Category: Nuggets

UKSP Nuggets

Four new RHESSI Science Nuggets

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

No. 428, “Solar Hard X-rays with Insight,” by Wei WANG and Ping ZHANG. A spectacular limb flare introduces Insight/HXMT, a new high-energy observational resource.

No. 429, “Carl Størmer,” by Hugh HUDSON and Lyndsay FLETCHER. Størmer and the theory of particle trapping in magnetic loops.

No. 430, “Sun-as-a-star spectroscopic observations of the line-of-sight velocity of the solar eruption SOL2021-10-28T15:35,” by Yu XU and Hui TIAN. The observation of the full 3D velocity of a CME, for a RHESSI anniversary event.

No. 431, “Thermal/non-thermal with MinXSS and RHESSI,” by Shunsaku NAGASAWA. Time-domain studies of improved X-ray spectra reveal a “super-hot” component.

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 #123

123. Transverse Oscillations of Spicules and Estimating Their Energy Flux
by William Bate (QUB)

High cadence observations show a possible contribution to atmospheric heating.

https://www.uksolphys.org/?p=20701

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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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Solar radio science nuggets

Two recent solar radio science nuggets are available online:

Langmuir-Slow Extraordinary Mode Magnetic Signature Observations with Parker Solar Probe
by A. Larosa et al
https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3267

LOFAR size and shape measurements of solar metric radio burst sources
by Gordovskyy et al
https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3260

——
CESRA Highlights of Solar Radio Physics, aka CESRA Nuggets, are short
communications written in language accessible to a non-expert in the
specific area and designed to keep solar and heliophysics communities
informed and up-to-date about current research. The highlights can be
followed, discussed, commented and shared via
http://www.facebook.com/solarcesra/
and
http://twitter.com/CESRA_community.… continue to the full article

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New UKSP Nugget #122

122. Direct evidence that twisted flux tube emergence creates solar active regions
by David MacTaggart (Glasgow), Chris Prior, Breno Raphaldini (Durham), and Paolo Romano, Salvo Guglielmino (INAF Catania)

A new way of measuring twist is applied to magnetic flux emergence.

https://www.uksolphys.org/?p=20314

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

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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Solar radio science nuggets in March 2022

Spectral Analysis of Solar Radio Type III Bursts from 20 kHz to 410 MHz
by K. Sasikumar Raja et al.*
https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3221

New results from the spectral observations of solar coronal type II
radio bursts
by R. Ramesh et al.*
https://www.astro.gla.ac.uk/users/eduard/cesra/?p=3231

CESRA Highlights of Solar Radio Physics, aka CESRA Nuggets, are short
communications written in language accessible to a non-expert in the
specific area and designed to keep solar and heliophysics communities
informed and up-to-date about current research. The highlights can be
followed, discussed, commented and shared via
http://www.facebook.com/solarcesra/
and
http://twitter.com/CESRA_community.

http://cesra.netcontinue to the full article

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New UKSP Nugget #121

121. Quasi-periodic problems; what’s going on with QPPs?
by Tishtrya Mehta (Warwick)

Clues to the origins of the flare QPP phenomenon from observations of an increasing pulsation period.

https://www.uksolphys.org/?p=20124

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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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New UKSP Nugget #120

120. NuSTAR observations of weak microflares
by Kristopher Cooper and Iain Hannah (Glasgow)

Reaching new limits for wee X-ray flares.

https://www.uksolphys.org/?p=20121

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

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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European Solar Physics Nugget #5 – Exploring Ca II K observations for reconstructions of past irradiance variations

The fifth European Solar Physics Nugget has now been released.

Nugget #5 comes from Theodosios Chatzistergos (Max Planck Institute for Solar System Research, Germany) and collaborators, who show how historical photographic archives of the Sun can help extend solar irradiance measurements back into the past.

It can be found at:

https://est-east.eu/nuggets/46-espn/1155-espn-5

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 Science Nugget No. 426

No. 426, “A demonstration of STIX hard X-ray imaging spectroscopy capabilities for an X-class flare (SOL2021-10-28),” by Andrea BATTAGLIA, Hannah COLLIER, and Säm KRUCKER: STIX imaging of an X-class flare marks its success.

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 #119

119. Solar magnetic vortices
by Suzana Silva , Gary Verth, Viktor Fedun (Sheffield), Erico Rempel (ITA), Sergiy Shelyag (Deakin), Luiz Schiavo (UNESP)

Introducing a practical definition for a vortex in the magnetic field.

https://www.uksolphys.org/?p=19874

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

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

Read more