[meteorite-list] Vesta-Howardite confirmation and other new parent body research findings

[Galactic Stone & Ironworks]

Hi Doug,

This is great news and not entirely unexpected....although exciting
nonetheless.  :)

Are copies of these articles available online yet?  (probably not I am assuming)

Best regards,

MikeG
-- 
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Galactic Stone & Ironworks - Meteorites & Amber (Michael Gilmer)

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On 11/13/11, MexicoDoug <mexicodoug at aim.com> wrote:
> Dear List,
>
> Here are 3 more articles from the Dec. 2011 issue of Icarus.
>
> (1) Confirms a good Howardite match for Vesta by DAWN;
> (2) DAWN related looks at how CM2 material on Vesta modifies the
> Framing Camera spectra;
> (3) Looks at Asteroid (101955) 1999 RQ36 and suggests an association
> with CM1's
>
> Kijndest wishes
> Doug
>
>
> Ultraviolet spectroscopy of Asteroid (4) Vesta
> Pages 640-649
>
> Highlights
> ► Multi-instrument measurements of Vesta’s geometric albedo in the UV
> and visible.
> ► No UV spectral bluing or lightcurve reversal on Vesta.
> ► Longitudinal variation of Vesta UV spectral slope matches that in
> visible.
> ► Fine-grained howardite matches Vesta’s spectrum from 220 nm to 950
> nm.
> ► No evidence of space weathering in the UV–visible spectroscopy and
> lightcurve.
>
> =================================================================
>
> How to characterize terrains on 4 Vesta using Dawn Framing Camera color
> bands?
> Pages 376-386
>
> Highlights
> ► We present methods to classify terrains on Vesta using Dawn Framing
> Camera images.
> ► Effects of exogenous material (CM2) on FC color spectra are also
> presented.
> ► Pseudo Band I minimum can be used to derive ferrosilite content of
> the surface.
>
> ================================================================
>
> Asteroid (101955) 1999 RQ36: Spectroscopy from 0.4 to 2.4 μm and
> meteorite analogs
> Pages 462-475
>
> "We speculate that RQ36 is composed of a “CM1”-like material."
>
> ► We present reflectance spectra from 0.4 to 2.4 microns of asteroid
> (101955) 1999 RQ36.
> ► RQ36 is the target of the OSIRIS-REx spacecraft mission.
> ► We performed parametric tests and a least-squares search through
> RELAB meteorite data.
> ► Results show that CI and/or CM meteorites are the most likely
> meteorite analogs for RQ36.
> ► We also compare RQ36 with other known B-type asteroids measured by
> Clark et al. (2010).
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