Deprojection of luminosity functions of galaxies in the Coma cluster
| Autor: | Beijersbergen, M, Schaap, WE, van der Hulst, JM, Borgani, S, Mezzetti, M, Valdarnini, R |
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| Přispěvatelé: | Kapteyn Astronomical Institute |
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Zdroj: | TRACING COSMIC EVOLUTION WITH GALAXY CLUSTERS, PROCEEDINGS, 335-336 STARTPAGE=335;ENDPAGE=336;TITLE=TRACING COSMIC EVOLUTION WITH GALAXY CLUSTERS, PROCEEDINGS |
| Popis: | We present a simple analytic model to deproject 2-d luminosity functions (LF) of cluster galaxies; We apply this model to deproject the Us of the Coma cluster measured by Beijersbergen et al. 2001. We demonstrate that the shapes of the Us change after deprojection. The corrections are large enough to change the previously observed trend of increasing faint end slopes with increasing distance to the cluster center. The weighted U, B, and r band slopes of the deprojected Us show only a weak steepening with increasing projected cluster radius. It is therefore essential to correct Us for projection effects. |
| Databáze: | OpenAIRE |
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