MG15 - Talk detail |
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Participant |
Solis-Sanchez, Hugo | |||||||
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Institution |
Universidad de Costa Rica - Sede Rodrigo Facio - San Jose - San Jose - Costa Rica | |||||||
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Session |
DE1 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Cosmographic Analysis as framework to evalute cosmological models | |||||
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Abstract |
By using a cosmographic analysis of the redshift data of type Ia supernovae, we are able to get the expansion of the scale factor, obtaining the current values of the Hubble, deceleration, jerk and snap parameters. Our data is then used to compare the fitness of various proposed alternative cosmological models. Since our method assumes only the validity of general relativity at the cosmic scale, along with the isotropy and homogeneity of the universe, they are very useful for comparison between different cosmological mod- els, including the fitness of ΛCDM model. Our method is based on the order expansion of the scale factor present in the FRW metric and using a Monte Carlo integration to find the best fit order parameters of the scale factor to reproduce the observed data, we make use of parallel paradigm to improve the computational time behind the model. We find the known result an accelerated expansion of the universe. With access to better measurements of type Ia supernovae redshifts and more data, the cosmographic results will be significantly improved. |
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