On the cosmological evolution of long gamma-ray burst properties
ABSTRACT We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. We find that even when accounting for conservative detector flux limits, there appears to be a significant corre...
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Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2019-10, Vol.488 (4), p.5823-5832 |
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creator | Lloyd-Ronning, Nicole M Aykutalp, Aycin Johnson, Jarrett L |
description | ABSTRACT
We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. We find that even when accounting for conservative detector flux limits, there appears to be a significant correlation between isotropic equivalent energy and redshift, suggesting cosmological evolution of the lGRB progenitor. Analysing a sub-sample of lGRBs with jet opening angle estimates, we find the beaming-corrected lGRB emitted energy does not correlate with redshift, but jet opening angle does. Additionally, we find a statistically significant anticorrelation between the intrinsic prompt duration and redshift, even when accounting for potential selection effects. We also find that, for a given redshift, isotropic energy is positively correlated with intrinsic prompt duration. None of these GRB properties appear to be correlated with galactic offset. From our selection-effect-corrected redshift distribution, we estimate a co-moving rate density for lGRBs, and compare this to the global cosmic star formation rate (SFR). We find the lGRB rate mildly exceeds the global star formation rate between a redshift of 3 and 5, and declines rapidly at redshifts above this (although we cannot constrain the lGRB rate above a redshift of about 6 due to sample incompleteness). We find the lGRB rate diverges significantly from the SFR at lower redshifts. We discuss both the correlations and lGRB rate density in terms of various lGRB progenitor models and their apparent preference for low-metallicity environments. |
doi_str_mv | 10.1093/mnras/stz2155 |
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We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. We find that even when accounting for conservative detector flux limits, there appears to be a significant correlation between isotropic equivalent energy and redshift, suggesting cosmological evolution of the lGRB progenitor. Analysing a sub-sample of lGRBs with jet opening angle estimates, we find the beaming-corrected lGRB emitted energy does not correlate with redshift, but jet opening angle does. Additionally, we find a statistically significant anticorrelation between the intrinsic prompt duration and redshift, even when accounting for potential selection effects. We also find that, for a given redshift, isotropic energy is positively correlated with intrinsic prompt duration. None of these GRB properties appear to be correlated with galactic offset. From our selection-effect-corrected redshift distribution, we estimate a co-moving rate density for lGRBs, and compare this to the global cosmic star formation rate (SFR). We find the lGRB rate mildly exceeds the global star formation rate between a redshift of 3 and 5, and declines rapidly at redshifts above this (although we cannot constrain the lGRB rate above a redshift of about 6 due to sample incompleteness). We find the lGRB rate diverges significantly from the SFR at lower redshifts. We discuss both the correlations and lGRB rate density in terms of various lGRB progenitor models and their apparent preference for low-metallicity environments.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/stz2155</identifier><language>eng</language><publisher>United Kingdom: Oxford University Press</publisher><subject>ASTRONOMY AND ASTROPHYSICS ; gamma-ray burst</subject><ispartof>Monthly notices of the Royal Astronomical Society, 2019-10, Vol.488 (4), p.5823-5832</ispartof><rights>2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-7f3127a6d1cd66da8a1bca28ba4991a9d3cbb0d3015622d1e056b9d0a7523dce3</citedby><cites>FETCH-LOGICAL-c363t-7f3127a6d1cd66da8a1bca28ba4991a9d3cbb0d3015622d1e056b9d0a7523dce3</cites><orcidid>0000-0003-1707-7998 ; 0000000317077998</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,1604,27924,27925</link.rule.ids><linktorsrc>$$Uhttps://dx.doi.org/10.1093/mnras/stz2155$$EView_record_in_Oxford_University_Press$$FView_record_in_$$GOxford_University_Press</linktorsrc><backlink>$$Uhttps://www.osti.gov/biblio/1557913$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Lloyd-Ronning, Nicole M</creatorcontrib><creatorcontrib>Aykutalp, Aycin</creatorcontrib><creatorcontrib>Johnson, Jarrett L</creatorcontrib><creatorcontrib>Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)</creatorcontrib><title>On the cosmological evolution of long gamma-ray burst properties</title><title>Monthly notices of the Royal Astronomical Society</title><description>ABSTRACT
