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| Paper: |
Chromospheric Anemone Jets Observed with Hinode/SOT and
Hida Ca II Spectroheliograph |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
95 |
| Authors: |
Morita, S.; Shibata, K.; Ueno, S.; Ichimoto, K.; Kitai, R.; Otsuji, K. |
| Abstract: |
We present the first simultaneous observations of chromospheric\linebreak
“anemone” jets in active regions with the Ca II H broadband
filetergram on the Hinode/SOT and with the Ca II K spetroheliogram on
the Domeless Solar Telescope (DST) at the Hida Observatory. During
coordinated observation period, 9 chromospheric anemone jets were
simultaneously observed with the two instruments. These observations
revealed: (1) the jets are generated in the low chromosphere because
these cannot be seen in Ca II K3, (2) these jets are associated
with mixed polarity regions which are either small emerging flux
regions or moving magnetic features, (3) the Ca II K line often show
red or blue asymmetry in K2/K1 component; the footpoint of
the jets associated with emerging flux regions often show red
asymmetry (2–16 km s-1), while the one with moving magnetic features
show blue asymmetry (∼5 km s-1). The magnetic cancellations were
observed at the footpoint of the jets. The canceling rates are of
order of 1016 Mx s-1, and the resulting magnetic energy release
rate (1.1–10)×1024 erg s-1, with the total energy release
(1–13)×1026 erg for the duration of the magnetic
cancellations, ∼130 s. These are comparable to the estimated
total energy, ∼1026 erg, in a single chromospheric anemone
jet. |
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