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Announcing RHESSI Science Nuggets in April 2017
by Hugh Hudson 28 Apr '17

28 Apr '17

No. 297: "Multi-Instrument Solar Flare Observations I: Solar Flare Finder," by Ryan Milligan. Retrospective searches for your favorite flare No. 298: "Multi-Instrument Solar Flare Observations II: A SC24 Retrospective," by Ryan Milligan and Jack Ireland. How the widget did in Cycle 24 No. 299: "High Resolution Temporal and Spatial Structure of a White Light Flare," by Vasyl Yurchyshyn. The biggest solar telescope finds still smaller scales for white-light flare kernels See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets listing the current series, 2008-present, and http://sprg.ssl.berkeley.edu/~tohban/nuggets/for the original series, 2005-2008. We publish these at roughly two-week intervals and welcome contributions, which should be related, at least loosely, to RHESSI science.

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Max Millennium News
by canfield＠mithra.physics.montana.edu 26 Apr '17

26 Apr '17

MAX MILLENNIUM NEWS 26 April 2017 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 Evidence for two-loop interaction from IRIS and SDO observations of penumbral brightenings -- C. E. Alissandrakis, A. Koukras, S. Patsourakos, A. Nindos Coronal cavities: observations and implications for the magnetic environment of prominences -- Sarah E. Gibson A parameter study for modeling MgII h and k emission during solar flares -- F. Rubio da Costa; L. Kleint 2. FROM THE EDITOR ================== The Max Millennium program exists to enhance all aspects of solar activity 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 richard.canfield at montana.edu

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RHESSI 16th / MinXSS 1st Workshop: Deadline April 22!
by Amir Caspi 14 Apr '17

14 Apr '17

Dear solar X-ray colleagues, REMINDER: the deadline to register and submit abstracts is April 22, in just one week! I heartily encourage and invite you to attend this joint meeting. Registration and abstract submission are NOW OPEN for the RHESSI 16th Workshop, co-hosted with the MinXSS 1st Workshop, to be held at the University of Colorado in Boulder, CO, USA from June 19 to 24, 2017. The workshop website, https://rhessi16.boulder.swri.edu, includes registration and abstract information, as well as logistical (travel, hotels, etc.) information. Anyone with an interest in high-energy solar physics is invited to attend. Registration and abstracts are due April 22. The registration fee of $325 includes the entire week of the workshop. There is no separate abstract fee. The Welcome Reception, Banquet dinner, and all morning and afternoon coffee breaks are free to registered attendees. Companion tickets are available. Specially-priced room blocks are available at selected Boulder hotels until May 18. The workshop format will be a blend of plenaries at the beginning and end, with various topical working group sessions in between, covering a range of high-energy solar physics topics including acceleration and transport of electrons and ions, the solar atmospheric response to energy release (including thermal plasma), multi-wavelength observations (EUV, radio, etc.), and pertinent theory. There will also be sessions on next steps in RHESSI imaging; the MinXSS CubeSat status and data access; new results from MinXSS-1 on flare thermal emission and quiescent soft X-ray emission; and a discussion of future instrumentation. The final science program will be determined based on your contributed abstracts, so please submit a presentation and help guide the scientific goals of this event. Please feel free to contact me directly if you have any questions about the workshop. We look forward to seeing you all in Boulder this June! On behalf of the Local Organizing Committee, --- Amir, LOC chair amir(a)boulder.swri.edu +1-303-546-6351

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Max Millennium News
by canfield＠mithra.physics.montana.edu 12 Apr '17

