TitleAsymmetry in High-Precision Global H i Profiles of Isolated Spiral Galaxies
AuthorsHaynes, Martha P.; Hogg, David E.; Maddalena, Ronald J.; Roberts, Morton S.; van Zee, Lies ...
Bibcode1998AJ....115...62H
AbstractNew high signal-to-noise ratio 21 cm H i line profiles have been obtained for 104 galaxies with the Green Bank 43 m telescope. The primary sample is composed of isolated spirals with no known optical companions within a 1 deg radius and a median ratio of optical diameter to beamwidth of 0.17. An effort was made to ensure linearity of baseline fitting and precise flux density calibration to better than 5%. Two quantit ...
More infoADS ↗
ObjectsSearch NED ↙