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Published 2007 | public
Book Section - Chapter

3D Kinematics of High-z Galaxies as Seen Through the Gravitational Telescope

Abstract

The study of the physical properties of high-redshift galaxies has become one of the major goals of extragalactic astronomy. In particular the massassembly histories of galaxies have been the focus of many studies at redshifts 1 to 3. In the purpose of probing the dynamics of intermediate and high-redshift galaxies, we have designed a research program to carry out a near-infrared spectroscopic follow up of spatially resolved distant galaxies. Here, we present the results for A370-A5 (z=1.341), an arc behind the lens cluster Abell 370 (z=0.374), observed in the case of science verification programme of SINFONI/VLT. The natural magni fication due to massive galaxy clusters allows to spatially resolve and constrain the dynamics of young star forming galaxies 1 to 3 magnitudes fainter than those selected in blank fields. Thus, the study of lensed galaxies allows to probe a low mass regime of galaxies not accessible in standard observation. In this particular case, we found that the gas distribution and kinematics are consistent with a bipolar outflow with a range of velocities of v ~ 100km/s.

Additional Information

© 2007 Springer-Verlag Berlin Heidelberg. We are very grateful to the VLT Obs. for accepting this programme for SINFONI Science Verification Time. This work was supported by the Marie Curie Research Training Network Euro3D; contract No. HPRNCT-2002-00305. J-P. Kneib thanks support from CNRS and Caltech.

Additional details

Created:
August 22, 2023
Modified:
January 14, 2024