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NIR Spectroscopy at Gemini South

NIR Spectroscopy at Gemini South. Delivered November 2003. First Light January 2004. Most modes now available to community Versatile, sensitive 1-5um instrument Long slit: R=1800,6000,18000; 100” slit; 0.15” and 0.05” pixels

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NIR Spectroscopy at Gemini South

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  1. NIR Spectroscopy at Gemini South Valparaiso, Chile

  2. Delivered November 2003 Valparaiso, Chile

  3. First Light January 2004 • Most modes now available to community • Versatile, sensitive 1-5um instrument • Long slit: R=1800,6000,18000; 100” slit; 0.15” and 0.05” pixels • Cross-dispersed: Simultaneous JHK coverage at R=1800; select regions at R=6000 • IFU: 3x5” FOV; R=1800 and R=6000 Valparaiso, Chile

  4. Early Science • Brown Dwarf Search (JHK R=2000) • K. Luhman • Z=2 Galaxy (JHK R=2000) • P. van Dokkum and M. Kriek • HH120 (Long-slit J, R=6000) • J. Elias • Galactic Center in the IFU (R=6000) Valparaiso, Chile

  5. Cross-dispersed (XD) Mode 1.9-2.5um • Very popular mode in 2004B • R=2000 (shown) • Also R=6000 with reduced coverage • Blue end extends into optical red, with reduced transmission 1.1-1.5um 0.9-1.28um 0.8-1.09um 1.4-1.9um Valparaiso, Chile

  6. XD: R=2000 JHK • Confirmed Brown dwarf, OTS 44, M=9.5 • Observed Resolution 1800-2200 JHK • Displayed R=300 • OTS 7: H=15.9, 33mins on source (poor seeing) • OTS 44: H=15.4, 13min on source • Figure from Luhman 2004 (in press) Valparaiso, Chile

  7. XD: R=2000 JHK • z=2.22 non-active galaxy • K=18.9; 63 minutes on source • Figure by van Dokkum and Kriek (2004, in prep) Valparaiso, Chile

  8. Long Slit: R=6000 • Herbig-Haro outflow source (HH120) • Acquisition image Valparaiso, Chile

  9. Long Slit: R=6000 • Herbig-Haro outflow source (HH120) • Acquisition image Valparaiso, Chile

  10. Long Slit: R=6000 • Spatial, kinematic differences between [FeII] and H2 • J band; 27 minutes on source • Figure by Jay Elias Valparaiso, Chile

  11. Integral Field Unit (IFU) • Commissioning data of galactic center (IRS7) • 60 second raw exposure (no sky subtraction) • Strong velocity gradient in Br gamma • Figure by J. Allington-Smith Valparaiso, Chile

  12. High Resolution Near-IR Spectroscopy • GNIRS • R=18000 with the long camera and 0.1” slit • Phoenix • Long-term “visitor” instrument • R~50,0000 with 0.005*lambda coverage Valparaiso, Chile

  13. High Resolution Near-IR Spectroscopy Valparaiso, Chile

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