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Elliptical galaxy definition in your own words

An elliptical galaxy is a galaxy having an ellipsoidal shape, and a smooth, nearly featureless brightness profile.

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They are one of the three main types of galaxy originally described by Edwin Hubble in Elliptical galaxies range in shape from nearly spherical to nearly flat, E7, one of the flattest types of elliptical galaxies is cigar-shaped and in size from hundreds of millions to over one trillion stars.

Originally, Edwin Hubble thought that elliptical galaxies may evolve into spiral galaxiesbut this turned out to be false. Most elliptical galaxies are composed of older, low-mass starswith a sparse interstellar medium and minimal or no star formation activity. They tend to be surrounded by large numbers of globular clusters.

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Elliptical galaxies and lenticular galaxies are also called "early-type" galaxies ETGdue to their position in the Hubble sequence. They are less common in the early Universethat is, in galaxies further away from us. KidzSearch Safe Wikipedia for Kids. Jump to: navigationsearch. The realm of the nebulae.

New Haven: Yale University Press. Astronomy Template-specific style sheet:. Category : Elliptical galaxies. Navigation menu Personal tools Log in. Namespaces Page Talk. Views Read View source View history.

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elliptical galaxy definition in your own words

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The word in the example sentence does not match the entry word. The sentence contains offensive content. Cancel Submit. Your feedback will be reviewed. Examples of elliptical galaxy These words are often used together.

You can go to the definition of elliptical or the definition of galaxy. Or, see other combinations with galaxy. These examples are from corpora and from sources on the web.

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Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

They normally occur in regions of new star formation, and have never been observed in an elliptical galaxy. From Wikipedia. According to simulations, this object will look like a giant elliptical galaxybut with a center showing less stellar density than current elliptical galaxies. It contains a large elliptical galaxya face-on spiral galaxy, and an edge-on spiral galaxy. Eventually both galaxies will have merged completely, streams of gas and dust will be flying through the space near the newly formed giant elliptical galaxy.

It has been theorized that an elliptical galaxy will result from a merger of the two spirals. The end result is an elliptical galaxyand many astronomers hypothesize that this is the primary mechanism that creates ellipticals. Many of the galaxies are the remnants of the mergers of two spiral galaxies to form a single elliptical galaxy. A common form is the elliptical galaxywhich has an ellipse-shaped light profile. During the merger, if there is enough gas, the increased gravity will force the gas to the centre of the forming elliptical galaxy.

It may be the closest giant elliptical galaxy. Maffei 1 is a slightly flattened core type elliptical galaxy. These galaxies consist of a bright central bulge, similar in appearance to an elliptical galaxysurrounded by an extended, disk-like structure. It is thought that the two spiral galaxies will merge to become an elliptical galaxy. It appears to be a giant elliptical galaxy with a supermassive black hole and associated accretion disk.A galaxy with an elliptical shape, containing relatively little gas and dust and having older stellar populations as compared to spiral galaxies.

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Caption: The nearby ESO G large elliptical galaxy in foreground acts as a cosmic lens to distort the light from a more distant galaxy inset. Best Long-range Test of General Relativity. The newly discovered supersized black hole resides in the center of a massive elliptical galaxyNGClocated in a cosmic backwater, a small grouping of 20 or so galaxies, said lead discoverer Chung-Pei Ma, a University of California-Berkeley astronomer and head of the MASSIVE Survey, a research project analyzing vast galaxies and supermassive black holes in the universe.

Massive black hole detected in unlikely place in space. The giant elliptical galaxy M87, in contrast, holds thousands. Entire star cluster thrown out of its galaxy. Caption: The giant elliptical galaxy NGCseen In this composite image, is filled with cold gas, yet it is not making stars. Black holes may halt stellar factories: galaxies stop forming stars despite access to raw materials. Eventually, the duo will settle down to form one super-giant elliptical galaxy.

M is a giant elliptical galaxythe brightest of the M96 Group, and a fairly typical representative of its class. Galaxies galore in Leo. At a distance of around 12 million light years away, Centaurus A is the closest large elliptical galaxy to our own Milky Way.

