Direct measurement of decimetre-sized rocky material in the Oort cloud - Nature Astronomy

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Direct measurement of decimetre-sized rocky material in the Oort cloud - Nature Astronomy
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'Unexpected' space traveler defies theories about origin of solarsystem NatureAstronomy

Each clone is colour-coded individually and represents one sample within the orbital covariance matrix. Time is not shown on any axis, but the clones that start at t - 60 days are clustered at zero and spread out as we go further back in time, as the distance from Mars decreases and then increases again.Backwards integration with all planets included. Each clone is colour-coded individually. Planetary perturbations produce small nearly-stochastic changes in the orbital elements.

Extended Data Fig. 9 Details of the modelled individual fragmentations of the meteoroid marked on the simulated light curve. Solid black line is the total light production, the dashed black line is the magnitude of the main body from which fragments are released, green dashed lines are magnitudes of the eroding fragments, and purple lines are magnitudes of the grains ejected either from the main body or the eroding fragments. Arrows indicate where the fragmentations occurred with which parameters, and stars indicate the beginning of individual fragment/grain light curves.

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