ISAAC IR spectroscopy of a galaxy at z=2.4

Details ISAAC IR spectroscopy of a galaxy at z=2.4 ISAAC IR spectroscopy of a galaxy at z=2.4

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20314601s&link_type=abstract

American Astronomical Society Meeting 203, #146.01; Bulletin of the American Astronomical Society, Vol. 36, p.589

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of VLT-ISAAC infrared spectroscopy in J, H, and K bands of a star forming galaxy at redshift z=2.4. We detect Hα and the doublet [OIII] emission lines. Both Hα and [OIII]λ 5007 show a double-peaked rotational profile, while the weaker [OIII]λ 4959 has a width consistent with them. The line width indicates a rotational velocity of ˜ 170 km s-1. We derived that the dynamical mass is > 1.4× 1010M&sun;. The stellar mass derived from the luminosity in the K band is ˜ 1.1 × 1010 M&sun;, consistent with the dynamical mass.

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