Month: March 2017

Postdoctoral position at Leeds

We are advertising a 2 year postdoctoral position, funded by STFC, to work on planetary dynamos in the Department of Applied Mathematics, University of Leeds. The project forms part of the STFC Consolidated Grant awarded to the department. Further details of the post, including application details, can be found at https://jobs.leeds.ac.uk/vacancy.aspx?ref=MAPMA1053

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Requests for talks at NAM/UKSP2017 Parallel Session: Is the Sun in Transition? The Unusual Cycle 24, and Implications for the Solar-Stellar Connection

We invite applications for contributed talks to this UKSP parallel session at NAM2017. It will run over two 90-minute slots on the afternoon of Tuesday 4th July. Our aim is to bring together scientists from all areas of the solar and heliospheric communities to consider results from the wide variety of data that bear on the unusual Cycle 24, its causes, and what those results might signal for the next cycle. We would particularly like to encourage young members of our community (PhD students and postdocs) to request talks.

Further details of the session may be found on the conference website at:
https://nam2017.org/science/parallel-sessions/details/2/27

If you have any questions, please do not hesitate to contact Bill Chaplin (w.j.chaplin@bham.ac.uk). We look forward to seeing you at the meeting!

Bill Chaplin, Louise Harra, Rachel Howe, Duncan Mackay… continue to the full article

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First announcement for the Fourth UK-Ukraine-Spain Meeting on Solar Physics and Space Science (UKUS)

First announcement for the Fourth UK-Ukraine-Spain Meeting on Solar Physics and Space Science (UKUS)
Kyiv, Ukraine
Monday 28th August – Friday 1st September 2017

Important deadlines
Registration deadline – 1 June 2017
Abstract submission deadline – 15 June 2017

The meeting will cover a broad range of aspects of solar physics, space science and solar-terrestrial relations. We aim to include every side of solar and space research, including observations, theory, and numerical modelling. The main idea behind the meeting is to treat the entire solar-terrestrial domain as one system, rather than each region independently.

The participants of the UKUS usually come from different backgrounds, therefore the meeting will be divided into a number of different topics highlighting a number of areas of expertise.

The most of the oral presentations will be scheduled in the morning sessions, followed by dedicated discussion meetings in the groups relating to the workshop objectives in the afternoon session. For the morning presentations, we foresee one-two invited speaker per topic, who should introduce their expertise to the participants. Contributed talks will be scheduled after the invited lecture. The afternoons are foreseen to have a more open character.

Our aim is to develop new collaborative projects leading to publications and grant applications. Enough discussion time will also be scheduled, to ensure sufficient interaction between the scientists, and allow for the generation of ideas for collaboration.

Tentative Programme:
– Dynamic processes in the Earth ionosphere
– MHD waves – coupling between lower solar atmosphere and corona (observations, theory, numerics)
– Solar energetic processes: dynamics of a small and large scale eruptive events
– Multi-scale plasma waves in the Sun-Earth system

http://ssg.group.shef.ac.uk/Conferences/Ukraine_UK_2017/index.htmlcontinue to the full article

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NAM session – second announcement

Abstracts are invited for the NAM 2017 session ‘Latest Trends In Observing And Understanding The Dynamics Of The Solar Atmosphere: From MHD Waves To Small-Scale Transients’.

The Sun is a highly structured and dynamic body, exhibiting a wide range of waves, instabilities, and transient phenomena (e.g., Ellerman bombs, swirls, spicules) which are all likely important for the transfer of energy to the chromosphere, transition region, and corona. The inference of properties (density, magnetic field) of wave-guides from models which assume small-scale perturbations against a static background has proved successful over recent years; however, if one observes the photosphere (specifically in Active Regions) using high-resolution ground-based data, one would find anything but a stable background at the foot-points of these magnetically dominated regions. How these two pictures (an unpredictable lower solar atmosphere and an upper atmosphere stable on time-scales of minutes) of the solar atmosphere couple is still unknown. This session will bring together experts from across the solar physics community to review recent advances in the field and discuss future improvements.

https://nam2017.org/science/parallel-sessions/details/2/28continue to the full article

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Two RHESSI Science Nuggets

No. 294, “Edward Chupp”

No. 295, “Radio Emissions from Double RHESSI TGFs”, by Andrey Mezentsev and Thomas Gjesteland: Lightning helps with microsecond timing calibrations, and is really interesting as a phenomenon of high-energy astrophysics.

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.

We publish these at roughly two-week intervals and welcome contributions,
which should be related, at least loosely, to RHESSI science.… continue to the full article

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Preliminary Announcement of “Helicity Thinkshop 3” 19-23 November 2017, Tokyo, Japan

Helicities (kinetic, magnetic, current, cross, etc.), as well as energies, are fundamental quantities of hydrodynamics (HD) and magnetohydrodynamics (MHD). In helical turbulence, mean-field structures (global vorticity, mean magnetic field, etc.) can be generated through a dynamo action by turbulent motions. Therefore, the dynamic and magnetic activities of the Sun and stars are intimately related to turbulent helicities. These relationships have been extensively investigated, both theoretically and observationally.
In the past, two Helicity Thinkshops, mainly on solar physics, were held in 2009 and 2013 at the National Astronomical Observatory of China (NAOC) at Beijing, China (Chair: Hongqi Zhang). They originated from a Chapman Conference on Magnetic Helicity in Space and Laboratory Plasmas held at Boulder, USA, in 1998 (Chair: Alexei Pevtsov). This time we organize a Helicity Thinkshop in Tokyo, Japan.

