MG13 - Talk detail |
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Participant |
Dainotti, Maria | |||||||
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Institution |
Jagellonian University - ulica Orla 171 - Cracovia - Malopolska - Poland | |||||||
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Session |
OC3 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Luminosity time correlation and possible usage for cosmology | |||||
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Abstract |
Gamma -ray bursts (GRBs) observed up to redshifts $z>9.3$ are fascinating objects to study due to their still unexplained relativistic outburst mechanisms and a possible use to test cosmological models. Our analysis of all GRB afterglows with known redshifts and definite plateau (100 GRBs) reveales not only that the luminosity $L^*_X(T_a)$ (called hereafter $L^*_a$) - break time $T^*_a$ correlation \cite{Dainotti2010} is confirmed with higher value of the Spearman correlation coefficient for the new updated sample, but also reveals its intrinsic nature throughout the analysis of the Efron \& Petrosian (1992) test. The above mentioned test is performed to check if there is redshift evolution in both the luminosity and time. |
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