Hα Rotation Curves of Star-Forming Galaxies at z ~ 2

Details Hα Rotation Curves of Star-Forming Galaxies at z ~ 2 Hα Rotation Curves of Star-Forming Galaxies at z ~ 2

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.3202e&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #32.02; Bulletin of the American Astronomical Society, Vol. 34, p.1153

Astronomy and Astrophysics

Astronomy

Scientific paper

We present observations of Hα emission in 16 star-forming galaxies at z ~ 2, obtained with the near-infrared spectrograph NIRSPEC on the Keck II telescope on Mauna Kea. About 40% of the objects exhibit evidence of velocity shear, in the form of a spatially extended and tilted emission line. Rotation curves for these objects reveal projected velocities of up to ~ 260 km s-1 at radii of up to 10 kpc, indicating that massive, rotating galaxies exist at this epoch. We acknowledge support from NSF grant AST-0070773 and the David and Lucile Packard Foundation.

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