MMScience June 2014

mmscience@solar.physics.montana.edu

4 participants
8 discussions

Announcing a new RHESSI Science Nugget
by hhudson＠ssl.berkeley.edu 30 Jun '14

30 Jun '14

No. 228, "Mysteries of Flare/CME Initiation," by Shaun Bloomfield and Hugh Hudson; nearby major flares can occur in pairs - but how? See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets . Older Nuggets are also available at http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets (the current series, 2008-present), and at http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (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 Jun '14

26 Jun '14

MAX MILLENNIUM NEWS 26 June 2014 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 Radiated Energy Budget Of Chromospheric Plasma In A Major Solar Flare Deduced From Multi-Wavelength Observations -- Ryan O. Milligan, Graham S. Kerr, Brian R. Dennis, Hugh S. Hudson, Lyndsay Fletcher, Joel C. Allred, Phillip C. Chamberlin, Jack Ireland, Mihalis Mathioudakis, & Francis P. Kennan Reciprocatory magnetic reconnection in a coronal bright point -- Q. M. Zhang, P. F. Chen, M. D. Ding, and H. S. Ji PRE-FLARE DYNAMICS OF SUNSPOT GROUPS -- M.B.Korsis,T.Baranyi,A.Ludmany How are Forbush decreases related with IP magnetic field enhancements? -- Arunbabu K. P., P. Subramanian, Sunil Gupta, H. M. Antia Bridging EUV and white-light observations to inspect the initiation phase of a "two-stage" solar eruptive event Byrne, -- J. P., Morgan, H., Seaton, D. B., Bain, H. M., Habbal, S. R. Observations of a high-quality quasi-periodic rapidly-propagating wave train using SDO/AIA -- G. Nistico, D. J. Pascoe, 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 canfield at physics.montana.edu

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RHESSI's upcoming fourth anneal
by Shih, Albert Y. (GSFC-6710) 23 Jun '14

23 Jun '14

To RHESSI collaborators: RHESSI has been successfully operating in space for over 12 years, and it is once again time to rejuvenate the detectors through an "anneal" procedure. RHESSI's germanium detectors will be heated up from their operating temperature of ~115 K to ~100 deg C (373 K), held at that temperature for ten days, and then cooled back down. The detectors degrade steadily over time due to radiation damage from charged particles, and heating up the germanium restores lost sensitivity and resolution. These detectors have been previously annealed three times, most recently in 2012. We plan to start the anneal on June 26, and the entire procedure is estimated to take six weeks. During this time period, RHESSI will be unable to make X-ray or gamma-ray observations. If you have any questions about this upcoming anneal, please feel free to contact me. Albert Shih RHESSI Deputy Mission Scientist ————— Albert Y. Shih Solar Physics Laboratory, Code 671 NASA Goddard Space Flight Center Greenbelt, MD 20771 Office: 301-286-1843

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New UKSP Nugget: 48. Possible Evidence for Alfvenic Turbulence in Coronal Loops
by Iain Hannah 20 Jun '14

20 Jun '14

48. Possible Evidence for Alfvenic Turbulence in Coronal Loops by Ineke De Moortel (University of St Andrews) High-frequency waves in loops contain more energy than expected – are we seeing the onset of Alfvenic turbulence? http://www.uksolphys.org/?p=8405 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ UKSP Nuggets are published on a monthly basis highlighting solar physics research led from the UK. http://www.uksolphys.org/uksp-nuggets Iain Hannah and Lyndsay Fletcher ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dr. Iain G. Hannah Royal Society Research Fellow, Astronomy & Astrophysics Group, SUPA School of Physics & Astronomy, Kelvin Building, University of Glasgow, Glasgow, UK, G12 8QQ Web: http://www.astro.gla.ac.uk/~iain/ Eml: iain.hannah(a)glasgow.ac.uk<mailto:iain.hannah@glasgow.ac.uk> Tel: +44 (0)141 330 6427 Fax: +44 (0)141 330 5183 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Max Millennium News
by canfield＠mithra.physics.montana.edu 18 Jun '14

18 Jun '14

MAX MILLENNIUM NEWS 18 June 2014 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 Relationship Between a Hot-channel-like Solar Magnetic Flux Rope and its embedded Prominence -- X. Cheng, M. D. Ding, J. Zhang, A. K. Srivastava, Y. Guo, P. F. Chen, J. Q. Sun Octupolar out-of-plane magnetic field structure generation during collisionless magnetic reconnection in a stressed X-point collapse -- J. Graf von der Pahlen, D. Tsiklauri Solar Meridional Flow in the Shallow Interior during the Rising Phase of Cycle 24 -- Junwei Zhao, A. G. Kosovichev, R. S. Bogart Coronal magnetic reconnection driven by CME expansion - The 2011 June 7 event -- L. van Driel-Gesztelyi, D. Baker, T. Toeroek, E. Pariat, L.M. Green, D.R. Williams, J. Carlyle, G. Valori, P. Demoulin, B. Kliem, D. Long, S.A. Matthews, J.-M. Malherbe Energetic electron propagation in the decay phase of non-thermal flare emission -- Jing Huang, Yihua Yan, and Yuri T. Tsap 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 canfield at physics.montana.edu

