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Prof V Zharkova
No more applications being accepted
Competition Funded PhD Project (Students Worldwide)
About the Project
Project Description
Solar flares are magnificent manifestations of abrupt explosions in the Sun affecting the whole solar atmosphere, interior and the interplanetary space. During these energetic events there is an abrupt and powerful conversion of magnetic energy into energy of large shocks, mass eruptions, energetic particles, strongly increased ultra-violet, X-ray, gamma-ray, optical and radio radiation. All these are emitted from the Sun into the interplanetary space affecting communications around the Earth, manned satellites and aircrafts, the Earth atmosphere (Aurora Borealis) bombarding its habitat and power stations if they are on a path of these eruptions. Similar flaring events but of larger scales much (up to 3 order of magnitude) are also observed from many stars indicating flaring processes to be wide spread in the Universe.
The PhD project will be a numerical investigation of high energy (hard X-ray, gamma-ray, radio) and optical emission produced during solar and stellar flares using kinetic and radiative transfer theories. Possible thesis topics will be the investigation of magnetic reconnection with kinetic methods as possible mechanism causing these abrupt explosions and energisation of the ambient plasma, investigation of non-thermal and thermal processes leading to the observed radiation from X-rays to optical emission, non-equilibrium radiative transfer for flaring plasmas comprising of hydrogen, helium and metals and developing diagnostics methods for detection of these processes from spectral observations in different electro-magnetic ranges originating from the whole atmosphere of a star from the corona to the photosphere.
The potential candidate will be skilled in numerical analysis and simulations, as well as have a background in physics and/or computational mathematics. The project will involve the analysis of numerical simulation results and their comparison with solar and stellar observations from satellites and ground-based telescopes.
Informal Enquiries
Enquiries regarding this studentship should be made to: [Email Address Removed]
Eligibility criteria:
Applicants should hold a first or upper second class honours degree (in a relevant subject) from a British higher education institution, or equivalent. Students who are not UK/EU residents are eligible to apply, provided they hold the relevant academic qualifications, together with an IELTS score of at least 6.5.
To apply, contact Karen Vacher to request the appropriate application form, quoting the advert reference above, via email to [Email Address Removed] or by using the application link on this page.
Deadline for applications: 07 April 2014
Start Date: 1 October 2014
Solar flares are magnificent manifestations of abrupt explosions in the Sun affecting the whole solar atmosphere, interior and the interplanetary space. During these energetic events there is an abrupt and powerful conversion of magnetic energy into energy of large shocks, mass eruptions, energetic particles, strongly increased ultra-violet, X-ray, gamma-ray, optical and radio radiation. All these are emitted from the Sun into the interplanetary space affecting communications around the Earth, manned satellites and aircrafts, the Earth atmosphere (Aurora Borealis) bombarding its habitat and power stations if they are on a path of these eruptions. Similar flaring events but of larger scales much (up to 3 order of magnitude) are also observed from many stars indicating flaring processes to be wide spread in the Universe.
The PhD project will be a numerical investigation of high energy (hard X-ray, gamma-ray, radio) and optical emission produced during solar and stellar flares using kinetic and radiative transfer theories. Possible thesis topics will be the investigation of magnetic reconnection with kinetic methods as possible mechanism causing these abrupt explosions and energisation of the ambient plasma, investigation of non-thermal and thermal processes leading to the observed radiation from X-rays to optical emission, non-equilibrium radiative transfer for flaring plasmas comprising of hydrogen, helium and metals and developing diagnostics methods for detection of these processes from spectral observations in different electro-magnetic ranges originating from the whole atmosphere of a star from the corona to the photosphere.
The potential candidate will be skilled in numerical analysis and simulations, as well as have a background in physics and/or computational mathematics. The project will involve the analysis of numerical simulation results and their comparison with solar and stellar observations from satellites and ground-based telescopes.
Informal Enquiries
Enquiries regarding this studentship should be made to: [Email Address Removed]
Eligibility criteria:
Applicants should hold a first or upper second class honours degree (in a relevant subject) from a British higher education institution, or equivalent. Students who are not UK/EU residents are eligible to apply, provided they hold the relevant academic qualifications, together with an IELTS score of at least 6.5.
To apply, contact Karen Vacher to request the appropriate application form, quoting the advert reference above, via email to [Email Address Removed] or by using the application link on this page.
Deadline for applications: 07 April 2014
Start Date: 1 October 2014
Funding Notes
The studentship includes a full stipend, paid for three years at RCUK rates (in 2014/15 this is 13,863 pa) and Home/EU fees. Overseas candidates are also eligible to apply.
References
V.V.Zharkova, Particle kinetics and dynamics in flaring atmospheres ( monograph), by Wiley and Sons, July 2012, 455 pp (monograph http://www.wiley.com/WileyCDA/WileyTitle/productCd-3527408479.html
Zharkova V.V., Meshalkina N.A., Kashapova L.K., Kuznetsov A.V. and Altyntsev A.T. (2011): "Diagnostics of electron beam properties from the simultaneous HXR and MW emission observed from the flare of 10 March 2001", Astronomy and Astrophysics, 532, 17 http://adsabs.harvard.edu/abs/2011A&A...532A..17Z
Zharkova V.V., Kashapova L.K., Chornogor, S.N. and Adrienko, O.V. (2011): "The effect of energetic particle beams on the chromospheric emission of the 2004 July 25 flare", Monthly Notices of the Royal Astronomical Society, 411, 1562 http://adsabs.harvard.edu/abs/2011MNRAS.411.1562Z
Zharkova V.V., Meshalkina N.A., Kashapova L.K., Kuznetsov A.V. and Altyntsev A.T. (2011): "Diagnostics of electron beam properties from the simultaneous HXR and MW emission observed from the flare of 10 March 2001", Astronomy and Astrophysics, 532, 17 http://adsabs.harvard.edu/abs/2011A&A...532A..17Z
Zharkova V.V., Kashapova L.K., Chornogor, S.N. and Adrienko, O.V. (2011): "The effect of energetic particle beams on the chromospheric emission of the 2004 July 25 flare", Monthly Notices of the Royal Astronomical Society, 411, 1562 http://adsabs.harvard.edu/abs/2011MNRAS.411.1562Z
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