Joel C Allred

Joel C Allred

  • RSCH AST, SOLAR & SOLAR TRSTRI STD
  • 301.286.6892
  • NASA/GSFC
  • Mail Code: 671
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    I am a research solar physicist in the Heliophysics Division of NASA's Goddard Space Flight Center.

    Research Interests

    Solar flares

    I am active in researching the hydrodynamic evolution of solar flares. Specifically, in modeling the radiation produced in response to solar flare heating. I also study the transport of flare-accelerated particles through the solar atmosphere and how these heat and deposit momentum throughout the solar atmosphere.

    Modeling radiative transfer

    I model the transfer of radiation produced during solar flares. Specifically, I focus on the non-LTE, optically-thick, radiation produced in the solar chromosphere, but I also model emission lines in the optically thin corona. A particularly long-standing interest of mine is to understand the origin of white light flares.

    Modeling particle transport at the kinetic scale

    I am interested in modeling the transport of non-thermal particles accelerated during solar flares. To do this, I have developed a numerical code to solve the Fokker-Planck equation for conditions appropriate to the solar corona and into the chromosphere.

    Positions/Employment

    9/2010 - Present

    Research Astrophysicist

    NASA, Goddard Space Flight Center
    2013 - Present

    IRIS Deputy Project Scientist

    NASA, Goddard Space Flight Center

    Education

    2005 Ph.D., Department of Physics, University of Washington, Seattle, WA


    Professional Societies

    American Astronomical Society - Solar Physics Division, 2003 - Present
    American Geophysical Union , 2005 - Present

    Professional Service

    I serve on Goddard's LGBTQ+ Employee Resource Group

    Awards

    2019 Robert H. Goddard Award for Science

    2020 Agency Early Career Achievement Medal

    Selected Publications

    Refereed

    Allred, J. C., G. S. Kerr, and A. Gordon Emslie. 2022. "Solar Flare Heating with Turbulent Suppression of Thermal Conduction." The Astrophysical Journal, 931 (1): 60 [10.3847/1538-4357/ac69e8]

    Kowalski, A. F., J. C. Allred, M. Carlsson, et al. G. S. Kerr, P.-E. Tremblay, K. Namekata, D. Kuridze, and H. Uitenbroek. 2022. "The Atmospheric Response to High Nonthermal Electron-beam Fluxes in Solar Flares. II. Hydrogen-broadening Predictions for Solar Flare Observations with the Daniel K. Inouye Solar Telescope." The Astrophysical Journal, 928 (2): 190 [10.3847/1538-4357/ac5174]

    Cheung, M. C., J. Martínez-Sykora, P. Testa, et al. B. De Pontieu, G. Chintzoglou, M. Rempel, V. Polito, G. S. Kerr, K. K. Reeves, L. Fletcher, M. Jin, D. Nóbrega-Siverio, S. Danilovic, P. Antolin, J. Allred, V. Hansteen, I. Ugarte-Urra, E. DeLuca, D. Longcope, S. Takasao, M. L. DeRosa, P. Boerner, S. Jaeggli, N. V. Nitta, A. Daw, M. Carlsson, and L. Golub. 2022. "Probing the Physics of the Solar Atmosphere with the Multi-slit Solar Explorer (MUSE). II. Flares and Eruptions." The Astrophysical Journal, 926 (1): 53 [10.3847/1538-4357/ac4223]

    Alaoui, M., G. D. Holman, J. C. Allred, and R. T. Eufrasio. 2021. "Role of Suprathermal Runaway Electrons Returning to the Acceleration Region in Solar Flares." The Astrophysical Journal, 917 (2): 74 [10.3847/1538-4357/ac0820]

    Kerr, G. S., Y. Xu, J. C. Allred, et al. V. Polito, V. M. Sadykov, N. Huang, and H. Wang. 2021. "He i 10830 Å Dimming during Solar Flares. I. The Crucial Role of Nonthermal Collisional Ionizations." The Astrophysical Journal, 912 (2): 153 [10.3847/1538-4357/abf42d]

