H-alpha Velocity Fields of Normal Spiral Disks
classification
🌌 astro-ph
keywords
spiralanglesdisksfieldsh-alphainclinationsmeasuredposition
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We present H-alpha velocity fields for a sample of nearly face--on spiral galaxies observed with DensePak on the WIYN telescope. We combine kinematic inclinations and position angles measured from these data with photometric inclinations and position angles measured from I-band images to show that spiral disks are intrinsically non-circular.
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