The growing-up of a star: the disc around MWC 147

Artist's impression of the disc of matter surrounding the young stellar object MWC 147 as inferred from observations made with ESO's Very Large Telescope Interferometer. Thanks to these observations, astronomers have probed the inner parts of the disc of material surrounding the MWC 147, witnessing how it gains its mass before becoming an adult.

A slice has been cut to show the inner structure better. The disc extends out to 100 times the distance between the Earth and the Sun (100 Astronomical Units — 100 AU). It is inclined by about 50 degrees as seen from Earth. The dust in the outer disc emits mainly at mid-infrared wavelengths, while close to the star there is also strong near-infrared emission from very hot gas. This gas is transported towards the forming star, increasing its mass at a rate of 7 millionths of the mass of the Sun — or about 2 times the mass of the Earth — per year.

Të drejtat:


Rreth fotografisë

Tipi:Punim artistik
Data e Publikimit:29 Janar 2008
Publikime të ngjashme:eso0803
Përmasat:1363 x 1089 px

Rreth objektit

Emri:MWC 147
Tipi:Milky Way : Star : Evolutionary Stage : Young Stellar Object
Distanca:2500 vite dritë

Formate Fotografish

JPEG i madh
431,7 KB


269,9 KB
455,0 KB
644,1 KB
715,0 KB
964,3 KB


Shih dhe