    Allred, J. C., M. Alaoui Abdallaoui, A. F. Kowalski, and G. S. Kerr. 2020. "Modeling the Transport of Nonthermal Particles in Flares Using Fokker-Planck Kinetic Theory." The Astrophysical Journal, 902 (1): 16 [10.3847/1538-4357/abb239]

    Kerr, G. S., J. C. Allred, and V. Polito. 2020. "Solar Flare Arcade Modeling: Bridging the Gap from 1D to 3D Simulations of Optically Thin Radiation." The Astrophysical Journal, 900 (1): 18 [10.3847/1538-4357/abaa46]

    Namekata, K., H. Maehara, R. Sasaki, et al. H. Kawai, Y. Notsu, A. F. Kowalski, J. C. Allred, W. Iwakiri, Y. Tsuboi, K. L. Murata, M. Niwano, K. Shiraishi, R. Adachi, K. Iida, M. Oeda, S. Honda, M. Tozuka, N. Katoh, H. Onozato, S. Okamoto, K. Isogai, M. Kimura, N. Kojiguchi, Y. Wakamatsu, Y. Tampo, D. Nogami, and K. Shibata. 2020. "Optical and X-ray observations of stellar flares on an active M dwarf AD Leonis with the Seimei Telescope, SCAT, NICER, and OISTER." Publications of the Astronomical Society of Japan, 72 (4): [10.1093/pasj/psaa051]

    Kuridze, D., M. Mathioudakis, P. Heinzel, et al. J. Koza, H. Morgan, R. Oliver, A. F. Kowalski, and J. C. Allred. 2020. "Spectral Characteristics and Formation Height of Off-limb Flare Ribbons." The Astrophysical Journal, 896 (2): 120 [10.3847/1538-4357/ab9603]

    Graham, D. R., G. Cauzzi, L. Zangrilli, et al. A. Kowalski, P. Simões, and J. Allred. 2020. "Spectral Signatures of Chromospheric Condensation in a Major Solar Flare." The Astrophysical Journal, 895 (1): 6 [10.3847/1538-4357/ab88ad]

    Kerr, G. S., M. Carlsson, and J. C. Allred. 2019. "Modeling Mg ii during Solar Flares. II. Nonequilibrium Effects." The Astrophysical Journal, 885 (2): 119 [10.3847/1538-4357/ab48ea]

    Kerr, G. S., J. C. Allred, and M. Carlsson. 2019. "Modeling Mg II During Solar Flares. I. Partial Frequency Redistribution, Opacity, and Coronal Irradiation." The Astrophysical Journal, 883 (1): 57 [10.3847/1538-4357/ab3c24]

    Zhu, Y., A. F. Kowalski, H. Tian, et al. H. Uitenbroek, M. Carlsson, and J. C. Allred. 2019. "Modeling Mg ii h, k and Triplet Lines at Solar Flare Ribbons." The Astrophysical Journal, 879 (1): 19 [10.3847/1538-4357/ab2238]

    Kowalski, A. F., E. Butler, A. N. Daw, et al. L. Fletcher, J. C. Allred, B. D. Pontieu, G. S. Kerr, G. Cauzzi, A. F. Kowalski, and E. Bulter. 2019. "Spectral Evidence for Heating at Large Column Mass in Umbral Solar Flare Kernels. I. IRIS Near-UV Spectra of the X1 Solar Flare of 2014 October 25." The Astrophysical Journal, 878 (2): 135 [10.3847/1538-4357/ab1f8b]

    Kerr, G. S., M. Carlsson, J. C. Allred, P. R. Young, and A. N. Daw. 2019. "SI iv Resonance Line Emission during Solar Flares: Non-LTE, Nonequilibrium, Radiation Transfer Simulations." The Astrophysical Journal, 871 (1): 23 [10.3847/1538-4357/aaf46e]

    Procházka, O., A. Reid, R. O. Milligan, et al. P. J. Simões, J. C. Allred, and M. Mathioudakis. 2018. "Reproducing Type II White-light Solar Flare Observations with Electron and Proton Beam Simulations." The Astrophysical Journal, 862 (1): 76 [10.3847/1538-4357/aaca37]

