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http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/145| Constraining the parameter space of the dark energy equation of state using alternative cosmic tracers | |
| RICARDO CHAVEZ MURILLO | |
| ROBERTO GIOVANNI TERLEVICH AFONSO ELENA KIRILOVSKY TERLEVICH EMMANUIL MANOLIS PLIONIS LOUKAKI | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Dark energy equations HII galaxies Star formation Hubble constant | |
| We propose to use H II galaxies to trace the redshift-distance relation, by means of their L(Hβ) - δ correlation, in an attempt to constrain the dark energy equation of state parameter solution space, as an alternative to the cosmological use of type Ia supernovae. In order to use effectively high redshift H II galaxies as probes of the dark energy equation of state parameter, we must reassess the L(Hβ) - δ distance estimator, minimising the observational uncertainties and taking care of the possible associated systematics, such as stellar age, gas metallicity, reddening, environment and morphology. For a sample of 128 local (0:02 ≲ z ≲ 0:2) compact H II galaxies with high equivalent widths of their Balmer emission lines we obtained ionised gas velocity dispersion from high S/N, high-dispersion spectroscopy (Subaru-HDS and ESO VLT-UVES) and integrated Hβ fluxes from low dispersion wide aperture spectrophotometry. | |
| Instituto Nacional de Astrofísica, Óptica y Electrónica | |
| 2014-10 | |
| Tesis de doctorado | |
| Inglés | |
| Estudiantes Investigadores Público en general | |
| Chavez-Murillo R. | |
| ASTRONOMÍA Y ASTROFÍSICA | |
| Versión aceptada | |
| acceptedVersion - Versión aceptada | |
| Aparece en las colecciones: | Doctorado en Astrofísica |
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| ChavezMuR.pdf | 16.72 MB | Adobe PDF | Visualizar/Abrir |