Galactic Halo Formation and the Evolution of Bias
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2001
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| _version_ | 1876448391682064384 |
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| author | Pedro Colín |
| author_facet | Pedro Colín |
| contents | Galactic Halo Formation and the Evolution of Bias Pedro Colín Anatoly A. Klypin Andrey V. Kravtsov Alexei M. Khokhlov Física, Astronomía y Matemáticas We study the evolution of bias in four cosmological models (LambdaCDM, OCDM, tauCDM, and SCDM). The use of very high-resolution simulations, achieved with the AP3M code, produces dozens of galaxy-size halos inside groups. The groups look like real groups of galaxies. The bias decreases monotonically with redshift for all models and varies from 2 to 3 at z=3.0 on 1 Mpc/h scale for halos with a number density of 0.02 h3 Mpc-3. All models are anti-biased (b<1) at z<1. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101137 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) Vol.11 |
| format | Artículo científico |
| id | redalyc_57101137 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Galactic Halo Formation and the Evolution of Bias Pedro Colín Física, Astronomía y Matemáticas Galactic Halo Formation and the Evolution of Bias Pedro Colín Anatoly A. Klypin Andrey V. Kravtsov Alexei M. Khokhlov Física, Astronomía y Matemáticas We study the evolution of bias in four cosmological models (LambdaCDM, OCDM, tauCDM, and SCDM). The use of very high-resolution simulations, achieved with the AP3M code, produces dozens of galaxy-size halos inside groups. The groups look like real groups of galaxies. The bias decreases monotonically with redshift for all models and varies from 2 to 3 at z=3.0 on 1 Mpc/h scale for halos with a number density of 0.02 h3 Mpc-3. All models are anti-biased (b<1) at z<1. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101137 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) Vol.11 |
| title | Galactic Halo Formation and the Evolution of Bias |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=57101137 |