The EUV Reflectance of Mercury's Surface Measured by BepiColombo/PHEBUS
The EUV Reflectance of Mercury's Surface Measured by BepiColombo/PHEBUS
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BepiColombo/PHEBUS 测量的水星表面 EUV 反射率
DOI:
10.1029/2022je007669
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
A. J. Corso
中科院分区:
文献类型:
--
作者:
J.Y. Chaufray;E. Qumerais;D. Koutroumpa;R. Robidel;F. Leblanc;A. Rberac;I. Yoshikawa;K. Yoshioka;G. Murakami;O. Korablev;D. Belyaev;M. G. Pelizzo;A. J. Corso
On 9 and 10 October 2021, Probing the Hermean Exosphere by Ultraviolet Spectroscopy aboard BepiColombo observed the disk‐integrated reflected light from the Sun by Mercury in the spectral range 90–160 nm at a phase angle of 70°. These observations are used to derive the EUV reflectance of the surface of Mercury in this wavelength range for the first time since the Mariner 10 observations in 1974–1975. Our observations are in agreement with a surface of Mercury darker by a factor ∼0.5–0.6 compared to the Moon in this wavelength range, with an average reflectance of 0.3% at a phase angle of 70°. This lower reflectance of Mercury could be due to the lower abundance of FeO. The derived reflectance near 160 nm is close to the derived reflectance at 220 nm by MESSENGER/MASCS at a similar phase angle. Possible spectral variations measured between 110 and 140 nm could be attributed to SiO2glass, but the signal to noise ratio is low and other observations, possible at several periods during the rest of the cruise, are needed to confirm this last result.
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DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
E. Quémerais;M. Snow;R. Bonnet
通讯作者:
R. Bonnet
影响因子:
18.3
作者:
P. Peplowski;R. Klima;D. Lawrence;C. Ernst;B. Denevi;E. Frank;J. Goldsten;S. Murchie;L. Nittler;S. Solomon
通讯作者:
P. Peplowski;R. Klima;D. Lawrence;C. Ernst;B. Denevi;E. Frank;J. Goldsten;S. Murchie;L. Nittler;S. Solomon
影响因子:
10.3
作者:
G. Cremonese;A. Sprague;J. Warell;N. Thomas;Leonid Ksamfomality
通讯作者:
Leonid Ksamfomality
影响因子:
6.5
作者:
J. Warell;Per
通讯作者:
Per
影响因子:
5.2
作者:
G. Gladstone;J. McDonald;W. Boyd;S. Bowyer
通讯作者:
S. Bowyer