    Kowalski, A. F., J. C. Allred, H. Uitenbroek, et al. P.-E. Tremblay, S. Brown, M. Carlsson, R. A. Osten, J. P. Wisniewski, and S. L. Hawley. 2017. "Hydrogen Balmer Line Broadening in Solar and Stellar Flares." The Astrophysical Journal, 837 (2): 125 [10.3847/1538-4357/aa603e]

    Kowalski, A. F., J. C. Allred, A. Daw, G. Cauzzi, and M. Carlsson. 2017. "The Atmospheric Response to High Nonthermal Electron Beam Fluxes in Solar Flares. I. Modeling the Brightest NUV Footpoints in the X1 Solar Flare of 2014 March 29." The Astrophysical Journal, 836 (1): 12 [10.3847/1538-4357/836/1/12]

    Reid, A., M. Mathioudakis, A. Kowalski, J. G. Doyle, and J. C. Allred. 2017. "Solar Ellerman Bombs in 1D Radiative Hydrodynamics." The Astrophysical Journal, 835 (2): L37 [10.3847/2041-8213/835/2/l37]

    Kuridze, D., M. Mathioudakis, D. J. Christian, et al. A. F. Kowalski, D. B. Jess, S. D. Grant, T. Kawate, P. J. Simões, J. C. Allred, and F. P. Keenan. 2016. "OBSERVATIONS AND SIMULATIONS OF THE Na i D1LINE PROFILES IN AN M-CLASS SOLAR FLARE." The Astrophysical Journal, 832 (2): 147 [10.3847/0004-637x/832/2/147]

    Costa, F. R., L. Kleint, V. Petrosian, W. Liu, and J. C. Allred. 2016. "DATA-DRIVEN RADIATIVE HYDRODYNAMIC MODELING OF THE 2014 MARCH 29 X1.0 SOLAR FLARE." The Astrophysical Journal, 827 (1): 38 [10.3847/0004-637x/827/1/38]

    Kerr, G. S., L. Fletcher, A. J. Russell, and J. C. Allred. 2016. "Simulations of the Mg II k and Ca II 8542 lines from an Alfven Wave-heated Flare Chromosphere." The Astrophysical Journal, 827 (2): 101.

    Kuridze, D., M. Mathioudakis, P. J. Simões, et al. L. R. Voort, M. Carlsson, S. Jafarzadeh, J. C. Allred, A. F. Kowalski, M. Kennedy, L. Fletcher, D. Graham, and F. P. Keenan. 2015. "HαLINE PROFILE ASYMMETRIES AND THE CHROMOSPHERIC FLARE VELOCITY FIELD." The Astrophysical Journal, 813 (2): 125 [10.1088/0004-637x/813/2/125]

    Allred, J. C., A. F. Kowalski, and M. Carlsson. 2015. "A Unified Computational Model for Solar and Stellar Flares." Astrophysical Journal, 809 (104): 14pp [10.1088/0004-637X/809/1/104]

    Kowalski, A. F., S. L. Hawley, M. Carlsson, et al. J. C. Allred, H. Uitenbroek, R. A. Osten, and G. Holman. 2015. "New Insights into White-Light Flare Emission from Radiative-Hydrodynamic Modeling of a Chromospheric Condensation." Solar Physics, 290 (12): 3487-3523 [10.1007/s11207-015-0708-x]

    Kennedy, M. B., R. O. Milligan, J. C. Allred, M. Mathioudakis, and F. P. Keenan. 2015. "Radiative hydrodynamic modelling and observations of the X-class solar flare on 2011 March 9." Astronomy & Astrophysics, 578: A72 [10.1051/0004-6361/201425144]

    Testa, P., B. De Pontieu, J. Allred, et al. M. Carlsson, F. Reale, A. Daw, V. Hansteen, J. Martinez-Sykora, W. Liu, E. E. DeLuca, L. Golub, S. McKillop, K. Reeves, S. Saar, H. Tian, J. Lemen, A. Title, P. Boerner, N. Hurlburt, T. D. Tarbell, J. P. Wuelser, L. Kleint, C. Kankelborg, and S. Jaeggli. 2014. "Evidence of nonthermal particles in coronal loops heated impulsively by nanoflares." Science, 346 (6207): [10.1126/science.1255724]

