Multi-wavelength and Stereoscopic observations of a coronal jet supporting the emerging flux reconnection model

Details Multi-wavelength and Stereoscopic observations of a coronal jet supporting the emerging flux reconnection model Multi-wavelength and Stereoscopic observations of a coronal jet supporting the emerging flux reconnection model

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh13b1940l&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH13B-1940

Astronomy and Astrophysics

Astrophysics

[7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7526] Solar Physics, Astrophysics, And Astronomy / Magnetic Reconnection, [7549] Solar Physics, Astrophysics, And Astronomy / Ultraviolet Emissions

Scientific paper

We have investigated a coronal jet near the limb on 2010 June 27 by Hinode/X-Ray Telescope (XRT), EUV Imaging Spectrograph (EIS), Solar Optical Telescope (SOT), SDO/Atmospheric Imaging Assembly (AIA), and STEREO. From EUV (AIA and EIS) and soft X-ray (XRT) images we identify the erupting jet feature in cool and hot temperatures. It is noted that there was a small loop eruption at the low temperature from the SOT observation before the jet eruption. Using the high temporal and multi wavelength AIA images, we found that the hot jet preceded its associated cool jet. The jet also shows the helical-like structures during the rising period. According to the spectroscopic analysis, the jet structure changes from blue shift to red one with time, implying the helical structure of the jet. The STEREO observation, which enables us to observe this jet on the disk, shows that there was a dim loop associated with the jet. Comparing observations from the AIA and STEREO, the dim loop corresponds to the jet structure which implies the heated loop. Considering that the structure of its associated active region seen in STEREO is similar to that in AIA observed 5 days before, we compared the jet morphology on the limb with the magnetic fields extrapolated from a HMI vector magnetogram observed on the disk. Interestingly, the comparison also shows that the open field corresponds to the jet which is seen as the dim loop in STEREO. Our observations (XRT, SDO, SOT, and STEREO) are well consistent with the numerical simulation of the emerging flux reconnection model predicted.

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