12 Apr '17

MAX MILLENNIUM NEWS 12 April 2017 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 Relationships Between Characteristics of the Line-of-Sight Magnetic Field and Solar Flare Forecasts -- Viacheslav M Sadykov, Alexander G Kosovichev On-disc Observations of Flux Rope Formation Prior to its Eruption -- A. W. James, L. M. Green, E. Palmerio, G. Valori, H. A. S. Reid, D. Baker, D. H. Brooks, L. van Driel-Gesztelyi, E. K. J. Kilpua Comparison of alternative zebra-structure models in solar radio emission -- Chernov G.P., Fomichev V.V., Sych R.A. Gradual Solar Coronal Dimming and Evolution of Coronal Mass Ejection in the Early Phase -- Qiu, Jiong; Cheng, Jianxia Global Energetics of Solar Flares: VI. Refined Energetics of Coronal Mass Ejections -- Markus J. Aschwanden 2. FROM THE EDITOR ================== The Max Millennium program exists to enhance all aspects of solar activity 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 richard.canfield at montana.edu

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Max Millennium News
by canfield＠mithra.physics.montana.edu 05 Apr '17

05 Apr '17

MAX MILLENNIUM NEWS 05 April 2017 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 Long-term Pulses of Dynamic Coupling between Solar Hemispheres -- D.M. Volobuev, N.G. Makarenko Measuring the magnetic field of a trans-equatorial loop system using coronal seismology -- David M. Long, Gherardo Valori, David Perez-Suarez, Richard J. Morton, Alberto Marcos Vásquez Triggering Process of the X1.0 Three-ribbon Flare in the Great Active Region NOAA 12192 -- Y. Bamba, S. Inoue, K. Kusano, and D. Shiota Turbulent kinetic energy in the energy balance of a solar flare -- Kontar, E. P.; Perez, J. E.; Harra, L. K.; Kuznetsov, A. A.; Emslie, A. G.; Jeffrey, N. L. S.; Bian, N. H.; Dennis, B. R. Magnetic Helicity Estimations in Models and Observations of the Solar Magnetic Field. Part III: Twist Number Method -- Y. Guo, E. Pariat , G. Valori , S. Anfinogentov , F. Chen , M. Georgoulis , Y. Liu , K. Moraitis , J. K. Thalmann , S. Yang Relative magnetic helicity as a diagnostic of solar eruptivity -- E. Pariat, J. E. Leake, G. Valori, M. G. Linton, F. P. Zuccarello, K. Dalmasse Multiwavelength Observations of a Flux Rope Formation by Series of Magnetic Reconnection in the Chromosphere -- Pankaj Kumar, Vasyl Yurchyshyn, Kyung-Suk Cho, Haimin Wang 2. FROM THE EDITOR ================== The Max Millennium program exists to enhance all aspects of solar activity 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 richard.canfield at montana.edu

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RHESSI 16th / MinXSS 1st Workshop: Registration open!
by Amir Caspi 31 Mar '17

31 Mar '17

Dear solar X-ray colleagues, Registration is NOW OPEN for the RHESSI 16th Workshop, co-hosted with the MinXSS 1st Workshop! I invite and encourage you to attend this joint meeting. The workshop will be held at the University of Colorado in Boulder, CO, USA from June 19 to 24, 2017. The website is at https://rhessi16.boulder.swri.edu, and includes registration and abstract information, as well as logistical (travel, hotels, etc.) information. Registration and abstracts are due April 22. The registration fee of $325 includes the entire week of the workshop. The Welcome Reception, Banquet dinner, and all morning and afternoon coffee breaks are free to registered attendees. Companion tickets are available. Specially-priced room blocks are available at selected hotels until May 18. As with prior RHESSI workshops, the format will be a blend of plenaries at the beginning and end, with various topical working group sessions in between, covering a range of high-energy solar physics topics including acceleration and transport of electrons and ions, the solar atmospheric response to energy release (including thermal plasma), multi-wavelength observations (EUV, radio, etc.), and pertinent theory. There will also be sessions on next steps in RHESSI imaging; the MinXSS CubeSat status and data access; new results from MinXSS-1 on flare thermal emission and quiescent soft X-ray emission; and a discussion of future instrumentation. The final science program will be determined based on your contributed abstracts, so please submit a presentation and help guide the scientific goals of this event. Please feel free to contact me directly if you have any questions about the workshop. I look forward to seeing you all in Boulder in June! On behalf of the Local Organizing Committee, --- Amir, LOC chair amir(a)boulder.swri.edu +1-303-546-6351

