85 citations · 716 across the 21 of their papers we have counts for
13 papers · 1 filter
New Evidence on the Origin of Solar Wind Microstreams/Switchbacks
Pankaj Kumar, Judith T. Karpen, Vadim M. Uritsky +4
Microstreams are fluctuations in the solar wind speed and density associated with polarity-reversing folds in the magnetic field (also denoted switchbacks). Despite their long heri…
Plasmoids, Flows, and Jets During Magnetic Reconnection in a Failed Solar Eruption
Pankaj Kumar, Judith T. Karpen, Spiro K. Antiochos +3
We report a detailed analysis of a failed eruption and flare in active region 12018 on 2014 April 3 using multiwavelength observations from SDO/AIA, IRIS, STEREO, and Hinode/SOT. A…
Kink Oscillation of a Flux Rope During a Failed Solar Eruption
Pankaj Kumar, Valery M. Nakariakov, Judith T. Karpen +2
We report a decaying kink oscillation of a flux rope during a confined eruptive flare, observed off the solar limb by SDO/AIA, that lacked a detectable white-light coronal mass eje…
Quasiperiodic Energy Release and Jets at the Base of Solar Coronal Plumes
Pankaj Kumar, Judith T. Karpen, Vadim M. Uritsky +3
Coronal plumes are long, ray-like, open structures, which have been considered as possible sources for the solar wind. Their origin in the largely unipolar coronal holes has long b…
From Pseudostreamer Jets to CMEs: Observations of the Breakout Continuum
Pankaj Kumar, Judith T. Karpen, Spiro K. Antiochos +3
The magnetic breakout model, in which reconnection in the corona leads to destabilization of a filament channel, explains numerous features of eruptive solar events, from small-sca…
First Detection of Plasmoids from Breakout Reconnection on the Sun
Pankaj Kumar, Judith T. Karpen, Spiro K. Antiochos +2
Transient collimated plasma ejections (jets) occur frequently throughout the solar corona, in active regions, quiet Sun, and coronal holes. Although magnetic reconnection is genera…