ELFT HÍRADÓ

[Uhlár Karola <uhlar AT konkoly.hu>]

*MTA CSFK CSI
INTÉZETI SZEMINÁRIUM*

Előadó:***Erdélyi Róbert *(University of Sheffield)*
*
Előadás címe: *From MHD Waves to Ellerman Bombs: Small Animals in the 
Big Solar Wave Zoo *

Kivonat:
MHD wave theory predicts at least three distinct eigensolutions in a 
uniform and magnetised plasmas. However, apace (Hinode, SDO, IRIS) and 
ground-based (DST/ROSA, IBIS, CoMP, STT/CRISP) observations have 
provided plenty of compelling evidence of waves present in the highly 
non-uniform and structured solar atmosphere. The detection and analysis 
of waves these waves are challenges on their own. Identification is very 
hard, often debated. First, I'll summarise the recent advances in MHD 
wave theory providing a wide range of visualisation that help us in the 
wave identification. In particular, I'll discuss the so-called sausage 
and kink magneto-acoustic waves, and the much sought-after Alfven waves. 
An accurate understanding of these waves allows us to perform 
sub-resolution solar magneto-seismology (SMS). Next, I will concentrate 
on the role of the various MHD waves, and will discuss the latest status 
on detecting them in a range of solar waveguides (sunspots, pores, 
magnetic bright points, coronal loops). Within the framework of MHD I 
will discuss their origin and generation mechanism of these waves. 
Finally, I will embark on showing how MHD waves help us to diagnose the 
solar plasma and may bring us closer to solving the century-old solar 
atmospheric heating enigma.

Előadás időpontja: *2014. június 12. (csütörtök), 14:00**
*
Előadás helyszíne: MTA CSFK CSI Előadóterme
1121 Budapest, Konkoly T. M. út 15-17.
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fn:Karola Uhlar
n:Uhlar;Karola
org:Konkoly Observatory
adr:;;Konkoly Thege M. u. 13-17.;Budapest;;1121;Hungary
email;internet:uhlar AT konkoly.hu
title:secretary
tel;work:+3613919322
tel;fax:+3612754668
version:2.1
end:vcard