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== External Links ==
== External Links ==
* [http://www.uapress.arizona.edu/onlinebks/PPIV/chap13.pdf|The Structure and Evolution of Envelopes and Disks in Young Stellar Systems]
* [http://www.uapress.arizona.edu/onlinebks/PPIV/chap13.pdf The Structure and Evolution of Envelopes and Disks in Young Stellar Systems]


[[Category:Stellar evolution]]
[[Category:Stellar evolution]]

Revision as of 15:46, 29 February 2012

Circumstellar envelope is the part of the star, having roughly spherical shape and not gravitationally bound to the star core. Usually circumstellar envelopes are formed from the dense stellar wind or present before formation of the star. Circumstellar envelopes of the old stars [1] are eventually evolving into Protoplanetary nebulae, and circumstellar envelopes of the young stellar objects [2] are evolving into Circumstellar discs.

Types of circumstellar envelopes

See also

References

  1. ^ Leao; Patrick De Laverny; Mekarnia; De Medeiros; Benoit Vandame (2007). "The circumstellar envelope of IRC+10216 from milli-arcsecond to arcmin scales". arXiv:astro-ph/0703390. {{cite arXiv}}: |class= ignored (help)
  2. ^ Leslie Looney; Lee Mundy; Jack Welch (2003). "Envelope Emission in Young Stellar Systems, A Sub-Arcsecond Survey of Circumstellar Structure". arXiv:astro-ph/0303640. {{cite arXiv}}: |class= ignored (help)