2024

Cooper, K. , Hannah, I. G. , Glesener, L. and Grefenstette, B. W. (2024) Detecting non-thermal emission in a solar microflare using nested sampling. Monthly Notices of the Royal Astronomic Society, 529(1), pp. 702-714. (doi: 10.1093/mnras/stae348)

Paterson, S., Hannah, I. G. , Grefenstette, B. W., Hudson, H. S. , Krucker, S., Glesener, L., White, S. M. and Smith, D. M. (2024) Time evolution of X-ray bright points observed with NuSTAR. Monthly Notices of the Royal Astronomical Society, 528(4), pp. 6398-6410. (doi: 10.1093/mnras/stae417)

2023

Reid, H. A.S. et al. (2023) The Solar Particle Acceleration Radiation and Kinetics (SPARK) mission concept. Aerospace, 10(12), 1034. (doi: 10.3390/aerospace10121034)

Ryan, D. F. et al. (2023) The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A next-generation solar γ-ray spectroscopic imaging instrument concept. Aerospace, 10(12), 985. (doi: 10.3390/aerospace10120985)

Félix da Silva, D., Hui, L., Simões, P. J. A., Valio, A., Costa, J. E. R., Hudson, H. S. , Fletcher, L. , Hayes, L. A. and Hannah, I. G. (2023) Statistical analysis of the onset temperature of solar flares in 2010–2011. Monthly Notices of the Royal Astronomical Society, 525(3), pp. 4143-4148. (doi: 10.1093/mnras/stad2244)

Glesener, L. et al. (2023) The need for focused, hard X-ray investigations of the Sun. Bulletin of the American Astronomical Society, 55(3), (doi: 10.3847/25c2cfeb.78fa7c49)

Massa, P., Emslie, A. G., Hannah, I. G. and Kontar, E. P. (2023) Robust construction of differential emission measure profiles using a regularized maximum likelihood method. Astronomy and Astrophysics, 672, A120. (doi: 10.1051/0004-6361/202345883)

Paterson, S., Hannah, I. G. , Grefenstette, B. W., Hudson, H. S. , Krucker, S., Glesener, L., White, S. M. and Smith, D. M. (2023) The first survey of quiet Sun features observed in hard X-rays with NuSTAR. Solar Physics, 298(3), 47. (doi: 10.1007/s11207-023-02135-4)

Long, D. M., Chitta, L. P., Baker, D., Hannah, I. G. , Ngampoopun, N., Berghmans, D., Zhukov, A. N. and Teriaca, L. (2023) Multistage reconnection powering a solar coronal jet. Astrophysical Journal, 944(1), 19. (doi: 10.3847/1538-4357/acb0c9)

2022

Matthews, S. A. et al. (2022) The high-energy Sun - probing the origins of particle acceleration on our nearest star. Experimental Astronomy, 54(2-3), pp. 335-360. (doi: 10.1007/s10686-021-09798-6)

2021

Cooper, K. , Hannah, I. G. , Grefenstette, B. W., Glesener, L., Krucker, S., Hudson, H. S. , White, S. M., Smith, D. M. and Duncan, J. (2021) NuSTAR observations of a repeatedly microflaring active region. Monthly Notices of the Royal Astronomical Society, 507(3), pp. 3936-3951. (doi: 10.1093/mnras/stab2283)

Duncan, J., Glesener, L., Grefenstette, B., Vievering, J., Hannah, I. , Smith, D., Krucker, S., White, S. and Hudson, H. (2021) NuSTAR observation of energy release in 11 solar microflares. Astrophysical Journal, 908(1), 29. (doi: 10.3847/1538-4357/abca3d)

Hudson, H. S. , Simões, P. J.A. , Fletcher, L. , Hayes, L. A. and Hannah, I. G. (2021) Hot X-ray onsets of solar flares. Monthly Notices of the Royal Astronomical Society, 501(1), pp. 1273-1281. (doi: 10.1093/mnras/staa3664)

2020

Milligan, R. O. , Hudson, H. S. , Chamberlin, P. C., Hannah, I. G. and Hayes, L. A. (2020) Lyman‐alpha variability during solar flares over solar cycle 24 using GOES‐15/EUVS‐E. Space Weather, 18(7), e2019SW002331. (doi: 10.1029/2019SW002331)

Cooper, K. , Hannah, I. , Grenfenstette, B. W., Glesener, L., Krucker, S., Hudson, H. , White, S. and Smith, D. M. (2020) NuSTAR observation of a minuscule microflare in a solar active region. Astrophysical Journal Letters, 893(2), L40. (doi: 10.3847/2041-8213/ab873e)

Glesener, L., Krucker, S., Duncan, J., Hannah, I. G. , Grefenstette, B. W., Chen, B., Smith, D. M., White, S. M. and Hudson, H. (2020) Accelerated electrons observed down to <7 keV in a NuSTAR solar microflare. Astrophysical Journal, 891(2), L34. (doi: 10.3847/2041-8213/ab7341)

