The Quest for New Correlations in the Realm of the Gamma-Ray Burst—Supernova Connection
Gamma-ray bursts (GRBs) are very energetic cosmological transients. Long GRBs are usually associated with Type Ib/c supernovae (SNe), and we refer to them as GRB-SNe. Since the associated SN for a given GRB is observed only at low redshift, a possible selection effect exists when we consider intrins...
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| Veröffentlicht in: | The Astrophysical journal 2022-10, Vol.938 (1), p.41 |
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| creator | Dainotti, M. G. Simone, B. De Islam, K. M. Kawaguchi, K. Moriya, T. J. Takiwaki, T. Tominaga, N. Gangopadhyay, A. |
| description | Gamma-ray bursts (GRBs) are very energetic cosmological transients. Long GRBs are usually associated with Type Ib/c supernovae (SNe), and we refer to them as GRB-SNe. Since the associated SN for a given GRB is observed only at low redshift, a possible selection effect exists when we consider intrinsically faint sources that cannot be observed at high redshift. Thus, it is important to explore the possible relationships between GRB and SN parameters after these have been corrected for astrophysical biases due to the instrumental selection effects and redshift evolution of the variables involved. So far, only GRB prompt emission properties have been checked against the SN Ib/c properties without considering the afterglow (AG). This work investigates the existence of relationships among GRBs’ prompt and AG and associated SN properties. We investigate 91 bidimensional correlations among the SN and GRB observables before and after their correction for selection biases and evolutionary effects. As a result of this investigation, we find hints of a new correlation with a Pearson correlation coefficient >0.50 and a probability of being drawn by chance |
| doi_str_mv | 10.3847/1538-4357/ac8b77 |
| format | Article |
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G. ; Simone, B. De ; Islam, K. M. ; Kawaguchi, K. ; Moriya, T. J. ; Takiwaki, T. ; Tominaga, N. ; Gangopadhyay, A.</creator><creatorcontrib>Dainotti, M. G. ; Simone, B. De ; Islam, K. M. ; Kawaguchi, K. ; Moriya, T. J. ; Takiwaki, T. ; Tominaga, N. ; Gangopadhyay, A. ; US Department of Energy (USDOE), Washington, DC (United States). Office of WDTS</creatorcontrib><description>Gamma-ray bursts (GRBs) are very energetic cosmological transients. Long GRBs are usually associated with Type Ib/c supernovae (SNe), and we refer to them as GRB-SNe. Since the associated SN for a given GRB is observed only at low redshift, a possible selection effect exists when we consider intrinsically faint sources that cannot be observed at high redshift. Thus, it is important to explore the possible relationships between GRB and SN parameters after these have been corrected for astrophysical biases due to the instrumental selection effects and redshift evolution of the variables involved. So far, only GRB prompt emission properties have been checked against the SN Ib/c properties without considering the afterglow (AG). This work investigates the existence of relationships among GRBs’ prompt and AG and associated SN properties. We investigate 91 bidimensional correlations among the SN and GRB observables before and after their correction for selection biases and evolutionary effects. As a result of this investigation, we find hints of a new correlation with a Pearson correlation coefficient >0.50 and a probability of being drawn by chance <0.05. This correlation is between the luminosity at the end of the GRB optical plateau emission and the rest-frame peak time of the SN. According to this relation, the brightest optical plateaus are accompanied by the largest peak times. This correlation is corrected for selection biases and redshift evolution and may provide new constraints for the astrophysical models associated with the GRB-SN connection.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/ac8b77</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>Afterglows ; Astronomical models ; Astronomy & Astrophysics ; Astrophysical models ; Astrophysics ; Constraint modelling ; Core-collapse supernovae ; Correlation coefficient ; Correlation coefficients ; Emission ; Evolution ; Gamma ray astronomy ; Gamma ray bursts ; Gamma rays ; Luminosity ; Plateaus ; Red shift ; Supernova ; Supernovae</subject><ispartof>The Astrophysical journal, 2022-10, Vol.938 (1), p.41</ispartof><rights>2022. The Author(s). Published by the American Astronomical Society.</rights><rights>2022. The Author(s). 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| subjects | Afterglows Astronomical models Astronomy & Astrophysics Astrophysical models Astrophysics Constraint modelling Core-collapse supernovae Correlation coefficient Correlation coefficients Emission Evolution Gamma ray astronomy Gamma ray bursts Gamma rays Luminosity Plateaus Red shift Supernova Supernovae |
| title | The Quest for New Correlations in the Realm of the Gamma-Ray Burst—Supernova Connection |
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