Tag

Stellar Motion

All articles tagged with #stellar motion

Gaia Detects Massive Wave Rippling Through the Milky Way

Originally Published 3 months ago — by European Space Agency

Featured image for Gaia Detects Massive Wave Rippling Through the Milky Way
Source: European Space Agency

Gaia telescope data reveals a giant wave rippling through the Milky Way's outer disc, caused by large-scale vertical motions of stars, possibly due to past galactic interactions, offering new insights into our galaxy's dynamic structure.

"New 3D image reveals potato-shaped M87 galaxy and improved black hole image"

Originally Published 2 years ago — by EarthSky

Featured image for "New 3D image reveals potato-shaped M87 galaxy and improved black hole image"
Source: EarthSky

Scientists have created a 3D map of M87, a giant elliptical galaxy, using the Hubble Space Telescope and the Keck Observatory in Hawaii. The map shows that the galaxy has a potato shape, or is triaxial. The researchers were able to make a more precise measurement of the central black hole, which has 5.4 billion times the mass of our sun, and gain insight into its spin rate by studying the stellar motion.