SparsePak Observations of Diffuse Ionized Gas Halo Kinematics in NGC 891
arXiv:astro-ph/0508559 · doi:10.1007/978-1-4020-5573-7_49
Abstract
We present WIYN SparsePak observations of the diffuse ionized gas (DIG) halo of NGC 891. Preliminary results of an analysis of the halo velocity field reveal a clear gradient of the azimuthal velocity with z which agrees with results for the neutral gas. The magnitude of the gradient has been determined, using two independent methods, to be approximately 15 km/s/kpc.
4 pages, 3 figures; to appear in the proceedings of the Island Universes conference held in Terschelling, Netherlands, July 2005, ed. R. de Jong
References in corpus (3)
- SparsePak: A Formatted Fiber Field Unit for The WIYN Telescope Bench Spectrograph. I. Design, Construction, and Calibration
- Kinematics of Diffuse Ionized Gas Halos: A Ballistic Model of Halo Rotation
- SparsePak: A Formatted Fiber Field-Unit for The WIYN Telescope Bench Spectrograph. II. On-Sky Performance