Measuring the Milky Way’s mind-blowing mass

A mix of telescope information and also 87,000 substitute galaxies assists researchers to measure the Galaxy. Astronomers are surrounding an exact quote for the mass of the Milky Way.

Previous efforts to select the Galaxy’s heft have actually frequently evaluated its gravitational result on just among the little ‘satellite’ galaxies orbiting the Milky Way. To expand that sample, Ekta Patel at the University of Arizona in Tucson and also her colleagues used a version that mimics the advancement of deep space.

The design’s outcomes consist of the masses of the galaxies that form in time and also the angular momenta of smaller sized satellite galaxies orbiting the larger ones.

The scientists analysed greater than 87,000 substitute galaxies as well as their attributes. The group after that performed an analytical analysis to compare the simulation’s outcomes with measurements of the 9 known satellite galaxies of the Milky Way.

A view of the central parts of the Milky Way, as seen from Earth

The closest suit in between the simulation and also the data places the mass of the Milky Way at in between 670 billion as well as 1,250 billion times that of the Sun.

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