COFFIES Research Highlights

We invite all to use our public ADS Library of COFFIES Publications, where the most up-to-date references can be found. COFFIES Members, please notify the CET of any publications acknowledging COFFIES that may be missing from the library.

To acknowledging the COFFIES collaboration in your publications, please include the following statement in your acknowledgments section:

This work was done in collaboration with the COFFIES DRIVE Science Center.

If the work was directly supported by COFFIES funding, please include the COFFIES grant number in the following statement:

This work was supported [in part] by the COFFIES DSC grant number 80NSSC22M0162.

Publications

* Denotes leveraged work – no direct COFFIES funding

Sub-surface Plasma Flows and the Flare Productivity of Solar Active Regions Lekshmi, B, Jain, Kiran, Komm, Rudolf W., & Nandy, Dibyendu 2022, arXiv e-prints, arXiv:2210.09820, DOI: N/A [ADS]
Effects of Emerging Bipolar Magnetic Regions in Mean-field Dynamo Model of Solar Cycles 23 and 24 Pipin, V. V., Kosovichev, A. G., & Tomin, V. E. 2022, arXiv e-prints, arXiv:2210.08764, DOI:N/A [ADS]
Characterizing the Umbral Magnetic Knots of δ-Sunspots Norton, Aimee A., Levens, Peter J., Knizhnik, Kalman J., Linton, Mark G., & Liu, Yang 2022, The Astrophysical Journal, DOI:10.3847/1538-4357/ac8eb2 [ADS]
Is the Subsurface Meridional Flow Zero at the Equator? Komm, R. 2022, Solar Physics, DOI:10.1007/s11207-022-02027-z [ADS]
Implicit large eddy simulations of global solar convection: effects of numerical resolution in non-rotating and rotating cases Guerrero, G., Stejko, A. M., Kosovichev, A. G., Smolarkiewicz, P. K, & Strugarek, A. 2022, arXiv e-prints, arXiv:2208.05738, DOI: N/A [ADS]
* Solar-like to Antisolar Differential Rotation: A Geometric Interpretation Camisassa, Maria E. & Featherstone, Nicholas A. 2022, The Astrophysical Journal, DOI:10.3847/1538-4357/ac879f [ADS]
Constraining Global Solar Models through Helioseismic Analysis Stejko, Andrey M., Kosovichev, Alexander G., Featherstone, Nicholas A., Guerrero, Gustavo, Hindman, Bradley W., Matilsky, Loren I., & Warnecke, Jörn 2022, The Astrophysical Journal, DOI:10.3847/1538-4357/ac7a44 [ADS]
On the effect of surface bipolar magnetic regions on the convection zone dynamo Pipin, V. V. 2022, Monthly Notices of the Royal Astronomical Society, DOI:10.1093/mnras/stac1434 [ADS]
Detection of Travel Time Anisotropy from Subsurface Horizontal Magnetic Fields Stefan, John T. & Kosovichev, Alexander G. 2022, The Astrophysical Journal, DOI:10.3847/1538-4357/ac602a [ADS]
The Rise of Buoyant Magnetic Structures through Convection with a Background Magnetic Field Manek, Bhishek, Pontin, Christina, & Brummell, Nicholas 2022, The Astrophysical Journal, DOI:10.3847/1538-4357/ac5828 [ADS]
Advances and Challenges in Observations and Modeling of the Global-Sun Dynamics and Dynamo Kosovichev, A. G., Guerrero, G., Stejko, A. M., Pipin, V. V., & Getling, A. V. 2022, arXiv e-prints, arXiv:2203.10721, DOI: N/A [ADS]
3D Radiative Hydrodynamic Modeling of the Near-Surface Shear Layer in the Solar Convection Zone Kitiashvili, Irina N., Kosovichev, Alexander G., Wray, Alan A., Sadykov, Viacheslav M., & Guerrero, Gustavo 2022, arXiv e-prints, arXiv:2203.01484, DOI: N/A [ADS]
On the Dynamics of Overshooting Convection in Spherical Shells: Effect of Density Stratification and Rotation Korre, Lydia & Featherstone, Nicholas A. 2021, The Astrophysical Journal, DOI:10.3847/1538-4357/ac2dea [ADS]
What Seismic Minimum Reveals about Solar Magnetism below the Surface Jain, Kiran, Jain, Niket, Tripathy, Sushanta C., & Dikpati, Mausumi 2022, The Astrophysical Journal, DOI:10.3847/2041-8213/ac3de9 [ADS]
Numerical Convergence of 2D Solar Convection in Implicit Large-eddy Simulations Nogueira, H. D., Guerrero, G., Smolarkiewicz, P. K., & Kosovichev, A. G. 2022, The Astrophysical Journal, DOI:10.3847/1538-4357/ac54b7 [ADS]
Spatial Spectrum of Solar Convection from Helioseismic Data: Flow Scales and Time Variations Getling, Alexander V. & Kosovichev, Alexander G. 2022, arXiv e-prints, arXiv:2201.00638, DOI: N/A [ADS]
Double-diffusive Magnetic Layering, Hughes, D. W. & Brummell, N. H. 2021, The Astrophysical Journal, DOI:10.3847/1538-4357/ac2057 [ADS]
Dynamical Splitting of Spot-producing Magnetic Rings in a Nonlinear Shallow-water Model, Dikpati, Mausumi, Norton, Aimee A., McIntosh, Scott W., & Gilman, Peter A. 2021, The Astrophysical Journal, DOI:10.3847/1538-4357/ac1359 [ADS]
Analysis of Time-Distance Helioseismology for Detection of Emerging Active Regions, Stefan, John T., Kosovichev, Alexander G., & Stejko, Andrey M. 2021, The Astrophysical Journal DOI:10.3847/1538-4357/abf2bf [ADS]
Reconciling various solar Rossby wave observations using global (M)HD models, Dikpati, M., Gilman, P. A., McIntosh, S. W., & Zaqarashvili, T. V. 2021, American Astronomical Society Meeting Abstracts, Bulletin of the AAS, 53(6) [ADS]
On the dynamical interaction between overshooting convection and an underlying dipole magnetic field - I. The non-dynamo regime, Korre, L., Brummell, N., Garaud, P., and Guervilly, C. 2021, Monthly Notices of the Royal Astronomical Society, arXiv:2008.01857, DOI:10.1093/mnras/stab477 [ADS]
