Lead-author papers

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Tamburri C., Kowalski, A., Cauzzi, G., Kazachenko, M., Tritschler, A., Yadav, R., French, R., Notsu, Y., Reardon, D., Tristan, I. (2026) Spectroscopic Analysis and RHD Modeling of the First Ca II H and Hϵ Flare Spectra from DKIST/ViSP. Solar Physics 301 (3), 38

I’ve collected observations of four solar flares with the DKIST during the first few observing cycles. For the first of these, on 19 August 2022, we studied the first investigation of Ca II H and Hϵ flare spectra observed by DKIST in comparison to state-of-the-art flare simulations produced with the RADYN and RH codes.

Our work identified key successes and failures of modern flare models and presented a charge for similar studies of high-resolution DKIST observations that are currently underway… stay tuned!

Read the paper here.

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Tamburri C., Kazachenko, M., Cauzzi, G., Kowalski, A., French, R., Yadav, R., Evans, C., Notsu, Y., Corchado-Albelo, M., Reardon, K., Tritschler, A. (2025) Unveiling Unprecedented Fine Structure in Coronal Flare Loops with DKIST. The Astrophysical Journal Letters, 990 (1), L3

On 8 August 2024, the sun released a massive GOES-class X1.3 solar flare. During our cycle 2 DKIST flare campaign, we observed the decay phase of this flare under excellent seeing conditions, revealing Hα images of highly structured flare ribbons, a top-down view of coronal rain, and the smallest post-reconnection flare loops ever observed — by any telescope.

Read the paper here … and a press release associated with this work here.

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Tamburri, C., Kazachnko, M., Kowalski, A. (2024) The Relationships among Solar Flare Impulsiveness, Energy Release, and Ribbon Development. The Astrophysical Journal, 966 (1), 94

The connection between complex flare-reconnection physics and large-scale magnetic dynamics is not entirely understood, but is likely key to comprehensively understanding how solar flares (and their stellar counterparts) develop. In Tamburri et al. (2024), leveraging the catalog of flares collected in the Solar Dynamics Observatory era (2010 to the present day), we analyze the Sun-as-a-star development in a new way. We classify flares based on the suddenness of their emission and relate this impulsiveness index to spatially-resolved flare dynamics.

Read the paper here.

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Papers as co-author

Kazachenko, M., Albelo-Corchado, M., Tamburri, C., Welsch, B. (2022) **Invited Review: Short-term Variability with the Observations from the Helioseismic and Magnetic Imager (HMI) Onboard the Solar Dynamics Observatory (SDO): Insights into Flare Magnetism.** Solar Physics 297 (5), 59

Yadav, R., Kazachenko, M., … Tamburri, C., et al. (2025) Multiline Spectropolarimetric Observation of Flare Ribbon Fine Structures with ViSP/DKIST. The Astrophysical Journal 989 (2), 183

Goncharenko, L., Tamburri, C., et al. (2021) A new model for ionospheric total electron content: The impact of solar flux proxies and indices. Journal of Geophysical Research: Space Physics 126 (2)

French, R., Kazachenko, M., … Tamburri, C., et al. (2025) Evolution of Flare Ribbon Bead-like Structures in a Solar Flare. The Astrophysical Journal Letters 995 (2), L54

French, R., Ashfield, W., Tamburri, C., et al. (2025) Dual Origins of Rapid Flare Ribbon Downflows in an X9-class Solar Flare. The Astrophysical Journal 995 (2), 182

Gomez, T., Kowalski, A., Tamburri, C., Kerr, G., White, J. (2026) Enigmatic Line Broadening during Solar Flares: Magnetic Field Broadening? The Astrophysical Journal 1005 (1), 65

Corchado Albelo, M., Kazachenko, M., … Tamburri, C., et al. (2026) Evolution of Spatial Complexity in Flare Ribbon Substructure and Its Relationship to Magnetic Reconnection Dynamics. The Astrophysical Journal 1000 (2), 221

Namekata, K., France, K., … Tamburri, C., et al. (2026) Discovery of multi-temperature coronal mass ejection signatures from a young solar analogue. Nature Astronomy 10 (1), 64-75

Lead-author papers

‍ ‍

Tamburri C., Kowalski, A., Cauzzi, G., Kazachenko, M., Tritschler, A., Yadav, R., French, R., Notsu, Y., Reardon, D., Tristan, I. (2026) Spectroscopic Analysis and RHD Modeling of the First Ca II H and Hϵ Flare Spectra from DKIST/ViSP. Solar Physics 301 (3), 38

Read the paper here.

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Tamburri C., Kazachenko, M., Cauzzi, G., Kowalski, A., French, R., Yadav, R., Evans, C., Notsu, Y., Corchado-Albelo, M., Reardon, K., Tritschler, A. (2025) Unveiling Unprecedented Fine Structure in Coronal Flare Loops with DKIST. The Astrophysical Journal Letters, 990 (1), L3

Read the paper here … and a press release associated with this work here.

‍ ‍

Tamburri, C., Kazachnko, M., Kowalski, A. (2024) The Relationships among Solar Flare Impulsiveness, Energy Release, and Ribbon Development. The Astrophysical Journal, 966 (1), 94

Read the paper here.

