Astrophysics and Space Science

, Volume 280, Issue 4, pp 405–412 | Cite as

Formation of Twisted Elephant Trunks in the Rosette Nebula

  • P. Carlqvist
  • G.F. Gahm
  • H. Kristen


New observations show that dark elephant trunks in the Rosette nebula are often built up by thin filaments. In several of the trunks the filaments seem to form a twisted pattern. This pattern is hard to reconcile with current theory. We propose a new model for the formation of twisted elephant trunks in which electromagnetic forces play an important role. The model considers the behaviour of a twisted magnetic filament in a molecular cloud, where a cluster of hot stars has been recently born. As a result of stellar winds, and radiation pressure, electromagnetic forces, and inertia forces part of the filament can develop into a double helix pointing towards the stars. The double helix represents the twisted elephant trunk. A simple analogy experiment visualizes and supports the trunk model.


Double Helix Electromagnetic Force Analogy Model Molecular Cloud Stellar Wind 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • P. Carlqvist
    • 1
  • G.F. Gahm
    • 2
  • H. Kristen
    • 3
  1. 1.Alfvén LaboratoryRoyal Institute of TechnologyStockholmSweden
  2. 2.SCFAB, Stockholm ObservatoryStockholmSweden
  3. 3.Precise Biometrics ABLundSweden

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