Two Dimensional Velocity Fields of Low Surface Brightness Galaxies

Rachel Kuzio de Naray; Stacy S. McGaugh; W. J. G. de Blok; Albert Bosma

doi:10.1063/1.2348022

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arXiv · astro-ph/0509683

Two Dimensional Velocity Fields of Low Surface Brightness Galaxies

Rachel Kuzio de Naray·Stacy S. McGaugh·W. J. G. de Blok·Albert Bosma

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Abstract

We present high resolution two dimensional velocity fields from integral field spectroscopy along with derived rotation curves for nine low surface brightness galaxies. This is a positive step forward in terms of both data quality and number of objects studied. We fit NFW and pseudo-isothermal halo models to the observations. We find that the pseudo-isothermal halo better represents the data in most cases than the NFW halo, as the resulting concentrations are lower than would be expected for LCDM.

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Rachel Kuzio de Naray, Stacy S. McGaugh, W. J. G. de Blok, Albert Bosma. 2005-09-22. Two Dimensional Velocity Fields of Low Surface Brightness Galaxies. https://doi.org/10.1063/1.2348022

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