Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Galaxy_rotation_curve> ?p ?o. }
Showing items 1 to 32 of
32
with 100 items per page.
- Galaxy_rotation_curve abstract "The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the magnitude of the orbital velocities (i.e., the speeds) of visible stars or gas in that galaxy versus their radial distance from that galaxy's center, typically rendered graphically as a scatter plot.A general feature of the galaxy rotation curves that have been obtained through measurement to date is that the orbital speed of stars and gas is almost constant as far from the galactic centre as can be measured (line B in the illustration): that is, stars are observed to revolve around the centre of the galaxy at almost the same speed over a large range of distances from the centre of the galaxy. If disc galaxies had mass distributions similar to the observed distributions of stars and gas then the orbital speed would decline at increasing distances (dotted line A in illustration) in the same way as do other systems with most of their mass in the centre, such as the Solar System or the moons of Jupiter.The rotation curves of Spiral galaxies are also known to be asymmetric. The observational data from each side of a galaxy are generally averaged. Therefore, only highly asymmetric cases are well known. But smaller asymmetries are also reported. RC asymmetry appears to be normal rather than exceptional.The galaxy rotation problem is the discrepancy between observed galaxy rotation curves and the theoretical prediction, assuming a centrally-dominated mass associated with the observed luminous material. When masses of galaxies are calculated solely from the luminosities and mass-to-light ratios in the disk, and if core portions of spiral galaxies are assumed to approximate to those of stars, the masses derived from the kinematics of the observed rotation and the law of gravity do not match. This discrepancy can be accounted for by postulating a large amount of dark matter that permeates the galaxy and extends into the galaxy's halo. Though dark matter is by far the most accepted explanation for the resolution to the galaxy rotation problem, other proposals have been offered with varying degrees of success. Of the possible alternatives, the most notable is Modified Newtonian Dynamics (MOND), which involves modifying the laws of gravity.".
- Galaxy_rotation_curve thumbnail GalacticRotation2.svg?width=300.
- Galaxy_rotation_curve wikiPageExternalLink 0903.4849v4.pdf.
- Galaxy_rotation_curve wikiPageExternalLink index.php?option=com_content&task=view&id=113&Itemid=108.
- Galaxy_rotation_curve wikiPageID "183083".
- Galaxy_rotation_curve wikiPageRevisionID "605049210".
- Galaxy_rotation_curve hasPhotoCollection Galaxy_rotation_curve.
- Galaxy_rotation_curve subject Category:Astrophysics.
- Galaxy_rotation_curve subject Category:Galactic_astronomy.
- Galaxy_rotation_curve comment "The rotation curve of a disc galaxy (also called a velocity curve) is a plot of the magnitude of the orbital velocities (i.e., the speeds) of visible stars or gas in that galaxy versus their radial distance from that galaxy's center, typically rendered graphically as a scatter plot.A general feature of the galaxy rotation curves that have been obtained through measurement to date is that the orbital speed of stars and gas is almost constant as far from the galactic centre as can be measured (line B in the illustration): that is, stars are observed to revolve around the centre of the galaxy at almost the same speed over a large range of distances from the centre of the galaxy. ".
- Galaxy_rotation_curve label "Courbe de rotation des galaxies".
- Galaxy_rotation_curve label "Curva de rotación galáctica".
- Galaxy_rotation_curve label "Galaxy rotation curve".
- Galaxy_rotation_curve label "Krzywa rotacji galaktyki".
- Galaxy_rotation_curve label "Melkwegstelseldraaiingsprobleem".
- Galaxy_rotation_curve label "Rotationskurve".
- Galaxy_rotation_curve label "Кривая вращения галактики".
- Galaxy_rotation_curve label "星系自轉問題".
- Galaxy_rotation_curve label "銀河の回転曲線問題".
- Galaxy_rotation_curve sameAs Rotationskurve.
- Galaxy_rotation_curve sameAs Curva_de_rotación_galáctica.
- Galaxy_rotation_curve sameAs Courbe_de_rotation_des_galaxies.
- Galaxy_rotation_curve sameAs 銀河の回転曲線問題.
- Galaxy_rotation_curve sameAs 은하의_회전곡선.
- Galaxy_rotation_curve sameAs Melkwegstelseldraaiingsprobleem.
- Galaxy_rotation_curve sameAs Krzywa_rotacji_galaktyki.
- Galaxy_rotation_curve sameAs m.018_x0.
- Galaxy_rotation_curve sameAs Q1475614.
- Galaxy_rotation_curve sameAs Q1475614.
- Galaxy_rotation_curve wasDerivedFrom Galaxy_rotation_curve?oldid=605049210.
- Galaxy_rotation_curve depiction GalacticRotation2.svg.
- Galaxy_rotation_curve isPrimaryTopicOf Galaxy_rotation_curve.
