Tag

Orbital Motion

All articles tagged with #orbital motion

"Pulsating Supermassive Black Hole: Unveiling the 76-Minute Mystery at Our Galaxy's Core"
astronomy2 years ago

"Pulsating Supermassive Black Hole: Unveiling the 76-Minute Mystery at Our Galaxy's Core"

Scientists have discovered that the supermassive black hole Sagittarius A* at the center of our galaxy is pulsing every 76 minutes, emitting gamma radiation in a periodic pattern. This pulsing is similar to changes observed in the black hole's radio and X-ray emissions, suggesting the presence of an object orbiting the black hole. The object is likely a blob of hot gas bound together by a strong magnetic field, generating light at multiple wavelengths. The findings support the interpretation that the gas blob is orbiting the black hole and emitting radiation.

The Enormous Size of the Milky Way.
astronomy2 years ago

The Enormous Size of the Milky Way.

A recent study has summarized various methods to determine the mass of the Milky Way, including measuring the motion of stars, globular clusters, satellite galaxies, tidal plumes of dwarf galaxies, and stars leaving the galaxy. The team took a statistical average of these methods and determined the best value for the mass of the galaxy to be a trillion solar masses, give or take a few hundred billion solar masses. These methods rely on orbital motion and have varying levels of accuracy, but they all suggest that most of the galaxy's mass is in the form of dark matter.

The Immense Size of the Milky Way.
astronomy2 years ago

The Immense Size of the Milky Way.

A recent study summarizes the various methods used to determine the mass of the Milky Way, including measuring the motion of stars, globular clusters, satellite galaxies, tidal plumes of dwarf galaxies, and stars leaving our galaxy. The team took a statistical average of these methods and determined the best value for the mass of our galaxy to be a trillion solar masses, give or take a few hundred billion solar masses.