H3+, in planetary Ionospheres:

Emission Spectrum

岡 武史

Department of Astronomy and Astrophysics,Departmen of Chemistry and The Enrico Fermi Institute, The University of Chicago

COE Symposium, Kobe University, November 17, 2003

Chemical Evolution of Star-forming Regions

E. F. van Dishoeck & G. A. BlakeAnnual Review of A & A 1998

H3+ Vibration-rotation spectrum

T. Oka, Phys. Rev. Lett. 45, 531 (1980)

Ortho

ParaPara

T = 30 K →

T = 1000 K

Interstellar H3+

Planetary H3+

Serendipitous Discovery of the 22→0 H3+ Emission

in the Auroral Region of Jupiter

Trafton, Lester, Thompson, ApJ 343 L73 (1989)

The Intense and Pure 2→0 H3+ Emission

Maillard, Drossart, Watson, Kim, Caldwell, ApJ 363 L37 (1990)

Background Free Emission !!

Geballe, Jagod, Oka

Metallic Hydrogen

Io Volcano

Oka, Revs. Modern Phys. 64 1141 (1992)

Magnetohydrodynamic plasma of Jupiter

H3+ aurora

H3+ aurora

Background Free Emission

Geballe, Jagod, Oka

Giant Planets

Saturn and Uranus

T. R. Geballe, M.-F. Jagod, & T. Oka,ApJ. 408, L109 (1993)

L. M. Trafton, et al.,ApJ. 405, 761 (1993)

Uranus

Uranus

Chemical Evolution of Star-forming Regions

E. F. van Dishoeck & G. A. BlakeAnnual Review of A & A 1998

Nature, 418, 57 (2002)

Nature, 418, 31 (2002)

Exo-planets

Active galactic nuclei

Gas giant protoplanet

Ubiquitous

H3+