A CROSS-CHECK FOR H0 FROM LYMAN- α FOREST AND BARYON ACOUSTIC OSCILLATIONS
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2016
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| _version_ | 1876445089760280576 |
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| author | V. C. Busti |
| author_facet | V. C. Busti |
| contents | A CROSS-CHECK FOR H0 FROM LYMAN- α FOREST AND BARYON ACOUSTIC OSCILLATIONS V. C. Busti R. N. Guimarães J. A. S. Lima Física, Astronomía y Matemáticas distance scale intergalactic medium Cosmological parameters A new method is proposed to infer the Hubble constant H0 through the observed mean transmitted flux from high-redshift quasars and the baryon acoustic oscillations (BAOs). A semi-analytical model for the cosmological-independent volume density distribution function was adopted; it allowed us to obtain constraints on the cosmological parameters once a moderate knowledge of the Inter Galactic Medium (IGM) parameters is assumed. Our analysis, based on two different samples of Lyman-α forest and the BAO measurement, restricts (h, Ωm) to the intervals 0.19 ≤ Ωm ≤ 0.23 and 0.53 ≤ h ≤ 0.82 (1σ). Although the constraints are weaker compared with other estimates, we point out that, with a bigger sample and a better knowledge of the IGM, this method could provide complementary results to measure the Hubble constant independently of the cosmic distance ladder. 2016 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57146052001 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.1 Vol.52 |
| format | Artículo científico |
| id | redalyc_57146052001 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | A CROSS-CHECK FOR H0 FROM LYMAN- α FOREST AND BARYON ACOUSTIC OSCILLATIONS V. C. Busti Física, Astronomía y Matemáticas distance scale intergalactic medium Cosmological parameters A CROSS-CHECK FOR H0 FROM LYMAN- α FOREST AND BARYON ACOUSTIC OSCILLATIONS V. C. Busti R. N. Guimarães J. A. S. Lima Física, Astronomía y Matemáticas distance scale intergalactic medium Cosmological parameters A new method is proposed to infer the Hubble constant H0 through the observed mean transmitted flux from high-redshift quasars and the baryon acoustic oscillations (BAOs). A semi-analytical model for the cosmological-independent volume density distribution function was adopted; it allowed us to obtain constraints on the cosmological parameters once a moderate knowledge of the Inter Galactic Medium (IGM) parameters is assumed. Our analysis, based on two different samples of Lyman-α forest and the BAO measurement, restricts (h, Ωm) to the intervals 0.19 ≤ Ωm ≤ 0.23 and 0.53 ≤ h ≤ 0.82 (1σ). Although the constraints are weaker compared with other estimates, we point out that, with a bigger sample and a better knowledge of the IGM, this method could provide complementary results to measure the Hubble constant independently of the cosmic distance ladder. 2016 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57146052001 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.1 Vol.52 |
| title | A CROSS-CHECK FOR H0 FROM LYMAN- α FOREST AND BARYON ACOUSTIC OSCILLATIONS |
| topic | Física, Astronomía y Matemáticas distance scale intergalactic medium Cosmological parameters |
| url | https://www.redalyc.org/articulo.oa?id=57146052001 |