Tag Archive for 'Warp'

Clough et al. proposed a formalism for studying warp drive spacetimes dynamically and produced the first fully consistent numerical-relativity waveforms for the collapse of a warp drive bubble.

Warp Drive Collapse Should Generate Gravitational Waves, Theoretical Astrophysicists Claim

Jul 31, 2024 by News Staff

The principle idea behind a warp drive is that instead of exceeding the speed of light directly in a local reference frame, a ‘warp bubble’ could traverse...

From a great distance, our Milky Way Galaxy would look like a thin disk of stars that orbits once every few hundred million years around its central region, where hundreds of billions of stars provide the gravitational ‘glue’ to hold it all together. But this pull of gravity is much weaker in the Galaxy’s far outer disk. There, the hydrogen atoms making up most of the Milky Way’s gas disk are no longer confined to a thin plane, instead they give the disk an S-like, or warped, appearance. Image credit: Xiaodian Chen.

Milky Way is Embedded in Tilted Dark Matter Halo, Research Suggests

Oct 12, 2023 by News Staff

The outer disk of our Milky Way Galaxy is warped and flared. Several mechanisms have been proposed to explain these phenomena, but none have reproduced...

The structure of our Milky Way Galaxy with its warped Galactic disk, where the majority of its hundreds of billions of stars reside. Data from ESA’s Gaia spacecraft recently proved that the disk’s warp is precessing, essentially moving around similarly to a wobbling spinning top. The speed of the warp’s rotation is so high that it must have been caused by a rather powerful event, astronomers believe, perhaps an ongoing collision with another, smaller, galaxy which sends ripples through the disk like a rock thrown into water. Image credit: Stefan Payne-Wardenaar / NASA / JPL-Caltech / ESA.

Milky Way’s Warp Caused by Recent or Ongoing Encounter with Satellite Galaxy

Mar 3, 2020 by News Staff

Data from ESA’s Gaia star-mapping satellite show that the warped disk of our Milky Way Galaxy precesses, or wobbles, similarly to the motion of a spinning...