HI Observations of Flat Galaxies

Details HI Observations of Flat Galaxies HI Observations of Flat Galaxies

2005-10-09

arxiv.org/abs/astro-ph/0510248v1

Astron.Lett.31:501-514,2005; Pisma Astron.Zh.31:563,2005

Astronomy and Astrophysics

Astrophysics

24 pages, 7 figures

Scientific paper

10.1134/1.2007027

We present the HI observations of 94 flat spiral galaxies from RFGC (the Revised Flat Galaxy Catalog) and 14 galaxies from 2MFGC (the 2MASS selected Flat Galaxy Catalog) performed with the 100-m radio telescope in Effelsberg (Germany). HI fluxes, heliocentric radial velocities, and HI line widths are given for 65 detected galaxies. We present a mosaic of HI profiles. We calculated some of the global parameters of the galaxies and analyzed the linear correlations between them. The ratios of the total (indicative) masses of the galaxies to their luminosities lie within the range 0.4 with a mean of 3.8 ($M_{\sun}/L_{\sun}$), and the mean mass fraction of neutral hydrogen is 13%. Upper limits are given for the radio fluxes from 43 undetected galaxies.

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