    Milligan, R. O., G. S. Kerr, B. R. Dennis, et al. H. S. Hudson, L. Fletcher, J. C. Allred, P. C. Chamberlin, J. Ireland, M. Mathioudakis, and F. P. Keenan. 2014. "THE RADIATED ENERGY BUDGET OF CHROMOSPHERIC PLASMA IN A MAJOR SOLAR FLARE DEDUCED FROM MULTI-WAVELENGTH OBSERVATIONS." ASTROPHYSICAL JOURNAL, 793: [10.1088/0004-637X/793/2/70]

    Lynch, B. J., A. A. Reinard, T. Mulligan, et al. K. K. Reeves, C. E. Rakowski, J. C. Allred, Y. Li, J. M. Laming, P. J. MacNeice, and J. A. Linker. 2011. "IONIC COMPOSITION STRUCTURE OF CORONAL MASS EJECTIONS IN AXISYMMETRIC MAGNETOHYDRODYNAMIC MODELS." The Astrophysical Journal, 740 (2): 112 [10.1088/0004-637x/740/2/112]

    Hawley, S., L. Walkowicz, J. Allred, and J. Valenti. 2007. "Near‐Ultraviolet Spectra of Flares on YZ CMi." Publications of the Astronomical Society of the Pacific, 119 (851): 67-81 [10.1086/510561]

    Allred, J. C., S. L. Hawley, W. P. Abbett, and M. Carlsson. 2006. "Radiative Hydrodynamic Models of Optical and Ultraviolet Emission from M Dwarf Flares." The Astrophysical Journal, 644 (1): 484-496 [10.1086/503314]

    Paulson, D. B., J. C. Allred, R. B. Anderson, et al. S. L. Hawley, W. D. Cochran, and S. Yelda. 2006. "Optical Spectroscopy of a Flare on Barnard's Star." Publications of the Astronomical Society of the Pacific, 118: 227-235 [10.1086/499497]

    Osten, R. A., S. L. Hawley, J. Allred, et al. C. M. Johns-Krull, A. Brown, and G. M. Harper. 2006. "From Radio to X-Ray: The Quiescent Atmosphere of the dMe Flare Star EV Lacertae." The Astrophysical Journal, 647: 1349-1374 [10.1086/504889]

    Allred, J. C., S. L. Hawley, W. P. Abbett, and M. Carlsson. 2005. "Radiative Hydrodynamic Models of the Optical and Ultraviolet Emission from Solar Flares." The Astrophysical Journal, 630 (1): 573-586 [10.1086/431751]

    Osten, R. A., S. L. Hawley, J. C. Allred, C. M. Johns‐Krull, and C. Roark. 2005. "From Radio to X‐Ray: Flares on the dMe Flare Star EV Lacertae." The Astrophysical Journal, 621 (1): 398-416 [10.1086/427275]

    Fletcher, L., J. Allred, I. Hannah, H. Hudson, and T. Metcalf. 2005. "TRACE white light and RHESSI hard X-rays." AGU Fall Meeting Abstracts, A286-:

    Osten, R. A., S. L. Hawley, J. Allred, et al. C. M. Johns-Krull, C. Roark, C. Ambruster, A. Brown, T. R. Ayres, and J. L. Linsky. 2004. "Multi-Wavelength Observations of EV Lacertae." Stars as Suns : Activity - Evolution and Planets, 219: 249-.

    Hawley, S. L., J. C. Allred, C. M. Johns‐Krull, et al. G. H. Fisher, W. P. Abbett, I. Alekseev, S. I. Avgoloupis, S. E. Deustua, A. Gunn, J. H. Seiradakis, M. M. Sirk, and J. A. Valenti. 2003. "Multiwavelength Observations of Flares on AD Leonis." The Astrophysical Journal, 597 (1): 535-554 [10.1086/378351]

    Brief Bio

    I am a research solar physicist in the Heliophysics Division of NASA's Goddard Space Flight Center.