Keeping tabs on Centaurus. Following suspected aliens all the way from the south of England to the remote Scottish island of Skye, Jim, Charlie, and Becky are captured, but manage to escape from a planet in the "Sagittarian Dwarf Elliptical Galaxy ," foil a dastardly alien plot, and save the world.

Haddon, Mark. Dictionary browser? Full browser?An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the three main classes of galaxy described by Edwin Hubble in his Hubble sequence and work The Realm of the Nebulae[1] along with spiral and lenticular galaxies.

elliptical galaxy definition in your own words

Elliptical E galaxies are, together with lenticular galaxies S0 with their large-scale disks, and ES galaxies [2] [3] [4] with their intermediate scale disks, a subset of the "early-type" galaxy population. Most elliptical galaxies are composed of older, low-mass starswith a sparse interstellar medium and minimal star formation activity, and they tend to be surrounded by large numbers of globular clusters.

Elliptical galaxies range in size from tens of millions to over one hundred trillion stars. Originally, Edwin Hubble hypothesized that elliptical galaxies evolved into spiral galaxieswhich was later discovered to be false, [7] although the accretion of gas and smaller galaxies may build a disk around a pre-existing ellipsoidal structure. Elliptical galaxies are characterized by several properties that make them distinct from other classes of galaxy. They are spherical or ovoid masses of stars, starved of star-making gases.

The smallest known elliptical galaxy is about one-tenth the size of the Milky Way [ citation needed ].

elliptical galaxy

The motion of stars in elliptical galaxies is predominantly radial [ citation needed ]unlike the disks of spiral galaxieswhich are dominated by rotation. Furthermore, there is very little interstellar matter neither gas nor dustwhich results in low rates of star formationfew open star clustersand few young stars; rather elliptical galaxies are dominated by old stellar populationsgiving them red colors.

Large elliptical galaxies typically have an extensive system of globular clusters. The dynamical properties of elliptical galaxies and the bulges of disk galaxies are similar, suggesting that they may be formed by the same physical processes, although this remains controversial. The luminosity profiles of both elliptical galaxies and bulges are well fit by Sersic's lawand a range of scaling relations between the elliptical galaxies' structural parameters unify the population. Every massive elliptical galaxy contains a supermassive black hole at its center.

Observations of 46 elliptical galaxies, 20 classical bulges, and 22 pseudobulges show that each contain a black hole at the center.

elliptical galaxy definition in your own words

Elliptical galaxies are preferentially found in galaxy clusters and in compact groups of galaxies. Unlike flat spiral galaxies with organization and structure, elliptical galaxies are more three-dimensional, without much structure, and their stars are in somewhat random orbits around the center.

Elliptical galaxies vary greatly in both size and mass with diameters ranging from lightyears to more thanlightyears, and masses from 10 5 to nearly 10 13 solar masses.

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The smallest, the dwarf elliptical galaxiesmay be no larger than a typical globular clusterbut contain a considerable amount of dark matter not present in clusters. Most of these small galaxies may not be related to other ellipticals. The Hubble classification of elliptical galaxies contains an integer that describes how elongated the galaxy image is. The classification is determined by the ratio of the major a to the minor b axes of the galaxy's isophotes :.

Thus for a spherical galaxy with a equal to bthe number is 0, and the Hubble type is E0. While the limit in the literature is about E7, it has been known since [2] that the E4 to E7 galaxies are misclassified lenticular galaxies with disks inclined at different angles to our line of sight. This has been confirmed through spectral observations revealing the rotation of their stellar disks.A galaxy having a smooth, featureless light-profile. It is one of the three main classes of galaxies originally described by Edwin Hubble in his work uCThe Realm of the NebulaeuD.

An elliptical galaxy is a galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless brightness profile. They are one of the three main classes of galaxy originally described by Edwin Hubble in his work The Realm of the Nebulae, along with spiral and lenticular galaxies. They range in shape from nearly spherical to highly flat and in size from tens of millions to over one trillion stars. Originally, Edwin Hubble thought that elliptical galaxies may evolve into spiral galaxies, which later turned out to be false.

