Dust Disk
NASA, JPL, University of Florida
Larger false-color and black and white images.
Dust Disk and Planets?
In the 1980s, the Infrared Astronomical Satellite (IRAS) revealed an "excess" of far-infrared radiation in the spectrum of AU Mic.
- Hubble Uncovers Dust Disk around a Massive Black Hole
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- Hubble Finds a New Black Hole - and Unexpected New Mysteries ...
In more than one case in the Orion Nebula, all of the gas has been blown away to leave just the dark dust disk with the protostar in the center. One example of a totally exposed dust disk seen almost face-on is shown in the figure above.
As of 2006[update], astronomers have resolved dust disks believed to be Kuiper belt-like structures around nine stars other than the Sun.
Simon Casassus, from the University of Chile, and his team will use ALMA to observe the gas and dust disk around HD142527, a young star that is 400 light years away.
Hidden Planet Shape's Star's Dust Disk
(Added 11/19/05) The top view, taken by NASA's Hubble Space Telescope, is the first visible-light image of a dust ring around the nearby, bright young star Fomalhaut (HD 216956).
Also surrounding 55 Cancri A is a dust disk, which is presumably a regenerated disk, extending out to about 40 astronomical units from the star with an inclination of about 25°.3, 4, 5 ...
In 2006, the dust disk was found around 2M1207, providing evidence for a planet formation about the same as typical stars.2005, Gliese 876 d: In June, a third planet orbiting the red dwarf star Gliese 876 was announced. With a mass estimated at 7.
This artistÕs rendition of 51 OphiuchiÕs inner and outer dust disks illustrates the size difference of their constituent grains. Credit: NASA/JPL-Caltech/T. Pyle (SSC).
Dust disks seen around other stars could be replenished by collisions among Kuiper Belt-type objects, which seems to be common among stars. These collisions offer fundamental clues to the birth of planetary systems.
The Spindle Galaxy, NGC 5866, is a lenticular galaxy with a notable dust disk, seen edge-on. It is considered by some to be a candidate for Messier 102, a galaxy it closely resembles.
Neither has any surrounding dust disk that might indicate a planetary system.
is clearly the larger star, and larger stars evolve faster; one theory is that it is a few times bigger than our Sun, and as it grew into a red giant star, it threw out material that collected around the smaller companion, forming a dust disk around ...
Plausibility is given to the general idea of accretion from dust disks by the existence of such disks around many young stars--a fact established by infrared observations in the 1980s and confirmed visually in at least one case ( Pictoris).
the image is the infrared radiation from the zodiacal dust in our solar system. Infrared studies of the dust in our solar system will give us information about its distribution and composition, and will help us understand the formation of dust disks ...
 See also: Dust, Solar, Planet, Disk, Sun
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