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RHESSI to be Decommissioned
by Dennis, Brian R. (GSFC-6710) 10 Aug '18

10 Aug '18

After more than 16 years of successful operations, the RHESSI spacecraft is now planned to be decommissioned on October 1 of this year. The on-board receiver has been slowly degrading since 2017, and commanding from the ground has become increasingly difficult to the point where we have not had a successful command since mid-July. We will continue to try to establish contact, but success is very unlikely. The spacecraft has no further scheduled transmissions and is programmed to automatically decommission itself on October 1. Because of the communication difficulty, the detectors have not been turned back on following the sixth anneal, which started on April 12. Observations ended on April 11 at 01:50 UT and the last flare in the RHESSI catalog was a B5 on March 3. We have already started implementing the Mission Archive Plan as described in the latest RHESSI Senior Review Proposal (http://hesperia.gsfc.nasa.gov/senior_review/2017/senior_review_proposal_201…). For the next few years, RHESSI data products will continue to be accessible on the usual servers. In the future, the archive will be available through the Solar Data Analysis Center (SDAC). Sam Krucker, PI krucker(a)ssl.berkeley.edu<mailto:krucker@ssl.berkeley.edu> Brian Dennis, Mission Scientist brian.r.dennis(a)nasa.gov<mailto:brian.r.dennis@nasa.gov> Albert Shih, Deputy Mission Scientist albert.y.shih(a)nasa.gov<mailto:albert.y.shih@nasa.gov>

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Max Millennium Program Status
by richard.canfield＠montana.edu 10 Aug '18

10 Aug '18

It appears inevitable that the RHESSI spacecraft will be decommissioned on October 1 of this year. The Max Millennium program is supported by the RHESSI PI team, with NASA funding for RHESSI operations, which will end on this date. In the near term, the Max Millennium team will continue to carry out all current functions: the Message of the Day, the Solar Physics E-Print Archive, Max Millennium News, the MMscience, MMmotd, and RHESSI_Data_Analysis mailing lists and archives, and all other functions of the Max Millennium website at Montana State University: <http://solar.physics.montana.edu/max_millennium/>. The Max Millennium program, and the solar activity observing community as a whole, has long benefitted from the generosity of the volunteer Max Millennium Chief Observers. All current MM_COs have expressed their desire to continue in that role: Shaun Bloomfield (Northumbria University), Ying Li (Purple Mountain Observatory and Montana State University), Bill Marquette (Hello Research), Aoife McCloskey (Trinity College Dublin), and Ryan Milligan (University of Glasgow). The last two decades have resoundingly demonstrated the value of multi-mission and multi-observatory coordination of solar activity and space weather observations. Powerful new facilities have come on line recently, and others will come in the next few years. Many of them have high-resolution and limited field of view, which motivate coordinated observation. We in the Max Millennium program will solicit support for continuing such coordination in the future.

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Max MillenniumNews
by richard.canfield＠montana.edu 08 Aug '18

08 Aug '18

MAX MILLENNIUM NEWS 8 August 2018 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 Lost and found sunquake in the 6 September 2011 flare caused by beam electrons -- Connor Macrae, Sergei Zharkov, Valentina Zharkova, Malcolm Druett, Sarah Matthews, and Tomoko Kawate Nonkinematic solar dynamo models with double-cell meridional circulation -- V.V. Pipin Solar Kinetic Energy and Cross Helicity Spectra -- Hongqi Zhang, Axel Brandenburg 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 richard.canfield＠montana.edu 01 Aug '18

01 Aug '18

MAX MILLENNIUM NEWS 1 August 2018 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 Collective Study of Polar Crown Filaments in the Past Four Solar Cycles -- Yan Xu, Werner Potzi, Hewei Zhang, Nengyi Huang, Ju Jing, and Haimin Wang Highly Ionized Calcium and Argon X-ray Spectra from a Large Solar Flare -- K. J. H. Phillips, J. Sylwester, B. Sylwester, M. Kowalinski, M. Siarkowski, W. Trzebinski, S. Plocieniak, and Z. Kordylewski Detecting the solar new magnetic flux regions on the base of vector magnetograms -- A.A.GolovkoI, I.I.Salakhutdinova 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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REMINDER: 2018 AGU Fall Meeting Session SH008 -- High-Energy Solar Investigations Through Next-Generation Spectroscopy: X-rays, Gamma-rays, and EUV -- Call for Abstracts
by Amir Caspi 31 Jul '18

31 Jul '18

Reminder: please consider submitting to session SH008 for the AGU Fall Meeting; details and link are below. Abstracts are due TOMORROW at 23:59 EDT! Hope to see you there! --- Amir On 07/25/2018, 6:13 PM, "Amir Caspi" <amir(a)boulder.swri.edu> wrote: > Dear colleagues, > > You are cordially invited to submit abstracts to Session SH008 ³High-Energy > Solar Investigations Through Next-Generation Spectroscopy: X-rays, Gamma-rays, > and EUV,² for the 2018 AGU Fall Meeting, to be held in Washington, DC, 10 14 > December 2018. > > Spectrally resolved measurements in X-rays, gamma-rays, and EUV are critical > for advancing our understanding of energetic phenomena on the Sun, during both > flares and quiescence. To that end, this session invites presentations > covering new instrumentation, enabling technology, missions, and mission > concepts for next-generation X-ray, gamma-ray, and EUV solar spectroscopy, > including spatially-resolved measurements, and the science that would be > enabled by such new observations. > > The full session description and abstract submission are here: > https://agu.confex.com/agu/fm18/prelim.cgi/Session/52561 > > The deadline to submit an abstract is Wednesday, 1 Aug 2018, at 23:59 EDT. > > We welcome your submissions to this exciting session! > > --- Amir Caspi, Lindsay Glesener, and Amy Winebarger >

