Solar Physics

, Volume 48, Issue 2, pp 381–387

Expansion of an X-ray coronal arch into the outer corona

  • David M. Rust
  • Ernest Hildner

DOI: 10.1007/BF00152003

Cite this article as:
Rust, D.M. & Hildner, E. Sol Phys (1976) 48: 381. doi:10.1007/BF00152003


An asymmetric, expanding arch, photographed in the inner corona with an X-ray telescope on 13 August, 1973, is identified as the source of the mass ejected in a white light transient in the outer corona. The morphology, angular position, estimated mass and apparent rate of upward acceleration of the lower coronal arch are similar to those of the arch seen passing through the outer corona. The mass of material removed from the lower corona is estimated at 2 × 1015 g, and the upward movement is consistent with a constant acceleration of 12.5 m s−2 between 1.3 and 5 R.

Copyright information

© D. Reidel Publishing Company 1976

Authors and Affiliations

  • David M. Rust
    • 1
  • Ernest Hildner
    • 2
  1. 1.American Science and Engineering, Inc.CambridgeU.S.A.
  2. 2.High Altitude Observatory, National Center for Atmospheric ResearchBoulderU.S.A.

Personalised recommendations