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In Our Galactic Neighborhood: Is the Milky Way "normal?"

In Our Galactic Neighborhood: Is the Milky Way "normal?"


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 20 September 2017

 

 

In Our Galactic Neighborhood

Is the Milky Way an 'outlier' galaxy? Studying its 'siblings' for clues,
YALE UNIVERSITY, September 20, 2017.

A COMPANION GALAXY Milky Way sibling galaxy orbiting our own.
Photo: Satellite Galaxy of Our Milky Way Galaxy, by the Sloan Digital Sky Survey

Our local assumptions are not universal standards? We are not at the center of it all?

 

"...the Milky Way -- might not be as "typical" as previously thought, according to a new study."

 

 

Galactic Satellites: Ours
"The Milky Way...is host to several dozen smaller galaxy satellites. These smaller galaxies orbit around the Milky Way"

Our Tranquil Neighborhood
"...the Milky Way's satellites are much more tranquil than other systems of comparable luminosity and environment. Many satellites of those "sibling" galaxies are actively pumping out new stars, but the Milky Way's satellites are mostly inert..."

Our Standard is Our Quiet Galaxy
"We use the Milky Way and its surroundings to study absolutely everything..."

"Hundreds of studies come out every year about dark matter, cosmology, star formation, and galaxy formation, using the Milky Way as a guide. But it's possible that the Milky Way is an outlier."

Broader Context
"The SAGA Survey will provide a critical new understanding of galaxy formation and of the nature of dark matter."

 

Maps of the Universe

Map o da Sky

 

Astro-phys news

 

 

All September 2017 General News 

 

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