‍

Papers as co-author

Kazachenko, M., Albelo-Corchado, M., Tamburri, C., Welsch, B. (2022) **Invited Review: Short-term Variability with the Observations from the Helioseismic and Magnetic Imager (HMI) Onboard the Solar Dynamics Observatory (SDO): Insights into Flare Magnetism.** Solar Physics 297 (5), 59

Yadav, R., Kazachenko, M., … Tamburri, C., et al. (2025) Multiline Spectropolarimetric Observation of Flare Ribbon Fine Structures with ViSP/DKIST. The Astrophysical Journal 989 (2), 183

Goncharenko, L., Tamburri, C., et al. (2021) A new model for ionospheric total electron content: The impact of solar flux proxies and indices. Journal of Geophysical Research: Space Physics 126 (2)

French, R., Kazachenko, M., … Tamburri, C., et al. (2025) Evolution of Flare Ribbon Bead-like Structures in a Solar Flare. The Astrophysical Journal Letters 995 (2), L54

French, R., Ashfield, W., Tamburri, C., et al. (2025) Dual Origins of Rapid Flare Ribbon Downflows in an X9-class Solar Flare. The Astrophysical Journal 995 (2), 182

Gomez, T., Kowalski, A., Tamburri, C., Kerr, G., White, J. (2026) Enigmatic Line Broadening during Solar Flares: Magnetic Field Broadening? The Astrophysical Journal 1005 (1), 65

Corchado Albelo, M., Kazachenko, M., … Tamburri, C., et al. (2026) Evolution of Spatial Complexity in Flare Ribbon Substructure and Its Relationship to Magnetic Reconnection Dynamics. The Astrophysical Journal 1000 (2), 221

Namekata, K., France, K., … Tamburri, C., et al. (2026) Discovery of multi-temperature coronal mass ejection signatures from a young solar analogue. Nature Astronomy 10 (1), 64-75

Data Analysis and Other Resources

Daniel K. Inouye Solar Telescope

DKIST Data Center

GitHub - Processing DKIST data for science use

GitHub - VBI Loop Widths

GitHub - SDO Data and Impulsiveness

Lead-author papers

‍ ‍

Tamburri C., Kowalski, A., Cauzzi, G., Kazachenko, M., Tritschler, A., Yadav, R., French, R., Notsu, Y., Reardon, D., Tristan, I. (2026) Spectroscopic Analysis and RHD Modeling of the First Ca II H and Hϵ Flare Spectra from DKIST/ViSP. Solar Physics 301 (3), 38

Read the paper here.

‍ ‍

Tamburri C., Kazachenko, M., Cauzzi, G., Kowalski, A., French, R., Yadav, R., Evans, C., Notsu, Y., Corchado-Albelo, M., Reardon, K., Tritschler, A. (2025) Unveiling Unprecedented Fine Structure in Coronal Flare Loops with DKIST. The Astrophysical Journal Letters, 990 (1), L3

Read the paper here … and a press release associated with this work here.

‍ ‍

Tamburri, C., Kazachnko, M., Kowalski, A. (2024) The Relationships among Solar Flare Impulsiveness, Energy Release, and Ribbon Development. The Astrophysical Journal, 966 (1), 94

Read the paper here.

‍

Papers as co-author

Kazachenko, M., Albelo-Corchado, M., Tamburri, C., Welsch, B. (2022) Invited Review: Short-term Variability with the Observations from the Helioseismic and Magnetic Imager (HMI) Onboard the Solar Dynamics Observatory (SDO): Insights into Flare Magnetism. Solar Physics 297 (5), 59

Yadav, R., Kazachenko, M., … Tamburri, C., et al. (2025) Multiline Spectropolarimetric Observation of Flare Ribbon Fine Structures with ViSP/DKIST. The Astrophysical Journal 989 (2), 183

Goncharenko, L., Tamburri, C., et al. (2021) A new model for ionospheric total electron content: The impact of solar flux proxies and indices. Journal of Geophysical Research: Space Physics 126 (2)

French, R., Kazachenko, M., … Tamburri, C., et al. (2025) Evolution of Flare Ribbon Bead-like Structures in a Solar Flare. The Astrophysical Journal Letters 995 (2), L54

French, R., Ashfield, W., Tamburri, C., et al. (2025) Dual Origins of Rapid Flare Ribbon Downflows in an X9-class Solar Flare. The Astrophysical Journal 995 (2), 182

Gomez, T., Kowalski, A., Tamburri, C., Kerr, G., White, J. (2026) Enigmatic Line Broadening during Solar Flares: Magnetic Field Broadening? The Astrophysical Journal 1005 (1), 65

Corchado Albelo, M., Kazachenko, M., … Tamburri, C., et al. (2026) Evolution of Spatial Complexity in Flare Ribbon Substructure and Its Relationship to Magnetic Reconnection Dynamics. The Astrophysical Journal 1000 (2), 221

Namekata, K., France, K., … Tamburri, C., et al. (2026) Discovery of multi-temperature coronal mass ejection signatures from a young solar analogue. Nature Astronomy 10 (1), 64-75

Data Analysis and Other Resources

Below, you’ll find resources and code relevant to my work. For questions, please reach out using the form at the “Contact Me” page.Most code is under development and in a varying state of readiness for use - but if you see something interesting and would like to collaborate, please reach out!

Daniel K. Inouye Solar Telescope

DKIST Data Center

GitHub - Processing DKIST data for science use

GitHub - VBI Loop Widths

GitHub - SDO Data and Impulsiveness

Kazachenko, M., Albelo-Corchado, M., Tamburri, C., Welsch, B. (2022) **Invited Review: Short-term Variability with the Observations from the Helioseismic and Magnetic Imager (HMI) Onboard the Solar Dynamics Observatory (SDO): Insights into Flare Magnetism.** Solar Physics 297 (5), 59