The Milky Way's Stellar Halo Isn't a Sphere After All - by spacewriter
The evolutionary history of the halo around the Milky Way involves some interesting characters. First, there’s a strange, lonely dwarf galaxy that astronomers dubbed “Gaia-Sausage-Enceladus” or GSE. The name comes from the European Space Agency’s Gaia spacecraft. The second part comes from the shape of GSE in its datasets. Finally, Enceladus comes to us from Greek mythology. He was a buried, mysterious giant, much like GSE was hidden in Gaia data.
Artist’s impression of debris of the Gaia-Enceladus galaxy. Gaia-Enceladus merged with our Milky Way galaxy during its early formation stages, nearly 10 billion years ago. Its debris can now be found throughout the galaxy and in the stellar halo. Courtesy ESA. That’s interesting to scientists searching for dark matter. If there really is a tilt in the dark matter halo, there could be areas where this mysterious stuff is more concentrated. Finding those regions could give astronomers a chance to detect interactions with dark matter. This would be particularly interesting as Earth moves through them in the future.The Milky Way isn’t alone in having a halo. Every galaxy has one dominated by dark matter.
South Africa Latest News, South Africa Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
More Strange Cosmic Threads Discovered Outside Our Galaxy, And They're HugeWe're getting closer to resolving the strange mystery presented by hundreds of enormous filaments dangling through the heart of the Milky Way.
Read more »
Bay Area high school basketball season opens with showcases at Bishop O’Dowd, DublinO’Dowd’s new $45 million state-of-the-art gym will hold a two-day event. NorCal Tip-Off Classic returns to Dublin High on Saturday with a stellar lineup of games.
Read more »
WTI oscillates around $80.00 after a V-shape recovery as OPEC+ interveneWest Texas Intermediate (WTI), futures on NYMEX, have witnessed a perpendicular recovery to near the psychological resistance of $80.00 after refreshi
Read more »
The detective keeping Oakland's Paramount Theatre in mint shapeNo matter how many paint dings he patches or seats he repairs, there will always be more to do for David Boysel, curator of the Paramount Theatre.
Read more »
Here's How Christina Applegate And Linda Cardellini's Real Friendship Helped Shape 'Dead To Me''I'm so lucky to be able to play that with Christina because we are truly friends. Working with her has been magical for me.'
Read more »
Rockies Mailbag: Who’s in worse shape, Broncos, CU Buffs or Rox?📬 New Rockies Mailbag • Which Colorado team is in worse shape? • Is Cody Bellinger an option? • How about Brandon Nimmo? • And more...
Read more »