I would like to draw your attention to an AGU Fall Meeting (15-19 Dec 2025) session relevant to high-energy solar physics. While the meeting is still six months away, the abstracts are due 30th July 2025. Hope to see you in New Orleans!
https://agu.confex.com/agu/agu25/prelim.cgi/Session/248818
SH028. Solar Flares in the High-Resolution, High-Cadence Era: Observations, Modelling and Future Prospects
“Solar flares are fundamentally multi-scale phenomena that result from the dramatic and dynamic evolution of the Sun’s atmosphere and magnetic field, from photosphere through corona. Flares are now being observed with unprecedented spatial resolution at very high cadence, and sometimes from multiple viewpoints, providing remarkable new insights into flare energetics and evolution. Recent exciting observations include those from Solar Orbiter’s coordinated major flare campaigns, from IRIS’ high-cadence campaigns, and from ground-based observatories such as DKIST, SST and BBSO. These observations are challenging longstanding views of the flare energy release, transport and dissipation process, and have further revealed the significant sub-structure appearing within flare sources. Equal advancements in flare modeling are required to interpret the observations, and to demonstrate what future observations are required. We seek abstracts covering fine-scale flare structures, rapid temporal evolution, and future prospects for flare-optimized observations. Observational, modeling, instrumentation, and theoretical studies are all applicable and welcomed.”
Best,
Graham Kerr, Andrew Inglis, Gianna Cauzzi and Hannah Collier
--
Dr. Graham S. Kerr,
Research Scientist
PHaSER co-operative scientist
The Catholic University of America
Based at NASA Goddard Space Flight
620 Michigan Ave., NE
Washington DC
20064
O: 301.286.6745
E: kerrg(a)cua.edu

The SolarNuggets continue the earlier series of RHESSI Nuggets, and are now located at
https://heliowiki.smce.nasa.gov/wiki/index.php/SolarNuggets
The entries for June/July 2025 are as follows:
No. 498, “High-Resolution Observations of a C3 class White-Light Flare,” by Xiaoli YAN: Wonderful observations of a feeble flare
No. 499, “Quasiperiodic Pulsations in the Balmer Continuum in an X-class Solar White-light Flare,” by De-Chao SONG et al.: Penetrating observations reveal the pulsating heartbeat of a major flare.
No. 500, “Five Hundred Nuggets,” by Hugh HUDSON: A Nuggets milestone, with links to more Nuggets
No. 501, “The Aulanier Effect: drifting footpoints of CME flux ropes, by Jaroslav DUDÍK, Juray LÖRINČÍK, and Brigitte SCHMIEDER: Declaration of the need for 3D models of flares.
As always, we welcome new items and encourage opinion pieces and news items as well as descriptions of new discoveries. Just email Hugh Hudson with a page of news-oriented text and 2-3 nice figures.
MAX MILLENNIUM NEWS
9 July 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
Time evolution of white-light flare accompanied by probable postflare loops
on M-type dwarf EV Lacertae
-- Shinnosuke Ichihara, Daisaku Nogami, Kosuke Namekata, Hiroyuki Maehara,
Yuta Notsu, Kai Ikuta, Satoshi Honda, Takato Otsu, Kazunari Shibata
Relationship between prominence eruptions and coronal mass ejections
during solar cycle 24
-- Devi, Pooja ; Gopalswamy, Nat ; Yashiro, Seiji ; Akiyama, Sachiko ;
Chandra, Ramesh ; Koleva, Kostadinka
Counter-Streaming Velocities in a Quiescent Filament
-- Karki, Garima ; Schmieder, Brigitte ; Demoulin, Pascal ; Devi, Pooja ;
Chandra, Ramesh ; Joshi, Reetika
How the Solar Dynamic Observatory Revolutionized our Physical Understanding
of the Sun
-- Markus J. Aschwanden
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu
MAX MILLENNIUM NEWS
2 July 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
NICER study of the low-ionized Fe K alpha line on RS Canum Venaticorum type stars
-- Shun Inoue, Teruaki Enoto, Yuta Notsu, Hiroyuki Uchida, Wataru Buz Iwakiri,
Kosuke Namekata, Keith Gendreau
The Relation between Solar Spicules and Magnetohydrodynamic Shocks
-- Sankalp Srivastava, Piyali Chatterjee, Sahel Dey, Robertus Erdelyi
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu
MAX MILLENNIUM NEWS
25 June 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
Non-thermal energy release in the post-impulsive phase of the May 9, 2021 event
-- Minghui Zhang, Nicole Vilmer, Karl-Ludwig Klein, Abdallah Hamini,
David Paipa-Leon, Yin Zhang and Yihua Yan