    Selected Publications

    Refereed

    Allred, J. C., G. S. Kerr, and A. Gordon Emslie. 2022. "Solar Flare Heating with Turbulent Suppression of Thermal Conduction." The Astrophysical Journal 931 (1): 60 [10.3847/1538-4357/ac69e8]

    Kowalski, A. F., J. C. Allred, M. Carlsson, et al. G. S. Kerr, P.-E. Tremblay, K. Namekata, D. Kuridze, and H. Uitenbroek. 2022. "The Atmospheric Response to High Nonthermal Electron-beam Fluxes in Solar Flares. II. Hydrogen-broadening Predictions for Solar Flare Observations with the Daniel K. Inouye Solar Telescope." The Astrophysical Journal 928 (2): 190 [10.3847/1538-4357/ac5174]

    Cheung, M. C., J. Martínez-Sykora, P. Testa, et al. B. De Pontieu, G. Chintzoglou, M. Rempel, V. Polito, G. S. Kerr, K. K. Reeves, L. Fletcher, M. Jin, D. Nóbrega-Siverio, S. Danilovic, P. Antolin, J. Allred, V. Hansteen, I. Ugarte-Urra, E. DeLuca, D. Longcope, S. Takasao, M. L. DeRosa, P. Boerner, S. Jaeggli, N. V. Nitta, A. Daw, M. Carlsson, and L. Golub. 2022. "Probing the Physics of the Solar Atmosphere with the Multi-slit Solar Explorer (MUSE). II. Flares and Eruptions." The Astrophysical Journal 926 (1): 53 [10.3847/1538-4357/ac4223]

    Alaoui, M., G. D. Holman, J. C. Allred, and R. T. Eufrasio. 2021. "Role of Suprathermal Runaway Electrons Returning to the Acceleration Region in Solar Flares." The Astrophysical Journal 917 (2): 74 [10.3847/1538-4357/ac0820]

    Kerr, G. S., Y. Xu, J. C. Allred, et al. V. Polito, V. M. Sadykov, N. Huang, and H. Wang. 2021. "He i 10830 Å Dimming during Solar Flares. I. The Crucial Role of Nonthermal Collisional Ionizations." The Astrophysical Journal 912 (2): 153 [10.3847/1538-4357/abf42d]

    Allred, J. C., M. Alaoui Abdallaoui, A. F. Kowalski, and G. S. Kerr. 2020. "Modeling the Transport of Nonthermal Particles in Flares Using Fokker-Planck Kinetic Theory." The Astrophysical Journal 902 (1): 16 [10.3847/1538-4357/abb239]

    Kerr, G. S., J. C. Allred, and V. Polito. 2020. "Solar Flare Arcade Modeling: Bridging the Gap from 1D to 3D Simulations of Optically Thin Radiation." The Astrophysical Journal 900 (1): 18 [10.3847/1538-4357/abaa46]

    Namekata, K., H. Maehara, R. Sasaki, et al. H. Kawai, Y. Notsu, A. F. Kowalski, J. C. Allred, W. Iwakiri, Y. Tsuboi, K. L. Murata, M. Niwano, K. Shiraishi, R. Adachi, K. Iida, M. Oeda, S. Honda, M. Tozuka, N. Katoh, H. Onozato, S. Okamoto, K. Isogai, M. Kimura, N. Kojiguchi, Y. Wakamatsu, Y. Tampo, D. Nogami, and K. Shibata. 2020. "Optical and X-ray observations of stellar flares on an active M dwarf AD Leonis with the Seimei Telescope, SCAT, NICER, and OISTER." Publications of the Astronomical Society of Japan 72 (4): [10.1093/pasj/psaa051]

    Kuridze, D., M. Mathioudakis, P. Heinzel, et al. J. Koza, H. Morgan, R. Oliver, A. F. Kowalski, and J. C. Allred. 2020. "Spectral Characteristics and Formation Height of Off-limb Flare Ribbons." The Astrophysical Journal 896 (2): 120 [10.3847/1538-4357/ab9603]

    Graham, D. R., G. Cauzzi, L. Zangrilli, et al. A. Kowalski, P. Simões, and J. Allred. 2020. "Spectral Signatures of Chromospheric Condensation in a Major Solar Flare." The Astrophysical Journal 895 (1): 6 [10.3847/1538-4357/ab88ad]

