Last 15 days

General News/UKSP Business:


Meetings/Workshops/Summer Schools:


General News/UKSP Business:

Opportunity for teams and individuals to register their interest in participating in SKA Science Data Challenge 2

from Astrolists [September 16, 2020]

Details of the second SKA Science Data Challenge have been announced which will see participants analyse a simulated datacube 1 TB in size, in order to find and characterise the neutral hydrogen content of galaxies across a sky area of 20 square degrees.

Neutral hydrogen – or HI – exists in large quantities beyond the visible edges of most star-forming galaxies. Emitting light at a fixed radio wavelength during occasional electron ‘spin-flips’, HI traces the rotation of galaxies, allowing astronomers to infer the amount of mass – both visible and dark – contained within. The unprecedented sensitivity of the SKA will be used to map HI out to the formation of the first galaxies, just 380,000 years after the Big Bang. This period, known as “Cosmic Dawn”, began some 13.5 billion years ago. The challenge dataset will be a simulation of an SKA HI observation up to a distance of 4 billion light years.

In order to provide such a large dataset for analysis, the SKA has teamed up with high performance computing facilities around the world. Participants will be invited to compete in teams and create accounts at one of those facilities, on which the data will be accessed and processed directly.

Teams and individuals are asked to register their interest here so that the amount of computational resources required can be gauged.

Further details of the challenge can be found in the SKA’s Contact magazine (issue 5) at


New UKSP Nugget #113

from Iain Hannah [September 25, 2020]

113. Probing small-scale solar magnetic fields
by Mykola Gordovskyy and Philippa Browning (Manchester), Sergiy Shelyag (Deakin), Vsevolod Lozitsky (Kyiv)

A new method to detect strong sub-resolution magnetic flux elements.


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

Iain Hannah and Lyndsay Fletcher

New RHESSI Science Nuggets

from Hugh Hudson [September 22, 2020]

No. 382, “SOL2013-11-10 Eruptive Circular-ribbon Flare with Extended Remote Brightenings,” by Chang LIU et al.: a circular-ribbon event can launch an eruption by breaking through its separatrix dome.

No, 383, “Energy Partitioning in a Nonthermally Dominated Two-loop Solar Flare,” by Galina MOTORINA et al.: Modeling the prpagation of energy via GX Simulator in an early-impulsive flare.

No. 384, “Sunspot Differential Rotation in an X-class Flare,” by Richard GRIMES et al.: Observations suggesting how the coronal tail can wag the photospheric dog.

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

Meetings/Workshops/Summer Schools:

European Astronomical Society Annual Meeting 2021 – call for session proposals

from Ineke De Moortel [September 15, 2020]

The European Astronomical Society Annual Meeting, previously known as the European Week of Astronomy and Space Science (EWASS) will take place in Leiden, the Netherlands, on 28 June – 2 July 2021. The meeting is organized by the European Astronomical Society (EAS), in collaboration with the Royal Dutch Astronomical Society (KNA).

The call for special sessions is now open and I would like to encourage you to consider submitting a solar physics session:

The deadline for session proposals is 30 Sept.

Online Advanced Study Program on Helicities in Astrophysics and Beyond

from Kirill Kuzanyan [September 14, 2020]

Following the preliminary announcement we are organizing the Online Advanced Study Program on Helicities in Astrophysics and Beyond.

We aim for not just an online replacement of traditional off-line meetings such as Helicity Thinkshops but more flexible communication involving rather broader community, by scientific interests, age, geographic coverage and experience in science, which would never physically gather for a traditional off-line focus event. The format of this activity is seen as a flexible communication platform rather than just a handful of meetings, so a wide bunch of scientists and students can optionally attend, participate and communicate with each other.

The proposed schedule of the Program will be spread over approximately 8 weeks between September through November/December 2020 with one or two sessions per week. Each session can be formed of either one 60+ minute talk, or two 30-40 minute talks with complementary discussion. We expect at least 15-20 presentations of various formats over the Program. The timing of each session can be arranged by convenience of the speaker and the community with account of their time zones. Afterwards, the lecture materials, such as podcasts, presentations files (at least brief) may be published fully or partly online. If you would like to give a talk, please contact the Scientific Program Committee (SPC) by email

The first 90-min session is planned on Friday 25 September starting at 13:00UTC. The Program will start with 60 min talk by Dr David MacTaggart (Glasgow, UK) “Magnetic winding – a key to unlocking topological complexity in flux emergence”, then followed at 14:00 UTC by Dr Julia Thalmann (Graz, Austria) “Magnetic helicity as indicator for solar eruptivity”.

