E-mail: P.Petkaki@damtp
Personal website: Homepage
Research Group:Atomic Astrophysics
Office Tel: 01223 760393
Office: F1.05
Dr Panagiota Petkaki
Career
- 2010 - present: Research Scientist
- 2008 - 2009: Senior Scientific Officer, British Antarcic Survey
- 2001 - 2008: Higher Scientific Officer, British Antarcic Survey
- 1998 - 2001: Research Associate, Space & Atmospheric Physics, Imperial College
- 1997 - 1998: Lecturer, Dept. of Physics, University of Calabria, Italy
- 1995 - 1997: Research Associate, Plasma Astrophysics, University of Calabria, Italy
- 1995 - 1995: Research Assistant, Department of Physics & Astronomy, University of Glasgow,
Research
My research expertise is in astrophysical and solar/space plasma
physics, both in theoretical modeling, mainly using numerical
simulations, and in analysis and interpretation of spacecraft
measurements of particles and fields. I am interested in the kinetic processes of
astrophysical/space plasma such as wave-particle interactions (through
for example ion-acoustic waves) and how they can act to help release energy in
magnetised plasmas. I am also interested in the
acceleration and transport
of charged particles (production of
energetic particles), in energy releasing phenomena such as solar
flares and magnetic reconnection events in the magnetosphere. My current research involves analysing
SDO observations of solar flares in the Solar Corona.
Training/Teaching Activities
I enjoy teaching. I have diverse teaching experience as I have
lectured to undergraduate classes, tutored small groups of students, proposed and managed undergraduate and postgraduate student research projects.
I have supervised students of the Natural Sciences Part I
Mathematics course for Trinity
College, Jesus College
and Clare College, and St Edmund's College,
University of Cambridge .
Selected Publications
- Petkaki, P., Del Zanna, G., Mason, H. E., Bradshaw, S.J., 2012,
SDO AIA and EVE observations and
modelling of solar flare loops, A&A, 547, A25
- C. Burge, P. Petkaki, A.L. MacKinnon, 2012, Particle Acceleration in the Presence of Weak Turbulence
at an X-Type Neutral Point, Solar Physics, doi:10.1007/s11207-012-9963-2
- P. Petkaki and A.L. MacKinnon, 'Acceleration of charged particles by fluctuating and steady electric fields in a X-type magnetic field', Adv.Space Research, 48, 884, 2011 ADS NASA
- P. Petkaki, and M. P. Freeman, `Nonlinear dependence of ion-acoustic anomalous resistivity on electron drift velocity', The Astrophysical Journal, 686, 686, 2008 ADS NASA
- P. Petkaki and A.L. MacKinnon, `Fluctuating electric
fields particle acceleration at a magnetic field null point', AIP CP1039 Proceedings, 26, 2008 ADS NASA
- P. Petkaki and A.L. MacKinnon, `Particle acceleration from fluctuating electric
fields at a magnetic field null point', Astronomy & Astrophysics, 472, 623, doi:10.1051/0004-6361:20066961, 2007 ADS NASA
- P. Petkaki, M. P. Freeman, A.W. Walsh, `Cluster observations of electromagnetic waves in and around a
possible reconnection diffusion region in the Earth's magnetotail current sheet',
Geophys. Res. Lett., 33, L16105, doi: 10.1029/2006GL027066, 2006 ADS NASA
- P. Petkaki, M. P. Freeman, T. Kirk, C. E. J. Watt, and R. B. Horne,
`Anomalous resistivity and the non-linear evolution of the ion-acoustic instability',
Journal of Geophysical Research, 111, A01205, doi:10.1029/2004JA010793, 2006. ADS NASA
- P. Petkaki, C. E. J. Watt, R. B. Horne and M. P. Freeman,
`Anomalous resistivity in non-Maxwellian plasmas',
Journal of Geophysical Research, 108(A12), 1442,
doi:10.1029/2003JA010092, 2003 ADS NASA
- P. Petkaki, `Polarization Properties of ULF waves in the Jovian Middle
Magnetosphere', Journal of Geophysical Research, 107, E10, 5087,
doi: 10.1029/2001JE001824, 2002 ADS NASA
- P. Petkaki and M. Dougherty, `ULF Wave Observations
in Jupiter's Magnetosphere', Advances of Space Research, 28,
909, 2001 ADS NASA
- P. Petkaki and M. Dougherty, `Waves close to the crossover
frequency in the Jovian Middle Magnetosphere', Geophys. Res.
Lett., 28, 211, 2001 ADS NASA
- F. Malara, P. Petkaki, and P. Veltri, `Dissipation of Alfvén Waves in Force-free Magnetic Fields: Competition between Phase Mixing and Three-dimensional Effects,
The Astrophysical Journal, 533, 523, 2000 ADS NASA
- P. Petkaki and M. Dougherty, `Wave Signatures in the
Jovian Magnetosphere', Planetary and Space Science, 48, 341, 2000 ADS NASA
- F. Malara, P. Veltri and P. Petkaki, `Fast Dissipation of
Alfv\'en waves in 3D Force-Free Magnetic Structures', Solar Wind 9, 353, 1999 ADS NASA
- P. Petkaki, F. Malara, and P. Veltri , `Topological Formation of Small Scales in Magnetohydrodynamics: A Fast Dissipation Mechanism', The Astrophysical Journal, 500, 483, 1998 ADS NASA
- P. Petkaki, F. Malara, and P. Veltri , 'Coronal Heating by Fast Dissipation of Alfven Waves in 3D Magnetic Fields', Fifth SOHO Workshop, 595, 1997 ADS NASA
- P. Petkaki and A.L. MacKinnon, `Particle acceleration from linear
dynamical collisionless reconnection', Solar Physics, 172, 279, 1997 ADS NASA
- L. Fletcher and P. Petkaki, `Particle acceleration
and transport in reconnecting plasmas', Solar Physics, 172, 267, 1997 ADS NASA
- Brown J.C., Mundell C.G., P. Petkaki, Jenkins G., `The
Optical `Bullets' of SS433 as a Radiative Instability Phenomenon',
Astron. Astrophys. Lett., 296, L45, 1995 ADS NASA
- P. Petkaki and A.L. MacKinnon, `Particle Orbits near
a Neutral Point', Space Science Reviews, 68, 117, 1994 ADS NASA
