Header

UZH-Logo

Maintenance Infos

Secondary infall model and dark matter scaling relations in intermediate-redshift early-type galaxies


Cardone, V F; Del Popolo, A; Tortora, C; Napolitano, N R (2011). Secondary infall model and dark matter scaling relations in intermediate-redshift early-type galaxies. Monthly Notices of the Royal Astronomical Society, 416(3):1822-1835.

Abstract

Scaling relations among dark matter (DM) and stellar quantities are a valuable tool to constrain formation scenarios and the evolution of galactic structures. However, most of the DM properties are actually not directly measured, but derived through model-dependent mass-mapping procedures. It is therefore crucial to adopt theoretically and observationally well founded models. We use here an updated version of the secondary infall model (SIM) to predict the halo density profile, taking into account the effects of angular momentum, dissipative friction and baryons collapse. The resulting family of halo profiles depends only on one parameter, the virial mass, and nicely fits the projected mass and aperture velocity dispersion of a sample of intermediate redshift lens galaxies. We derive DM-related quantities (namely the column density and the Newtonian acceleration) and investigate their correlations with stellar mass, luminosity, effective radius and virial mass.

Abstract

Scaling relations among dark matter (DM) and stellar quantities are a valuable tool to constrain formation scenarios and the evolution of galactic structures. However, most of the DM properties are actually not directly measured, but derived through model-dependent mass-mapping procedures. It is therefore crucial to adopt theoretically and observationally well founded models. We use here an updated version of the secondary infall model (SIM) to predict the halo density profile, taking into account the effects of angular momentum, dissipative friction and baryons collapse. The resulting family of halo profiles depends only on one parameter, the virial mass, and nicely fits the projected mass and aperture velocity dispersion of a sample of intermediate redshift lens galaxies. We derive DM-related quantities (namely the column density and the Newtonian acceleration) and investigate their correlations with stellar mass, luminosity, effective radius and virial mass.

Statistics

Citations

Dimensions.ai Metrics
45 citations in Web of Science®
45 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

97 downloads since deposited on 18 Feb 2012
7 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Astronomy and Astrophysics
Physical Sciences > Space and Planetary Science
Language:English
Date:September 2011
Deposited On:18 Feb 2012 16:35
Last Modified:18 Jul 2024 03:39
Publisher:Wiley-Blackwell
ISSN:0035-8711 (P) 1365-2966 (E)
Additional Information:The definitive version is available at www3.interscience.wiley.com
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1111/j.1365-2966.2011.19162.x
Related URLs:http://arxiv.org/abs/1106.0364
  • Content: Accepted Version
  • Content: Published Version
  • Language: English
  • Description: Nationallizenz 142-005