UKSP Nuggets
No. 349, “Warm UV Loops Heated by Small-Scale Cancellation Events,” by S. Şahin and V. Yurchyshyn: Precisely locating warm coronal loops helps identify the source(s) of excitation.
No. 348, “Multiple Regions of Shock-accelerated Particles during a Solar Coronal Mass Ejection,” by D.… continue to the full article
No. 347, “Persistent quasi-periodic pulsations detected during the large X8.2 solar flare,” by Laura Hayes and Peter Gallagher: The most beautiful flare has the most beautiful pulsations!
No. 346, “Is the coronal magnetic field braiding?” by Markus Aschwanden. An iconic cartoon does not relate well to the observations.… continue to the full article
99. Preflare and flare turbulence in the transition region
by Natasha Jeffrey, Lyndsay Fletcher, Nicolas Labrosse (Glasgow) and Paulo Simões (MacKenzie).
High cadence flare observations with IRIS provide evidence for transition region heating by turbulence.
http://www.uksolphys.org/?p=15656
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UKSP Nuggets are published on a monthly basis highlighting solar physics research led from the UK.… continue to the full article
No. 345, “A Energetic Pre-flare: Electron Distributions in Magnetic Reconnection Outflows,” by Marina BATTAGLIA, Eduard KONTAR, and Galina MOTORINA. Assessing energy partition in a very interesting pre-impulsive flare development.
No. 344, “Linear Polarization in H-alpha Flares,” by Tomoko KAWATE and Yoichiro HANAOKA.… continue to the full article
No. 343, “Short-period Waves”, by Sijie YU and Bin CHEN. New decimetric imaging spectroscopy suggests Alfvenic energy transport in solar flares.
No. 342, “The Interesting RHESSI/SAS Archive”, by Hugh Hudson and Martin Fivian. The full mission database shows RHESSI to have been very stable geometrically.… continue to the full article
98. Observing and Modelling a Flux Rope in the Corona
by Alexander James, Lucie Green, Gherardo Valori, and Lidia van Driel-Gesztelyi (MSSL/UCL).
Reconstructing a pre-eruptive high-altitude flux rope that formed by reconnection in the corona.
http://www.uksolphys.org/?p=15179
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UKSP Nuggets are published on a monthly basis highlighting solar physics research led from the UK.… continue to the full article
No. 342, the first of 2019: “The Interesting RHESSI/SAS Archive”, by Hugh Hudson and Martin Fivian. The full mission database shows RHESSI to have been very stable geometrically.
Three Nuggets in December 2018:
No. 341, “Homologous White Light Solar Flares”, by Paolo Roman and Abouazza Elmhamdi.… continue to the full article
97. Jet formation and evolution due to 3D magnetic reconnection
by Viktor Fedun, Gary Verth (Sheffield), J. J. González-Avilés (IGUM-UNAM), F. S. Guzmán (IFM-UMSNH), S. Shelyag (Deakin) and S. Regnier (Northumbria).
Numerical simulations show the importance of the Lorentz force for chromospheric jets.… continue to the full article
No. 340, “The flight of FOXSI-3”, by Lindsay Glesener and Noriyuki Narukage: single-photon counting and direct imaging across hard and soft energies.
No. 339, “Stellar Flares and Starspots”, by Lauren Doyle: stellar flares don’t spatially coincide with their giant spots.
See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets
listing the current series, 2008-present, and
http://sprg.ssl.berkeley.edu/~tohban/nuggets/
for the original series, 2005-2008.… continue to the full article
We announce 3 new HMI Science Nuggets for November 2018.
#114: “What We Learned from a Long-term Study of Sunspot Physical Parameters”, contributed by Jing Li (hmi.stanford.edu/hminuggets/?p=2707)
#115: “Investigation of White-light Emission in Circular-ribbon Flares”, contributed by Yongliang Song (hmi.stanford.edu/hminuggets/?p=2725)
#116: “Limb Flare Loops Observed by SDO Instruments”, contributed by S.… continue to the full article