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H 2 » H

Molecule or Atom?. H 2 » H. The Central Molecular Zone. H 2. H. H +. CMZ. Scoville and Sanders 1987. The great ocean of truth lay all undiscovered before us. Distribution of YSOs near the Galactic center. Takeshi Oka. DIB meeting, November 22, 2008.

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H 2 » H

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  1. Molecule or Atom? H2» H The Central Molecular Zone H2 H H+ CMZ Scoville and Sanders 1987

  2. The great ocean of truth lay all undiscovered before us

  3. Distribution of YSOs near the Galactic center Takeshi Oka DIB meeting, November 22, 2008

  4. Late-type stars are hopeless for IR spectroscopy οCet M5e-M9e R And S6-6e TX Psc C7.2 Ridgway, Carbon, Hall, Jewell, ApJS, 54, 177 (1984)

  5. Usable stars (hot, bright YSOs) are few H – K ≥ 1.4 Nagata, Hyland, Straw, Sato, Kawara, ApJ, 406, 501 (1993)

  6. Eight stars from the center to 30 pc east Oka, Geballe, Goto, Usuda, McCall, ApJ, 632, 882 (2005)

  7. H3+ everywhere

  8. The great ocean of truth lay all undiscovered before us

  9. Sources of stars Spitzer IRAC survey if the Galactic center 3.6 μm (L), 4.5 μm, 5.8 μm, 8.0 μm Ramírez, Arendt, Sellgren, Stolovy, Cotera, Smith, Yusef-Zadeh, ApJS 175, 147 (2008) Two micron all sky survey (2MASS) 1.25 μm (J), 1.65 μm (H), 2.16 μm (K) Skrutskie et al. ApJ, 131, 1163 (2006) - 1.2º < ℓ < 1.2 - 0.1º < b < 0.1º 1420 → > 106 → ~ 300 J – K ~ 5 K – L ~ 1.5 L < 7.5

  10. UIST medium resolution CO spectrum CO

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