Category: Nuggets

UKSP Nuggets

European Solar Physics Nugget #4 – First detection of the magnetic field in solar vortices

European Solar Physics Nugget #4 – First detection of the magnetic field in solar vortices

The fourth European Solar Physics Nugget is now available to read.

Nugget #4 comes from Mariarita Murabito (INAF – Osservatorio Astronomico di Roma, Italy) and collaborators, who discuss measurements of polarisation signatures in rotating structures observed in the chromosphere.

The nugget can be found at: https://est-east.eu/nuggets/46-espn/1116-espn-4-first-detection-of-the-magnetic-field-in-solar-vortices

The aim of the European Solar Physics (ESP) Nuggets is to aid in the communication of recent science results from the European Solar Physics community. More information on the ESP Nuggets can be found at: https://www.est-east.eu/nuggetscontinue to the full article

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RHESSI Nuggets in December 2021

No. 423, “Resolving two distinct thermal X-ray components in a compound solar flare,” by Zhenjun ZHAO and Rui LIU: Superhot coronal sources may be independent loop systems.

No. 422, “Bridging solar flares to coronal mass ejections,’’ by Markus ASCHWANDEN: The Neupert effect allows us to trace coronal mass ejections seamlessly.

We welcome contributions to the RHESSI Nuggets, and the topics may wander some distance away from specifically RHESSI results if they are generally interesting. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets for these and others. Comments about specific flares can often be found by searching for their SOLyyyy-mm-dd identifier from this home page.… continue to the full article

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New UKSP Nugget #118

118. Tour de France of compressive waves in the Sun’s corona
by Dmitrii Kolotkov and Valery Nakariakov (Warwick)

Using fast wave trains to probe the transverse structure of the waveguiding coronal plasma.

https://www.uksolphys.org/?p=19879

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UKSP Nuggets are published on a monthly basis highlighting solar physics research led from the UK.

https://www.uksolphys.org/uksp-nuggets/

Iain Hannah and Lyndsay Fletcher

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~… continue to the full article

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RHESSI Nuggets in November 2021

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets

No. 421, “The Jakimiec Diagnostic Diagram,” by Hugh HUDSON: The joint variation of GOES temperature and emission measure discloses new features via an old tool.

No. 420, “First look at ALMA/Hinode/IRiS microflares,” by Toshifumi SHIMIZU et al.: High-resolution ALMA and multiwavelength observations of microflaring.

We welcome contributions to the RHESSI Nuggets, and the topics may wander some distance away from specifically RHESSI results if they are generally interesting. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets for these and others. Comments about specific flares can often be found by searching for their SOLyyyy-mm-dd identifier from this home page.… continue to the full article

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New UKSP Nugget #117

117. A numerical tool for obtaining wave eigenvalues in non-uniform solar waveguides
by Samuel Skirvin, Viktor Fedun and Gary Verth (Sheffield)

How to understand MHD waves without solving dispersion equations.

https://www.uksolphys.org/?p=19786

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

UKSP Nuggets are published on a monthly basis highlighting solar physics research led from the UK.

https://www.uksolphys.org/uksp-nuggets/

Iain Hannah and Lyndsay Fletcher
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~… continue to the full article

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New Hinode/EIS Nuggets in November

A new Hinode/EIS nugget by Yajie Chen, Hui Tian, Xianyu Liu of Peking University and Wenxian Li, Xianyong Bai of National Astronomical Observatories, Chinese Academy of Sciences is now available here:

http://solarb.mssl.ucl.ac.uk/SolarB/nuggets/nugget_2021nov_b.jsp

A new Hinode/EIS nugget by Jae-Ok Lee of the Korea Astronomy and Space Science Institute is now available here:

http://solarb.mssl.ucl.ac.uk/SolarB/nuggets/nugget_2021nov_a.jsp

The archive of EIS nuggets is located here:
http://solarb.mssl.ucl.ac.uk/SolarB/eisnuggets.jsp

We welcome contributions from the community. Please contact Deb Baker at UCL/MSSL.… continue to the full article

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RHESSI Nuggets in October 2021

No. 418 , “A Non-PFSS Global Coronal Model,” by Oliver RICE and Anthony YEATES. Modeling as convenient as PFSS but much more realistic

No. 419, “Thomson scattering near sunspots,” by Pascal SAINT-HILAIRE et al.: Completing the modeling of low-coronal Thomson polarimetry – 91 years after Minnaert

We welcome contributions to the RHESSI Nuggets, and the topics may wander some distance away from specifically RHESSI results if they are generally interesting. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets for these and others. Comments about specific flares can often be found by searching for their SOLyyyy-mm-dd identifier from this home page.… continue to the full article

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Recent solar radio nuggets

First Frequency-time-resolved Imaging Spectroscopy Observations of SolarRadio Spikesby D. L. Clarkson et al.* https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3080

Properties of High-Frequency Type II Radio Bursts and Their Relation tothe Associated Coronal Mass Ejectionsby A.C. Umuhire et al.* https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3067

The active region source of a type III radio storm observed by ParkerSolar Probe during encounter 2by L. Harra et al* https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3058continue to the full article

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European Solar Physics Nugget #3 – High-resolution data reveals the interaction of magnetic fields with a vortex tube

The third European Solar Physics Nugget has now been released.  

Nugget #3 comes from Catherine E. Fischer, Philip Linder (Leibniz Institute for Solar Physics, Germany) and collaborators, who explain the role of vortex tubes in generating granular lanes and their interaction with the magnetic field. 

It can be found at:

https://est-east.eu/nuggets/46-espn/1098-espn-3-high-resolution-data-reveals-the-interaction-of-magnetic-fields-with-a-vortex-tube

The aim of the European Solar Physics (ESP) Nuggets is to aid in the communication of recent science results from the European Solar Physics community. More information on the ESP Nuggets can be found at:

https://www.est-east.eu/nuggetscontinue to the full article

Read more

RHESSI Nuggets in September 2021

https://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets

No. 416, “X-rays from a Type I Radio Burst,” by R. RAMESH. X-ray identification of the last remaining meter-wave burst type.

No. 417, “Manifold Nonthermality,” by Marina BATTAGLIA et al. Even weak events involve multple instances of nonthermality.

We welcome contributions to the RHESSI Nuggets, and the topics may wander some distance away from specifically RHESSI results if they are generally interesting. See

https://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets

for these and others. Comments about specific flares can often be found by searching for their SOLyyyy-mm-dd identifier from this home page.… continue to the full article

Read more