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Newer Developments in Beryllium (1938)

Sawyer, C. B. ; Kjellgren, B. R.

s.l. : American Chemical Society

Industrial & engineering chemistry 30 (1938), S. 501-505

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ISSN: 1520-5045

Source: ACS Legacy Archives

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1021/ie50341a006

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A white-light/Fe X/Hα coronal transient observation to 10 solar RadII (1983)

Wagner, W. J. ; Illing, R. M. E. ; Sawyer, C. B. ; [et al.]

Springer

Solar physics 83 (1983), S. 153-166

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ISSN: 1573-093X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Multi-telescope observations of the coronal transient of 15–16 April, 1980 provide simultaneous data from the Solar Maximum Mission Coronagraph/Polarimeter, the Solwind Coronagraph, and the new Emission Line Coronagraph of the Sacramento Peak Observatory. An eruptive prominence-associated white light transient is for the first time seen as an unusual wave or brightening in Fe x gl6374 (but not in Fe xiv gl5303). Several interpretations of this fleeting enhancement are offered. The prominence shows a slowly increasing acceleration which peaks at the time of the Fe event. The white light loop transient surrounding the prominence expands at a well-documented constant speed to 10R ⊙, with an extrapolated start time at zero height coincident with the surface activity. This loop transient exemplifies those seen above 1.7R ⊙ in that leading the disturbance is a bright (N e-enhanced) loop rather than dark. This is consistent with a report of the behavior of another eruptive event observed by Fisher and Poland (1981) which began as a density depletion in the lower corona, with a bright loop forming at greater altitudes. The top of the bright loop ultimately fades in the outer corona while slow radial growth continues in the legs.