Sentences with phrase «galactic rotation curves»

The list of accomplishments is far too large to fit within one article, but they include: the first search for extraterrestrial intelligence; creation of the Drake equation; discovery of flat galactic rotation curves; first pulsar discovered in a supernova remnant; first organic polyatomic molecule detected in interstellar space; black hole detected at the center of the Milky Way; determination of the Tully - Fisher relationship; detection of the first interstellar anion; measurement of the most massive neutron star known; first high angular resolution image of the Sunyaev - Zel» Dovich Effect; discovery of only known millisecond pulsar in a stellar triple system; discovery of pebble - sized proto - planets in Orion, and the first detection of a chiral molecule in space.

«You don't expect the kind of uniformity that we observe in hundreds of galactic rotation curves.»

In other words, astronomers can predict just what the galactic rotation curves will be from a given galaxy's stellar distribution.

«I had heard there was this trouble understanding the so - called galactic rotation curves, which describe the way stars rotate around the centers of galaxies,» he says.

Not exact matches

At a certain distance from the galactic center, the rotation curves for stars in most every spiral galaxy simply do not fall; instead, at some point they flatten.

Sharma worked out how the speed of circular orbits changed with distance from the galactic centre (called the rotation curve).

In 1983, Mordehai Milgrom a physicist at the Weizmann Institute of Science in Rehovot, Israel, found that he could explain the so - called galaxy rotation curves without dark matter if he simply assumed that on the galactic scale, dynamics and gravity worked a bit differently from what Isaac Newton postulated.

The rotation curve is flat in the outer parts of most galactic disks (dark matter!).