Astrophysics (Index)About

disk

(rotating disk-shaped object such as disk galaxy or circumstellar disk)

The dynamics of a rotating disk consisting of gravitationally-bound of gas and/or objects is relevant to a number of areas of astrophysics, which can borrow from each other. Such disks include circumstellar disks, ring systems, accretion disks (which might be circumstellar but also might surround black holes), and galactic disks. Thus, for example, physics developed for stellar dynamics within disk galaxies may be found applicable to protoplanetary disks and planet formation. Examples of this are the concepts of Lindblad torque and corotation resonance. More astrophysical terms for various such disks:

Some structural characteristics of disks such as asymmetry, blobs, rings, and/or spiral arms may indicate bodies (planets if speaking of a disk surrounding a star, or moons if surrounding a planet) and/or may indicate gravitational instabilities.


(celestial mechanics,dynamics,galaxies,accretion disk,rings)
Further reading:
http://faculty.washington.edu/ivezic/Teaching/Astr509/lecture13.pdf
https://www.tat.physik.uni-tuebingen.de/~kley/publ/proc/0521860156c14_p216-235.pdf

Referenced by pages:
accretion disk
advection dominated accretion flow (ADAF)
bar
broad emission line region
circumplanetary disk
circumstellar disk
column density
computational astrophysics
corotation torque
debris disk
decretion disk
disk galaxy
dynamo
eclipse mapping
elliptical galaxy
epicyclic frequency
final parsec problem
free-fall time
FU Orionis star (FUor)
galactic disk
galaxy
galaxy classification
gravitational instability (GI)
giant planet formation
gravitational instability model
heating
inertial wave
Keplerian disk
Kepler radius
lenticular galaxy (S0)
libration
line tomography
Maxwell-Boltzmann distribution
magnetorotational instability (MRI)
Spindle Galaxy (NGC 5866)
passive dust
point source
polarimetry
protoplanetary disk (PPD)
pseudobulge
vortensity
ring system
RODEO
Rossby wave instability (RWI)
satellite plane problem
Saturn
shearing box
shell star (sh)
spiral arm
spiral density wave
stellar dynamics
super-Earth
systemic velocity
Toomre Q parameter (Q)

Index