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RHESSI re-entering the atmosphere very soon
by Shih, Albert Y. (GSFC-6710) 18 Apr '23

18 Apr '23

To RHESSI fans: RHESSI made 16 years of X-ray and gamma-ray observations before the mission ended in 2018 due to loss of communications. Although the spacecraft has continued to orbit the Earth since then, it is expected to finally re-enter the atmosphere very soon and burn up, possibly as soon as tomorrow! Here is NASA's press release: https://www.nasa.gov/feature/nasa-retired-solar-energy-imager-spacecraft-to… Pascal Saint-Hilaire and Hugh Hudson wrote a RHESSI nugget on the re-entry, including plots of the ground path underneath RHESSI for the next couple of days. With luck, you may be able to catch a glimpse of RHESSI as it burns up, while some parts of the observatory - notably the tungsten grids - may even survive re-entry. https://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI%27s_Re-entry I encourage you all to commemorate and celebrate RHESSI's long mission, which can include analyzing some portion of RHESSI's gigantic data set. I also recommend that you register for the upcoming SPHERE workshop (June 20-23), which builds off of the legacy of RHESSI: https://sphere.boulder.swri.edu/ Thanks! Albert Y. Shih RHESSI Deputy Mission Scientist

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Max Millennium News
by Keiji YOSHIMURA 05 Apr '23

05 Apr '23

MAX MILLENNIUM NEWS 5 April 2023 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 efficiency of electron acceleration during the impulsive phase of a solar flare -- Eduard P. Kontar, A. Gordon Emslie, Galina G. Motorina, Brian R. Dennis Evolution of Solar Eruptive Events: Investigating the Relationships Among Magnetic Reconnection, Flare Energy Release, and Coronal Mass Ejections -- Juliana T. Vievering, Angelos Vourlidas, Chunming Zhu, Jiong Qiu, and Lindsay Glesener 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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4th ASO-S Meeting: tutorial on ASO-S data
by wqgan＠pmo.ac.cn 04 Apr '23

04 Apr '23

Please note: The performance of HXI/ASO-S in orbit looks excellent! Welcome you to register before April 5. Weiqun MEETING: The 4th ASO-S Meeting (Online) -- Tutorials on ASO-S Data The Advanced Space-based Solar Observatory (ASO-S) was launched on October 9, 2022. After six-month of commissioning phase, the ASO-S will release the data to the public. In order to facilitate use and analysis of ASO-S data by the broader community, the 4th ASO-S Meeting will be held online. The meeting consists of two sessions, i.e., China-America Session (April 10-11, 2023, America, EST; April 11-12, 2023, China, CST) and China-Europe Session (April 11-12, 2023, UTC/CST). There will be lectures and hands-on sessions. The lectures include introduction on ASO-S related topics and tutorials on data access and analysis. More information on attending the meeting will be obtained after the registration. Registration date: from March 15 to April 5, 2023. For more detailed information, please visit the meeting website: http://aso-s.pmo.ac.cn/english/science/meeting/meeting-202304.jsp

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Max Millennium News
by Keiji YOSHIMURA 29 Mar '23

29 Mar '23

MAX MILLENNIUM NEWS 29 March 2023 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 Solar Radio Spikes and Type IIIb Striae Manifestations of Sub-second Electron Acceleration Triggered by a Coronal Mass Ejection -- Clarkson, D. L., Kontar, E. P., Vilmer, N., Gordovskyy, M., Chen, X., Chrysaphi, N. Statistical study of Type III bursts and associated HXR emissions -- Tomin James & Nicole Vilmer On orbit performance of the solar flare trigger for the Hinode EUV Imaging Spectrometer -- David H. Brooks, Jeffrey W. Reep, Ignacio Ugarte-Urra, Harry P. Warren Plasma Composition Measurements in an Active Region from Solar Orbiter/SPICE and Hinode/EIS -- Brooks et al. Modulation of cosmic ray anti-protons in the heliosphere: simulations for a solar cycle -- O.P.M. Aslam, M.S. Potgieter, Xi Luo, and M.D. Ngobeni 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 08 Mar '23

