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en.wikipedia.org/wiki/Galaxy_rotation_curve

The rotation curve of a disc galaxy is a plot of the orbital speeds of visible stars or gas in that ... Though dark matter is by far the most accepted explanation of the rotation problem, ... within the galaxy or to modified dynamics in the outer portions of the spiral and not to ..... Groups and clusters · Large quasar groups · Quasars.

www.flashcardmachine.com/astronomy126.html

Apr 6, 2017 ... all the normal matter and dark matter ... Based on galactic rotation curves and cluster dynamics, we think dark matter ...

faculty.fortlewis.edu/hakes_c/Phys_145/test_4_practice_questions.html

D) The larger the gravity lens, the more massive the galaxy cluster. ..... 5) Based on galactic rotation curves and cluster dynamics, we think dark matter:.

phys.org/news/2015-03-galaxy-clusters-collidedark-mystery.html

Mar 26, 2015 ... When galaxy clusters collide, their dark matters pass through each other, ... "We have now pushed the probability of two 'dark matter particles' ...

www.astro.utu.fi/~cflynn/galdyn/lecture12.html

FFYS4327 Galactic Dynamics ... The main evidence for dark matter comes from rotation curves of disk galaxies. ... Despite being the closest galaxy to us, we cannot really measure the outer rotation ... The optical image shows the visible galaxies in the cluster, while the X-ray image displays the hot gas between the galaxies.

phys.org/news/2015-04-dark-conspiracy.html

Apr 30, 2015 ... Since this discovery 40 years ago, we have learned this mysterious ... Computer simulation of a galaxy, with the dark matter colorized to make it visible. ... experts in dark matter and galaxy formation to think carefully about what has ... the galaxy : Team develops new classification system for galaxies based ...

www.scribd.com/document/54676302/SuppQsFinalExamAstro320Spring08

1) Based on galactic rotation curves and cluster dynamics, we think dark matter: A) does not ... D) by the distribution and motions of globular clusters in their halo.

physicsworld.com/cws/article/news/2016/oct/07/correlation-between-galaxy-rotation-and-visible-matter-puzzles-astronomers

Oct 7, 2016 ... Strange correlation: why is galaxy rotation defined by visible mass? ... This latest study is based on near-infrared data from the Spitzer ... like superfluid dark matter or even complex galactic dynamics could be ... "I have experienced time and again people dismissing the data because they think MOND is ...

answersingenesis.org/astronomy/cosmology/case-for-dark-matter

Mar 22, 2017 ... We ought not to dismiss the observational science for dark matter ... Shortly thereafter, rotation curves of individual spiral galaxies ... dark matter have concentrated on MOdified Newtonian Dynamics (MOND) (Milgrom 1983). .... The distances to galaxy clusters normally are measured via the Hubble relation.

www.astronomy.com/-/media/Files/PDF/Marketing/ExploringtheUniverseThroughGravity.pdf

do we really know about dark matter? Massive ... Two massive galaxy clusters collided to form what's known as the Bullet cluster of galaxies. Ordi- ... A galaxy's rotation curve compares the disk ... Some scientists think about 600 mil- .... of ground-based gamma-ray detectors ...... dynamics, we need detailed spectra from.