@InProceedings{BalmacedaVourStenDalL:2018:PrCMDi,
author = "Balmaceda, Laura and Vourlidas, Angelos and Stenborg, Guillermo
and Dal Lago, Alisson",
affiliation = "NASA/GSFC and JHU/APL and NRL and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "The Multi-viewpoint CME Catalog: properties of CMEs from dierent
perspectives",
year = "2018",
organization = "Latin American Conference on Space Geophysics, 11. (COLAGE)",
abstract = "Taking advantage of the new Multi-Viewpoint CME (MVC) Catalog
(Vourlidas et al. ApJ 2017), we present the results based on the
comparison of the properties of CMEs from simultaneous
observations of the twin COR2 coronagraphs on board STEREO for the
period 2007-2014 from two dierent vantage points. We focus on the
analysis of angular widths, and radial and expansion speeds
obtained using a supervised image segmentation algorithm, CORSET.
The sample of 460 events detected simultaneously with both
spacecraft at varying separation angles allow us to investigate
the accuracy and constraints of single viewpoint properties that
underlie the bulk of CME research to date and examine the
dependence of the properties on the morphology of the events. Here
we discuss some of the main results: 1) in average, we nd a good
agreement between the radial speeds derived from dierent
perspectives throughout the period under analysis. 2) Projection
eects seem to aect more the CME width determination rather than
speeds. 3) In agreement with early predictions, the expansion
speeds are less aected by projection eects than the radial
speeds.",
conference-location = "Buenos Aires, Argentina",
conference-year = "16-20 abr.",
language = "en",
urlaccessdate = "04 jun. 2024"
}