    Kerr, G. S., M. Carlsson, and J. C. Allred. 2019. "Modeling Mg ii during Solar Flares. II. Nonequilibrium Effects." The Astrophysical Journal 885 (2): 119 [10.3847/1538-4357/ab48ea]

    Kerr, G. S., J. C. Allred, and M. Carlsson. 2019. "Modeling Mg II During Solar Flares. I. Partial Frequency Redistribution, Opacity, and Coronal Irradiation." The Astrophysical Journal 883 (1): 57 [10.3847/1538-4357/ab3c24]

    Zhu, Y., A. F. Kowalski, H. Tian, et al. H. Uitenbroek, M. Carlsson, and J. C. Allred. 2019. "Modeling Mg ii h, k and Triplet Lines at Solar Flare Ribbons." The Astrophysical Journal 879 (1): 19 [10.3847/1538-4357/ab2238]

    Kowalski, A. F., E. Butler, A. N. Daw, et al. L. Fletcher, J. C. Allred, B. D. Pontieu, G. S. Kerr, G. Cauzzi, A. F. Kowalski, and E. Bulter. 2019. "Spectral Evidence for Heating at Large Column Mass in Umbral Solar Flare Kernels. I. IRIS Near-UV Spectra of the X1 Solar Flare of 2014 October 25." The Astrophysical Journal 878 (2): 135 [10.3847/1538-4357/ab1f8b]

    Kerr, G. S., M. Carlsson, J. C. Allred, P. R. Young, and A. N. Daw. 2019. "SI iv Resonance Line Emission during Solar Flares: Non-LTE, Nonequilibrium, Radiation Transfer Simulations." The Astrophysical Journal 871 (1): 23 [10.3847/1538-4357/aaf46e]

    Procházka, O., A. Reid, R. O. Milligan, et al. P. J. Simões, J. C. Allred, and M. Mathioudakis. 2018. "Reproducing Type II White-light Solar Flare Observations with Electron and Proton Beam Simulations." The Astrophysical Journal 862 (1): 76 [10.3847/1538-4357/aaca37]

    Kowalski, A. F., J. C. Allred, H. Uitenbroek, et al. P.-E. Tremblay, S. Brown, M. Carlsson, R. A. Osten, J. P. Wisniewski, and S. L. Hawley. 2017. "Hydrogen Balmer Line Broadening in Solar and Stellar Flares." The Astrophysical Journal 837 (2): 125 [10.3847/1538-4357/aa603e]

    Kowalski, A. F., J. C. Allred, A. Daw, G. Cauzzi, and M. Carlsson. 2017. "The Atmospheric Response to High Nonthermal Electron Beam Fluxes in Solar Flares. I. Modeling the Brightest NUV Footpoints in the X1 Solar Flare of 2014 March 29." The Astrophysical Journal 836 (1): 12 [10.3847/1538-4357/836/1/12]

    Reid, A., M. Mathioudakis, A. Kowalski, J. G. Doyle, and J. C. Allred. 2017. "Solar Ellerman Bombs in 1D Radiative Hydrodynamics." The Astrophysical Journal 835 (2): L37 [10.3847/2041-8213/835/2/l37]

    Kuridze, D., M. Mathioudakis, D. J. Christian, et al. A. F. Kowalski, D. B. Jess, S. D. Grant, T. Kawate, P. J. Simões, J. C. Allred, and F. P. Keenan. 2016. "OBSERVATIONS AND SIMULATIONS OF THE Na i D1LINE PROFILES IN AN M-CLASS SOLAR FLARE." The Astrophysical Journal 832 (2): 147 [10.3847/0004-637x/832/2/147]

    Costa, F. R., L. Kleint, V. Petrosian, W. Liu, and J. C. Allred. 2016. "DATA-DRIVEN RADIATIVE HYDRODYNAMIC MODELING OF THE 2014 MARCH 29 X1.0 SOLAR FLARE." The Astrophysical Journal 827 (1): 38 [10.3847/0004-637x/827/1/38]