Thermodynamic Evolution of Flaring Loops with Non-local Thermal Transport
-- S. Belov, T. Parmenter, T. Arber, D. Kolotkov, F. Reale, T. Goffrey
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu
MAX MILLENNIUM NEWS
18 June 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
Two dimensional modelling of the interaction between electromagnetic waves and
plasma-metamaterial composite structures using the particle-in-cell method
-- D. Tsiklauri, I. Morrison
Total Power and Low-energy Cut-off Time Evolution of Solar Flare Accelerated
Electrons Using X-Ray Observations and Warm-Target Model
-- Debesh Bhattacharjee, Eduard P. Kontar, and Yingjie Luo
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu
MAX MILLENNIUM NEWS
4 June 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
Structure and dynamics of erupting solar prominences using the Rolling Hough
Transform: Toward a feature-oriented classification
-- Harry Birch, Stephane Regnier
Spectroscopic Observations of Supra-Arcade Downflows
-- Ryan J. French, Maria D. Kazachenko, Teodora Mihailescu, Katharine K. Reeves
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu
The SolarNuggets continue the earlier series of RHESSI Nuggets, and are now located at
https://heliowiki.smce.nasa.gov/wiki/index.php/SolarNuggets
The entries for May 2025 are as follows:
No. 495, “A Multi-Site Telescope for Multi-Height Synoptic Observations,” by Fallon KONOW: A new network for global observations at multiple wavelengths
No. 496, “Delay of Near-Relativistic Electrons,” by Grant MITCHELL: Parker Solar Probe has solved an old mystery about type III bursts
No. 497, “The Sun’s open-closed flux boundary and the origin of the slow solar wind,” by Chloe WILKINS and David PONTIN: Identifying the sources of the slow solar wind
As always, we welcome new items and encourage opinion pieces and news items as well as descriptions of new discoveries. Just email Hugh Hudson with a page of text and 2-3 nice figures. Somebody in June or maybe July will get to write No. 500!
MAX MILLENNIUM NEWS
28 May 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
Observational signs of limited flare area variation and
peak flare temperatures estimations in main-sequence flaring stars
-- K. Bicz, R. Falewicz, P. Heinzel, P. Pres, D. Mozdzierski, A. Pigulski,
D. Marchev, K. Kotysz, T. Atanasova, G. Yordanova, A. Georgiev
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu
MAX MILLENNIUM NEWS
21 May 2025
CONTENTS
1. E-PRINTS POSTED IN THE PAST WEEK
2. FROM THE EDITOR
=====================================================================
1. E-PRINTS POSTED IN THE PAST WEEK
-----------------------------------
> http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl
Quantifying Chromosphere Response to Flare Energy Release
Using AIA Observations in 1600A and 304A Passbands
-- J. Qiu, R. Fleming
Interaction of a spatially uniform electron beam with a rotational magnetic hole
in a form of a Harris current sheet
-- D. Tsiklauri
Proton heating estimates from near-Earth observations of coronal mass ejections
in solar cycle 24
-- Debesh Bhattacharjee, Prasad Subramanian, Saikat Majumder, Wageesh Mishra
Tracing field lines that are reconnecting, or expanding, or both
-- Qiu, Jiong
Evidence of Continuous Reconnection along a Helmet Streamer Current Sheet
Observed by WISPR on Parker Solar Probe
-- Liewer, P. C., Gallagher, B. M., Stenborg, G., Linton, M. G., Qiu, J.,
Vourlidas, A., Ascione, M. L., Velli, M.
The Role of Magnetic Shear in Reconnection-driven Flare Energy Release
-- Qiu, J., Alaoui, M., Antiochos, S. K., Dahlin, J. T., Swisdak, M.,
Drake, J. F., Robison, A., DeVore, C. R., Uritsky, V. M.
Structure of the Plasma near the Heliospheric Current Sheet as Seen by
WISPR/Parker Solar Probe from inside the Streamer Belt
-- Liewer, P. C., Vourlidas, A., Stenborg, G., Howard, R. A., Qiu, J.,
Penteado, P., Panasenco, O., Braga, C
Observational study of the formation of homologous confined circular-ribbon flares
-- Shuhong Yang, Ruisheng Zheng, Yijun Hou, Yuandeng Shen, Yin Li,
Xiaoshuai Zhu, Ting Li, Guiping Zhou
2. FROM THE EDITOR
------------------
The Max Millennium program exists to enhance all aspects of solar
flare research. If you have news that is of broad interest to that
community, feel free to send your message to the MMScience e-mail list:
http://solar.physics.montana.edu/max_millennium/mmlists.shtml
Address questions to keiji.yoshimura at montana.edu