Cannabaceae

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A circumstellar envelope (CSE) is a part of a star that has a roughly spherical shape and is not gravitationally bound to the star core. Usually circumstellar envelopes are formed from the dense stellar wind, or they are present before the formation of the star.[1] Circumstellar envelopes of old stars (Mira variables and OH/IR stars) eventually evolve into protoplanetary nebulae, and circumstellar envelopes of young stellar objects evolve into circumstellar discs.[2]

Types of circumstellar envelopes

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See also

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References

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  1. ^ Leao; Patrick De Laverny; Mekarnia; De Medeiros; Benoit Vandame (2007). "The circumstellar envelope of IRC+10216 from milli-arcsecond to arcmin scales". Astronomy & Astrophysics. 455 (1): 187–194. arXiv:astro-ph/0703390. Bibcode:2006A&A...455..187L. doi:10.1051/0004-6361:20054577. S2CID 18535333.
  2. ^ Leslie Looney; Lee Mundy; Jack Welch (2003). "Envelope Emission in Young Stellar Systems, A Sub-Arcsecond Survey of Circumstellar Structure". The Astrophysical Journal. 592 (1): 255–265. arXiv:astro-ph/0303640. Bibcode:2003ApJ...592..255L. doi:10.1086/375582. S2CID 15365363.
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source: https://en.wikipedia.org/wiki/Circumstellar_envelope

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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