English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

This work updates and expands on results of our long-term radar-drivenobservational campaign of main-belt asteroids (MBAs) focused on Bus-DeMeo Xc-and Xk-type objects (Tholen X and M class asteroids) using the Arecibo radarand NASA Infrared Telescope Facilities (Ockert-Bell et al. 2008; 2010; Shepardet al. 2008; 2010). Eighteen of our targets were near-simultaneously observedwith radar and those observations are described in Shepard et al. (2010). Wecombine our near-infrared data with available visible wavelength data for amore complete compositional analysis of our targets. Compositional evidence isderived from our target asteroid spectra using two different methods, a \c{hi}2search for spectral matches in the RELAB database and parametric comparisonswith meteorites. We present four new methods of parametric comparison,including discriminant analysis. Discriminant analysis identifies meteoritetype with 85% accuracy. This paper synthesizes the results of these two analogsearch algorithms and reconciles those results with analogs suggested fromradar data (Shepard et al. 2010). We have observed 29 asteroids, 18 inconjunction with radar observations. For eighteen out of twenty-nine objectsobserved (62%) our compositional predictions are consistent over two or moremethods applied. We find that for our Xc and Xk targets the best fit is an ironmeteorite for 34% of the samples. Enstatite Chondrites were best fits for 6 ofour targets (21%). Stony-iron meteorites were best fits for 2 of our targets(7%). A discriminant analysis suggests that asteroids with no absorption bandcan be compared to iron meteorites and asteroids with both a 0.9 and 1.9 {\mu}mabsorption band can be compared to stony-iron meteorites.

The Composition of M-type asteroids II: Synthesis of spectroscopic and radar observations