Circumstellar disk

Circumstellar disk (7)
Corona (12)
Coronagraph (5)

Synopsis: Space: Space generale: Corona: Circumstellar disk:

Theorists had suggested an escape route for the protoplanets. Their idea was that pressure differences in the disc could spontaneously create vortices trapping the larger dust grains

But is the strange structure really helping to build protoplanets? It is quite far from the star

or all protoplanetary disks around forming stars study author Conel Alexander explained in a press release.##The researchers concluded that a significant portion of Earth s water came from interstellar space by looking at the relative abundance of hydrogen and deuterium.#

or whether it was cooked up in the birth of the Sun.#To find out researchers used mathematical models to#virtually recreate#the young solar system's protoplanetary disk--the cloud around the newborn#Sun. They found that based on the temperature

the whole accretion disk made of surrounding hot gas would glow in ultraviolet rays. Instead, the ultraviolet glow of the dusty disk abruptly drops off toward the center.

The second, smaller black hole orbits in the inner edge of the accretion disk, and has its own mini-disk with an ultraviolet glow. e are excited extremely about this finding

who led the WISE study and whose previous work identifying recycled planetary dust, known as debris disks, around close to a hundred other star systems, puts the discovery of the exoplanet in context.

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