The information about the Program and updates will be posted on
If you are interested please register at There will be information about the forthcoming events and access details sent around to registered participants.

Kirill Kuzanyan (IZMIRAN, Moscow, Russia),
on behalf of Online Organization Committee

European Space Weather Symposium 2020 (ESWS2020) – Registration Deadline 25th September 2020

from Natasha Jeffrey [September 14, 2020]

This is the final reminder of the registration deadline for the European Space Weather Symposium 2020 (ESWS2020) to be held via the Zoom platform 02-06 November 2020. Full details and updated information as it becomes available can be found here:

Registration instructions can be found here: – note that you must be registered in order to receive the Zoom links for joining each of the meeting days/sessions.

Please keep checking on the website for continued updates and information including the release of the programme before the end of September.

We are looking forward to seeing you, virtually, 02-06 November 2020 on Zoom.

Best wishes,


Dr Mario M. Bisi
ESWS2020 PC Chair
ESWS2020 OOC Vice Chair
On behalf of the ESWS2020 PC and OOC


Postdoc Fellow at the Institute for Astronomy (Pukalani, Hawai‘i) – DKIST Observation and Deep Learning

from Xudong Sun [September 17, 2020]

The Institute for Astronomy (IfA) at the University of Hawaiʻi (UH) invites applications for a postdoctoral fellow position in solar physics, with a focus on using deep learning methods to interpret observations from the Daniel K. Inouye Solar Telescope (DKIST).

The postdoctoral fellow is a non-regular, full-time, limited term (up to two (2) years in duration with possibility of extension for an additional year), RCUH non-civil service position. The position is located at the IfA Advanced Technology Research Center in Pukalani, Maui, Hawai‘i.

The successful candidate will work with Dr. Xudong Sun and several National Solar Observatory (NSO) scientists, in close collaboration with other IfA and UH computer science faculty. The candidate is expected to obtain and analyze spectropolarimetry data of the solar photosphere using traditional inversion and deep learning methods. For more information, please contact Dr. Xudong Sun (

Requirements: PhD from an accredited college or university in Physics, Astronomy, or related field (PhD candidates may apply but must submit evidence of PhD completion upon hire). One to three (1-3) years of research experience in solar physics or related field, with at least one (1) first-authored, peer-reviewed article in accredited scientific journals. Proficiency in scientific programming with Python. Demonstrated ability to analyze solar spectropolarimetry data. Demonstrated ability to conduct independent research and collaborate with colleagues.

Applicants should submit the following documents online: 1) Cover Letter, 2) Resume, 3) Three recommendation letters, 4) Copy of Degree(s)/Transcript(s)/Certificate(s), 5) List of Publications, 6) Statement of Research Interests. Please visit (Job Posting: #220421) for more details.

Application deadline is October 14, 2020, or until filled. Applications received after this deadline may be considered only if the position is not filled or up to the date a selection has been approved by the RCUH (whichever comes first).

Postdoctoral Research Associate at Durham University

from Natasha Jeffrey [September 15, 2020]

We are advertising an 18 month position for a postdoctoral researcher in the department of mathematical sciences at Durham university. The role is funded by the American Air force and is co-supervised by Dr Christopher Prior at Durham university and Dr David MacTaggart at Glasgow university. The closing date for applications is October 11th, ideally starting soon afterwards.

The role concerns the development of a predictive method for coronal active region eruptions, using a combination of numerical magnetic flux emergence studies and observed topological inputs (magnetic helicity and magnetic winding). The role will involve the development and execution of numerical simulations charting the rise of magnetic flux ropes from the upper convection zone into the solar corona. This modelling will be coupled with analysis of magnetogram data to predict what can be inferred about the structure of the emerging magnetic field.

For more information, see the job description or contact Dr Christopher Prior.