2013

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. ISSN 0004-637X (doi:10.1088/0004-637X/767/1/83)

Fletcher, L., and Simoes, P.J.A. (2013) The impulsive phase in solar flares: recent multi-wavelength results and their implications for microwave modeling and observations. National Solar Radio Observatory Reports . (In Press)

2012

Battaglia, M., Kontar, E.P., Fletcher, L., and MacKinnon, A.L. (2012) Numerical simulations of chromospheric hard X-ray source sizesin solar flares. Astrophysical Journal, 752 (1). ISSN 0004-637X (doi:10.1088/0004-637X/752/1/4)

Matthews, S.A. et al. (2012) Solar particle acceleration radiation and kinetics (SPARK): a mission to understand the nature of particle acceleration. Experimental Astronomy, 33 (2-3). pp. 237-269. ISSN 0922-6435 (doi:10.1007/s10686-011-9260-3)

Hudson, H.S., Fletcher, L., MacKinnon, A.L., and Woods, T.N. (2012) Charge-exchange limits on low-energy α-particle fluxes in solar flares. Astrophysical Journal, 752 (2). p. 84. ISSN 0004-637X (doi:10.1088/0004-637X/752/2/84)

2011

Fletcher, L. et al. (2011) An observational overview of solar flares. Space Science Reviews, 159 (1-4). pp. 19-106. ISSN 0038-6308 (doi:10.1007/s11214-010-9701-8)

Watson, F., Fletcher, L., and Marshall , S. (2011) Evolution of sunspot properties during solar cycle 23. Astronomy and Astrophysics, 533 . A14. ISSN 0004-6361 (doi:10.1051/0004-6361/201116655)

Zharkova, V.V. et al. (2011) Recent advances in understanding particle acceleration processes in solar flares. Space Science Reviews, 159 (1-4). pp. 357-420. ISSN 0038-6308 (doi:10.1007/s11214-011-9803-y)

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

Guo, J., Liu, S., Fletcher, L., and Kontar, E.P. (2011) Relationship between hard and soft X-ray emission components of a solar flare. Astrophysical Journal, 728 (1). ISSN 0004-637X (doi:10.1088/0004-637X/728/1/4)

Hudson, H.S., Woods, T.N., Chamberlin, P.C., Fletcher, L., Zanna, G.D, Labrosse, N., and Graham, D. (2011) The EVE Doppler sensitivity and flare observations. Solar Physics, 273 (1). pp. 69-80. ISSN 0038-0938 (doi:10.1007/s11207-011-9862-y)

2010

Rubio de Costa, F., Zuccarello, F., Labrosse, N., Fletcher, L., Prosecký, T., and Kašparová, J. (2010) Solar flares: observations vs simulations. Proceedings of the International Astronomical Union, 6 (S274). pp. 182-184. ISSN 1743-9213 (doi:10.1017/S1743921311006880)

Fan, Z.H., Liu, S., Yuan, Q., and Fletcher, L. (2010) Lepton models for TeV emission from SNR RX J1713.7-3946. Astronomy and Astrophysics, 517 (L4). ISSN 0004-6361 (doi:10.1051/0004-6361/201015169)

Foullon, C, Fletcher, L, Hannah, IG, Verwichte, E, Cecconi, B, Nakariakov, VM, Phillips, KJH, and Tan, BL (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)

Gill, CD, Fletcher, L, and Marshall, S (2010) Using Active Contours for Semi-Automated Tracking of UV and EUV Solar Flare Ribbons. Solar Physics, 262 (2). pp. 355-371. (doi:10.1007/s11207-010-9508-5)

Liu, SM, Han, FR, and Fletcher, L (2010) ELEMENTARY ENERGY RELEASE EVENTS IN FLARING LOOPS: EFFECTS OF CHROMOSPHERIC EVAPORATION ON X-RAYS. Astrophysical Journal, 709 (1). pp. 58-66. (doi:10.1088/0004-637X/709/1/58)

Potts, H., Hudson, H.S., Fletcher, L., and Diver, D.A. (2010) The optical depth of white-light flare continuum. Astrophysical Journal, 722 (2). pp. 1514-1521. ISSN 0004-637X

2009

Rubio de Costa, F., Fletcher, L., Labrosse, N., and Zuccarello, F. (2009) Observations of a solar flare and filament eruption in Lyman α and X-rays. Astronomy and Astrophysics, 507 (2). pp. 1005-1014. ISSN 0004-6361 (doi:10.1051/0004-6361/200912651)

Romano, P., Zuccarello, F., Fletcher, L., Rubio da Costa, F., Bain, H.M., and Contarino, L. (2009) Evolution of an eruptive flare loop system. Astronomy and Astrophysics, 498 (3). pp. 901-907. ISSN 0004-6361 (doi:10.1051/0004-6361/200811309)