2019

Hannah, I. G. , Kleint, L., Krucker, S., Grefenstette, B. W., Glesener, L., Hudson, H. S. , White, S. M. and Smith, D. M. (2019) Joint X-ray, EUV, and UV observations of a small microflare. Astrophysical Journal, 881(2), 109. (doi: 10.3847/1538-4357/ab2dfa)

2018

Loumou, K., Hannah, I.G. and Hudson, H.S. (2018) The association of the Hale sector boundary with RHESSI solar flares and active longitudes. Astronomy and Astrophysics, 618, A9. (doi: 10.1051/0004-6361/201731050)

Marsh, A. J., Smith, D. M., Glesener, L., Klimchuk, J. A., Bradshaw, S. J., Vievering, J., Hannah, I. G. , Christe, S., Ishikawa, S.-n. and Krucker, S. (2018) Hard X-Ray constraints on small-scale coronal heating events. Astrophysical Journal, 864(1), 5. (doi: 10.3847/1538-4357/aad380)

Kuhar, M., Krucker, S., Glesener, L., Hannah, I. G. , Grefenstette, B. W., Smith, D. M., Hudson, H. S. and White, S. M. (2018) NuSTAR detection of X-ray heating events in the quiet Sun. Astrophysical Journal Letters, 856(2), L32. (doi: 10.3847/2041-8213/aab889)

Su, Y., Veronig, A. M., Hannah, I. G. , Cheung, M. C.M., Dennis, B. R., Holman, G. D., Gan, W. and Li, Y. (2018) Determination of differential emission measure from solar extreme ultraviolet images. Astrophysical Journal Letters, 856(1), L17. (doi: 10.3847/2041-8213/aab436)

2017

Glesener, L. et al. (2017) High-Energy Aspects of Small-Scale Energy Release at the Sun. AGU Fall Meeting, New Orleans, LA, USA, 11-15 Dec 2017.

Marsh, A. J. et al. (2017) First NuSTAR limits on quiet sun hard X-ray transient events. Astrophysical Journal, 849(2), 131. (doi: 10.3847/1538-4357/aa9122)

Wang, J., Simoes, P.J.A. , Jeffrey, N.L.S. , Fletcher, L. , Wright, P.J. and Hannah, I.G. (2017) Observations of reconnection flows in a flare on the solar disk. Astrophysical Journal Letters, 847(1), L1. (doi: 10.3847/2041-8213/aa8904)

Wright, P. J. , Hannah, I. , Viall, N., MacKinnon, A. , Ireland, J. and Bradshaw, S. (2017) Thermal Time Evolution of Non-Flaring Active Regions Determined by SDO/AIA. 48th SPD Meeting, Portland, OR, USA, 21-25 Aug 2017.

Glesener, L., Krucker, S., Hannah, I. G. , Hudson, H. , Grefenstette, B. W., White, S. M., Smith, D. M. and Marsh, A. J. (2017) NuSTAR hard X-ray observation of a sub-A class solar flare. Astrophysical Journal, 845(2), 122. (doi: 10.3847/1538-4357/aa80e9)

Wright, P. J. , Hannah, I. G. , Grefenstette, B. W., Glesener, L., Krucker, S., Hudson, H. S. , Smith, D. M., Marsh, A. J., White, S. M. and Kuhar, M. (2017) Microflare heating of a solar active region observed with NuSTAR, Hinode/XRT, and SDO/AIA. Astrophysical Journal, 844(2), 132. (doi: 10.3847/1538-4357/aa7a59)

Kuhar, M. et al. (2017) Evidence of significant energy input in the late phase of a solar flare from NuSTAR x-ray observations. Astrophysical Journal, 835(1), 6. (doi: 10.3847/1538-4357/835/1/6)

Christe, S. et al. (2017) Exploring impulsive solar magnetic energy release and particle acceleration with focused hard X-ray imaging spectroscopy. Technical Report. Next Generation Solar Physics Mission. (doi: 10.48550/arXiv.1701.00792).

2016

Wang, J., Simões, P.J.A. , Fletcher, L. , Thalmann, J.K., Hudson, H.S. and Hannah, I.G. (2016) Arcade implosion caused by a filament eruption in a flare wang. Astrophysical Journal, 833(2), 221. (doi: 10.3847/1538-4357/833/2/221)

Grefenstette, B. W. et al. (2016) The first focused hard X-ray images of the Sun with NuSTAR. Astrophysical Journal, 826(1), 20. (doi: 10.3847/0004-637X/826/1/20)

Wang, W., Wang, L., Krucker, S. and Hannah, I. (2016) Simulation of quiet-sun hard x-rays related to solar wind superhalo electrons. Solar Physics, 291(5), pp. 1357-1367. (doi: 10.1007/s11207-016-0916-z)

Hannah, I. G. et al. (2016) The first X-ray imaging spectroscopy of quiescent solar active regions with NuSTAR. Astrophysical Journal Letters, 280, 1. (doi: 10.3847/2041-8205/820/1/L14)

