SIMBAD references

2000ApJS..131...47E - Astrophys. J., Suppl. Ser., 131, 47-70 (2000/November-0)

Gas-rich dwarfs from the PSS-II. III. H I profiles and dynamical masses.


Abstract (from CDS):

We present Arecibo neutral hydrogen data on a sample of optically selected dwarf galaxies. The sample ranges in H I mass from 106 to 5x109 M, with a mean of 7.9x108 M. Using estimated H I radii, the H I surface densities range from 0.6 to 20 M.pc–2, all well below the critical threshold for star formation (Kennicutt 1998ApJ...498..541K). M_H I_/L values of the LSB dwarfs range from 0.3 to 12 with a mean value of 2.0. Dynamical masses, calculated from the H I profile widths, range from 108 to 1011 M. There is a strong correlation between optical luminosity and dynamical mass for LSB dwarfs implying that the dark matter (whether baryonic or nonbaryonic) follows the detectable baryonic matter.

Abstract Copyright:

Journal keyword(s): Galaxies: Dwarf - Galaxies: Fundamental Parameters - Galaxies: ISM - Galaxies: Kinematics and Dynamics - Radio Lines: Galaxies

VizieR on-line data: <Available at CDS (J/ApJS/131/47): table1.dat table2.dat>

Nomenclature: Table 1: ESDO FFF-NN N=393.

Status at CDS:  

Simbad objects: 386

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