Forward Modeling Helioseismic Signatures of One- and Two-cell Meridional Circulation, Stejko, A.M., Kosovichev, A.G., and Pipin, V.V. 2021, The Astrophysical Journal, arXiv:2101.01220, DOI:10.3847/1538-4357/abec70 [ADS]
Deciphering the Deep Origin of Active Regions via Analysis of Magnetograms, Dikpati, M., McIntosh, S.W., Chatterjee, S., Norton, A.A., Ambroz, P., Gilman, P.A., Jain, K., and Munoz-Jaramillo, A. 2021, The Astrophysical Journal, DOI:10.3847/1538-4357/abe043 [ADS]
Helioseismic Modeling of Background Flows, Stejko, A.M., Kosovichev, A.G., and Mansour, N.N. 2021, The Astrophysical Journal Supplement Series, arXiv:2011.03131, DOI:10.3847/1538-4365/abd3fe [ADS]
Divergence and Vorticity of Subsurface Flows During Solar Cycles 23 and 24 Komm, R., Howe, R., & Hill, F. 2021, Solar Physics, DOI:10.1007/s11207-021-01799-0 [ADS]
On the origin of the solar hemispherical helicity rules: Simulations of the rise of magnetic flux concentrations in a background field, Manek, B. and Brummell, N. 2021, ApJ, arXiv:2101.03472, DOI:10.3847/1538-4357/abd859 [ADS]
* Oscillations observed in umbra, plage, quiet-Sun and the polarity inversion line of active region 11158 using Helioseismic Magnetic Imager/Solar Dynamics Observatory data, Norton, A.A., Stutz, R.B., and Welsch, B.T. 2021, Philosophical Transactions of the Royal Society of London Series A, arXiv:2101.01349, DOI:10.1098/rsta.2020.0175 [ADS]
* Onset of Inertial Magnetoconvection in Rotating Fluid Spheres, Simitev, R.D. and Busse, F.H. 2021, Fluids, arXiv:2101.03472, DOI:10.3390/fluids6010041
* Effects of Shell Thickness on Cross-Helicity Generation in Convection-Driven Spherical Dynamos, Silva, L., Gupta, P., MacTaggart, D., Simitev, R.D. 2020, Fluids, DOI:10.3390/fluids5040245
Evolution of Subsurface Zonal and Meridional Flows in Solar Cycle 24 from Helioseismological Data, Getling, A.V., Kosovichev, A.G., and Zhao, J. 2020, ApJL, arXiv:2012.15555, DOI:10.3847/2041-8213/abe45a [ADS]
Analysis of Time-Distance Helioseismology for Detection of Emerging Active Regions , Stefan, J.T., Kosovichev, A.G., and Stejko, A.M. 2021, The Astrophysical Journal, arXiv:2012.01367, DOI:10.3847/1538-4357/abf2bf [ADS]
* Solar-cycle-related Changes in the Helium Ionization Zones of the Sun, Watson, C.B. and Basu, S. 2020, The Astrophysical Journal, arXiv:2010.11215, DOI:10.3847/2041-8213/abc348 [ADS]
Machine-learning Approach to Identification of Coronal Holes in Solar Disk Images and Synoptic Maps, Illarionov, E., Kosovichev, A., and Tlatov, A. 2020, The Astrophysical Journal, arXiv:2006.08529, DOI:10.3847/1538-4357/abb94d [ADS]
* The Coronal Global Evolutionary Model: Using HMI Vector Magnetogram and Doppler Data to Determine Coronal Magnetic Field Evolution, Hoeksema, J.T., Abbett, W.P., Bercik, D.J., Cheung, M.C.M., DeRosa, M.L., Fisher, G.H., Hayashi, K., Kazachenko, M.D., Liu, Y., Lumme, E., Lynch, B.J., Sun, X., and Welsch, B.T. 2020, The Astrophysical Journal Supplement Series, arXiv:2006.14579, DOI:10.3847/1538-4365/abb3fb [ADS]
* Rotational dependence of turbulent transport coefficients in global convective dynamo simulations of solar-like stars, Warnecke, J. and Käpylä, M.J. 2020, Astronomy and Astrophysics, arXiv:1910.06776, DOI:10.1051/0004-6361/201936922 [ADS]
Torsional Oscillations in Dynamo Models with Fluctuations and Potential for Helioseismic Predictions of the Solar Cycles, Pipin, V.V. and Kosovichev, A.G. 2020, The Astrophysical Journal, arXiv:2004.08537, DOI:10.3847/1538-4357/aba4ad [ADS]
* 70 Years of Chromospheric Solar Activity and Dynamics, Bertello, L., Pevtsov, A.A., and Ulrich, R.K. 2020, The Astrophysical Journal, DOI:10.3847/1538-4357/ab9746 [ADS]
* Hydrodynamic Properties of the Sun’s Giant Cellular Flows, Hathaway, D.H. and Upton, L.A. 2021, ApJ, arXiv:2006.06084, DOI:10.3847/1538-4357/abcbfa [ADS]
Physics of Magnetohydrodynamic Rossby Waves in the Sun, Dikpati, M., Gilman, P.A., Chatterjee, S., McIntosh, S.W., and Zaqarashvili, T.V. 2020, The Astrophysical Journal, DOI:10.3847/1538-4357/ab8b63 [ADS]
* Application of Synoptic Magnetograms to Global Solar Activity Forecast, Kitiashvili, I.N. 2020, The Astrophysical Journal, arXiv:1910.00820, DOI:10.3847/1538-4357/ab64e7 [ADS]
* Realistic 3D MHD modeling of self-organized magnetic structuring of the solar corona, Kitiashvili, I.N., Wray, A.A., Sadykov, V., Kosovichev, A.G., and Mansour, N.N. 2020, IAU Symposium, DOI:10.1017/S1743921320001532 [ADS]
* Global evolution of solar magnetic fields and prediction of activity cycles, Kitiashvili, I.N. 2020, IAU Symposium, arXiv:2003.04563, DOI:10.1017/S174392132000071X [ADS]
* Confinement of Magnetic Fields Below the Solar Convection Zone, Brummell, N. 2020, Astrophysics and Space Science Proceedings, DOI:10.1007/978-3-030-55336-4_31 [ADS]
* Influence of Turbulence on an Essentially Nonlinear Dynamo Mechanism, Noone Wade, J.B. and Brummell, N. 2020, Astrophysics and Space Science Proceedings, DOI:10.1007/978-3-030-55336-4_28 [ADS]
* Solar Hemispheric Helicity Rules: A New Explanation, Manek, B., Brummell, N., and Lee, D. 2020, Astrophysics and Space Science Proceedings, DOI:10.1007/978-3-030-55336-4_18 [ADS]
* On Active Region Emergence Precursors, Korzennik, S.G. 2020, Astrophysics and Space Science Proceedings, DOI:10.1007/978-3-030-55336-4_17 [ADS]

