Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...21116304m&link_type=abstract
American Astronomical Society, AAS Meeting #211, #163.04
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the 2D stellar kinematics, gas kinematics, line strengths, and stellar population analysis of four low-dispersion early-type galaxies taken with the Gemini Multi Object Spectrograph between May and June of 2005 with both Gemini North and Gemini South telescopes. The stellar and gas kinematics were derived using a direct fitting method developed by Emsellem et al. 2003. The line strengths were measured using the Lick indices. We connect the nuclear properties with their global counterparts from the wider field observations of the SAURON survey. The higher spatial and spectral resolution as well as the longer optical wavelength range of the GMOS data provide better constraints for age of the central stellar population as well as providing a detailed look at the central kinematic features like kinematically decoupled cores (KDCs), double disk structures, and counter rotating gas. The detailed population analysis of the sub-kiloparsec KDCs in the sample supports the evidence found in the SAURON sample for younger stellar populations in the disky sample.
Davies Roger L.
Krajnović Davor
Maier Millicent
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