The aims of Helicity Thinkshop 3 are
(i) to share frontier knowledge on the topic of helicity stemming from observational investigations in astrophysics and geophysics, and from numerical simulations and experiments in fluids and plasmas;
(ii) to promote closer collaboration between different research fields involved in helicity studies (e.g., solar/stellar/geo, theory/modeling/experimental/observations);
(iii) to construct models of phenomena potentially influenced by helicity whose underlying physical mechanisms are not entirely understood.

Topics to be discussed
– insights on and estimates of helicity in the Sun and solar wind, helical structures on Earth and other astrophysical bodies;
– role of helicities in solar and stellar flares and in coronal mass ejections with an emphasis on space weather phenomena and their coupling with the Earth environment;
– role of helicities in dynamo theories and numerical modelling;
– sources of helicities in astro/geophysical context;
– future directions in helicity studies.

In order to enhance interdisciplinary communication, all speakers of the Thinkshop are expected to present their talks in plain, generic physics language.

Host Institutes:
Institute of Industrial Science (IIS), University of Tokyo
National Astronomical Observatory (NAOJ)

Sponsors:
IIS, University of Tokyo
Japan Society for the Promotion of Science (JSPS, for participants from Japan)
Russia Foundation for Basic Research (RFBR, for participants from Russia)

Scientific Organizing Committee:
Axel Brandenburg (Sweden/USA), Manolis Georgoulis (Greece), Kirill Kuzanyan (Russia), Raffaele Marino (France), Alexei Pevtsov (USA/Finland), Takashi Sakurai (Japan), Dmitry Sokoloff (Russia), Nobumitsu Yokoi (Chair, Japan), Hongqi Zhang (China)

Local Organizing Committee:
Nobumitsu Yokoi (Chair, University of Tokyo), Takashi Sakurai (NAOJ), Yoichiro Hanaoka (NAOJ), Masaoki Hagino (NAOJ), Shin Toriumi (NAOJ)

Venues of the Helicity Thinkshop 3:
Institute of Industrial Science (IIS), University of Tokyo
National Astronomical Observatory of Japan (NAOJ)

Preliminary Schedule:
Sunday, 19 Nov. Registration at IIS
from Monday, 20 Nov. to Thursday, 23 Nov. Scientific Talks and Discussions
including one session at NAOJ and tour to Solar Observatory

Registration fee will be in the range of $50-100 excluding the banquet.
The details of the registration procedure will be given later in forthcoming announcement.

Have you any questions or comments, please contact Nobumitsu Yokoi:
nobyokoi (at) iis.u-tokyo.ac.jp or Kirill Kuzanyan: kuzanyan (at) gmail.com… continue to the full article

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Advances in Space Research – Special Issue on MHD Wave Phenomena in the Solar Interior and Atmosphere (Deadline extended)

Original contributions and review papers related to the MHD Wave Phenomena in the Solar Interior and Atmosphere are solicited for a special topical issue of Advances in Space Research.

This thematic issue is focused on studies of the various MHD wave processes in the solar interior and exterior. It is expected that the published articles will provide new insight on the mechanisms of excitation of MHD waves in the solar atmosphere, their role in triggering localized energetic events and the energy and momentum transport from photosphere to chromosphere and further to the solar corona. Articles on magnetic fields modeling, current development of the models to replicate the impulsive heating of the solar chromosphere, and repetitive magnetic reconnections processes are also welcome.

The manuscript submission site is at ees.elsevier.com/asr/ (Advances in Space Research). Please select “Waves in Solar Atmosphere” in the special issue drop-down for article type. Submitted papers must be written in English and should include full affiliation addresses for all authors. Only full-length papers will be considered for publication, subject to peer review by a minimum of two reviewers. There are no page limits although the length of the paper should be appropriate for the material being presented. The deadline for submissions is 31 May 2017. Papers will be published electronically as soon as they are accepted. The printed issue will be assembled within a reasonable time with late papers being printed in regular issues of ASR. All articles will be typeset at no cost to the author; there is a nominal charge for printing color figures although there is no charge for color figures in the electronic version. The general format for submission of papers can be found on the ASR Elsevier web site at www.journals.elsevier.com/advances-in-space-research/

Dr. Viktor Fedun (v.fedun@sheffield.ac.uk) and Dr. Abhishek K. Srivastava (asrivastava.app@iitbhu.ac.in) are the Guest Editors for this special issue.
Questions can be directed to Drs. Fedun or Srivastava or to the ASR Co-Editor for Special Issues, Dr. Peggy Ann Shea (sssrc@msn.com).… continue to the full article

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UKMHD 2017 – Durham University – Reminder

This is just a quick reminder of the upcoming UKMHD 2017 meeting being hosted at Durham University on 20-21 April 2017. The deadline for abstract submission is Friday 31 March 2017, followed by a registration deadline of Monday 10 April 2017.

Accommodation and registration will be waived for a limited number of early career scientists, on a first-come-first-served basis.

For further details and registration:
http://bit.ly/ukmhd2017

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NAM2017 SolMag parallel session: Generation and evolution of Solar and Stellar Magnetic Fields, and Implications for the Solar-Stellar Connection

We welcome abstract submissions to the parallel session entitled ‘Generation and evolution of Solar and Stellar Magnetic Fields, and Implications for the Solar-Stellar Connection’

We aim to bring together experts in the solar and stellar communities to review recent advances in modeling the generation and evolution of stellar magnetic fields and the observational signatures detectable by modern instruments.

We have two sessions, one on Monday afternoon and one on Tuesday morning. The deadline for submission is 14th April 2017.

Further details can be found on the conference website or at the address given below.

If you have any questions please e-mail a-m.broomhall@warwick.ac.uk

Anne-Marie Broomhall, Paul Bushby, Louise Harra, Sean Matt, David Pascoe, Nick Wright

https://nam2017.org/science/parallel-sessions/details/2/30continue to the full article

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