We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. We find that even when accounting for conservative detector flux limits, there appears to be a significant correlation between isotropic equivalent energy and redshift, suggesting cosmological evolution of the lGRB progenitor. Analysing a sub-sample of lGRBs with jet opening angle estimates, we find the beaming-corrected lGRB emitted energy does not correlate with redshift, but jet opening angle does. Additionally, we find a statistically significant anticorrelation between the intrinsic prompt duration and redshift, even when accounting for potential selection effects. We also find that, for a given redshift, isotropic energy is positively correlated with intrinsic prompt duration. None of these GRB properties appear to be correlated with galactic offset. From our selection-effect-corrected redshift distribution, we estimate a co-moving rate density for lGRBs, and compare this to the global cosmic star formation rate (SFR). We find the lGRB rate mildly exceeds the global star formation rate between a redshift of 3 and 5, and declines rapidly at redshifts above this (although we cannot constrain the lGRB rate above a redshift of about 6 due to sample incompleteness). We find the lGRB rate diverges significantly from the SFR at lower redshifts. We discuss both the correlations and lGRB rate density in terms of various lGRB progenitor models and their apparent preference for low-metallicity environments.</description><subject>ASTRONOMY AND ASTROPHYSICS</subject><subject>gamma-ray burst</subject><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEURoMoWB9L98GVm9jcpMk0O6X4gkI3ug53kkw7MjMZklSov95qu3f1bQ4HvkPIDfB74EZO-yFhnubyLUCpEzIBqRUTRutTMuFcKjavAM7JRc6fnPOZFHpCHlYDLZtAXcx97OK6ddjR8BW7bWnjQGNDuzis6Rr7HlnCHa23KRc6pjiGVNqQr8hZg10O18e9JB_PT--LV7ZcvbwtHpfMSS0LqxoJokLtwXmtPc4RaodiXuPMGEDjpatr7iUHpYXwELjStfEcKyWkd0FektuDN-bS2uzaEtzGxWEIrtj938qA3EPsALkUc06hsWNqe0w7C9z-NrJ_jeyx0Z6_O0q34z_oD6nBanc</recordid><startdate>20191001</startdate><enddate>20191001</enddate><creator>Lloyd-Ronning, Nicole M</creator><creator>Aykutalp, Aycin</creator><creator>Johnson, Jarrett L</creator><general>Oxford University Press</general><general>Royal Astronomical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0003-1707-7998</orcidid><orcidid>https://orcid.org/0000000317077998</orcidid></search><sort><creationdate>20191001</creationdate><title>On the cosmological evolution of long gamma-ray burst properties</title><author>Lloyd-Ronning, Nicole M ; Aykutalp, Aycin ; Johnson, Jarrett L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-7f3127a6d1cd66da8a1bca28ba4991a9d3cbb0d3015622d1e056b9d0a7523dce3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>ASTRONOMY AND ASTROPHYSICS</topic><topic>gamma-ray burst</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lloyd-Ronning, Nicole M</creatorcontrib><creatorcontrib>Aykutalp, Aycin</creatorcontrib><creatorcontrib>Johnson, Jarrett L</creatorcontrib><creatorcontrib>Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lloyd-Ronning, Nicole M</au><au>Aykutalp, Aycin</au><au>Johnson, Jarrett L</au><aucorp>Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the cosmological evolution of long gamma-ray burst properties</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><date>2019-10-01</date><risdate>2019</risdate><volume>488</volume><issue>4</issue><spage>5823</spage><epage>5832</epage><pages>5823-5832</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>ABSTRACT
We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. We find that even when accounting for conservative detector flux limits, there appears to be a significant correlation between isotropic equivalent energy and redshift, suggesting cosmological evolution of the lGRB progenitor. Analysing a sub-sample of lGRBs with jet opening angle estimates, we find the beaming-corrected lGRB emitted energy does not correlate with redshift, but jet opening angle does. Additionally, we find a statistically significant anticorrelation between the intrinsic prompt duration and redshift, even when accounting for potential selection effects. We also find that, for a given redshift, isotropic energy is positively correlated with intrinsic prompt duration. None of these GRB properties appear to be correlated with galactic offset. From our selection-effect-corrected redshift distribution, we estimate a co-moving rate density for lGRBs, and compare this to the global cosmic star formation rate (SFR). We find the lGRB rate mildly exceeds the global star formation rate between a redshift of 3 and 5, and declines rapidly at redshifts above this (although we cannot constrain the lGRB rate above a redshift of about 6 due to sample incompleteness). We find the lGRB rate diverges significantly from the SFR at lower redshifts. We discuss both the correlations and lGRB rate density in terms of various lGRB progenitor models and their apparent preference for low-metallicity environments.</abstract><cop>United Kingdom</cop><pub>Oxford University Press</pub><doi>10.1093/mnras/stz2155</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-1707-7998</orcidid><orcidid>https://orcid.org/0000000317077998</orcidid></addata></record> |
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title | On the cosmological evolution of long gamma-ray burst properties |
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