B. Schmieder, Mrs. - Dr.
Observatoire de Paris
http://www.astro.uio.no/~schmiede
       
       
Session 2 - Speaker

Spectro-photometry of Elleman bombs observed with THEMIS
Pariat E.(1), Schmieder B.(1), Berlicki A.(2), Lopez Ariste A.(3)
1. Observatoire de Paris, Meudon, France
2. Observatory of Wroclaw, Poland
3. THEMIS, Tenerife, Spain
       

During coordinated campaigns with THEMIS and space missions (TRACE, SOHO) emerging flux was observed in multi-wavelengths. Ellerman bombs (EB) have been identified in TRACE 1600 AA and in chromospheric lines. The EB life times are shorter than usual (< 10 min). The Halpha and Ca II (8542 AA) lines present two asymmetric peaks respectively at 0.8 AA and 0.5 AA. This asymmetry is due to vertical motions in the chromosphere.

Vector magnetic fielsd measured in the photosphere are consistent with previous results indicating the presence of bald-patches under the EBs and consequently the emergence of horizontal flux tubes from below the photosphere.