MESSENGER Observations of Mercury’s Exosphere: Detection of Magnesium and Distribution of Constituents

@article{McClintock2009MESSENGEROO,
  title={MESSENGER Observations of Mercury’s Exosphere: Detection of Magnesium and Distribution of Constituents},
  author={William E. McClintock and Ronald J. Vervack and Eric Todd Bradley and Rosemary M. Killen and Nelly Mouawad and Ann L. Sprague and Matthew H. Burger and Sean C. Solomon and Noam R. Izenberg},
  journal={Science},
  year={2009},
  volume={324},
  pages={610 - 613}
}
MESSENGER from Mercury The spacecraft MESSENGER passed by Mercury in October 2008, in what was the second of three fly-bys before it settles into the planet's orbit in 2011. Another spacecraft visited Mercury in the mid-1970s, which mapped 45% of the planet's surface. Now, after MESSENGER, only 10% of Mercury's surface remains to be imaged up close. Denevi et al. (p. 613) use this near-global data to look at the mechanisms that shaped Mercury's crust, which likely formed by eruption of magmas… 
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For most of the orbital phase of the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission, a regular search for weakly emitting or less abundant species in Mercury's
The Study of Mercury
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Modeling MESSENGER observations of calcium in Mercury's exosphere
[1] The Mercury Atmospheric and Surface Composition Spectrometer (MASCS) on the MESSENGER spacecraft has made the first high-spatial-resolution observations of exospheric calcium at Mercury. We use a
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References

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The Evolution of Mercury’s Crust: A Global Perspective from MESSENGER
TLDR
Together, MESSENGER and Mariner 10 observations of Mercury now provide a near-global look at the planet, revealing lateral and vertical heterogeneities in the color and thus composition of Mercury’s crust.
MESSENGER Observations of Magnetic Reconnection in Mercury’s Magnetosphere
TLDR
During MESSENGER’s second flyby of Mercury, a steady southward IMF was observed and the magnetopause was threaded by a strong magnetic field, indicating a reconnection rate ~10 times that typical at Earth.
MESSENGER Observations of the Composition of Mercury's Ionized Exosphere and Plasma Environment
TLDR
The MESSENGER spacecraft's observations of Mercury's ionized exosphere during its first flyby yielded Na+, O+, and K+ abundances, consistent with expectations from observations of neutral species.
MESSENGER Mission Overview
Abstract The MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, launched on August 3, 2004, is nearing the halfway point on its voyage to become the first probe to
Processes that Promote and Deplete the Exosphere of Mercury
Abstract It has been speculated that the composition of the exosphere is related to the composition of Mercury’s crustal materials. If this relationship is true, then inferences regarding the bulk
The calcium exosphere of Mercury
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TLDR
The localized distribution and high temperature suggest that the atmospheric calcium may arise from surface sputtering by ions, which enter Mercury's auroral zone, and the low abundance of atmospheric Ca may indicate that the regolith is rarefied in calcium.
Mercury's Magnetosphere After MESSENGER's First Flyby
TLDR
The magnetic field showed reconnection signatures in the form of flux transfer events, azimuthal rotations consistent with Kelvin-Helmholtz waves along the magnetopause, and extensive ultralow-frequency wave activity.
Spectroscopic Observations of Mercury's Surface Reflectance During MESSENGER's First Mercury Flyby
TLDR
During MESSENGER's first flyby of Mercury, the Mercury Atmospheric and Surface Composition Spectrometer made simultaneous mid-ultraviolet to near-infrared reflectance observations of the surface, providing evidence for variations in composition and regolith maturation of Mercury's surface.
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TLDR
Analysis of data obtained by the ultraviolet experiment on Mariner 10 indicates that Mercury is surrounded by a thin atmosphere consisting in part of helium, which is similar to that of the moon over a broad range of wavelengths.
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