Posters

SPD Meeting 2020

Early Detection of Emerging Magnetic Flux, Stefan, J. & Kosovichev, A., Session 204.01
Modeling Internal Solar Oscillations, Stejko, A. & Kosovichev, A., Session 204.02

AGU Fall Meeting 2020

Potential origins of the solar hemispherical helicity rule: Simulations of rising flux tubes in a background field, Manek, B. & Brummell, N., SH006-03
Global Solar Flows and Magnetic Fields: Observing, Simulating and Predicting Their Impact on the Heliosphere and Terrestrial Atmosphere, Dikpati, M., Braun, D. C., Featherstone, N.A., Komm, R., Liu, Y., Scherrer, P.H., Upton. L.A. & Wang, H., SH002-0008
Using New Acoustically-Derived Solar Far-Side Magnetic-Flux Maps for Data Assimilation in Flux Transport Models, Hess Webber, S.A., Chen, R., DeRosa, M.L., Upton, L.A. & Zhao, J., SH002-0005
Time Dependence of the Solar Rotation Rate, Ulrich, R.K., Boyden, J.E., Tran, T. & Bertello, L., SH002-0009
Tracking Movement of Coronal Holes from Long Term McA Data, Harris, J., Dikpati, M., Gibson, S.E. & Hewins, I.M., SH002-0010
Derivation of Toroid Patterns from Analysis of Magnetograms And Inferring Their Deep-origin, Chatterjee, S., Dikpati, M., McIntosh, S.W., Norton, A.A., Ambroz, P, Gilman, P., Jain, K. & Munoz-Jaramillo, A., SH002-0013
Turbulent Confinement of Large-Scale, Poloidal Magnetic Fields to Stellar Radiative Zones, Korre, L., Brummell, N.H., Garaud, P. & Guervilly, C., SH002-0019
MHD of double-bands representing extended solar cycle, Belucz, B., Dikpati, M., McIntosh, S.W. & Erdelyi, R., SH002-0020
Plus many more…