The white dwarf that has researchers intrigued is named WD 0816-310, and it’s the remnant of a star barely extra large than our Sun. All that continues to be of that star now’s the white dwarf core, which is about the identical measurement as Earth.

The researchers have been capable of find out about this metallic scar by seeing how metals have been distributed throughout the star’s floor. The metals aren’t evenly unfold however are slightly concentrated specifically areas. They may inform this by seeing how the energy of the sign coming from the metals modified in energy because the planet rotated.

The modifications in detection ranges of the metals have been additionally associated to modifications within the magnetic area of the white dwarf. The outcomes recommend that the metals are clumped across the magnetic pole, which supplies a clue to how they received there: The researchers assume that the magnetic area acted like a funnel for incoming matter from the planetary chunk, pulling it onto the star’s floor and creating the scar.

“Surprisingly, the material was not evenly mixed over the surface of the star, as predicted by theory. Instead, this scar is a concentrated patch of planetary material, held in place by the same magnetic field that has guided the infalling fragments,” stated co-author John Landstreet of Western University, Canada. “Nothing like this has been seen before.”