Biography Dr. Suli Ma had been a PHD candidate of Yunnan Astronomical Observatory (YNAO) of Chinese Academy of Sciences (CAS) from Mar 2006 to Aug 2010 and a predoc fellow of Harvard-Smithsonian Center for Astrophysics (CfA) from Oct 2008 to Sep 2010. She defended her thesis in Aug 2010 and after that she worked as a postdoc in CfA until the end of Aug 2011. During this period, she mainly worked with professor Jun Lin and Senior Astrophysicist Leon Golub on CMEs, EUV waves and low coronal shocks.
From Sep 2011 to Feb 2019, she taught physics at the school of science in China University of Petroleum (East China). She joined the solar radio group of National Astronomical Observatories (NAOC) of CAS leading by professor Yihua Yan in Mar 2019 and expanded her research to solar radio bursts. In Jan 2022, she moved to the National Space Science Center(NSSC) of CAS along with the group.
Now, she is a visiting researcher of University of Glasgow working with professor Eduard Kontar on solar radio bursts and particle accelerations.
Biography
Dr. Sargam Mulay obtained a Ph.D. in Solar Physics from the University of Cambridge, UK in 2018. She had an opportunity to work with Dr. Helen Mason and Dr. Giulio Del Zanna on the topic of solar active region jets. After completing PhD, she joined as a postdoc at the Inter-University Centre for Astronomy and Astrophysics (IUCAA), Pune, India. She worked with Prof. Durgesh Tripathi for 1.5 years on sigmoid observations. Since 2019, she is a research assistant with Prof. Lyndsay Fletcher at the University of Glasgow, UK and she is working on spectroscopic observations of solar flares.
Research
Her research interest includes observational X-ray and UV spectroscopy, solar radiophysics, reconnection in solar flares, coronal heating, sigmoids and jets in the Solar atmosphere.
During her Ph.D., she focused on understanding the temperature structure of active region jets using data from several space-based observatories such as the SDO (AIA, HMI), Hinode (EIS, XRT), RHESSI, IRIS and WIND/Waves. Combining imaging and spectroscopic observations from multiple instruments facilitated her to measure the physical parameters of jets (temperature, electron number density, filling factor, emission measure, velocities (plane-of-sky, nonthermal and Doppler)) and study their relationship with other phenomena such as H-alpha surges, solar flares, nonthermal type-III radio bursts and soft/hard X-ray emission. This comprehensive investigation of AR jets extended our knowledge and the study provided substantial constraints for theoretical modelling of the jets and their thermodynamic nature.
Link to her Ph.D. thesis – https://www.repository.cam.ac.uk/handle/1810/277700
During her tenure at IUCAA, she worked on the temperature structure of sigmoids during various phases of the solar flare as well as during sigmoid eruption. This study benchmarks different techniques (emission measure and filter-ratio methods) available for temperature estimation in solar coronal structures.
At the University of Glasgow, she has been studying the turbulence in the solar flares using spectroscopic observations from IRIS satellite. The research includes understanding the nature of emission from molecular hydrogen by deriving its physical properties from IRIS spectra.
Room 604
School of Physics and Astronomy
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University of Glasgow
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Scotland
Email: 2278870T@student.gla.ac.uk
Tel: +44 141 330 2960
Ahmad Alharbi
PhD Student
Room 614
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 0855
Daniel Clarkson
PhD Student
Room 614
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email: d.clarkson.2@research.gla.ac.uk
Tel: +44 141 330 0855
Sarah Paterson
PhD Student
Room 614
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email: s.paterson.5@research.gla.ac.uk
Tel: +44 141 330 0855
David Millar
PhD Student
I am a Carnegie Trust PhD student, working with Professor Lyndsay Fletcher and studying oscillations in the Sun’s atmosphere, with particular focus on the chromosphere. I use mostly ground based imaging spectro-polarimetry in conjunction with space based data to look for evidence of oscillations and pulsations during solar flare activity. I am also interested in chromospheric waves and oscillations in quiet conditions, such as sunspot oscillations.
Room 604
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email: d.millar.2@research.gla.ac.uk
davidclmillar@hotmail.co.uk
Tel: +44 141 330 2960
@davidclmillar
Aaron W. Peat
I am working with Dr Nicolas Labrosse. My research is mainly concerned with solar prominences in the near ultraviolet wavelengths. I am currently working with MgII spectra from IRIS and using synthesised line profiles from NLTE code(s) to attempt to invert the atmosphere.
Room 604
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email: k.cooper.2@research.gla.ac.uk
Tel: +44 141 330 2960
John Armstrong
PhD Student
I am working with Prof. Lyndsay Fletcher on the implementation of machine learning algorithms in solar observations. My main focus is on flare spectropolarimetry and how machine learning techniques can aid the data analysis process for carrying out chromospheric magnetic field diagnostics in a flaring atmosphere.
I have mainly applied supervised and unsupervised deep learning models to different solar aspects:
1. Deep convolutional neural network (CNN) for solar feature detection
2. Deep learning for correcting for atmospheric seeing in solar flare observations.
3. Invertible neural network (INN) for the inversion of solar flare line profiles.
“Deep learning for the Sun”,J.A. Armstrong, C.M.J. Osborne & L. Fletcher, Astronomy & Geophysics, vol. 61, issue 3, June 2020, Pages 3.34–3.39 [doi]
Room 604
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email: j.armstrong.2@research.gla.ac.uk
Tel: +44 141 330 2960
Christopher Osborne
PhD Student
Room ???
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 ????
