Ellerman Bombs with Jets: Cause and Effect


Autoria(s): Reid, A.; Mathioudakis, M.; Scullion, E.; Doyle, J. G.; Shelyag, S.; Gallagher, P.
Data(s)

20/05/2015

Resumo

Ellerman Bombs (EBs) are thought to arise as a result of photospheric magnetic reconnection. We use data from the Swedish 1-m Solar Telescope(SST), to study EB events on the solar disk and at the limb. Both datasets show that EBs are connected to the foot-points of forming chromospheric jets. The limb observations show that a bright structure in the H$\alpha$ blue wing connects to the EB initially fuelling it,leading to the ejection of material upwards. The material moves along a loop structure where a newly formed jet is subsequently observed in the red wing of H$\alpha$. In the disk dataset, an EB initiates a jet which propagates away from the apparent reconnection site within the EB flame.The EB then splits into two, with associated brightenings in the inter-granular lanes (IGLs). Micro-jets are then observed, extending to500 km with a lifetime of a few minutes. Observed velocities of themicro-jets are approximately 5-10 km s$^{-1}$, while their chromospheric counterparts range from 50-80 km s$^{-1}$. MURaM simulations of quiet Sun reconnection show that micro-jets with similar properties to that of the observations follow the line of reconnection in the photosphere,with associated H$\alpha$ brightening at the location of increased temperature.

Identificador

http://pure.qub.ac.uk/portal/en/publications/ellerman-bombs-with-jets-cause-and-effect(687e4188-0cfd-4043-9b29-1d64787e05d9).html

http://dx.doi.org/10.1088/0004-637X/805/1/64

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

Reid , A , Mathioudakis , M , Scullion , E , Doyle , J G , Shelyag , S & Gallagher , P 2015 , ' Ellerman Bombs with Jets: Cause and Effect ' The Astrophysical Journal , vol 805 , no. 1 , 64 . DOI: 10.1088/0004-637X/805/1/64

Palavras-Chave #Astrophysics - Solar and Stellar Astrophysics
Tipo

article