In order to verify the correlation between the disk circular velocity V_c and the central velocity dispersion of the spheroidal component sigma_c , we analyzed a sample of 12 low surface-brightness galaxies (LSBs). In previous works LSBs have been claimed to follow either a different linear or the same power-law relation with respect to high surface-brightness galaxies (HSBs). The galaxies studied in this work enable us to confirm that LSBs and HSBs follow two different linear V_c-sigma_c relations.
Kinematics of low surface-brightness galaxies
CARDULLO, ANDREA
;PIZZELLA, ALESSANDRO;CORSINI, ENRICO MARIA;DALLA BONTA', ELENA;BERTOLA, FRANCESCO
2007
Abstract
In order to verify the correlation between the disk circular velocity V_c and the central velocity dispersion of the spheroidal component sigma_c , we analyzed a sample of 12 low surface-brightness galaxies (LSBs). In previous works LSBs have been claimed to follow either a different linear or the same power-law relation with respect to high surface-brightness galaxies (HSBs). The galaxies studied in this work enable us to confirm that LSBs and HSBs follow two different linear V_c-sigma_c relations.
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