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Mysteries of the Sun’s magnetic field III: Understanding stellar activity

Wednesday 17th – Thursday 18th June 2015

Department of Physics, University of Warwick

Organiser: Anne-Marie Broomhall (Physics/IAS, Warwick)

Conference email: D.C.Martin@warwick.ac.uk




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Background and Purpose

For mankind the Sun is the most important star in the universe. Despite being influential to life on Earth many mysteries concerning the Sun’s magnetic field remain unsolved. However, the Sun is just one star and magnetic field-associated variability is frequently observed on other stars. Many other stars have very similar properties to the Sun and we can use observations of these stars to make inferences about the Sun’s magnetic activity. For example, flares substantially larger than even the most energetic flare ever observed on our own Sun are regularly detected on other Sun-like stars, and are usually referred to as superflares. Studying stellar flares can not only tell us about the magnetic fields of stars themselves, but may also provide useful information on the physical processes responsible for flares and space weather on our own Sun. We can, therefore, ask what the chances of a superflare occurring on our own Sun are. However, in order to make inferences concerning the Sun’s magnetic field based on stellar variability the typicality of the Sun’s variability and magnetic field must be established. Studies of stellar flares can also impact predictions for the habitability of exoplanets: If flares on our relatively quiet Sun can disrupt life on Earth the same will be true for other planets. Of course, flares are not the only aspect of stellar activity that can be examined and studies of stellar variability in general allow constraints to be placed on models of both solar and stellar magnetic fields. This meeting will discuss aspects of stellar magnetic activity, both observational and theoretical, and will explore the solar-stellar connection.


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Programme

Time Title Speaker
Wednesday 17th June 2015
10:30 Registration & Welcome Coffee
11:05-11:45 Identifying magnetically manageable stars for radial-velocity follow-up based on their Kepler photometry Raphaëlle Haywood
11:45-12:05 Stellar winds from magnetized stars Giorgios Pantolmos
12:05-12:25 Magnetic activity in short-period binary stars: flares, prominences and quadrupole moments Tom Marsh
12:25-14:00 Lunch Break  
14:00-14:40 Mapping of stellar magnetic fields via the Zeeman Doppler imaging technique Victor See
14:40-15:00 Magnetic fields in white dwarfs: a window into physics under extreme conditions Boris Gaensicke
15:00-15:20 Planetary systems as tracers of magnetism in old white dwarfs Mark Hollands
15:20-15:50 Coffee Break  
15:50-16:10 Understanding sunquake signatures: what can we learn from different methods of sunquake detection Sergei Zharkov
16:10-16:30 Impact and detectability of stellar flares on global mode behaviour Connor Macrae
16:30-16:50 Where are all the asteroseismic magnetic activity cycles? Anne-Marie Broomhall
16:50-17:10 Co-existing fast and slow propagating waves of the extreme-UV intensity in solar coronal plasma structures Yuzong Zhang
17:00 Close
19:30 Dinner TBC
Thursday 18th June 2015
09:00 Coffee  
09:00-09:40 Seismology of slow and kink waves in flare light curves Tom van Doorsselaere
09:40-10:00 QPPs in stellar flares Chloe Pugh
10:00-10:20 Mechanisms for the quasi-periodic modulation of flaring energy releases Val Nakariakov
10:20-11:00 Coffee Break  
11:00-11:40 Superflares in G, K and M Type Dwarfs from Kepler Observations Simon Candelaresi
11:40-12:00 The Stellar Activity - Rotation Relationship Nick Wright
12:00-12:20 Stellar magnetic variability and extreme events Hugh Hudson
12:20-14:00 Lunch Break  
14:00-14:40 Kepler and K2 observations of late type stars Gavin Ramsay
14:40-15:00 Giant flares detected with super-WASP Peter Wheatley
13:00 Farewell Coffee & Close  

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Participants

The symposium will start June 17th, 2015, at 10:30am at the University of Warwick. Note that the university is located at the outskirts of Coventry and not in Warwick. See http://www2.warwick.ac.uk/about/visiting/ for travel details and http://www2.warwick.ac.uk/about/visiting/maps/ for maps of the central campus. In case you come by car, parking is available for delegates at car park 15.

This list of participants is accurate as of May 21st, 2015, 14:46 BST.


Name Affiliation Status
1 Simon Candelaresi
University of Dundee Speaker
2 Victor See University of St Andrews Speaker
3 Gavin Ramsay Armagh Observatory Speaker
4 Tom van Doorsselaere KU Leuven Speaker
5 Connor Macrae University of Hull Speaker
6 Chloe Pugh University of Warwick Speaker
7 Peter Wheatley University of Warwick Speaker
8 Boris Gaensicke University of Warwick Speaker
9 Mark Hollands University of Warwick Speaker
10 Tom Marsh University of Warwick Speaker
11 Tom Louden University of Warwick

Attendee

12 Anne-Marie Broomhall University of Warwick Speaker
13 Melissa Liouw University of Warwick Attendee
14 Valery Nakariakov University of Warwick Attendee
15 Vinesh Rajpaul University of Oxford Attendee
16 Raphaëlle Haywood University of St Andrews Speaker
17 Georgios Pantolmos University of Exeter Speaker
18 David Pascoe University of Warwick Attendee
19 David Armstrong University of Warwick Attendee
20 David Brown University of Warwick Attendee
21 Hugh Hudson UC Berkeley
Speaker
(Thursday only)
22 Yuzong Zhang
Chinese Academy of Sciences Speaker
23 Christopher Goddard University of Warwick Attendee
24 Giuseppe Nistico University of Warwick Attendee
25 Charlotte Norris Imperial College London Attendee
26 Nick Wright University of Hertfordshire
Speaker
(Thursday only)
27 Sergei Zharkov University of Hull Speaker

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Venue and Accommodation

All talks will be held in PS1.28 in the Physical Sciences Building on Campus

The workshop will start with the registration at the University of Warwick. Note that the university is located at the outskirts of Coventry and not in Warwick. See http://www2.warwick.ac.uk/about/visiting/ for travel details and http://www2.warwick.ac.uk/about/visiting/maps/ for maps of the central campus. In case you come by car, parking is available for delegates at car park 15.

Accommodation for invited speakers may be provided at

Radcliffe Training & Conference Centre
The University of Warwick
Gibbet Hill Road
Coventry, CV4 7AL UK
Tel: +44 (0) 24 7647 4711
Fax: +44 (0) 24 7669 4282
Email: radcliffe@warwick.ac.uk

In case you are self-invited, please call the conference centre directly and arrange your stay.


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Contact

Dr Anne-Marie Broomhall
Physics Department
University of Warwick
Coventry CV4 7AL
United Kingdom

e-mail: physics-events-pbp2011@forums.warwick.ac.uk
Phone: +44 (0)24 76574328
Fax: +44 (0)24 76150897

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