2015

Vanninathan, K., Veronig, A. M., Dissauer, K., Madjarska, M. S., Hannah, I. G. and Kontar, E. P. (2015) Coronal response to an EUV wave from DEM analysis. Astrophysical Journal, 812(2), 173. (doi: 10.1088/0004-637X/812/2/173)

2014

Hudson, H. S., Svalgaard, L. and Hannah, I. G. (2014) Solar sector structure. Space Science Reviews, 186(1-4), pp. 17-34. (doi: 10.1007/s11214-014-0121-z)

Hannah, I. , Betts, J., Ingram, A. and Nicholl, M. (2014) RAS Ordinary Meeting: The December 2013 Ordinary Meeting of the RAS included timepieces, flares, black hole binaries and strangely bright supernovae. Astronomy and Geophysics, 55(2), 2.9-2.9. (doi: 10.1093/astrogeo/atu074)

2013

Sun, X., Hoeksema, J.T., Liu, Y., Aulanier, G., Su, Y., Hannah, I.G. and Hock, R. (2013) Hot spine loops and the nature of a late-phase solar flare. Astrophysical Journal, 778(2), Art. 139. (doi: 10.1088/0004-637X/778/2/139)

Hannah, I.E. and Kontar, E.P. (2013) Multi-thermal dynamics and energetics of a coronal mass ejection in the low solar atmosphere. Astronomy and Astrophysics, 553, A10. (doi: 10.1051/0004-6361/201219727)

Graham, D.R., Hannah, I.G. , Fletcher, L. and Milligan, R.O. (2013) The emission measure distribution of impulsive phase flare footpoints. Astrophysical Journal, 767(1), Art. 83. (doi: 10.1088/0004-637X/767/1/83)

Foullon, C., Verwichte, E., Nykyri, K., Aschwanden, M.J. and Hannah, I.G. (2013) Kelvin-helmholtz instability of the cme reconnection outflow layer in the low corona. Astrophysical Journal, 767(2), Art. 170. (doi: 10.1088/0004-637X/767/2/170)

Hannah, I.G. , Kontar, E.P. and Reid, H.A.S. (2013) Effect of turbulent density-fluctuations on wave-particle interactions and solar flare X-ray spectra. Astronomy and Astrophysics, 550, A51. (doi: 10.1051/0004-6361/201220462)

Fletcher, L. , Hannah, I.G. , Hudson, H.S. and Innes, D.E. (2013) Flare ribbon energetics in the early phase of an SDO flare. Astrophysical Journal, 771(2), pp. 1-3. (doi: 10.1088/0004-637X/771/2/104)

2012

Matthews, S.A. et al. (2012) Solar particle acceleration radiation and kinetics (SPARK). Experimental Astronomy, 33(2-3), pp. 237-269. (doi: 10.1007/s10686-011-9260-3)

Hannah, I.G. and Kontar, E.P. (2012) Differential emission measures from the regularized inversion of Hinode and SDO data. Astronomy and Astrophysics, 539, (doi: 10.1051/0004-6361/201117576)

Hannah, I. , Harland, A., Price, D. and Lucas, T. (2012) Centre of pressure output in a kinematically driven finite element footstrike model. Procedia Engineering, 34, pp. 278-283. (doi: 10.1016/j.proeng.2012.04.048)

2011

Hannah, I.G. , Hudson, H.S., Battaglia, M., Christe, S., Ka\v sparová, J., Krucker, S., Kundu, M.R. and Veronig, A. (2011) Microflares and the statistics of x-ray flares. Space Science Reviews, 159(1-4), pp. 263-300. (doi: 10.1007/s11214-010-9705-4)

Graham, D.R., Fletcher, L. and Hannah, I.G. (2011) Hinode/EIS plasma diagnostics in the flaring solar chromosphere. Astronomy and Astrophysics, 532, A27. (doi: 10.1051/0004-6361/201015416)

Baylor, R.N., Cassak, P.A., Christe, S., Hannah, I.G. , Krucker, S., Mullan, D.J., Shay, M.A., Hudson, H.S. and Lin, R.P. (2011) Estimates of densities and filling factors from a cooling time analysis of solar microflares observed with RHESSI. Astrophysical Journal, 736(1), p. 75. (doi: 10.1088/0004-637X/736/1/75)

Svalgaard, L., Hannah, I.G. and Hudson, H.S. (2011) Flaring solar Hale sector boundaries. Astrophysical Journal, 733(1), p. 49. (doi: 10.1088/0004-637X/733/1/49)

Hannah, I.G. and Kontar, E.P. (2011) The spectral difference between solar flare HXR coronal and footpoint sources due to wave-particle interactions. Astronomy and Astrophysics, 529, (doi: 10.1051/0004-6361/201015710)

Kontar, E.P. , Hannah, I.G. and Bian, N.H. (2011) Acceleration, magnetic fluctuations, and cross-field transport of energetic electrons in a solar flare loop. Astrophysical Journal Letters, 730, (doi: 10.1088/2041-8205/730/2/L22)

