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OSIRIS Spectroscopy of Supercompact UV Luminous Galaxies. Thiago S. Gonçalves Caltech. Caltech. MPA, Garching. Thiago S. Gonçalves Chris Martin Ted Wyder. Roderik Overzier. JHU. Columbia. Tim Heckman. Antara Basu-Zych David Schiminovich Matt O’Dowd. UVLGs: general characteristics.
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OSIRIS Spectroscopy of Supercompact UV Luminous Galaxies Thiago S. Gonçalves Caltech
Caltech MPA, Garching Thiago S. Gonçalves Chris Martin Ted Wyder Roderik Overzier JHU Columbia Tim Heckman Antara Basu-Zych David Schiminovich Matt O’Dowd
UVLGs: general characteristics • Heckman et al (2005), Hoopes et al. (2007) • Detected by GALEX in the FUV with • LFUV ≥ 2×1010 L, I1530 ≥ 109 L kpc-2 • Low dust attenuation, young populations (Basu-Zych et al. 2007) • Similar morphological indices to high- redshift LBGs
UVLG0926 • 2hr exposures • Pa-α emission line S/N map
Velocity map σ map
Velocity map σ map σ's similar to LBGs (Law et al. 2007)
Kinemetry (Krajnović et al, Shapiro et al)
Summary • Complementary data to understand UVLG dynamics: HST optical and IFU • Opportunity to study Lyman Break analogs at higher S/N ratios and spatial resolution • 4 more nights coming - so stay tuned!