Magnitude 8.34 | ||
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Similar HD 100546, SAO 206462, Protoplanetary disk, HL Tauri, HD 139664 | ||
Zooming in on star hd 142527
HD 142527 is a star in the constellation of Lupus. It is notable for its protoplanetary disk and its discovery has helped refine models of planet formation.
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The young star hd 142527 zoom
Protoplanetary Disk
HD 142527 is an extremely young star, aged about 1 million years old so it retains its protoplanetary disk which has a mass of 15% of the mass of the Sun and a diameter of 980 AU.
The studies have shown eddies and vortex structures forming in the nebulae under the influence of two large planets. The star is important as it allows Astronomers to observe the accretion process in planetary formation.
In early 2013 an article was published by astronomers, working with the ALMA telescope in Chile, which refers to the discovery of two massive flows of matter in the system. Substance consisting of dust and gas, is transferred from the periphery to the center due to gravitational interaction with two giant planets that have a mass several times greater than the mass of Jupiter. Thus, the flows are a kind of "pumps" pumping material from the edge of the center, "feeding" star. The planets themselves have not been detected so far, due to a dense shroud of gas. However, astronomers proposed models that describe their existence.
Also Japanese astronomers have discovered particles of ice in the disk.