Battaglia, M., Kontar, E.P. and Hannah, I.G. (2011) The influence of albedo on the size of hard X-ray flare sources. Astronomy and Astrophysics, 526, (doi: 10.1051/0004-6361/201014798)

2010

Hannah, I. , Hudson, H. , Hurford, G. and Lin, R.P. (2010) Constraining the hard X-ray properties of the quiet sun with new RHESSI observations. Astrophysical Journal, 724(1), pp. 487-492. (doi: 10.1088/0004-637X/724/1/487)

Foullon, C., Fletcher, L. , Hannah, I.G. , Verwichte, E., Cecconi, B., Nakariakov, V.M., Phillips, K.J.H. and Tan, B.L. (2010) From large-scale loops to the sites of dense flaring loops: preferential conditions for long-period pulsations in solar flares. Astrophysical Journal, 719(1), pp. 151-165. (doi: 10.1088/0004-637X/719/1/151)

Kontar, E.P. , Hannah, I.G. , Jeffrey, N.L.S. and Battaglia, M. (2010) The sub-arcsecond hard x-ray structure of loop footpoints in a solar flare. Astrophysical Journal, 717(1), pp. 250-256. (doi: 10.1088/0004-637X/717/1/250)

2009

Hannah, I.G., Kontar, E.P. and Sirenko, O.K. (2009) The effect of wave-particle interactions on low-energy cutoffs in solar flare electron spectra. Astrophysical Journal Letters, 707(1), pp. 45-50. (doi: 10.1088/0004-637X/707/1/L45)

2008

Chifor, C., Isobe, H., Mason, H.E., Hannah, I.G. , Young, P.R., Del Zanna, G., Krucker, S., Ichimoto, K., Katsukawa, Y. and Yokoyama, T. (2008) Magnetic flux cancellation associated with a recurring solar jet observed with Hinode, RHESSI, and STEREO/EUVI. Astronomy and Astrophysics, 491(1), pp. 279-288. (doi: 10.1051/0004-6361:200810265)

Christe, S., Hannah, I.G. , Krucker, S., McTiernan, J. and Lin, R.P. (2008) RHESSI microflare statistics. I. Flare-finding and frequency distributions. Astrophysical Journal, 677(2), pp. 1385-1394. (doi: 10.1086/529011)

Hannah, I.G. , Christe, S., Krucker, S., Hurford, G.J., Hudson, H.S. and Lin, R.P. (2008) RHESSI microflare statistics. II. X-ray imaging, spectroscopy, and energy distributions. Astrophysical Journal, 677(1), pp. 704-718. (doi: 10.1086/529012)

Hannah, I.G. , Krucker, S., Hudson, H.S., Christe, S. and Lin, R.P. (2008) An intriguing solar microflare observed with RHESSI, Hinode, and TRACE. Astronomy and Astrophysics, 481(1), L45-L48. (doi: 10.1051/0004-6361:20079019)

Nitta, N.V., Mason, G.M., Wiedenbeck, M.E., Cohen, C.M.S., Krucker, S., Hannah, I.G. , Shimojo, M. and Shibata, K. (2008) Coronal jet observed by Hinode as the source of a ³He-rich solar energetic particle event. Astrophysical Journal Letters, 675(2), L125-L128. (doi: 10.1086/533438)

Kontar, E.P. , Hannah, I.G. and MacKinnon, A.L. (2008) Chromospheric magnetic field and density structure measurements using hard X-rays in a flaring coronal loop. Astronomy and Astrophysics, 489(3), L57-L60. (doi: 10.1051/0004-6361:200810719)

2007

Krucker, S., Hannah, I.G. and Lin, R.P. (2007) RHESSI and hinode x-ray observations of a partially occulted solar flare. Astrophysical Journal Letters, 671(2), L193-L196. (doi: 10.1086/525019)

Hannah, I.G. , Hurford, G.J., Hudson, H.S. , Lin, R.P. and van Bibber, K. (2007) First limits on the 3-200 keV x-ray spectrum of the quiet sun using RHESSI. Astrophysical Journal Letters, 659(1), L77-L80. (doi: 10.1086/516750)

Fletcher, L. , Hannah, I.G. , Hudson, H.S. and Metcalf, T.R. (2007) A TRACE white light and RHESSI hard X-ray study of flare energetics. Astrophysical Journal, 656(2), pp. 1187-1196. (doi: 10.1086/510446)

Hannah, I.G. , Hurford, G.J., Hudson, H.S. and Lin, R.P. (2007) A new method of observing weak extended x-ray sources with the Reuven Ramaty High-Energy Solar Spectroscopic Imager. Review of Scientific Instruments, 78(2), 024501. (doi: 10.1063/1.2437120)

2006

Hannah, I.G. and Fletcher, L. (2006) Comparison of the energy spectra and number fluxes from a simple flare model to observations. Solar Physics, 236, pp. 59-74. (doi: 10.1007/s11207-006-0139-9)

