Results 21 to 30 of about 22,877 (292)
The Supernova Remnant CTB104A : Magnetic Field Structure and Interaction with the Environment [PDF]
, 2001 We present new, high resolution 1420 and 408 MHz continuum images and HI and 12CO (J=1-0) spectral line maps of the diffuse supernova remnant CTB104A (G93.7-0.3). Analysis of the complex continuum emission reveals no significant spectral index variations
Brand J. +10 more
core +2 more sources
Symposium - International Astronomical Union, 1996 I review recent observational and theoretical progress in the study of condensations of cool material trapped in the coronae of rapidly rotating stars. Such condensations were discovered over a decade ago, producing transient moving absorption features in the optical Balmerseries lines.
openaire +2 more sources
Laboratory simulations of solar prominence eruptions [PDF]
, 1998 Spheromak technology is exploited to create laboratory simulations of solar prominence eruptions. It is found that the initial simulated prominences are arched, but then bifurcate into twisted secondary structures which appear to follow fringing field ...
Bellan, P. M., Hansen, J. F.
core +1 more source
Dynamic disappearance of prominences and their geoeffectiveness [PDF]
Geofísica Internacional, 2008 We study 14 cases of dynamic “disparition brusque” (DBd), the sudden disappearance of quiescent filaments/prominences, during two solar minima: 1985-1986 and 1994.
Z. Mouradian, L. Taliashvili, J. Páez
doaj +3 more sources
Using Rapid Prosody Transcription to probe little-known prosodic systems: The case of Papuan Malay
Laboratory Phonology, 2020 This paper shows how the Rapid Prosody Transcription method (RPT, cp. Cole & Shattuck-Hufnagel, 2016) can be utilized when investigating the prosodic systems of a little-described language.
Janina Kalbertodt +3 more
doaj +2 more sources
Determination of 3D Trajectories of Knots in Solar Prominences Using MSDP Data [PDF]
, 2010 In this paper we present a new method of restoration of the true thee-dimensional trajectories of the prominence knots based on ground-based observations taken with a single telescope, which is equipped with a Multi-Channel Subtractive Double Pass ...
A. Bemporad +17 more
core +2 more sources
Astronomy & AstrophysicsContext. Space weather and its potential negative consequences for life on Earth have received increasing scientific attention in recent decades. In particular, predicting the onset of coronal mass ejections (CMEs) has become important from a security ...
Furuseth S. V., Aulanier G.
doaj +1 more source
Determination of Prominence Plasma Beta from the Dynamics of Rising Plumes
, 2012 The launch of Hinode satellite led to the discovery of rising plumes, dark in chromospheric lines, in quiescent prominences that propagate from large (~10 Mm) bubbles that form at the base of the prominences.
Hillier, Andrew +2 more
core +1 more source
Helium Emissions Observed in Ground-Based Spectra of Solar Prominences [PDF]
, 2012 The only prominent line of singly ionized helium in the visible spectral range, helium-II 4686 A, is observed together with the helium-I 5015 A singlet and the helium-I 4471 A triplet line in solar prominences.
Bianda, Michele +3 more
core +2 more sources
A multi-viewpoint comparison of the velocity field of propagating coronal disturbances
Astronomy & AstrophysicsSmall-scale propagating disturbances (PDs) are ubiquitous in the solar corona. The method called time-normalised optical flow (TNOF) was developed for mapping PDs velocity fields in time series of extreme-ultraviolet (EUV) images.
Stankovic Nina +5 more
doaj +1 more source