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

doi:10.1016/j.asr.2007.10.014

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

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1375-1380
Number of pages	6
Journal	Advances in Space Research
Volume	41
Issue number	9
DOIs	https://doi.org/10.1016/j.asr.2007.10.014
Publication status	Published - 2008
Externally published	Yes

Keywords

Airglow
Ground-based observation
Near infrared
Rotational temperature
Spectroscopy
Venus

ASJC Scopus subject areas

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

Access to Document

10.1016/j.asr.2007.10.014

Cite this

Imaging spectroscopy of the Venus 1.27-μm O ₂ airglow with ground-based telescopes . / Ohtsuki, S.; Iwagami, N.; Sagawa, H.; Ueno, M.; Kasaba, Y.; Imamura, T.; Nishihara, E.

In: Advances in Space Research, Vol. 41, No. 9, 2008, p. 1375-1380.

Research output: Contribution to journal › Article › peer-review

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title = " Imaging spectroscopy of the Venus 1.27-μm O 2 airglow with ground-based telescopes ",

abstract = " 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.",

keywords = "Airglow, Ground-based observation, Near infrared, Rotational temperature, Spectroscopy, Venus",

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

note = "Funding Information: The authors acknowledge generous support from Dr. S.B. Bus, the IRTF Support Scientist, Dr. E. Volquardsen, the telescope operator, and all staffs of IRTF and GAO. We also wish to thank Prof. M. Nakamura for many helpful discussions. This research was supported in part by a Grant-in-Aid for JSPS Research Fellows (for O.S. and H.S.) and by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B), 17349147, 2005.",

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AU - Ueno, M.

AU - Kasaba, Y.

AU - Imamura, T.

AU - Nishihara, E.

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PY - 2008

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N2 - 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.

AB - 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.

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