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Table · dataset · 2004

Catalog of high and low SB disk galaxies

Listed in IVOA Registry (Virtual Observatory)

We have compiled and homogenized a sample of high and low SB disk galaxies with available photometry in the B and K bands, velocity line-widths and HI integral fluxes.

Description

Several parameters that trace the luminous, baryonic and dark matter contents were inferred. We investigated how these parameters do vary with different galaxy properties, and confronted the results with predictions of galaxy evolutionary models in the context of the {Lambda} Cold Dark Matter (LCDM) cosmogony.

The fractions of dark, baryonic and luminous matter inside disk sizes (for observations and models) depend mainly on the disk surface density (or brightness). We have not found significant correlations of these fractions on galaxy scale or luminosity, contrary to what has been reported in previous works, based on the analysis of rotation curve shapes. We discuss this difference and state the importance to solve the controversy.

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The broad agreement between the models and observations presented here favors the LCDM scenario. However, the excess of dark matter inside the optical region of disk galaxies remains as the main difficulty.

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Where it is published

Documentation and papers

Catalogue records · 2

Topics

Stated by source
Optical
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/a+a/412/63311 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0