    Kerr, G. S., L. Fletcher, A. J. Russell, and J. C. Allred. 2016. "Simulations of the Mg II k and Ca II 8542 lines from an Alfven Wave-heated Flare Chromosphere." The Astrophysical Journal 827 (2): 101

    Kuridze, D., M. Mathioudakis, P. J. Simões, et al. L. R. Voort, M. Carlsson, S. Jafarzadeh, J. C. Allred, A. F. Kowalski, M. Kennedy, L. Fletcher, D. Graham, and F. P. Keenan. 2015. "HαLINE PROFILE ASYMMETRIES AND THE CHROMOSPHERIC FLARE VELOCITY FIELD." The Astrophysical Journal 813 (2): 125 [10.1088/0004-637x/813/2/125]

    Allred, J. C., A. F. Kowalski, and M. Carlsson. 2015. "A Unified Computational Model for Solar and Stellar Flares." Astrophysical Journal 809 (104): 14pp [10.1088/0004-637X/809/1/104]

    Kowalski, A. F., S. L. Hawley, M. Carlsson, et al. J. C. Allred, H. Uitenbroek, R. A. Osten, and G. Holman. 2015. "New Insights into White-Light Flare Emission from Radiative-Hydrodynamic Modeling of a Chromospheric Condensation." Solar Physics 290 (12): 3487-3523 [10.1007/s11207-015-0708-x]

    Kennedy, M. B., R. O. Milligan, J. C. Allred, M. Mathioudakis, and F. P. Keenan. 2015. "Radiative hydrodynamic modelling and observations of the X-class solar flare on 2011 March 9." Astronomy & Astrophysics 578 A72 [10.1051/0004-6361/201425144]

    Testa, P., B. De Pontieu, J. Allred, et al. M. Carlsson, F. Reale, A. Daw, V. Hansteen, J. Martinez-Sykora, W. Liu, E. E. DeLuca, L. Golub, S. McKillop, K. Reeves, S. Saar, H. Tian, J. Lemen, A. Title, P. Boerner, N. Hurlburt, T. D. Tarbell, J. P. Wuelser, L. Kleint, C. Kankelborg, and S. Jaeggli. 2014. "Evidence of nonthermal particles in coronal loops heated impulsively by nanoflares." Science 346 (6207): [10.1126/science.1255724]

    Milligan, R. O., G. S. Kerr, B. R. Dennis, et al. H. S. Hudson, L. Fletcher, J. C. Allred, P. C. Chamberlin, J. Ireland, M. Mathioudakis, and F. P. Keenan. 2014. "THE RADIATED ENERGY BUDGET OF CHROMOSPHERIC PLASMA IN A MAJOR SOLAR FLARE DEDUCED FROM MULTI-WAVELENGTH OBSERVATIONS." ASTROPHYSICAL JOURNAL 793 [10.1088/0004-637X/793/2/70]

    Lynch, B. J., A. A. Reinard, T. Mulligan, et al. K. K. Reeves, C. E. Rakowski, J. C. Allred, Y. Li, J. M. Laming, P. J. MacNeice, and J. A. Linker. 2011. "IONIC COMPOSITION STRUCTURE OF CORONAL MASS EJECTIONS IN AXISYMMETRIC MAGNETOHYDRODYNAMIC MODELS." The Astrophysical Journal 740 (2): 112 [10.1088/0004-637x/740/2/112]

    Hawley, S., L. Walkowicz, J. Allred, and J. Valenti. 2007. "Near‐Ultraviolet Spectra of Flares on YZ CMi." Publications of the Astronomical Society of the Pacific 119 (851): 67-81 [10.1086/510561]

    Allred, J. C., S. L. Hawley, W. P. Abbett, and M. Carlsson. 2006. "Radiative Hydrodynamic Models of Optical and Ultraviolet Emission from M Dwarf Flares." The Astrophysical Journal 644 (1): 484-496 [10.1086/503314]

    Paulson, D. B., J. C. Allred, R. B. Anderson, et al. S. L. Hawley, W. D. Cochran, and S. Yelda. 2006. "Optical Spectroscopy of a Flare on Barnard's Star." Publications of the Astronomical Society of the Pacific 118 227-235 [10.1086/499497]

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