Enhanced He{I} Absorption at the Feet of Solar X-Ray Loops

dc.contributor.author	Venkatakrishnan, P
dc.contributor.author	Sakurai, T
dc.contributor.author	Suematsu, Y
dc.contributor.author	Ichimoto, K
dc.date.accessioned	2008-07-25T05:47:50Z
dc.date.available	2008-07-25T05:47:50Z
dc.date.issued	1996
dc.identifier.citation	Publications of the Astronomical Society of Japan, Vol. 48, No. 1, pp. L1 - L4	en
dc.identifier.issn	0004-6264
dc.identifier.uri	http://hdl.handle.net/2248/2881
dc.description.abstract	A comparison of He{I} spectroheliograms and Yohkoh soft X-ray images of active regions indicates that He{I} absorption is enhanced at the feet of hot X-ray loops. It is suggested that the conduction of heat from the loops into the transition region at their feet would produce enhanced transition-region emission around 50 eV that would in turn cause enhanced excitation of He{I} leading to the excess He{I} absorption that is observed.	en
dc.format.extent	858710 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of Japan	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1996PASJ...48L...1V	en
dc.subject	Sun:chromosphere	en
dc.subject	Sun:corona	en
dc.subject	Sun:spectra	en
dc.subject	Sun:transition region	en
dc.subject	Sun:x rays	en
dc.title	Enhanced He{I} Absorption at the Feet of Solar X-Ray Loops	en
dc.type	Article	en