The Fabry-Perot near-infrared spectrophotometer of the 182-cm Asiago telescope was used for absolute flux measurements of the neutral oxygen line at 8446 A in 22 positions across the surface of the Orion Nebula (M42). From the derived O I/H-beta ratios, starlight excitation appears to be the most efficient mechanism for explaining the unexpected strength of this line.
Orion Nebula - Fabry-Perot high resolution O I /8446 A/ mapping
BARBIERI, CESARE;
1979
Abstract
The Fabry-Perot near-infrared spectrophotometer of the 182-cm Asiago telescope was used for absolute flux measurements of the neutral oxygen line at 8446 A in 22 positions across the surface of the Orion Nebula (M42). From the derived O I/H-beta ratios, starlight excitation appears to be the most efficient mechanism for explaining the unexpected strength of this line.File in questo prodotto:
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