Bain, H.M., and Fletcher, L. (2009) Hard X-ray emission from a flare-related jet. Astronomy and Astrophysics, 508 (3). pp. 1443-1452. ISSN 0004-6361 (doi:10.1051/0004-6361/200911876)

Battaglia, M., Fletcher, L., and Benz, A.O. (2009) Observations of conduction driven evaporation in the early rise phase of solar flares. Astronomy and Astrophysics, 498 (3). pp. 891-900. ISSN 0004-6361 (doi:10.1051/0004-6361/200811196)

Birn, J, Fletcher, L, Hesse, M, and Neukirch, T (2009) Energy Release And Transfer In Solar Flares: Simulations Of Three-Dimensional Reconnection. Astrophysical Journal, 695 (2). pp. 1151-1162. (doi:10.1088/0004-637X/695/2/1151)

Fletcher, L. (2009) Ultra-violet footpoints as tracers of coronal magnetic connectivity and restructuring during a solar flare. Astronomy and Astrophysics, 493 (1). pp. 241-250. ISSN 0004-6361 (doi:10.1051/0004-6361:20077972)

Hudson, HS, and Fletcher, L (2009) Flares and the chromosphere. Earth Planets and Space, 61 (5). pp. 577-580.

Liu, SM, and Fletcher, L (2009) Elementary Energy Release Events In Solar Flares. Astrophysical Journal Letters, 701 (1). L34-L38. (doi:10.1088/0004-637X/701/1/L34)

McClements, KG, and Fletcher, L (2009) Inertial Alfven Wave Acceleration Of Solar Flare Electrons. Astrophysical Journal, 693 (2). pp. 1494-1499. (doi:10.1088/0004-637X/693/2/1494)

Tripathi, D., Gibson, S.E., Qiu, J., Fletcher, L., Liu, R., Gilbert, H., and Mason, H.E. (2009) Partially-erupting prominences: a comparison between observations and model-predicted observables. Astronomy and Astrophysics, 498 (1). pp. 295-305. ISSN 0004-6361 (doi:10.1051/0004-6361/200809801)

Watson, F, Fletcher, L, Dalla, S, and Marshall, S (2009) Modelling the Longitudinal Asymmetry in Sunspot Emergence: The Role of the Wilson Depression. Solar Physics, 260 (1). pp. 5-19. (doi:10.1007/s11207-009-9420-z)

2008

Dalla, S., Fletcher, L., and Walton, N.A. (2008) Invisible sunspots and rate of solar magnetic flux emergence. Astronomy and Astrophysics, 479 (1). L1-L4. ISSN 0004-6361 (doi:10.1051/0004-6361:20078800)

Fletcher, L, and Hudson, HS (2008) Impulsive phase flare energy transport by large-scale alfven waves and the electron acceleration problem. Astrophysical Journal, 675 (2). pp. 1645-1655. ISSN 0004-637X (doi:10.1086/527044)

Krucker, S. et al. (2008) Hard X-ray emission from the solar corona. Astronomy and Astrophysics Review, 16 (3-4). pp. 155-208. (doi:10.1007/s00159-008-0014-9)

Mckay, RJ, McClements, KG, Thyagaraja, A, and Fletcher, L (2008) Test-particle simulations of collisional impurity transport in rotating spherical tokamak plasmas. Plasma Physics and Controlled Fusion, 50 (6). (doi:10.1088/0741-3335/50/6/065017)

2007

Khan, J.I., Bain, H.M., and Fletcher, L. (2007) The relative timing of supra-arcade downflows in solar flares. Astronomy and Astrophysics, 475 (1). pp. 333-340. ISSN 0004-6361 (doi:10.1051/0004-6361:20077894)

Dalla, S., Fletcher, L., and Walton, N.A. (2007) Flare productivity of newly-emerged paired and isolated solar active regions. Astronomy and Astrophysics, 468 (3). pp. 1103-1108. ISSN 0004-6361 (doi:10.1051/0004-6361:20077177)

Bone, L., Brown, J.C., Fletcher, L., Veronig, A., and White, S. (2007) Birth and evolution of a dense coronal loop in a complex flare region. Astronomy and Astrophysics, 466 (1). pp. 339-346. ISSN 0004-6361 (doi:10.1051/0004-6361:20065129)

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. ISSN 0004-637X (doi:10.1086/510446)

McKay, RJ, McClements, KG, and Fletcher, L (2007) Fast Alfven wave heating and acceleration of ions in a nonuniform magnetoplasma. Astrophysical Journal, 658 . pp. 631-642.

