57 citations · 172 across the 10 of their papers we have counts for
8 papers · 1 filter
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…
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…
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…