08 Mar '23

MAX MILLENNIUM NEWS 8 March 2023 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 Temporal and spatial association between microwaves and type III bursts in the upper corona -- A.T. Altyntsev, H. Reid, N.S. Meshalkina, I.I. Myshyakov, D.A. Zhdanov Prospective Implications of EUV Coronal Plumes for Magnetic-network Genesis of Coronal Heating, Coronal-hole Solar Wind, and Solar-wind Magnetic-field Switchbacks -- Ronald L. Moore, Sanjiv K. Tiwari, Navdeep K. Panesar, & Alphonse C. Sterling 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 01 Mar '23

01 Mar '23

MAX MILLENNIUM NEWS 1 March 2023 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 Solar Energetic Particle Events with Short and Long Onset Times -- Kosuke Kihara, Ayumi Asai, Seiji Yashiro, Nariaki V. Nitta The mechanism of magnetic flux rope rotation during solar eruption -- Zhenjun Zhou,Chaowei Jiang,Xiaoyu Yu,Yuming Wang,Yongqiang Hao,Jun Cui Quantification of the Writhe Number Evolution of Solar Filament Axes -- Zhenjun Zhou, Chaowei Jiang, Hongqiang Song, Yuming Wang, Yongqiang Hao, Jun Cui 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 22 Feb '23

22 Feb '23

MAX MILLENNIUM NEWS 22 February 2023 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 Starspot mapping with adaptive parallel tempering. II. Application to TESS data for M-dwarf flare stars, AU Microscopii, YZ Canis Minoris, and EV Lacertae -- Kai Ikuta, Kosuke Namekata, Yuta Notsu, Hiroyuki Maehara, Soshi Okamoto, Satoshi Honda, Daisaku Nogami, Kazunari Shibata 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 15 Feb '23

15 Feb '23

MAX MILLENNIUM NEWS 15 February 2023 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 frequency ratio and time delay of solar radio emissions with fundamental and harmonic components -- Xingyao Chen, Eduard P. Kontar, Daniel L. Clarkson, Nicolina Chrysaphi 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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New RHESSI Science Nuggets
by Hugh Hudson 11 Feb '23

11 Feb '23

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets No. 440, "Rapid variations of Si IV spectra in a flare observed by IRIS at a sub-second cadence,” by Juraj LÖRINČIK. Transition-region lines in a flare have a Doppler component revealing quasi-periodic pulsations. No. 441, "A slow HOPE with microwave context,” by Hugh HUDSON. A new microwave facility at Chashan Observatory, and a prototypical Hot Onset Precursor Event. No. 442, "A possible coronal magnetic flare precursor,’ by Enrico LANDI. Novel measurements of the coronal magnetic field may help with flare prediction. No. 443, "Hard X-ray Pulsations via Gaussian Decomposition,” by Hannah COLLIER and Laura HAYES. Flare hard X-ray time variations decomposed objectively 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 08 Feb '23

08 Feb '23

MAX MILLENNIUM NEWS 8 February 2023 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 A Superflare on YZ Canis Minoris Observed by Seimei Telescope and TESS: Red Asymmetry of H-alpha Emission Associated with White-Light Emission -- Keiichi Namizaki, Kosuke Namekata, Hiroyuki Maehara, Yuta Notsu, Satoshi Honda, Daisaku Nogami, Kazunari Shibata Prospects of Detecting Non-thermal Protons in Solar Flares via Lyman Line Spectroscopy: Revisiting the Orrall-Zirker Effect -- Graham S. Kerr, Joel C. Allred, Adam F. Kowalski, Ryan O. Milligan, Hugh S. Hudson, Natalia Zambrana Prado, Therese A. Kucera and Jeffrey W. Brosius Rapid Rotation of an Erupting Prominence and the Associated Coronal Mass Ejection on 13 May 2013 -- Yuhao Zhou, Haisheng Ji, Qingmin Zhang 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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