Dear all,
Here is the second announcement for the 2011 Loops workshop. Please note that the online version (www.loops2011.org) includes a "Table of models and observables" within the session "Integrating Models and Observations". That session will be lead by Amy Winebarger. She has written a letter describing the goals of the session (http://www.uibcongres.org/img/coronal/letter.pdf). Please read it if you are planning to attend and contribute.
Looking forward to seeing you all in Mallorca. Best regards, Ignacio
SOLAR CORONAL LOOPS WORKSHOP V - Second announcement
This is the second announcement for the fifth Loops Workshop to be held in Palma de Mallorca, Spain, June 29-July 2, 2011, hosted by the Universitat de les Illes Balears. The loops workshops are a series of highly focused meetings dealing with the observation and modeling of magnetically confined plasma in the solar upper atmosphere.
Registration is now open at the website: www.loops2011.org
We are also pleased to announce that we have limited funds from ESA and the US NSF to support the travel expenses of students and early post-docs.
The deadlines for abstract submission are: - March 15 2011, if requesting travel support - April 15, 2011, everyone else.
For this meeting the SOC has defined a series of topics and questions and speakers have been invited to lead each session. We encourage the submission of abstracts that contribute to the topics described below. To allow for extended discussion sessions the number of speakers will be limited to about 40. We anticipate having a poster session to accommodate other topics of interest.
These are the planned sessions and confirmed invited speakers:
* The Coronal Heating Problem: Talks that will address the current state of the coronal heating problem, including recent progress and interesting theoretical paradigms. Invited speakers: Iñigo Arregui (Illes Balears), Peter Cargill (St. Andrews)
* The Properties of the Solar Corona: Talks that will explore the boundaries of our understanding of the solar corona and its relationship to the transition region and chromosphere. Invited speakers: Giulio Del Zanna (Cambridge), Susanna Parenti (Royal Observatory Belgium)
* Integrating Models and Observations: A systematic look at coronal heating models and what they predict for solar observables. Invited speaker: Amy Winebarger (NASA)
* Open Questions in Coronal Loops: A Series of Debates.
- Flows vs Waves. Are they exclusive? Can we distinguish between them? What role does each play in loop dynamics? Invited speakers: Scott McIntosh (HAO), Erwin Verwichte (Warwick)
- Spicules and Evaporation. How does mass enter the corona? What is the relative contribution of spicules and evaporation? Are they compatible? Do all loops have spicular counterparts? What can we infer about the source of the heating from the observations? Invited speakers: Bart De Pontieu (Lockheed Martin), Spiros Patsourakos (Ioannina)
- The DEM spectrum from isothermal to multi-thermal. What is the cross-field thermal structure of coronal loops? How does it vary in space and time? Invited speakers: Markus Aschwanden (Lockheed Martin), Paola Testa (CfA)
- Steady vs. Impulsive Heating. What is the timescale between heating events in active regions? Invited speakers: Piet Martens (Montana), Fabio Reale (Palermo)
Please, notice that the MHD waves and Seismology of the Solar Atmosphere Workshop (www.buks2011.org) will be held at the same venue from June 27 to 29, 2011. A joint session will take place on 29 June afternoon.
The Scientific Organizing Committee Steve Bradshaw Jim Klimchuk Helen Mason Joan Schmelz Jaume Terradas Ignacio Ugarte-Urra, Chair Harry Warren
Local Organizing Committee: José Luis Ballester, Chair Ramón Oliver Iñigo Arregui Jaume Terradas Antonio Díaz Marc Carbonell Samuel Rial
Dear Friends,
I hope you are all getting excited about Loops V next summer! Below is a description of one of the sessions of the workshop. In this session, we will attempt to come to a consensus on the predictions of different models and how they relate to observations. I hope you choose to participate. See you in Spain!
In the Loop V workshop next summer, there will be a session on relating the predictions of coronal heating models to solar observations. The key to discriminating between the different heating models is to identify distinguishing observables and then make those observations. For instance, both effectively steady and nanoflare heating models can produce quasi-steady intensities. Observing quasi-steady intensities, then, does not help us determine which heating scenario is most likely. Models may, however, predict different velocities or different emission measure distributions.
The goal of this session of the loops workshop is to develop a comprehensive table of observables for different heating models. An example of such a table is on the Loops V website. This is just a first stab at what the table may look like, we need input from the different modelers in the community to complete and revise this table.
If you are modeling coronal loops, please consider simulating these different observables (intensity as a function of time, density, velocity at the footpoints, expected non-thermal velocities, differential emission measure and any additional observable that you believe could act a discriminator) for your chosen heating scenario. If you are not planning to submit a talk about your model that would fit into this session, please consider making a single slide that can be shown during the discussion session.
If you are observing coronal loops, you aren't off the hook! It will be just as important to compile a similar list of observables for different coronal structures and some estimate of the uncertainty in the observation. For instance, what is the shape of the DEM that is measured in the core loops as opposed to the EUV loops or fans? What are the observed velocities in these structures?
At the end of the Loops V workshop, hopefully we will have come to a consensus on the relationship between various heating scenarios and observables. We hope to publish our combined results (i.e., the table) with all contributors as co-authors.
Warm Regards, Amy Winebarger
-- Dr. Amy R. Winebarger NASA Marshall Space Flight Center VP 62 Huntsville, AL 35812 Voice : 256-961-7509 Fax : 256-961-7216
loops@solar.physics.montana.edu