Search Publications
The spectral scalings of magnetic fluctuations upstream and downstream of the Venusian bow shock
Zhang, T. L.; Chen, Y. Q.; Wang, G. Q. +2 more
We statistically investigate the spectral scalings of magnetic fluctuations at the upstream and downstream regions near the Venusian bow shock and perform a differentiation by shock geometry. Based on the Venus Express data, 115 quasi-parallel (
An uppermost haze layer above 100 km found over Venus by the SOIR instrument onboard Venus Express
Vandaele, Ann Carine; Robert, Séverine; Mahieux, Arnaud +3 more
The Solar Occultation in the InfraRed (SOIR) instrument onboard Venus Express was designed to measure the Venusian atmospheric transmission at high altitudes (65–220 km) in the infrared range (2.2–4.3 µm) with a high spectral resolution. In this work, we investigate the optical properties of Venus's haze layer above 90 km using SOIR solar oc…
Mean winds at the cloud top of Venus obtained from two-wavelength UV imaging by Akatsuki
Imamura, Takeshi; Takagi, Masahiro; Yamazaki, Atsushi +9 more
Venus is covered with thick clouds. Ultraviolet (UV) images at 0.3–0.4 microns show detailed cloud features at the cloud-top level at about 70 km, which are created by an unknown UV-absorbing substance. Images acquired in this wavelength range have traditionally been used to measure winds at the cloud top. In this study, we report low-latitude win…
Initial products of Akatsuki 1-µm camera
Imamura, Takeshi; Ando, Hiroki; Ueno, Munetaka +25 more
The status and initial products of the 1-µm camera onboard the Akatsuki mission to Venus are presented. After the successful retrial of Venus' orbit insertion on Dec. 2015 (5 years after the failure in Dec. 2010), and after a long cruise under intense radiation, damage in the detector seems small and fortunately insignificant in the final qu…
Statistical investigation on the power-law behavior of magnetic fluctuations in the Venusian magnetosheath
Zhang, Tielong; Narita, Yasuhito; Schmid, Daniel +4 more
The present work aims to develop a better understanding of wave and turbulence processes in the planetary magnetosheath region. We study the plasma conditions (temperature, flow velocity, and magnetic field), the low-frequency wave properties, and the energy spectra for magnetic field fluctuations in the Venus magnetosheath. We use the magnetic fi…