Study reveals how dark matter halo shape creates illusions in galactic tidal structures
By
Ryan White
Summary
This article discusses a scientific study published in Monthly Notices of the Royal Astronomical Society by researchers from the University of Sydney. The study investigates how the shape of a galaxy's dark matter halo affects the appearance of tidal structures (stellar shells and streams) that form when dwarf galaxies are torn apart by larger galaxies. The researchers found that non-spherical dark matter haloes can create illusions in these tidal features, potentially leading astronomers to misinterpret the age and formation history of these structures. The shape of the halo significantly impacts how stellar streams and shells appear, which has implications for understanding galaxy formation and evolution, as well as the nature of dark matter.
Source
bskyStudy reveals how dark matter halo shape creates illusions in galactic tidal structuresastrobites.orgKey quotes
· 2 pulledGalaxies are anything but static. Gas and dust within any particular galaxy orbits around the galactic centre, often creating stars that continue to orbit within a relatively
Stream in to today's paper to understand how tearing apart dwarf galaxies can reveal the shape of the dark matter haloes of hungry galaxies.
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