MMScience March 2021

mmscience@solar.physics.montana.edu

3 participants
9 discussions

Max Millennium News
by Keiji YOSHIMURA 31 Mar '21

31 Mar '21

MAX MILLENNIUM NEWS 31 March 2021 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 Separating aa-index into Solar and Hale Cycle Related Components Using Principal Component Analysis -- Jouni J. Takalo Inward Propagating Plasma Parcels in the Solar Corona: Models with Aerodynamic Drag, Ablation, and Snowplow Accretion -- Steven R. Cranmer, Craig E. DeForest, and Sarah E. Gibson Energetics and 3-D Structure of Elementary Events in Solar Coronal Heating -- G. Einaudi, R.B. Dahlburg, I. Ugarte-Urra, J.W. Reep, A.F. Rappazzo, M. Velli 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

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RHESSI Science Nuggets in March 2021
by Hugh Hudson 30 Mar '21

30 Mar '21

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets No. 402, “FLUKA as a tool for interpreting flare gamma-rays,” by Alec MacKinnon. The nuclear phyics of solar flares captured in a detailed model. No. 403, “The Neupert Effect revisited,” by Jiong Qiu. Two time scales for heating individual flare strands. No. 404, “The superflare SOL2017-09-06,” by Guillermo Giménez de Castro. Glimpsing the “missing decades” of the flare emission spectrum. No. 405, “Tracing the sources of gradual solar energetic particle events,” by David Brooks and Stephanie Yardley. Chemical abundances in SEPs suggest an origin in flare-related moss regions. No. 25, “Return currents and soft-hard-sift spectral evolution,” by Valentna Zharkova and Mykola Gordovskyy. A classic Nugget revisited. We welcome contributions to the RHESSI Nuggets, and the topics may wander some distance away from specifically RHESSI results if they are generally interesting. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets for these and others. Comments about specific flares can often be found by searching for their SOLyyyy-mm-dd identifier from this home page.

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Max Millennium News
by Keiji YOSHIMURA 24 Mar '21

24 Mar '21

MAX MILLENNIUM NEWS 24 March 2021 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 Stellar Superflares Observed Simultaneously with Kepler and XMM-Newton -- Kuznetsov, A.A., Kolotkov, D.Y. Medium-term predictions of F10.7 and F30 cm solar radio flux with the adaptive Kalman filter -- Elena Petrova, Tatiana Podladchikova, Astrid M. Veronig, Stijn Lemmens, Benjamin Bastida Virgili, Tim Flohrer Resonances in a Coronal Loop Driven by Torsional Alfven Waves Propagating from the Photosphere -- R. Soler, J. Terradas, R. Oliver, J. L. Ballester 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

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Max Millennium News
by Keiji YOSHIMURA 17 Mar '21

17 Mar '21

MAX MILLENNIUM NEWS 17 March 2021 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 Effects of external flow on resonant absorption of coronal loop kink oscillations driven by an external fast wave: Selective excitation problem -- Dae Jung Yu Emerging Dimming as Coronal Heating Episodes -- Anna V. Payne, Xudong Sun Proxy-Based Prediction of Solar Extreme Ultraviolet Emission using Deep Learning -- Anthony L. Pineci, Peter Sadowski, Eric Gaidos, Xudong Sun The source of the major solar energetic particle events from super active region 11944 -- David H. Brooks, Stephanie L. Yardley Critical decay index for eruptions of 'short' filaments -- Boris Filippov Thermal Trigger for Solar Flares I: Fragmentation of the Preflare Current Layer -- Leonid Ledentsov 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

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Max Millennium News
by Keiji YOSHIMURA 10 Mar '21

10 Mar '21

MAX MILLENNIUM NEWS 10 March 2021 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 The Evolution of Plasma Composition During a Solar Flare -- Andy S.H. To, David M. Long, Deborah Baker, David H. Brooks, Lidia van Driel-Gesztelyi, J. Martin Laming, Gherardo Valori Large-amplitude prominence oscillations following the impact by a coronal jet -- Manuel Luna & Fernando Moreno-Insertis Mass of prominences experiencing failed eruptions -- B. Filippov Relative field line helicity of a large eruptive solar active region -- K. Moraitis, S. Patsourakos, A. Nindos The effect of a dynamo-generated field on the Parker wind -- Jakab, P., Brandenburg, A. 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

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Online workshop "Sub-second structures in low frequency solar radio observations", March 30-April 1st, 2021
by Sophie Musset 09 Mar '21

