High-Resolution H I Observations of the Galaxy NGC 404: A Dwarf S0 with Abundant Interstellar Gas

@article{Rio2004HighResolutionHI,
  title={High-Resolution H I Observations of the Galaxy NGC 404: A Dwarf S0 with Abundant Interstellar Gas},
  author={M. Rio and E. Brinks and J. C. Inaoe and Puebla and Mexico. and Upaep and Iac and Tenerife and Spain.},
  journal={The Astronomical Journal},
  year={2004},
  volume={128},
  pages={89-102}
}
As part of a detailed study of the gas content in a sample of early-type galaxies, we present 21 cm H I line maps of the S0 galaxy NGC 404 at a spatial resolution of 152' × 144 (α × δ) and a velocity resolution of 2.6 km s-1. The H I has been traced out to a radius R ~ 8R25 or 48 disk scale lengths, making it one of the largest H I extents reported (800'' or 12.6 kpc at the assumed distance of 3.3 Mpc). Approximately 75% of the H I resides in a doughnut, which is seen close to face-on with… Expand
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