Articles

Cooper, K. , Hannah, I. G. , Glesener, L. and Grefenstette, B. W. (2024) Detecting non-thermal emission in a solar microflare using nested sampling. Monthly Notices of the Royal Astronomic Society, 529(1), pp. 702-714. (doi: 10.1093/mnras/stae348)

Paterson, S., Hannah, I. G. , Grefenstette, B. W., Hudson, H. S. , Krucker, S., Glesener, L., White, S. M. and Smith, D. M. (2024) Time evolution of X-ray bright points observed with NuSTAR. Monthly Notices of the Royal Astronomical Society, 528(4), pp. 6398-6410. (doi: 10.1093/mnras/stae417)

Reid, H. A.S. et al. (2023) The Solar Particle Acceleration Radiation and Kinetics (SPARK) mission concept. Aerospace, 10(12), 1034. (doi: 10.3390/aerospace10121034)

Ryan, D. F. et al. (2023) The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A next-generation solar γ-ray spectroscopic imaging instrument concept. Aerospace, 10(12), 985. (doi: 10.3390/aerospace10120985)

Félix da Silva, D., Hui, L., Simões, P. J. A., Valio, A., Costa, J. E. R., Hudson, H. S. , Fletcher, L. , Hayes, L. A. and Hannah, I. G. (2023) Statistical analysis of the onset temperature of solar flares in 2010–2011. Monthly Notices of the Royal Astronomical Society, 525(3), pp. 4143-4148. (doi: 10.1093/mnras/stad2244)

Glesener, L. et al. (2023) The need for focused, hard X-ray investigations of the Sun. Bulletin of the American Astronomical Society, 55(3), (doi: 10.3847/25c2cfeb.78fa7c49)

Massa, P., Emslie, A. G., Hannah, I. G. and Kontar, E. P. (2023) Robust construction of differential emission measure profiles using a regularized maximum likelihood method. Astronomy and Astrophysics, 672, A120. (doi: 10.1051/0004-6361/202345883)

Paterson, S., Hannah, I. G. , Grefenstette, B. W., Hudson, H. S. , Krucker, S., Glesener, L., White, S. M. and Smith, D. M. (2023) The first survey of quiet Sun features observed in hard X-rays with NuSTAR. Solar Physics, 298(3), 47. (doi: 10.1007/s11207-023-02135-4)

Long, D. M., Chitta, L. P., Baker, D., Hannah, I. G. , Ngampoopun, N., Berghmans, D., Zhukov, A. N. and Teriaca, L. (2023) Multistage reconnection powering a solar coronal jet. Astrophysical Journal, 944(1), 19. (doi: 10.3847/1538-4357/acb0c9)

Matthews, S. A. et al. (2022) The high-energy Sun - probing the origins of particle acceleration on our nearest star. Experimental Astronomy, 54(2-3), pp. 335-360. (doi: 10.1007/s10686-021-09798-6)

Cooper, K. , Hannah, I. G. , Grefenstette, B. W., Glesener, L., Krucker, S., Hudson, H. S. , White, S. M., Smith, D. M. and Duncan, J. (2021) NuSTAR observations of a repeatedly microflaring active region. Monthly Notices of the Royal Astronomical Society, 507(3), pp. 3936-3951. (doi: 10.1093/mnras/stab2283)

Duncan, J., Glesener, L., Grefenstette, B., Vievering, J., Hannah, I. , Smith, D., Krucker, S., White, S. and Hudson, H. (2021) NuSTAR observation of energy release in 11 solar microflares. Astrophysical Journal, 908(1), 29. (doi: 10.3847/1538-4357/abca3d)

Hudson, H. S. , Simões, P. J.A. , Fletcher, L. , Hayes, L. A. and Hannah, I. G. (2021) Hot X-ray onsets of solar flares. Monthly Notices of the Royal Astronomical Society, 501(1), pp. 1273-1281. (doi: 10.1093/mnras/staa3664)

Milligan, R. O. , Hudson, H. S. , Chamberlin, P. C., Hannah, I. G. and Hayes, L. A. (2020) Lyman‐alpha variability during solar flares over solar cycle 24 using GOES‐15/EUVS‐E. Space Weather, 18(7), e2019SW002331. (doi: 10.1029/2019SW002331)

Cooper, K. , Hannah, I. , Grenfenstette, B. W., Glesener, L., Krucker, S., Hudson, H. , White, S. and Smith, D. M. (2020) NuSTAR observation of a minuscule microflare in a solar active region. Astrophysical Journal Letters, 893(2), L40. (doi: 10.3847/2041-8213/ab873e)

Glesener, L., Krucker, S., Duncan, J., Hannah, I. G. , Grefenstette, B. W., Chen, B., Smith, D. M., White, S. M. and Hudson, H. (2020) Accelerated electrons observed down to <7 keV in a NuSTAR solar microflare. Astrophysical Journal, 891(2), L34. (doi: 10.3847/2041-8213/ab7341)