09 Mar '21

The workshop focusing on sub-second solar radio burst structures at low frequencies that was previously scheduled at the University of Glasgow, UK, from 8-9 April 2020, and cancelled due to the pandemic, will be held online from 30 March to 1st April 2021. More information on the structure and requirements for this workshop, as well as the registration form, can be accessed via the workshop’s dedicated website: http://www.astro.gla.ac.uk/~sophie/radioworkshop During the workshop, certain key topics will be introduced and fully-processed LOFAR data will be provided to attendees to analyse during hands-on sessions. The aim is to focus on previously-unpublished, intriguing fine structures observed in LOFAR spectra. To register your interest, please fill in the registration form by 22 March 2021. For any questions, please contact Sophie Musset at sophie.musset(a)glasgow.ac.uk<mailto:sophie.musset@glasgow.ac.uk> -- Sophie Musset Research Assistant School of Physics and Astronomy University of Glasgow

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RHESSI Nuggets in February 2021
by Hugh Hudson 03 Mar '21

03 Mar '21

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets No. 400, “A Solar FRB”, by Dale Gary and Hugh Hudson. This may be a new frontier in the solar time domain No. 401, “A Collective Study of 11 NuSTAR Microfares", by Jessie Duncan and Lindsay Glesener. Swarms of NuSTAR microflares give a statistical view We welcome contributions to the RHESSI Nuggets, and the topics may wander some distance away from specifically RHESSI results if they are generally interesting. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets for these and others. Comments about specific flares can often be found by searching for their SOLyyyy-mm-dd identifier from this home page.

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Max Millennium News
by Keiji YOSHIMURA 03 Mar '21

03 Mar '21

MAX MILLENNIUM NEWS 3 March 2021 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 Magnetic Helicity Flux across Solar Active Region Photospheres: II. Association of Hemispheric Sign Preference with Flaring Activity during Solar Cycle 24 -- Sung-Hong Park, K. D. Leka, Kanya Kusano NuSTAR Observation of Energy Release in 11 Solar Microflares -- Jessie Duncan, Lindsay Glesener, Brian W. Grefenstette, Juliana Vievering, Iain G. Hannah, David M. Smith, Sam Krucker, Stephen M. White, and Hugh Hudson The Ly-alpha Emission in Solar Flares. I. A Statistical Study on Its Relationship with the 1-8 A Soft X-Ray Emission -- Jing, Zhichen; Pan, Wuqi; Yang, Yukun; Song, Dechao; Tian, Jun; Li, Y.; Cheng, X.; Hong, Jie; Ding, M. D. Radiative hydrodynamic simulations of the spectral characteristics of solar white-light flares -- Yang, Yu-Tong; Hong, Jie; Li, Ying; Ding, Ming-De; Li, Hui 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

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Fwd: SolFER Spring Meeting Announcement
by Keiji YOSHIMURA 01 Mar '21

01 Mar '21

Dear All, I'm forwarding the announcement of the SolFER Spring 2021 Meeting. More details can be found at: https://solfer.umd.edu/ Best regards, Keiji --------------------------------------------------------------------- SolFER Spring 2021 Meeting Announcement The SolFER DRIVE Science Center is announcing a web-based science meeting on Solar Flare Energy Release to take place on May 24-26, 2021. The meeting is open to all scientists working on the topic. The meeting will include invited talks, submitted oral talks as well as poster presentations and will provide substantial time for informal scientific discussion. We encourage paper submissions that are based on remote and in situ observational data as well as those based on theory and modeling. Extensive use will be made of Gather meeting software to facilitate interactive poster sessions as well as informal discussion between meeting participants. The meeting will be organized around the key scientific topics listed as follows: * What mechanisms facilitate the fast release of magnetic energy in impulsive solar flares? * What controls the onset of fast flare energy release? * Why and how do flares transfer a large fraction of the released magnetic energy into energetic electrons? * What mechanism drives the energization of ions and the measured abundance enhancements of some species during impulsive flares? * What mechanisms control energetic particle transport in flares? * How does reconnection heat plasma in flares and the small events (nanoflares) that may be responsible for heating the corona? More information on these scientific topics can be found on the SolFER website (solfer.umd.edu). Information on abstract submission and more details on the daily timeline of the meeting are being developed for posting on the website. The SolFER science team also encourages community participation in the ongoing science discussion related to flare energy release. A detailed calendar of working group meetings as well as the monthly webinar can be found on the SolFER website (solfer.umd.edu). ---------------------------------------------------------------------

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MMScience March 2021