Dear Colleagues,
The Coronal Loops Workshop series, inaugurated in Paris (2002), has been tremendously successful in bringing together researchers from all over the world to discuss current problems related to the physics of closed magnetic structures in the solar corona, and to present their progress toward solving them. The Workshops have also provided an excellent forum for young researchers to participate in discussions and to showcase their work. The previous Workshop in the series (Loops VIII) was held in Palermo, in June 2017 (http://www.astropa.unipa.it/CLW2017/CLW2017.html).
The Steering Committee for the Coronal Loops Workshops now invites proposals to host the 9th Workshop in the series (Loops IX), which will be convened in 2019.
Letters of Intent to submit a proposal are optional, but would be useful to the Steering Committee if sent no later than July 13th. Full proposals must be submitted on or before July 27th.
Proposals should be no more than 3 pages in length and must include:
* A description of the proposed location (including accessibility from major transport hubs).
* The preferred dates, avoiding conflicts with other major community meetings in 2019.
(e.g. EGU [Apr. 7 - 12]; IAU Cambridge [Apr. 14 - 19]; CESPM [May. 6 - 10]; NAM/UKSP [Jun. 30 - Jul. 4]; IAUS 354 [Jun. 30 - Jul. 6]; AOGS [Jul. 28 - Aug. 2]; Hinode 13 [Sept. 2 - 6])
* A description of the venue, meeting room, and facilities.
* An overview of the local accommodation and dining options.
* Transport between the accommodation and the workshop venue (e.g. a walk, bus ride, etc).
* An estimate of the total cost of the workshop.
* An estimate of the registration fee (assuming 60 participants).
* Who will Chair the SOC/LOC?
* Any other comments that you think would be helpful to the Steering Committee in support of your proposal.
Please send letters of intent, full proposals, and requests for a copy of the Workshop Guidelines, to Steve Bradshaw (Steering Committee Chair: stephen.bradshaw@rice.edu mailto:stephen.bradshaw@rice.edu ).
With best wishes,
Steve Bradshaw
(on behalf of the Coronal Loops Workshops Steering Committee)
Dr. Stephen J. Bradshaw
(Associate Professor of Physics and Astronomy)
Department of Physics and Astronomy (MS 108)
Rice University,
6100 Main Street,
Houston,
TX 77005,
USA.
Tel: +1 713 348 4045
Email: mailto:stephen.bradshaw@rice.edu stephen.bradshaw@rice.edu
Web: solar.rice.edu
Other significant conflicts include the SPD and SHINE meetings.
The SPD meeting will be one of the first three weeks in June, most likely the third week.
The dates being considered for the SHINE meeting are: June 16-21 July 14-19 July 21-26
Thanks, Jim
From: Loops loops-bounces@solar.physics.montana.edu On Behalf Of Stephen Bradshaw Sent: Monday, June 18, 2018 3:18 PM To: loops@solar.physics.montana.edu Subject: [Loops] Call for Proposals to Host the 9th Coronal Loops Workshop in 2019
Dear Colleagues,
The Coronal Loops Workshop series, inaugurated in Paris (2002), has been tremendously successful in bringing together researchers from all over the world to discuss current problems related to the physics of closed magnetic structures in the solar corona, and to present their progress toward solving them. The Workshops have also provided an excellent forum for young researchers to participate in discussions and to showcase their work. The previous Workshop in the series (Loops VIII) was held in Palermo, in June 2017 (http://www.astropa.unipa.it/CLW2017/CLW2017.html).
The Steering Committee for the Coronal Loops Workshops now invites proposals to host the 9th Workshop in the series (Loops IX), which will be convened in 2019.
Letters of Intent to submit a proposal are optional, but would be useful to the Steering Committee if sent no later than July 13th. Full proposals must be submitted on or before July 27th.
Proposals should be no more than 3 pages in length and must include:
* A description of the proposed location (including accessibility from major transport hubs).
* The preferred dates, avoiding conflicts with other major community meetings in 2019.
(e.g. EGU [Apr. 7 - 12]; IAU Cambridge [Apr. 14 - 19]; CESPM [May. 6 - 10]; NAM/UKSP [Jun. 30 - Jul. 4]; IAUS 354 [Jun. 30 - Jul. 6]; AOGS [Jul. 28 - Aug. 2]; Hinode 13 [Sept. 2 - 6])
* A description of the venue, meeting room, and facilities.
* An overview of the local accommodation and dining options.
* Transport between the accommodation and the workshop venue (e.g. a walk, bus ride, etc).
* An estimate of the total cost of the workshop.
* An estimate of the registration fee (assuming 60 participants).
* Who will Chair the SOC/LOC?
* Any other comments that you think would be helpful to the Steering Committee in support of your proposal.
Please send letters of intent, full proposals, and requests for a copy of the Workshop Guidelines, to Steve Bradshaw (Steering Committee Chair: stephen.bradshaw@rice.edumailto:stephen.bradshaw@rice.edu).
With best wishes,
Steve Bradshaw (on behalf of the Coronal Loops Workshops Steering Committee)
Dr. Stephen J. Bradshaw (Associate Professor of Physics and Astronomy)
Department of Physics and Astronomy (MS 108) Rice University, 6100 Main Street, Houston, TX 77005, USA.
Tel: +1 713 348 4045 Email: stephen.bradshaw@rice.edumailto:stephen.bradshaw@rice.edu Web: solar.rice.edu
Hi Everyone
I have a new paper just published which may be of your interest:
Effect of Transport Coefficients on Excitation of Flare-induced Standing Slow-mode Waves in Coronal Loops
https://doi.org/10.3847/1538-4357/aac38a
Abstract Standing slow-mode waves have been recently observed in flaring loops by the Atmospheric Imaging Assembly of the Solar Dynamics Observatory. By means of the coronal seismology technique, transport coefficients in hot (~10 MK) plasma were determined by Wang et al., revealing that thermal conductivity is nearly suppressed and compressive viscosity is enhanced by more than an order of magnitude. In this study, we use 1D nonlinear MHD simulations to validate the predicted results from the linear theory and investigate the standing slow-mode wave excitation mechanism. We first explore the wave trigger based on the magnetic field extrapolation and flare emission features. Using a flow pulse driven at one footpoint, we simulate the wave excitation in two types of loop models: Model 1 with the classical transport coefficients and Model 2 with the seismology-determined transport coefficients. We find that Model 2 can form the standing wave pattern (within about one period) from initial propagating disturbances much faster than Model 1, in better agreement with the observations. Simulations of the harmonic waves and the Fourier decomposition analysis show that the scaling law between damping time (Td) and wave period (P) follows Td ~ P^2 in Model 2, while Td ~ P in Model 1. This indicates that the largely enhanced viscosity efficiently increases the dissipation of higher harmonic components, favoring the quick formation of the fundamental standing mode. Our study suggests that observational constraints on the transport coefficients are important in understanding both the wave excitation and damping mechanisms.
Thank you
Best Regards
Tongjiang
------------------- Tongjiang Wang
NASA GSFC - Code 671 Bldg 21 - RM 022 Greenbelt, MD 20771
Tel. 301-286-4168 tongjiang.wang@nasa.gov
loops@solar.physics.montana.edu