2006

Marshall, S., Fletcher, L., and Hough, K. (2006) Optimal filtering of solar images using soft morphological processing techniques. Astronomy and Astrophysics, 457 (2). pp. 729-736. ISSN 0004-6361 (doi:10.1051/0004-6361:20064852)

Khan, J.I., Fletcher, L., and Nitta, N.V. (2006) Observations of simultaneous coronal loop shrinkage and expansion during the decay phase of a solar flare. Astronomy and Astrophysics, 453 (1). pp. 335-339. ISSN 0004-6361 (doi:10.1051/0004-6361:20054604)

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. ISSN 0038-0938 (doi:10.1007/s11207-006-0139-9)

2005

Foullon, C., Verwichte, E., Nakariakov, V.M., and Fletcher, L. (2005) X-ray quasi-periodic pulsations in solar flares as magnetohydrodynamic oscillations. Astronomy and Astrophysics, 440 (2). L59-L62. ISSN 0004-6361 (doi:10.1051/0004-6361:200500169)

Harra, L.K., Demoulin, P., Mandrini, C.H., Matthews, S.A., van Driel-Gesztelyi, L., Culhane, J.L., and Fletcher, L. (2005) Flows in the solar atmosphere due to the eruptions on the 15th July, 2002. Astronomy and Astrophysics, 438 (3). pp. 1099-1106. ISSN 0004-6361 (doi:10.1051/0004-6361:20052965)

Diver, DA, Fletcher, L, and Potts, HE (2005) Fip enhancement by Alfven ionization. Solar Physics, 227 . pp. 207-215. (doi:10.1007/s11207-005-2447-x)

Fletcher, L (2005) The observational motivation for computational advances in solar flare physics. Space Science Reviews, 121 . pp. 141-152. (doi:10.1007/s11214-006-7181-7)

Hamilton, B, Fletcher, L, McClements, KG, and Thyagaraja, A (2005) Electron acceleration at reconnecting X-points in solar flares. Astrophysical Journal, 625 . pp. 496-505.

Ko, YK et al. (2005) Multialtitude observations of a coronal jet during the third Whole Sun Month Campaign. Astrophysical Journal, 623 . pp. 519-539.

2004

Fletcher, L., Pollock, J.A., and Potts, H.E. (2004) Tracking of TRACE ultraviolet flare footpoints. Solar Physics, 222 (2). pp. 279-298. ISSN 0038-0938 (doi:10.1023/B:SOLA.0000043580.89730.4d)

McClements, K.G., Thyagaraja, A., Ben Ayed, N., and Fletcher, L. (2004) Electron inertial effects on rapid energy redistribution at magnetic X-points. Astrophysical Journal, 609 (1). pp. 423-438. ISSN 0004-637X

2003

Hamilton, B., McClements, K.G., Fletcher, L., and Thyagaraja, A. (2003) Field-guided proton acceleration at reconnecting X-points in flares. Solar Physics, 214 (2). 339 -352. ISSN 0038-0938 (doi:10.1023/A:1024204928413)

2002

Gibson, S.E. et al. (2002) The structure and evolution of a sigmoidal active region. Astrophysical Journal, 574 (2, pt.). 1021 -1038. ISSN 0004-637X

Fletcher, L., and Hudson, H.S. (2002) Spectral and spatial variations of flare hard X-ray footpoints. Solar Physics, 210 (1-2). 307 -321. ISSN 0038-0938 (doi:10.1023/A:1022479610710)

2001

Fletcher, L., and Hudson, H. (2001) The magnetic structure and generation of EUV flare ribbons. Solar Physics, 204 (1-2). pp. 69-89. ISSN 0038-0938 (doi:10.1023/A:1014275821318)

Fletcher, L., Metcalf, T.R., Alexander, D., Brown, D.S., and Ryder, L.A. (2001) Evidence for the flare trigger site and three-dimensional reconnection in multiwavelength observations of a solar flare. Astrophysical Journal, 554 (1, pt.). 451 -463. ISSN 0004-637X (doi:10.1086/321377)

Fletcher, L., Fuentes, M.C.L., Mandrini, C.H., Schmieder, B., Demoulin, P., Mason, H.E., Young, P.R., and Nitta, N. (2001) A relationship between transition region brightenings, abundances, and magnetic topology. Solar Physics, 203 (2). 255 -287. ISSN 0038-0938 (doi:10.1023/A:1013302317042)

2000

Schmieder, B., Deng, Y., Mandrini, C.H., Rudawy, P., Nitta, N., Mason, H., Fletcher, L., Martens, P., and Brynildsen, N. (2000) Dynamics in restructuring active regions observed during SOHO/Yohkoh/GBO campaigns. Advances in Space Research, 25 (9). 1879 -1882. ISSN 0273-1177 (doi:10.1016/S0273-1177(99)00600-6)

1999

Aschwanden, M.J., Fletcher, L., Sakao, T., Kosugi, T., and Hudson, H. (1999) Electron trapping and precipitation in asymmetric solar flare loops. In: International Astronomical Union; Highly energetic physical processes and mechanisms for emission from astrophysical plasmas, July 1999, Bozeman, MT, USA.