Space Positronium Detection by Radio Measurements

Details Space Positronium Detection by Radio Measurements Space Positronium Detection by Radio Measurements

1999-12-30

arxiv.org/abs/astro-ph/9912550v1

Astronomy and Astrophysics

Astrophysics

LaTex 2.09, 8 pages

Scientific paper

The possibility of positronium detection at radio wavelengths is investigated in detail. For orthopositronium, the fine structure lines of the n = 2 level (1.62 cm, 2.30 cm and 3.48 cm) may be probably detected by radiotelescopes of next generations with the sensitivity around 1 microJansky. The spin-flip line of the ground state (0.147 cm) may be observed from sources with a narrow annihilation line by modern telescopes with the sensitivity around 10 microJansky. In the fine structure and spin-flip lines a maser effect is produced. The expected radio fluxes in the spin-flip line can reach detected limits for certain source geometries and optimal physical conditions inside the source.

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