Hannah, I. G. , Kleint, L., Krucker, S., Grefenstette, B. W., Glesener, L., Hudson, H. S. , White, S. M. and Smith, D. M. (2019) Joint X-ray, EUV, and UV observations of a small microflare. Astrophysical Journal, 881(2), 109. (doi: 10.3847/1538-4357/ab2dfa)

Loumou, K., Hannah, I.G. and Hudson, H.S. (2018) The association of the Hale sector boundary with RHESSI solar flares and active longitudes. Astronomy and Astrophysics, 618, A9. (doi: 10.1051/0004-6361/201731050)

Marsh, A. J., Smith, D. M., Glesener, L., Klimchuk, J. A., Bradshaw, S. J., Vievering, J., Hannah, I. G. , Christe, S., Ishikawa, S.-n. and Krucker, S. (2018) Hard X-Ray constraints on small-scale coronal heating events. Astrophysical Journal, 864(1), 5. (doi: 10.3847/1538-4357/aad380)

Kuhar, M., Krucker, S., Glesener, L., Hannah, I. G. , Grefenstette, B. W., Smith, D. M., Hudson, H. S. and White, S. M. (2018) NuSTAR detection of X-ray heating events in the quiet Sun. Astrophysical Journal Letters, 856(2), L32. (doi: 10.3847/2041-8213/aab889)

Su, Y., Veronig, A. M., Hannah, I. G. , Cheung, M. C.M., Dennis, B. R., Holman, G. D., Gan, W. and Li, Y. (2018) Determination of differential emission measure from solar extreme ultraviolet images. Astrophysical Journal Letters, 856(1), L17. (doi: 10.3847/2041-8213/aab436)

Marsh, A. J. et al. (2017) First NuSTAR limits on quiet sun hard X-ray transient events. Astrophysical Journal, 849(2), 131. (doi: 10.3847/1538-4357/aa9122)

Wang, J., Simoes, P.J.A. , Jeffrey, N.L.S. , Fletcher, L. , Wright, P.J. and Hannah, I.G. (2017) Observations of reconnection flows in a flare on the solar disk. Astrophysical Journal Letters, 847(1), L1. (doi: 10.3847/2041-8213/aa8904)

Glesener, L., Krucker, S., Hannah, I. G. , Hudson, H. , Grefenstette, B. W., White, S. M., Smith, D. M. and Marsh, A. J. (2017) NuSTAR hard X-ray observation of a sub-A class solar flare. Astrophysical Journal, 845(2), 122. (doi: 10.3847/1538-4357/aa80e9)

Wright, P. J. , Hannah, I. G. , Grefenstette, B. W., Glesener, L., Krucker, S., Hudson, H. S. , Smith, D. M., Marsh, A. J., White, S. M. and Kuhar, M. (2017) Microflare heating of a solar active region observed with NuSTAR, Hinode/XRT, and SDO/AIA. Astrophysical Journal, 844(2), 132. (doi: 10.3847/1538-4357/aa7a59)

Kuhar, M. et al. (2017) Evidence of significant energy input in the late phase of a solar flare from NuSTAR x-ray observations. Astrophysical Journal, 835(1), 6. (doi: 10.3847/1538-4357/835/1/6)

Wang, J., Simões, P.J.A. , Fletcher, L. , Thalmann, J.K., Hudson, H.S. and Hannah, I.G. (2016) Arcade implosion caused by a filament eruption in a flare wang. Astrophysical Journal, 833(2), 221. (doi: 10.3847/1538-4357/833/2/221)

Grefenstette, B. W. et al. (2016) The first focused hard X-ray images of the Sun with NuSTAR. Astrophysical Journal, 826(1), 20. (doi: 10.3847/0004-637X/826/1/20)

Wang, W., Wang, L., Krucker, S. and Hannah, I. (2016) Simulation of quiet-sun hard x-rays related to solar wind superhalo electrons. Solar Physics, 291(5), pp. 1357-1367. (doi: 10.1007/s11207-016-0916-z)

Hannah, I. G. et al. (2016) The first X-ray imaging spectroscopy of quiescent solar active regions with NuSTAR. Astrophysical Journal Letters, 280, 1. (doi: 10.3847/2041-8205/820/1/L14)

Vanninathan, K., Veronig, A. M., Dissauer, K., Madjarska, M. S., Hannah, I. G. and Kontar, E. P. (2015) Coronal response to an EUV wave from DEM analysis. Astrophysical Journal, 812(2), 173. (doi: 10.1088/0004-637X/812/2/173)

Hudson, H. S., Svalgaard, L. and Hannah, I. G. (2014) Solar sector structure. Space Science Reviews, 186(1-4), pp. 17-34. (doi: 10.1007/s11214-014-0121-z)

Hannah, I. , Betts, J., Ingram, A. and Nicholl, M. (2014) RAS Ordinary Meeting: The December 2013 Ordinary Meeting of the RAS included timepieces, flares, black hole binaries and strangely bright supernovae. Astronomy and Geophysics, 55(2), 2.9-2.9. (doi: 10.1093/astrogeo/atu074)

