Atomic Emission in Th• Ultraviolet Nightglow

Spectrum of the Extreme Ultraviolet Nightglow as Measured by Eurd

After 2 years of operation onboard the Spanish satellite MINISAT, EURD has achieved an unprecedented success in the observation of the terrestrial nightglow in the EUV, covering a range of ∼ 350 − 1100 Å. EURD has provided a total of more than 543 hours of integration in the long wavelength spectrometer and more than 898 hours in the short wavelength one, allowing the achievement of the most de...

Utilization of Emission in the Vacuum Ultraviolet Spectral Region for th e Determination of Boron in Steel Samples by Inductively Coupled Plas ma Atomic Emission Spectrometry

Observations of OI 557.7 nm nightglow at Kolhapur (17 N), India

Ground-based nightglow observations of the atomic oxygen green line at 557.7 nm have been carried out at a low latitude station Kolhapur (17 N), India, during November 2003–April 2004 and December 2004–May 2005. The nocturnal behaviour of OI 557.7 nm intensity and a comparative study with simultaneous OH Meinel band temperature measurements has been presented. OI 557.7 nm intensity and OH tempe...

First observations from a CCD all-sky spectrograph at Barentsburg (Spitsbergen)

A digital CCD all-sky spectrograph was made by the Polar Geophysical Institute (PGI) to support IPY activity in auroral research. The device was tested at the Barentsburg observatory of PGI during the winter season of 2005– 2006. The spectrograph is based on a cooled CCD and a transmission grating. The main features of this spectrograph are: a wide field of view (∼180), a wide spectral range (3...

Jupiter's nightside airglow and aurora.

Observations of Jupiter's nightside airglow (nightglow) and aurora obtained during the flyby of the New Horizons spacecraft show an unexpected lack of ultraviolet nightglow emissions, in contrast to the case during the Voyager flybys in 1979. The flux and average energy of precipitating electrons generally decrease with increasing local time across the nightside, consistent with a possible sour...