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Kinematics of Diffuse Ionized Gas Halos
R. J. Rand
Existing long-slit spectral data for edge-on spiral galaxies suggesting that their Diffuse Ionized Gas (DIG) halos rotate slower than their underlying disks are summarized. An atte…
Kinematics of the Ionized Halo of NGC 5775
G. H. Heald, R. J. Rand, R. A. Benjamin +2
Studies of the kinematics of gaseous halos in some spiral galaxies have shown that the rotational velocity of the gas decreases with height above the midplane (z). This vertical ve…
Pattern Speeds of BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method
Richard J. Rand, John F. Wallin
We apply the Tremaine-Weinberg method of pattern speed determination to data cubes of CO emission in six spiral galaxies from the BIMA SONG survey each with an ISM dominated by mol…
The Pattern Speeds of M51, M83 and NGC 6946 Using CO and the Tremaine-Weinberg Method
P. Zimmer, R. J. Rand, J. T. McGraw
In spiral galaxies where the molecular phase dominates the ISM, the molecular gas as traced by CO emission will approximately obey the continuity equation on orbital timescales. Th…