Affordable Access

Measurements with STEREO/COR1 data of drag forces acting on small-scale blobs falling in the intermediate corona

Authors
  • Sergio, Dolei
  • Alessandro, Bemporad
  • Daniele, Spadaro
Type
Published Article
Journal
ScienceOpen Astronomy & Astrophysics
Publisher
ScienceOpen
Publication Date
Feb 01, 2014
Volume
562
Pages
74–74
Source
SETI Institute
License
Unknown

Abstract

In this work we study the kinematics of three small-scale (0.01 R⊙) blobs of chromospheric plasma falling back to the Sun after the huge eruptive event of June 7, 2011. From a study of 3D trajectories of blobs made with the Solar TErrestrial RElations Observatory (STEREO) data, we demonstrate the existence of a significant drag force acting on the blobs and calculate two drag coefficients, in the radial and tangential directions. The resulting drag coefficients CD are between 0 and 5, comparable in the two directions, ...

Report this publication

Statistics

Seen <100 times