Do low surface brightness galaxies have dense disks?

Abstract

The disk masses of four low surface brightness galaxies (LSB) were estimated using marginal gravitational stability criterion and the stellar velocity dispersion data which were taken from Pizzella et al., 2008 [1]. The constructed mass models appear to be close to the models of maximal disk. The results show that the disks of LSB galaxies may be significantly more massive than it is usually accepted from their brightnesses. In this case their surface densities and masses appear to be rather typical for normal spirals. Otherwise, unlike the disks of many spiral galaxies, the LSB disks are dynamically overheated.

14 pages, 10 figures, submitted to Astronomy Reports

References in corpus (5)

• Dark and Baryonic Matter in Bright Spiral Galaxies: II. Radial Distributions for 34 Galaxies
• GALEX observations of Low Surface Brightness Galaxies: UV color and star formation efficiency
• HI Imaging Observations of Superthin Galaxies. II. IC2233 and the Blue Compact Dwarf NGC2537
• Structure and dynamics of galaxies with a low surface brightness disc. I. The stellar and ionised-gas kinematics
• Structural Parameters of Stellar Disks from 2MASS Images of Edge-on Galaxies

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