Physics – Optics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.2402w&link_type=abstract
American Astronomical Society, AAS Meeting #211, #24.02; Bulletin of the American Astronomical Society, Vol. 39, p.774
Physics
Optics
Scientific paper
We present spatially resolved (0.1") spectra of Hα emission from high-redshift (z 1.5) star forming galaxies. These observations were obtained at Keck Observatory using the integral field spectrograph OSIRIS and the laser guide star adaptive optics (LGS AO) system. OSIRIS coupled with LGS-AO is able to measure a full two-dimensional mapping of Hα morphology and dynamics of galaxies at sub-kiloparsec scales. This study is aimed at identifying and analyzing rotationally supported objects in the early universe at a look back time ( 9 Gyr) close to the projected age of the Milky Way disk. We will discuss Hα kinematics, disk modeling, merger scenarios, mass distributions, and star formation rates for each galaxy. We will address the implications on galaxy formation with respect to our sample and other counterpart studies at higher redshifts.
Erb Dawn
Larkin Jason
Law Daniel
Shapley Alice
Steidel Charles C.
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