Component of disc galaxies comprising gas and stars
The Sculptor Galaxy (NGC 253) is an example of a disc galaxy
A galactic disc (or galactic disk) is a component of disc galaxies, such as spiral galaxies, lenticular galaxies, and the Milky Way. Galactic discs consist of a stellar component (composed of most of the galaxy's stars) and a gaseous component (mostly composed of cool gas and dust). The stellar population of galactic discs tend to exhibit very little random motion with most of its stars undergoing nearly circular orbits about the galactic center. Discs can be fairly thin because the disc material's motion lies predominantly on the plane of the disc (very little vertical motion). The Milky Way's disc, for example, is approximately 1 kly thick,[1] but thickness can vary for discs in other galaxies.
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A galacticdisc (or galactic disk) is a component of disc galaxies, such as spiral galaxies, lenticular galaxies, and the Milky Way. Galacticdiscs consist...
the center into the galacticdisc. The spiral arms are sites of ongoing star formation and are brighter than the surrounding disc because of the young...
A disc galaxy (or disk galaxy) is a galaxy characterized by a galacticdisc. This is a flattened circular volume of stars that are mainly orbiting the...
hypothetical source of the galactic halo of coronal gas may be the cumulative output of many “galactic fountains” in the galacticdisc ejecting hot gas. The...
the Gaia Sausage. Disc galaxy – Type of galactic form Galactic bulge – Tightly packed group of stars within a larger formation Galactic corona – Hot, ionised...
400 ± 3,600 light-years), by assuming that the galacticdisc is well represented by an exponential disc and adopting a central surface brightness of the...
may contain galaxies. The dark matter halo of a galaxy envelops the galacticdisc and extends well beyond the edge of the visible galaxy. Thought to consist...
relation in the Galacticdisc. Ultraluminous X-ray sources (ULXs): What powers X-ray sources that are not associated with active galactic nuclei but exceed...
An active galactic nucleus (AGN) is a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum...
gas surrounding it. The standard model for an active galactic nucleus is based on an accretion disc that forms around a supermassive black hole (SMBH) at...
process. In pass-through galactic collisions, or bullseye collisions, an often smaller galaxy will pass directly through the disc of an often larger spiral...
galaxies. A ring galaxy, as the name suggests, is a disc or spiral galaxy with its galacticdisc structured or distorted into a ring or torus-like appearance...
position) and correspond here to the bright yellow region of the galacticdisc (close to the galactic center), whereas the second and fourth correspond to images...
asteroseismology confirm the lack of any strong age–metallicity relation in the Galacticdisc. The lithium problem: Why is there a discrepancy between the amount...
galactic plane which bisects the galacticdisc, the influence of the galactic tide is weaker. When re-entering the galacticdisc—as it does every 20–25 million...
trajectory, the Sgr dSph main cluster is about to pass through the galacticdisc of the Milky Way within the next hundred million years, while the extended...
the easily distorted galacticdiscs (or other extremities) of one or both bodies, rather than the gravitationally bound galactic centers. Two very prominent...
the primary galaxy's spiral arms. An example of a major interaction is a galactic collision, which may lead to a galaxy merger. A giant galaxy interacting...
orbits the Galactic Centre cause it to regularly pass through the galactic plane. When the Sun's orbit takes it outside the galacticdisc, the influence...
warped galacticdisc of the Milky Way. However, observations using the Anglo-Australian Telescope published in 2007 suggest that a warped disc cannot...
the galactic disk in 1958 on the Monthly Notices of the Royal Astronomical Society. This was the first neutral hydrogen map of the galacticdisc and also...
Nebula (M76) Diffuse Nebula M78 Open Cluster M93 The Owl Nebula (M97) Galacticdisc Gould Belt Jon Lomberg's Milky Way painting used as background for Kepler...
orbits of material in the Oort disc are largely thanks to this galactic gravitational torquing. By the same token, galactic interference in the motion of...
"lopsided": they appear asymmetric in shape, meaning that one side of the galacticdisc is more massive and less luminous than the other. This characteristic...
Galactic is an American funk band from New Orleans, Louisiana. Formed in 1994 as an octet (under the name Galactic Prophylactic) and including singer Chris...
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