Imaging spectroscopy of the Venus 1.27-μm O 2 airglow with ground-based telescopes

S. Ohtsuki, N. Iwagami, H. Sagawa, M. Ueno, Y. Kasaba, T. Imamura, E. Nishihara

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Several ground-based observations of the Venus 1.27-μm O 2 airglow were carried out from 2002 to 2005. Spectral image cubes were taken with the Okayama Astrophysical Observatory/infrared imaging spectrometer (superOASIS), the Gunma Astronomical Observatory/Cassegrain Near-Infrared Camera and NASA's Infrared Telescope Facility/cryogenic echelle spectrograph (CSHELL). The brightest airglow features were found at around the anti-solar point, which is in agreement with previous studies. We derived the rotational temperature distributions on the nightside hemisphere from observed airglow spectra. The temperature shows a weak positive correlation with the airglow intensity. The result indicates the bright region is heated chemically and/or dynamically, and supports the existing scenario for the Venus O 2 airglow. That is, the airglow is excited by the descending oxygen transported from the dayside.

本文言語English
ページ(範囲)1375-1380
ページ数6
ジャーナルAdvances in Space Research
41
9
DOI
出版ステータスPublished - 2008

ASJC Scopus subject areas

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • Earth and Planetary Sciences(all)

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