Collisions with electrons from several sources are common throughout planetary
atmospheres. While in most circumstances direct electron impact is less significant than …

The oxygen emission at 557.7 nm is a ubiquitous component of the spectrum of the
terrestrial polar aurora and the reason for its usual green colour. It is also observed as a thin …

Much of what we know about the atmospheres of the planets and other bodies in the solar
system comes from detection of photons over a wide wavelength range, from X-rays to radio …

Abstract The Trace Gas Orbiter has been orbiting Mars since 2016 with the Nadir and
Occultation for MArs Discovery (NOMAD) UltraViolet and Visible Spectrometer (UVIS) …

One of the objectives of spectrometers onboard space missions is to retrieve atmospheric
parameters (notably density, composition and temperature). To fulfill this objective …

The UV spectrometer experiment SPICAM onboard ESA Mars Express has been orbiting
Mars since December 2003. We present here some comparisons between airglow data that …

We present a study of the three forbidden oxygen lines [OI] located in the optical region–ie,
5577.339 Å (the green line), 6300.304 Å and 6363.776 Å (the two red lines)–in order to …

The O (1S) metastable atoms can radiatively relax by emitting airglow at 557.7 and 297.2
nm. The latter one has been observed with the Imaging Ultraviolet Spectrograph onboard …

A new type of Martian aurora, characterized by an extended spatial distribution, an altitude
lower than the discrete aurora and electron precipitation up to 200 keV has been observed …

We present the retrieved volume emission rates (VERs) from the airglow of both the daytime
and twilight O 2 (1 Σ) band and O 2 (1 Δ) band emissions in the mesosphere and lower …