Home » Press Releases » Dwarf galaxy’s “suburban” sprawl confirms ancient galaxies formed in dark matter halos
Bookmark and Share
Carnegie Science

Dwarf galaxy’s “suburban” sprawl confirms ancient galaxies formed in dark matter halos

1 Feb 2021, 16:07 UTC
Dwarf galaxy’s “suburban” sprawl confirms ancient galaxies formed in dark matter halos Anirudh Chiti/MIT.

An MIT-led team of astronomers that includes Carnegie’s Joshua Simon, Lina Necib, and Alexander Ji has discovered an unexpected outer suburb of stars on the distant fringes of the dwarf galaxy Tucana II. Their detection, published by Nature Astronomy, confirms that the cosmos’ oldest galaxies formed inside massive clumps of dark matter—what astronomers refer to as a “dark matter halo”.

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod