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/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Boulders, rocks and regolith on fast rotating asteroids (<2.5 hours) aremodeled to slide towards the equator due to a strong centrifugal force and alow cohesion force. As a result, regions of fresh subsurface material can beexposed. Therefore, we searched for color variation on small and fast rotatingasteroids. We describe a novel technique in which the asteroid issimultaneously observed in the visible and near-IR wavelength range. In thistechnique, brightness changes due to atmospheric extinction effects can becalibrated across the visible and near-IR images. We use V- and J-band filterssince the distinction in color between weathered and unweathered surfaces onordinary chondrite-like bodies is most prominent at these wavelengths and canreach ~25%. To test our method, we observed 3 asteroids with Cerro Tololo's 1.3m telescope. We find ~5% variation of the mean V-J color, but do not find anyclearly repeating color signature through multiple rotations. This suggeststhat no landslides occurred within the timescale of space weathering, or thatLandslides occurred but the exposed patches are too small for the measurements'uncertainty.

Searching for color variation on fast rotating asteroids with simultaneous V-J observations