We present the first simultaneous observations of chromospheric “ anemone ” jets in solar active regions with Hinode/SOT Ca \emissiontype II H broadband filetergram and Ca \emissiontype II K spetroheliogram on the Domeless Solar Telescope ( DST ) at Hida Observatory .
During the coordinated observation , 9 chromospheric anemone jets were simultaneously observed with the two instruments .
These observations revealed three important features , i.e .
: ( 1 ) the jets are generated in the lower chromosphere , i.e .
these can not be seen in Ca \emissiontype II K _ { 3 } , ( 2 ) the length and lifetime of the jets are 0.4–5 Mm and 40–320 sec , ( 3 ) the apparent velocity of the jets with Hinode/SOT are 3–24 km/s , while Ca \emissiontype II K _ { 3 } component at the jets show blueshifts ( in 5 events ) in the range of 2–6 km/s .
The chromospheric anemone jets are associated with mixed polarity regions which are either small emerging flux regions or moving magnetic features .
It is found that the Ca \emissiontype II K line often show red or blue asymmetry in K _ { 2 } /K _ { 1 } component : the footpoint of the jets associated with emerging flux regions often show redshift ( 2–16 km/s ) , while the one with moving magnetic features show blueshift ( \sim 5 km/s ) .
Detailed analysis of magnetic evolution of the jet foaming regions revealed that the reconnection rate ( or canceling rate ) of the total magnetic flux at the footpoint of the jets are of order of 10 ^ { 16 } Mx/s , and the resulting magnetic energy release rate ( 1.1 - 10 ) \times 10 ^ { 24 } erg/s , with the total energy release ( 1 - 13 ) \times 10 ^ { 26 } erg for the duration of the magnetic cancellations , \sim 130s .
These are comparable to the estimated total energy , \sim 10 ^ { 26 } erg , in a single chromospheric anemone jet .
In addition to Hida/DST Ca \emissiontype II-K Spectroheliogram and Hinode/SOT Ca \emissiontype II H broadband filetergram , we also used Hinode/SOT magnetogram as well as Hida H \alpha filtergram .
An observation-based physical model of the jet is presented .
The relation between chromospheric anemone jets and Ellerman bombs is discussed .