639bc924d1e9af2c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>Band spectra</topic><topic>COMPUTERIZED SIMULATION</topic><topic>COSMIC GAMMA BURSTS</topic><topic>DISTRIBUTION</topic><topic>EMISSION</topic><topic>ENERGY SPECTRA</topic><topic>Gamma ray bursts</topic><topic>PHOTOSPHERE</topic><topic>RELATIVISTIC RANGE</topic><topic>SHOCK WAVES</topic><topic>Slopes</topic><topic>Spectral energy distribution</topic><topic>Substructures</topic><topic>Thermal emission</topic><topic>Trains</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Keren, Shai</creatorcontrib><creatorcontrib>Levinson, Amir</creatorcontrib><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Keren, Shai</au><au>Levinson, Amir</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>SUB-PHOTOSPHERIC, RADIATION-MEDIATED SHOCKS IN GAMMA-RAY BURSTS: MULTIPLE SHOCK EMISSION AND THE BAND SPECTRUM</atitle><jtitle>The Astrophysical journal</jtitle><date>2014-07-10</date><risdate>2014</risdate><volume>789</volume><issue>2</issue><spage>1</spage><epage>6</epage><pages>1-6</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We compute the time-integrated, thermal emission produced by a series of radiation-mediated shocks that emerge from the photosphere of a gamma-ray burst outflow. We show that for a sufficiently broad distribution of shock strengths, the overall shape of the time-integrated spectral energy distribution below the peak is a power law, vE sub(v) [is proportional to] v super([alpha]), with a slope of 1 < [alpha] < 2. A substructure in the spectral energy distribution (SED) can also be produced in this model for certain choices of the shock train distribution. In particular, we demonstrate that our model can reproduce the double-peak SED observed in some bursts, in events where a strong shock is followed by a sequence of sufficiently weaker ones.</abstract><cop>United States</cop><doi>10.1088/0004-637X/789/2/128</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 2014-07, Vol.789 (2), p.1-6 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_osti_scitechconnect_22365664 |
| source | IOP Publishing; Alma/SFX Local Collection; EZB Electronic Journals Library |
| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Band spectra COMPUTERIZED SIMULATION COSMIC GAMMA BURSTS DISTRIBUTION EMISSION ENERGY SPECTRA Gamma ray bursts PHOTOSPHERE RELATIVISTIC RANGE SHOCK WAVES Slopes Spectral energy distribution Substructures Thermal emission Trains |
| title | SUB-PHOTOSPHERIC, RADIATION-MEDIATED SHOCKS IN GAMMA-RAY BURSTS: MULTIPLE SHOCK EMISSION AND THE BAND SPECTRUM |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T10%3A47%3A54IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=SUB-PHOTOSPHERIC,%20RADIATION-MEDIATED%20SHOCKS%20IN%20GAMMA-RAY%20BURSTS:%20MULTIPLE%20SHOCK%20EMISSION%20AND%20THE%20BAND%20SPECTRUM&rft.jtitle=The%20Astrophysical%20journal&rft.au=Keren,%20Shai&rft.date=2014-07-10&rft.volume=789&rft.issue=2&rft.spage=1&rft.epage=6&rft.pages=1-6&rft.issn=0004-637X&rft.eissn=1538-4357&rft_id=info:doi/10.1088/0004-637X/789/2/128&rft_dat=%3Cproquest_osti_%3E1709175054%3C/proquest_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1709175054&rft_id=info:pmid/&rfr_iscdi=true |