A New Technique for Deriving Prominence Mass from SOHO/EIT Fe XII (19.5 Nanometers) Absorption Features

Details A New Technique for Deriving Prominence Mass from SOHO/EIT Fe XII (19.5 Nanometers) Absorption Features A New Technique for Deriving Prominence Mass from SOHO/EIT Fe XII (19.5 Nanometers) Absorption Features

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...618..524g&link_type=abstract

The Astrophysical Journal, Volume 618, Issue 1, pp. 524-536.

Astronomy and Astrophysics

Astronomy

11

Sun: Corona, Sun: Coronal Mass Ejections (Cmes), Sun: Prominences

Scientific paper

It is presently unclear what role prominences play in the initiation and dynamics of coronal mass ejections (CMEs), although erupting prominences are strongly correlated with CMEs. The masses of prominences involved in CMEs are not generally measured, but the accurate determination of such masses may help in assessing the dynamical importance of prominences in CME events. In the technique for deriving prominence mass introduced in the present work, we use observations of coronal radiation in the Fe XII (19.5 nm) spectral line, which is absorbed by prominence material. This new method allows us to consider the effects of both foreground and background radiation in our calculations, and it can be applied to both quiescent and erupting prominences by using two versions of the method, which we label the ``spatial-interpolative'' version and the ``temporal-interpolative'' version. When both versions can be applied to the same event, we find that the temporal-interpolative approach yields the more accurate results. We have applied both versions to an erupting prominence observed on 1999 July 12 (this prominence has an associated CME), and we find that the two approaches result in similar mass determinations: (6.0+/-2.5)×1014g for the temporal-interpolative approach and (7.4+/-4.6)×1014g for the spatial-interpolative approach.

Affiliated with

Also associated with

No associations

Rating

A New Technique for Deriving Prominence Mass from SOHO/EIT Fe XII (19.5 Nanometers) Absorption Features does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A New Technique for Deriving Prominence Mass from SOHO/EIT Fe XII (19.5 Nanometers) Absorption Features, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A New Technique for Deriving Prominence Mass from SOHO/EIT Fe XII (19.5 Nanometers) Absorption Features will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-895431