Sun, X., Hoeksema, J.T., Liu, Y., Aulanier, G., Su, Y., Hannah, I.G. and Hock, R. (2013) Hot spine loops and the nature of a late-phase solar flare. Astrophysical Journal, 778(2), Art. 139. (doi: 10.1088/0004-637X/778/2/139)

Hannah, I.E. and Kontar, E.P. (2013) Multi-thermal dynamics and energetics of a coronal mass ejection in the low solar atmosphere. Astronomy and Astrophysics, 553, A10. (doi: 10.1051/0004-6361/201219727)

Graham, D.R., Hannah, I.G. , Fletcher, L. and Milligan, R.O. (2013) The emission measure distribution of impulsive phase flare footpoints. Astrophysical Journal, 767(1), Art. 83. (doi: 10.1088/0004-637X/767/1/83)

Foullon, C., Verwichte, E., Nykyri, K., Aschwanden, M.J. and Hannah, I.G. (2013) Kelvin-helmholtz instability of the cme reconnection outflow layer in the low corona. Astrophysical Journal, 767(2), Art. 170. (doi: 10.1088/0004-637X/767/2/170)

Hannah, I.G. , Kontar, E.P. and Reid, H.A.S. (2013) Effect of turbulent density-fluctuations on wave-particle interactions and solar flare X-ray spectra. Astronomy and Astrophysics, 550, A51. (doi: 10.1051/0004-6361/201220462)

Fletcher, L. , Hannah, I.G. , Hudson, H.S. and Innes, D.E. (2013) Flare ribbon energetics in the early phase of an SDO flare. Astrophysical Journal, 771(2), pp. 1-3. (doi: 10.1088/0004-637X/771/2/104)

Matthews, S.A. et al. (2012) Solar particle acceleration radiation and kinetics (SPARK). Experimental Astronomy, 33(2-3), pp. 237-269. (doi: 10.1007/s10686-011-9260-3)

Hannah, I.G. and Kontar, E.P. (2012) Differential emission measures from the regularized inversion of Hinode and SDO data. Astronomy and Astrophysics, 539, (doi: 10.1051/0004-6361/201117576)

Hannah, I. , Harland, A., Price, D. and Lucas, T. (2012) Centre of pressure output in a kinematically driven finite element footstrike model. Procedia Engineering, 34, pp. 278-283. (doi: 10.1016/j.proeng.2012.04.048)

Hannah, I.G. , Hudson, H.S., Battaglia, M., Christe, S., Ka\v sparová, J., Krucker, S., Kundu, M.R. and Veronig, A. (2011) Microflares and the statistics of x-ray flares. Space Science Reviews, 159(1-4), pp. 263-300. (doi: 10.1007/s11214-010-9705-4)

Graham, D.R., Fletcher, L. and Hannah, I.G. (2011) Hinode/EIS plasma diagnostics in the flaring solar chromosphere. Astronomy and Astrophysics, 532, A27. (doi: 10.1051/0004-6361/201015416)

Baylor, R.N., Cassak, P.A., Christe, S., Hannah, I.G. , Krucker, S., Mullan, D.J., Shay, M.A., Hudson, H.S. and Lin, R.P. (2011) Estimates of densities and filling factors from a cooling time analysis of solar microflares observed with RHESSI. Astrophysical Journal, 736(1), p. 75. (doi: 10.1088/0004-637X/736/1/75)

Svalgaard, L., Hannah, I.G. and Hudson, H.S. (2011) Flaring solar Hale sector boundaries. Astrophysical Journal, 733(1), p. 49. (doi: 10.1088/0004-637X/733/1/49)

Hannah, I.G. and Kontar, E.P. (2011) The spectral difference between solar flare HXR coronal and footpoint sources due to wave-particle interactions. Astronomy and Astrophysics, 529, (doi: 10.1051/0004-6361/201015710)

Kontar, E.P. , Hannah, I.G. and Bian, N.H. (2011) Acceleration, magnetic fluctuations, and cross-field transport of energetic electrons in a solar flare loop. Astrophysical Journal Letters, 730, (doi: 10.1088/2041-8205/730/2/L22)

Battaglia, M., Kontar, E.P. and Hannah, I.G. (2011) The influence of albedo on the size of hard X-ray flare sources. Astronomy and Astrophysics, 526, (doi: 10.1051/0004-6361/201014798)

Hannah, I. , Hudson, H. , Hurford, G. and Lin, R.P. (2010) Constraining the hard X-ray properties of the quiet sun with new RHESSI observations. Astrophysical Journal, 724(1), pp. 487-492. (doi: 10.1088/0004-637X/724/1/487)

Foullon, C., Fletcher, L. , Hannah, I.G. , Verwichte, E., Cecconi, B., Nakariakov, V.M., Phillips, K.J.H. and Tan, B.L. (2010) From large-scale loops to the sites of dense flaring loops: preferential conditions for long-period pulsations in solar flares. Astrophysical Journal, 719(1), pp. 151-165. (doi: 10.1088/0004-637X/719/1/151)