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Max Millennium News
by canfield＠mithra.physics.montana.edu 29 Mar '17

29 Mar '17

MAX MILLENNIUM NEWS 29 March 2017 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 High-resolution observations of flare precursors in the low solar atmosphere -- Haimin Wang, Chang Liu, Kwangsu Ahn, Yan Xu, Ju Jing, Na Deng, Nengyi Huang, Rui Liu, Kanya Kusano, Gregory D. Fleishman, Dale E. Gary and Wenda Cao Solar Energetic Particle transport near a Heliospheric Current Sheet -- Battarbee, M., Dalla, S., and Marsh, M.S. Investigating the Magnetic Imprints of Major Solar Eruptions with SDO/HMI High-Cadence Vector Magnetograms -- Xudong Sun, J. Todd Hoeksema, Yang Liu, Maria Kazachenko, Ruizhu Chen Coronal loop density profile estimated by forward modelling of EUV intensity -- D. J. Pascoe, C. R. Goddard, S. Anfinogentov, and V. M. Nakariakov The magnetic connectivity of coronal shocks to the visible solar surface during long-duration gamma-ray events -- Illya Plotnikov, Alexis P. Rouillard, Gerald H. Share Dissipative instability in a partially ionised prominence slab -- I. Ballai, B. Pinter, R. Oliver and M. Alexandrou Significance testing for quasi-periodic pulsations in solar and stellar flares -- C. E. Pugh, A.-M. Broomhall, V. M. Nakariakov 2. FROM THE EDITOR ================== The Max Millennium program exists to enhance all aspects of solar activity 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 richard.canfield at montana.edu

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RHESSI Nuggets in March 2017
by Hugh Hudson 27 Mar '17

27 Mar '17

No. 296, “Suppression of Hydrogen Emission in an X-class White-light Solar Flare,” by Ondřej Procházka and Ryan Milligan. The absence of hydrogen signatures suggests an event buried in the deep solar atmosphere. No. 295, “Radio Emissions from Double RHESSI TGFs”, by Andrey Mezentsev and Thomas Gjesteland: Lightning helps with microsecond timing calibrations, and is really interesting as a phenomenon of high-energy astrophysics. No. 294, “Edward Chupp” See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets listing the current series, 2008-present, and http://sprg.ssl.berkeley.edu/~tohban/nuggets/ for the original series, 2005-2008. We publish these at roughly two-week intervals and welcome contributions, which should be related, at least loosely, to RHESSI science.

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Max Millennium News
by canfield＠mithra.physics.montana.edu 22 Mar '17

22 Mar '17

MAX MILLENNIUM NEWS 22 March 2017 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 High Resolution Observations of a White Light Flare with NST -- Yurchyshyn, V., Kumar, P., Abramenko, V., Xu, Y., Goode, P., Cho, K.S., Lim, E.K 2017-03-21 Flare forecasting at the Met Office Space Weather Operations Centre -- Sophie A. Murray, Suzy Bingham, Michael Sharpe, David Jackson 2. FROM THE EDITOR ================== The Max Millennium program exists to enhance all aspects of solar activity 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 richard.canfield at montana.edu

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Max Millennium News
by canfield＠mithra.physics.montana.edu 15 Mar '17

15 Mar '17

MAX MILLENNIUM NEWS 15 March 2017 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 On the Effectiveness of Multi-Instrument Solar Flare Observations During Solar Cycle 24 -- Ryan Milligan, Jack Ireland The Grad-Shafranov Reconstruction of Toroidal Magnetic Flux Ropes: Method Development and Benchmark Studies -- Qiang Hu Long-Period Intensity Pulsations in Coronal Loops Explained by Thermal Non-Equilibrium Cycles -- Clara Froment, Frederic Auchere, Guillaume Aulanier, Zoran Mikic, Karine Bocchialini, Eric Buchlin, Jacques Solomon 2. FROM THE EDITOR ================== The Max Millennium program exists to enhance all aspects of solar activity 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 richard.canfield at montana.edu

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