57 citations · 172 across the 10 of their papers we have counts for
10 papers
Strong depletion of C in CO induced by photolysis of CO in the Martian atmosphere calculated by a photochemical model
Tatsuya Yoshida, Shohei Aoki, Yuichiro Ueno +7
The isotopic signature of atmospheric carbon offers a unique tracer for the history of the Martian atmosphere and the origin of organic matter on Mars. Photolysis of CO is kn…
Photochemical and RadiatiOn Transport model for Extensive USe (PROTEUS)
Yuki Nakamura, Naoki Terada, Shungo Koyama +10
We introduce a new flexible one-dimensional photochemical model named Photochemical and RadiatiOn Transport model for Extensive USe (PROTEUS), which consists of a Python graphical…
Modeling of geocoronal solar wind charge exchange events detected with Suzaku
Daiki Ishi, Kumi Ishikawa, Yoshizumi Miyoshi +2
A model of geocoronal solar wind charge exchange (SWCX) emission was built and compared to five Suzaku detections of bright geocoronal SWCX events. An exospheric neutral hydrogen d…
Survival of Terrestrial N2-O2 Atmospheres in Violent XUV Environments through Efficient Atomic Line Radiative Cooling
Akifumi Nakayama, Masahiro Ikoma, Naoki Terada
Atmospheres play a crucial role in planetary habitability. Around M dwarfs and young Sun-like stars, planets receiving the same insolation as the present-day Earth are exposed to i…
Less effective hydrodynamic escape of H-HO atmospheres on terrestrial planets orbiting pre-main sequence M dwarfs
Tatsuya Yoshida, Naoki Terada, Masahiro Ikoma +1
Terrestrial planets currently in the habitable zones around M dwarfs likely experienced a long-term runaway greenhouse condition because of a slow decline in host-stellar luminosit…
Suzaku detection of enigmatic geocoronal solar wind charge exchange event associated with coronal mass ejection
Daiki Ishi, Kumi Ishikawa, Masaki Numazawa +5
Suzaku detected an enhancement of soft X-ray background associated with solar eruptions on 2013 April 14-15. The solar eruptions were accompanied by an M6.5 solar flare and a coron…
X-ray Observation of Mars with Suzaku at Solar Minimun
Kumi Ishikawa, Yuichiro Ezoe, Takaya Ohashi +2
Mars was observed in X-rays during April 3-5 2008 for 82 ksec with the Japanese Suzaku observatory. Mars has been known to emit X-rays via the scattering of solar X-rays and via th…
Enhancement of Terrestrial Diffuse X-ray Emission Associated With Coronal Mass Ejection and Geomagnetic Storm
Yuichiro Ezoe, Yoshizumi Miyoshi, Hiroshi Yoshitake +4
We present an analysis of a Suzaku observation taken during the geomagnetic storm of 2005 August 23-24. We found time variation of diffuse soft X-ray emission when a coronal mass e…
Time Variability of the Geocoronal Solar Wind Charge Exchange in the Direction of the Celestial Equator
Yuichiro Ezoe, Ken Ebisawa, Noriko Y. Yamasaki +5
We report the detection of a time variable OVII line emission in a deep 100 ks Suzaku X-ray Imaging Spectrometer spectrum of the Galactic Ridge X-ray emission. The observed line in…
Discovery of Diffuse Hard X-ray Emission around Jupiter with Suzaku
Yuichiro Ezoe, Kumi Ishikawa, Takaya Ohashi +4
We report the discovery of diffuse hard (1-5 keV) X-ray emission around Jupiter in a deep 160 ks Suzaku XIS data. The emission is distributed over ~16x8 Jovian radius and spatially…