Fax: +44 141 330 8600
Kyle Martin
PhD Student
f.martin.1@research.gla.ac.uk
Room 616
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 3816
Thomas Murat
PhD Student
t.murat.1@research.gla.ac.uk
Room 604
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 2960
Fax: +44 141 330 8600
Nicolina Chrysaphi
PhD Student
I conduct research focused on the observation and analysis of radio emissions from the Sun, under the supervision of Professor Eduard P. Kontar. I am particularly interested in the physical mechanisms defining the morphological characteristics of Type II radio bursts which are excited by shock waves associated with Coronal Mass Ejections (CMEs). I also study the radio-wave scattering effects in the solar corona to better understand the observed radio emissions. I have utilised data from several instruments including SDO/AIA, SOHO/LASCO, GOES/XRS, and LOFAR.
Room 616
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
l.doyle.1@research.gla.ac.uk
Tel: +44 141 330 3816
Fax: +44 141 330 8600
Konstantina Loumou
PhD Student
k.loumou.1@research.gla.ac.uk
Room 604
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 2960
Fax: +44 141 330 8600
Andrew Rodger
PhD Student
a.rodger.1@research.gla.ac.uk
Room 604
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 2960
Fax: +44 141 330 8600
Dr Juntao Wang
PhD Student
Room 614
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email: j.wang.4@research.gla.ac.uk
Tel: +44 141 330 0855
Rhys Paterson
Msc Student
Room ???
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland
Email:
Tel: +44 141 330 ????
Fax: +44 141 330 8600
Dr Paul Wright
PhD Student
I am a final-year Ph.D. student studying the heating of non-flaring/micro-flaring active regions, supervised by Dr Iain Hannah.
My interests range from stellar to solar physics; my main interests lie in the heating of the solar atmosphere, including active regions and loops. I am currently gaining expertise in analysis of data from SDO/AIA, Hinode/XRT, Hinode/EIS, and NuSTAR.
DeepEM is a (supervised) deep learning approach to DEM inversion that is currently under development on Github, and Figure 1 compares the solution from DeepEM to that of Basis Pursuit (Cheung et al 2015).
Figure 1: SDO/AIA images in 171 and 211 A (logT = 5.9, 6.3 K), vs the DeepEM and Basis Pursuit solutions for the same temperature.
[1] Andrew J. Marsh, David M. Smith, Lindsay Glesener, Iain G. Hannah, Brian W. Grefenstette, Amir Caspi, Sam Krucker, Hugh S. Hudson, Kristin K. Madsen, Stephen M. White, Matej Kuhar, Paul J. Wright, Steven E. Boggs, Finn E. Christensen, William W. Craig, Charles J. Hailey, Fiona A. Harrison, Daniel Stern, and William W. Zhang 2017. First NuSTAR Limits on Quiet Sun Hard X-Ray Transient Events, ApJ, 849 131
[2] Juntao Wang, Paulo J. A. Simoes, Natasha L. S. Jeffrey, Lyndsay Fletcher, Paul J. Wright, Iain G. Hannah 2017. Observations of Reconnection Flows in a Flare on The Solar Disk, ApJL, 847, L1
[3] Paul J. Wright, Iain G. Hannah, Brian W. Grefenstette, Lindsay Glesener, Säm Krucker, Hugh S. Hudson, David M. Smith, Andrew J. Marsh, Stephen M. White, and Matej Kuhar 2017. Microflare Heating of a Solar Active Region Observed with NuSTAR, Hinode/XRT, and SDO/AIA, ApJ, 844, 132
[4] Matej Kuhar, Säm Krucker, Iain G. Hannah, Lindsay Glesener, Pascal Saint-Hilaire, Brian W. Grefenstette, Hugh S. Hudson, Stephen M. White, David M. Smith, Andrew J. Marsh, Paul J. Wright, Steven E. Boggs, Finn E. Christensen, William W. Craig, Charles J. Hailey, Fiona A. Harrison, Daniel Stern, and William W. Zhang 2017. Evidence of Significant Energy Input in the Late Phase of a Solar Flare from NuSTAR X-ray Observations, ApJ, 835, 6
Room 614
School of Physics and Astronomy
Kelvin Building
University of Glasgow
G12 8QQ
Scotland Paul.Wright@glasgow.ac.uk
Tel: +44 141 330 8855 x0855
Fax: +44 141 330 8600
Dr Stephen Brown
PhD Student
I am working with Prof. Lyndsay Fletcher on solar flares. We are currently looking at the behaviour of the chromosphere during flares, with a particular focus on the hydrogen Lyman lines.
After using EVE observations to measure Doppler shifts in these lines, we found signatures of both plasma upflows and downflows. We are now using radiative hydrodynamic and radiative transfer codes, RADYN & RH, to produce simulated H Lyman profiles and understand their formation in the solar atmosphere. We have also bridged the gap between observations and simulations by performing synthetic observations of model line profiles obtained through flare simulations.
In 2016 I visited the NASA Goddard Space Flight Centre for 4 months to further this work, and presented our observations at the SDO Living With A Star conference in Burlington, VT. In 2017, I presented our findings from modelling at the Solar Physics Division conference in Portland, OR.
Hydrogen Balmer Line Broadening in Solar and Stellar Flares – Astrophysical Journal – 2017 – Adam F Kowalski, Joel C Allred, Han Uitenbroek, Pier-Emmanuel Tremblay, Stephen Brown, Mats Carlsson, Rachel A Osten, John P Wisniewski, Suzanne L Hawley
g spectro-polarimetry in conjunction with space based data to look for evidence of oscillations and pulsations during solar flare activity. I am also interested in chromospheric waves and oscillations in quiet conditions, such as sunspot oscillations.
orcid.org/0000-0003-1589-9365