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2018 AGU Fall Meeting Session SH008 -- High-Energy Solar Investigations Through Next-Generation Spectroscopy: X-rays, Gamma-rays, and EUV -- Call for Abstracts
by Amir Caspi 25 Jul '18

25 Jul '18

Dear colleagues, You are cordially invited to submit abstracts to Session SH008 ³High-Energy Solar Investigations Through Next-Generation Spectroscopy: X-rays, Gamma-rays, and EUV,² for the 2018 AGU Fall Meeting, to be held in Washington, DC, 10 14 December 2018. Spectrally resolved measurements in X-rays, gamma-rays, and EUV are critical for advancing our understanding of energetic phenomena on the Sun, during both flares and quiescence. To that end, this session invites presentations covering new instrumentation, enabling technology, missions, and mission concepts for next-generation X-ray, gamma-ray, and EUV solar spectroscopy, including spatially-resolved measurements, and the science that would be enabled by such new observations. The full session description and abstract submission are here: https://agu.confex.com/agu/fm18/prelim.cgi/Session/52561 The deadline to submit an abstract is Wednesday, 1 Aug 2018, at 23:59 EDT. We welcome your submissions to this exciting session! --- Amir Caspi, Lindsay Glesener, and Amy Winebarger

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Max Millennium News
by richard.canfield＠montana.edu 25 Jul '18

25 Jul '18

MAX MILLENNIUM NEWS 25 July 2018 CONTENTS 1. E-PRINTS POSTED IN THE PAST WEEK 2. FROM THE EDITOR ===================================================================== 1. E-PRINTS POSTED IN THE PAST WEEK =================================== A Truly Global EUV Wave From the SOL2017-09-10 X8.2 Solar Flare-CME Eruption -- Wei Liu, Meng Jin, Cooper Downs, Leon Ofman, Mark Cheung, and Nariaki Nitta ALTERNATIVE ZEBRA-STRUCTURE MODELS IN SOLAR RADIO EMISSION -- G.P. Chernov Photospheric Shear Flows in Solar Active Regions and Their Relation to Flare Occurrence -- S.-H. Park, J. A. Guerra, P. T. Gallagher, M. K. Georgoulis, D. S. Bloomfield 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 richard.canfield＠montana.edu 18 Jul '18

18 Jul '18

MAX MILLENNIUM NEWS 18 July 2018 CONTENTS 1. E-PRINTS POSTED IN THE PAST WEEK 2. FROM THE EDITOR ===================================================================== 1. E-PRINTS POSTED IN THE PAST WEEK =================================== Linear Polarization Features in the Quiet-Sun Photosphere: Structure and Dynamics -- S. Kianfar, S. Jafarzadeh, M. T. Mirtorabi, T. L. Riethmuller Solar Microflares Observed by SphinX and RHESSI -- Tomasz Mrozek, Szymon Gburek, Marek Siarkowski, Barbara Sylwester, Janusz Sylwester, Anna Kepa, Magdalena Gryciuk Two Kinds of Dynamic Behavior in a Quiescent Prominence Observed by the NVST -- Dong Li, Yuandeng Shen, Zongjun Ning, Qingmin Zhang, Tuanhui Zhou 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 richard.canfield＠montana.edu 11 Jul '18

11 Jul '18

MAX MILLENNIUM NEWS 11 July 2018 CONTENTS 1. E-PRINTS POSTED IN THE PAST WEEK 2. FROM THE EDITOR ===================================================================== 1. E-PRINTS POSTED IN THE PAST WEEK =================================== Resistively-limited current sheet implosions in planar anti-parallel (1D) and null-point containing (2D) magnetic field geometries -- JO Thurgood, DI Pontin, JA McLaughlin Is It Small-scale Weak Magnetic Activity That Effectively Heats the Upper Solar Atmosphere? -- K.J. Li, J.C. Xu, W. Feng Self-Similar Approach for Rotating Magnetohydrodynamic Solar and Astrophysical Structures -- Manuel Luna, Eric Priest and Fernando Moreno-Insertis Spectroscopic and imaging observations of small-scale reconnection events -- Dong Li, Leping Li, Zongjun Ning A Study of Magnetic Field Characteristics of Flaring Active Region Based on Nonlinear Force-free Field Extrapolation -- Johan Muhamad, Kanya Kusano, Satoshi Inoue, Yumi Bamba 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 richard.canfield＠montana.edu 04 Jul '18

04 Jul '18

MAX MILLENNIUM NEWS 04 July 2018 CONTENTS 1. E-PRINTS POSTED IN THE PAST WEEK 2. FROM THE EDITOR ===================================================================== 1. E-PRINTS POSTED IN THE PAST WEEK =================================== A Study of a Compound Solar Eruption with Two Consecutive Erupting Magnetic Structures -- Suman K. Dhakal, Georgios Chintzoglou, and Jie Zhang Non-potential magnetic helicity ratios at the onset of eruptions -- Francesco P. Zuccarello, Etienne Pariat, Gherardo Valori, Luis Linan Solar Cycle Observations of the Neon Abundance in the Sun-as-a-star -- David H. Brooks, Deborah Baker, Lidia van Driel-Gesztelyi, and Harry P. Warren Subresolution Activity in Solar and Stellar Coronae from Magnetic Field Line Tangling -- A. F. Rappazzo, R. B. Dahlburg, G. Einaudi, M. Velli 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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