Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012hell.conf...13t&link_type=abstract
10th Hellenic Astronomical Conference, Proceedings of the conference held at Ioannina, Greece, 5-8 September 2011. Edited by Io
Astronomy and Astrophysics
Astronomy
Scientific paper
We present an analysis of recent observations of several solar jets observed at the solar limb with STEREO A/B and the Solar Dynamics Observatory (SDO). We construct fitted height-time diagrams at all wavelengths and calculate the temporal evolution of the jet speed and acceleration. The first case is a large solar jet observed on 06/30/2010, simultaneously by STEREO & SDO in the north solar pole, at many wavelengths, from 171 to 304 Angstroms. It has a precursor and lasts in total for about 60 minutes, while the main jet reaches a height of 0.3 Ro and a maximum speed of about 250 km/sec. The second sample contains a set of four solar limb jets observed 5 days earlier than the previous one, i.e., 06/25/2010. All jets are observed with SDO while two of them are simultaneously observed with STEREO. Two jets have a precursor and last from 60 - 120 minutes, reaching heights of less than 0.2 Ro. Finally, we analyse a jet observed by STEREO on 11/12/2008 in 174, 195, 284 and 304 Angstroms. The jet reaches a height of 0.25 Ro and a maximum speed of about 150 km/sec. Magnetograms during the jet appearances show the corresponding magnetic topologies. The velocities involved are smaller than the escape speed from the sun at each radius. The results are preliminarily discussed in relation to possible jet formation mechanisms.
Moschou S.
Tsinganos Kanaris
Vourlidas Angelos
No associations
LandOfFree
STEREO and SDO observations of several solar jets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with STEREO and SDO observations of several solar jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and STEREO and SDO observations of several solar jets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-910953