Kontar, E.P. , Hannah, I.G. , Jeffrey, N.L.S. and Battaglia, M. (2010) The sub-arcsecond hard x-ray structure of loop footpoints in a solar flare. Astrophysical Journal, 717(1), pp. 250-256. (doi: 10.1088/0004-637X/717/1/250)

Hannah, I.G., Kontar, E.P. and Sirenko, O.K. (2009) The effect of wave-particle interactions on low-energy cutoffs in solar flare electron spectra. Astrophysical Journal Letters, 707(1), pp. 45-50. (doi: 10.1088/0004-637X/707/1/L45)

Chifor, C., Isobe, H., Mason, H.E., Hannah, I.G. , Young, P.R., Del Zanna, G., Krucker, S., Ichimoto, K., Katsukawa, Y. and Yokoyama, T. (2008) Magnetic flux cancellation associated with a recurring solar jet observed with Hinode, RHESSI, and STEREO/EUVI. Astronomy and Astrophysics, 491(1), pp. 279-288. (doi: 10.1051/0004-6361:200810265)

Christe, S., Hannah, I.G. , Krucker, S., McTiernan, J. and Lin, R.P. (2008) RHESSI microflare statistics. I. Flare-finding and frequency distributions. Astrophysical Journal, 677(2), pp. 1385-1394. (doi: 10.1086/529011)

Hannah, I.G. , Christe, S., Krucker, S., Hurford, G.J., Hudson, H.S. and Lin, R.P. (2008) RHESSI microflare statistics. II. X-ray imaging, spectroscopy, and energy distributions. Astrophysical Journal, 677(1), pp. 704-718. (doi: 10.1086/529012)

Hannah, I.G. , Krucker, S., Hudson, H.S., Christe, S. and Lin, R.P. (2008) An intriguing solar microflare observed with RHESSI, Hinode, and TRACE. Astronomy and Astrophysics, 481(1), L45-L48. (doi: 10.1051/0004-6361:20079019)

Nitta, N.V., Mason, G.M., Wiedenbeck, M.E., Cohen, C.M.S., Krucker, S., Hannah, I.G. , Shimojo, M. and Shibata, K. (2008) Coronal jet observed by Hinode as the source of a ³He-rich solar energetic particle event. Astrophysical Journal Letters, 675(2), L125-L128. (doi: 10.1086/533438)

Kontar, E.P. , Hannah, I.G. and MacKinnon, A.L. (2008) Chromospheric magnetic field and density structure measurements using hard X-rays in a flaring coronal loop. Astronomy and Astrophysics, 489(3), L57-L60. (doi: 10.1051/0004-6361:200810719)

Krucker, S., Hannah, I.G. and Lin, R.P. (2007) RHESSI and hinode x-ray observations of a partially occulted solar flare. Astrophysical Journal Letters, 671(2), L193-L196. (doi: 10.1086/525019)

Hannah, I.G. , Hurford, G.J., Hudson, H.S. , Lin, R.P. and van Bibber, K. (2007) First limits on the 3-200 keV x-ray spectrum of the quiet sun using RHESSI. Astrophysical Journal Letters, 659(1), L77-L80. (doi: 10.1086/516750)

Fletcher, L. , Hannah, I.G. , Hudson, H.S. and Metcalf, T.R. (2007) A TRACE white light and RHESSI hard X-ray study of flare energetics. Astrophysical Journal, 656(2), pp. 1187-1196. (doi: 10.1086/510446)

Hannah, I.G. , Hurford, G.J., Hudson, H.S. and Lin, R.P. (2007) A new method of observing weak extended x-ray sources with the Reuven Ramaty High-Energy Solar Spectroscopic Imager. Review of Scientific Instruments, 78(2), 024501. (doi: 10.1063/1.2437120)

Hannah, I.G. and Fletcher, L. (2006) Comparison of the energy spectra and number fluxes from a simple flare model to observations. Solar Physics, 236, pp. 59-74. (doi: 10.1007/s11207-006-0139-9)

Research Reports or Papers

Christe, S. et al. (2017) Exploring impulsive solar magnetic energy release and particle acceleration with focused hard X-ray imaging spectroscopy. Technical Report. Next Generation Solar Physics Mission. (doi: 10.48550/arXiv.1701.00792).

Conference or Workshop Item

Glesener, L. et al. (2017) High-Energy Aspects of Small-Scale Energy Release at the Sun. AGU Fall Meeting, New Orleans, LA, USA, 11-15 Dec 2017.

Wright, P. J. , Hannah, I. , Viall, N., MacKinnon, A. , Ireland, J. and Bradshaw, S. (2017) Thermal Time Evolution of Non-Flaring Active Regions Determined by SDO/AIA. 48th SPD Meeting, Portland, OR, USA, 21-25 Aug 2017.