Stars found inside of elliptical galaxies are very much older than stars found in spiral galaxies. Most elliptical galaxies are composed of older, low-mass stars, with a sparse interstellar medium and minimal star formation activity, and they tend to be surrounded by large numbers of globular clusters.

They are preferentially found close to the centers of galaxy clusters. Elliptical galaxies are also called "early-type" galaxies, due to their location in the Hubble sequence, and are found to be less common in the early Universe. The numerical value of elliptical galaxy in Chaldean Numerology is: 1. The numerical value of elliptical galaxy in Pythagorean Numerology is: 7. We're doing our best to make sure our content is useful, accurate and safe. If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.

Forgot your password? Retrieve it. If by any chance you spot an inappropriate image within your search results please use this form to let us know, and we'll take care of it shortly. Word in Definition. Wiktionary 0. Freebase 4. How to pronounce elliptical galaxy? Alex US English. Daniel British. Karen Australian. Veena Indian.

Elliptical galaxy

How to say elliptical galaxy in sign language? Numerology Chaldean Numerology The numerical value of elliptical galaxy in Chaldean Numerology is: 1 Pythagorean Numerology The numerical value of elliptical galaxy in Pythagorean Numerology is: 7. Select another language:.See synonyms for elliptical galaxy on Thesaurus.

Are you learning Spanish? Or do you just have an interest in foreign languages? Either way, this quiz on Spanish words for animals is for you. Also called ellipticalE galaxy. Words nearby elliptical galaxy ellipsoid of revolutionellipsometerelliptellipticalelliptical amputationelliptical galaxyelliptical lightellipticallyelliptical polarizationelliptical trainerelliptic function.

Words related to elliptical galaxy spiral galaxyirregular galaxyisland universestar clusterstar system. The most common type of galaxy, ranging in shape from nearly spherical classified as E0 to greatly elongated classified as E7.

Elliptical galaxies vary greatly in size and include some of the largest and smallest known galaxies. They do not have spiral arms and have considerably less interstellar gas and dust than spiral galaxies, with little or no star formation taking place within them.

Their stars follow individual elliptical orbits around the center of the galaxy. Long thought to be older galaxies which had used up all the material for star formation, it has also been suggested that elliptical galaxies actually form from collisions between spiral galaxies. Compare irregular galaxy lenticular galaxy spiral galaxy. See more at Hubble classification system.

All rights reserved. Do You Know This Word?These example sentences are selected automatically from various online news sources to reflect current usage of the word 'elliptical galaxy. Send us feedback.

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See More First Known Use of elliptical galaxyin the meaning defined above Keep scrolling for more Learn More about elliptical galaxy Share elliptical galaxy Post the Definition of elliptical galaxy to Facebook Share the Definition of elliptical galaxy on Twitter Time Traveler for elliptical galaxy.

See more words from the same year Dictionary Entries near elliptical galaxy ellipsoid of revolution ellipsometer elliptical elliptical galaxy ellipticalness elliptical projection elliptical stern. Accessed 23 Jan. More from Merriam-Webster on elliptical galaxy Britannica.

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elliptical galaxy definition in your own words

Examples of elliptical galaxy in a Sentence Recent Examples on the Web Just last year, astronomers published the first-ever picture of a black hole and its event horizon, a 7-billion-solar-mass beast at the center of the M87 elliptical galaxy. First Known Use of elliptical galaxyin the meaning defined above. Keep scrolling for more. Learn More about elliptical galaxy. Share elliptical galaxy Post the Definition of elliptical galaxy to Facebook Share the Definition of elliptical galaxy on Twitter.

Time Traveler for elliptical galaxy The first known use of elliptical galaxy was in See more words from the same year. Dictionary Entries near elliptical galaxy ellipsoid of revolution ellipsometer elliptical elliptical galaxy ellipticalness elliptical projection elliptical stern See More Nearby Entries. Statistics for elliptical galaxy Look-up Popularity. Comments on elliptical galaxy What made you want to look up elliptical galaxy? Get Word of the Day daily email! Test Your Vocabulary. Spell words.

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