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...re illustrations of above real images.<ref>{{cite news|title=Circumstellar Disks HD 141943 and HD 191089|url=http://www.spacetelescope.org/images/opo1416a/| A '''circumstellar disc''' (or '''circumstellar disk''') is a [[torus]], pancake or ring-shaped [[accretion disk]] of [[mat ...

...the borders of the dead zone in 2D numerical simulations of circumstellar disks |journal=Astronomy & Astrophysics | issue=3 |pages=869–888| s2cid=15820108 ......533.1023L | volume=533 |title=Rossby Wave Instability of Thin Accretion Disks. II. Detailed Linear Theory |journal=The Astrophysical Journal |pages=1023– ...

...e="Eriksson2020"/><ref name="Betti2022"/><ref name="Ringqvist2023"/> These disks show characteristics of a gas-rich disk at unexpected high ages.<ref name=" == The circumstellar companion == ...

{{short description|Type of circumstellar disk}} ...ral types of [[M-type star|M]] or later. The presence of gas around these disks has generally been inferred from the total amount of radiation emitted from ...

...V. |date=2020-02-01 |title=Simulations of Dynamical Gas–Dust Circumstellar Disks: Going Beyond the Epstein Regime |url=https://doi.org/10.1134/S106377292001 ...

...ary 2020|title=Resolving the FU Orionis System with ALMA: Interacting Twin Disks?|journal=Astrophysical Journal|language=en|volume=889|issue=1|pages=59|doi= ...

...omagnetic spectrum|spectrum]]. The study of oscillation modes in accretion disks is referred to as '''diskoseismology'''.<ref> |title=Diskoseismology: Probing accretion disks. I - Trapped adiabatic oscillations ...

...excess of radiation from 1 to 20&nbsp;[[μm]], indicating the presence of [[circumstellar dust]] with a temperature of a few hundred [[kelvin]]. Observing at shorte ...f name="rob1975"/> Such cool pulsating variable stars are known to produce circumstellar dust in the slow [[stellar wind]]s flowing off such stars. No orbital velo ...

..., although such systems may also consist of bodies such as circumplanetary disks, [[Planetary ring|ring systems]], [[moonlet]]s, [[minor-planet moon]]s and ...l consensus is that most planetary systems are formed from an accretionary disks, the formation of satellite systems is less clear. The origin of many moon ...

...ar became a white dwarf is far longer than the expected timescale for such disks to be cleared from a system. The disk consists of two rings at different te ...

...> This is useful studying ice in the interstellar medium and circumstellar disks. However, observing these features is difficult because the atmosphere is o ...eved in astrophysical environments such as molecular clouds, circumstellar disks, and the surfaces of objects in the outer Solar System. In the laboratory, ...

...itle=Interplanetary Dust |chapter=Interstellar Dust and Circumstellar Dust Disks |editor1=e. Grün |editor2=B.A.S. Gustafson |editor3=S. Dermott |editor4=H. ...rs]] may expand into [[red giants]] with dense [[stellar wind]]s forming [[circumstellar envelope]]s in which molecules and dust particles can form. More massive st ...

...cts on a wide orbit (≥100 AU) formed in [[Circumstellar disc|circumstellar disks]] and these objects are therefore more often referred as planetary-mass com ...

...ate=2019 |title=High-resolution ALMA Observations of HD 100546: Asymmetric Circumstellar Ring and Circumplanetary Disk Upper Limits |journal=The Astrophysical Journ ...ub-brown dwarf]].<ref name="joergens2013_AA558" /> It is surrounded by a [[circumstellar disk]] of dust and particles of rock and ice. The currently preferred radiu ...

...rlet |first5=R. |date=2005-08-01 |title=A photometric survey of stars with circumstellar material |url=https://www.aanda.org/articles/aa/abs/2005/32/aa2401-04/aa240 ...2005-10-10 |title=Formation and Evolution of Planetary Systems: Cold Outer Disks Associated with Sun-like stars |journal=The Astrophysical Journal |volume=6 ...

...tions with the [[Atacama Large Millimeter Array]] found no evidence of a [[circumstellar dust]] disk.{{sfn|Marino|Wyatt|Kennedy|Kama|2020|p=6071}} ...s a disk of matter surrounding a star. Planets are thought to form in such disks.{{sfn|Gargaud|Amils|Quintanilla|Cleaves|2011|loc=Protoplanetary Disk}}}},{{ ...