Galaxy luminosity function: a new analytic expression
Fuente:
Redalyc
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Sociedade Brasileira de Física
2004
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1876459900114042880 |
|---|---|
| author | J. S. Alcaniz |
| author_facet | J. S. Alcaniz |
| contents | Galaxy luminosity function: a new analytic expression J. S. Alcaniz J. A. S. Lima Física, Astronomía y Matemáticas We propose a new analytic approximation for the luminosity function of galaxies. The suggested expressionbehaves like the Schechter function at the faint end (φ ∼ Lα) but departs considerably at the bright end(L >>L∗). We argue here that such a behavior may provide a better fit for the current observational data thandoes the Schechter function. Its practical interest is stressed by considering roughly the data set provided by theStromlo-APM redshift survey. Implications on the estimates of the matter density parameter from mass-to-lightratio are also briefly discussed. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434225 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.34 |
| format | Artículo científico |
| id | redalyc_46434225 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Galaxy luminosity function: a new analytic expression J. S. Alcaniz Física, Astronomía y Matemáticas Galaxy luminosity function: a new analytic expression J. S. Alcaniz J. A. S. Lima Física, Astronomía y Matemáticas We propose a new analytic approximation for the luminosity function of galaxies. The suggested expressionbehaves like the Schechter function at the faint end (φ ∼ Lα) but departs considerably at the bright end(L >>L∗). We argue here that such a behavior may provide a better fit for the current observational data thandoes the Schechter function. Its practical interest is stressed by considering roughly the data set provided by theStromlo-APM redshift survey. Implications on the estimates of the matter density parameter from mass-to-lightratio are also briefly discussed. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434225 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.34 |
| title | Galaxy luminosity function: a new analytic expression |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=46434225 |