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Max Millennium News
by canfield＠mithra.physics.montana.edu 11 Jun '14

11 Jun '14

MAX MILLENNIUM NEWS 11 June 2014 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 Exact Analytical Solutions of Continuity Equation for Electron Beams Precipitating in Coulomb Collisions -- Dobranskis R.R. and Zharkova V.V. Metric radio bursts and fine structures observed on 17 January, 2005 -- Bouratzis, C.; Preka-Papadema, P.; Moussas, X.; Alissandrakis, C.; Hillaris, A. Space storm measurements of the July 2005 solar extreme events from the low corona to the Earth -- Caroubalos, C.; Preka-Papadema, P.; Mavromichalaki, H.; Moussas, X.; Papaioannou, A.; Mitsakou, E.; Hillaris, A. The improved ARTEMIS IV multichannel solar radio spectrograph of the University of Athens - Kontogeorgos, A.; Tsitsipis, P.; Caroubalos, C.; Moussas, X.; Preka-Papadema, P.; Hilaris, A.; Petoussis, V.; Bouratzis, C.; Bougeret, J.-L.; Alissandrakis, C. E.; Dumas, G. Solar flares with and without SOHO/LASCO coronal mass ejections and type II shocks -- Hillaris, A.; Petousis, V.; Mitsakou, E.; Vassiliou, C.; Moussas, X.; Polygiannakis, J.; Preka-Papadema, P.; Caroubalos, C.; Alissandrakis, C.; Tsitsipis, P.; Kontogeorgos, A.; Bougeret, J.-L.; Dumas, G. Type II Radio Emission and Solar Particle Observations -- Kuznetsov, S. N.; Kurt, V. G.; Yushkov, B. Yu.; Myagkova, I. N.; Kudela, K.; Belov, A. V.; Caroubalos, C.; Hilaris, A.; Mavromichalaki, H.; Moussas, X.; Preka-Papadema, P. ARTEMIS IV Radio Observations of the 14 July 2000 Large Solar Event -- Caroubalos, C.; Alissandrakis, C. E.; Hillaris, A.; Nindos, A.; Tsitsipis, P.; Moussas, X.; Bougeret, J.-L.; Bouratzis, K.; Dumas, G.; Kanellakis, G.; Kontogeorgos, A.; Maroulis, D.; Patavalis, N.; Perche, C.; Polygiannakis, J.; Preka-Papadema, P. Radio Observations of the 20 January 2005 X-class Flare -- Bouratzis, C.; Preka-Papadema, P.; Hillaris, A.; Tsitsipis, P.; Kontogeorgos, A.; Kurt, V. G.; Moussas, X.. On the relationship of shock waves to flares and coronal mass ejections -- Nindos, A.; Alissandrakis, C. E.; Hillaris, A.; Preka-Papadema, P. The 17 January 2005 Complex Solar Radio Event Associated with Interacting Fast Coronal Mass Ejections -- Hillaris, A.; Malandraki, O.; Klein, K.-L.; Preka-Papadema, P.; Moussas, X.; Bouratzis, C.; Mitsakou, E.; Tsitsipis, P.; Kontogeorgos, A. The relativistic solar particle event of 2005 January 20: prompt and delayed particle acceleration -- Klein, K.-L.; Masson, S.; Bouratzis, C.; Grechnev, V.; Hillaris, A.; Preka-Papadema, P Fine Structure of Metric Type-IV Radio Bursts Observed with the ARTEMIS-IV Radio Spectrograph: Association with Flares and Coronal Mass Ejections -- Bouratzis, C.; Hillaris, A.; Alissandrakis, C. E.; Preka-Papadema, P.; Moussas, X.; Caroubalos, C.; Tsitsipis, P.; Kontogeorgos, A. CME Expansion as the Driver of Metric Type II Shock Emission as Revealed by Self-consistent Analysis of High-Cadence EUV Images and Radio Spectrograms -- Kouloumvakos, A.; Patsourakos, S.; Hillaris, A.; Vourlidas, A.; Preka-Papadema, P.; Moussas, X.; Caroubalos, C.; Tsitsipis, P.; Kontogeorgos, A. Assessing the impact of space weather on the electric power grid based on insurance claims for industrial electrical equipment -- C.J. Schrijver, R. Dobbins, W. Murtagh, S.M. Petrinec Space weather from explosions on the Sun: how bad could it be? -- C.J. Schrijver, J. Beer High speed photospheric material flow observed at the polarity inversion line of a delta-type sunspot producing an X5.4 flare on 7 March 2012 -- Shimizu, T., Lites, B.W., and Bamba, Y. Magnetohydrodynamic Simulation of the X2.2 Solar Flare on 2011 February 15. I. Comparison with the Observations -- S. Inoue, K. Hayashi, T. Magara, G. S. Choe, and Y. D. Park 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 canfield at physics.montana.edu

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RHESSI Science Nuggets in May, 2014
by Hugh Hudson 09 Jun '14

09 Jun '14

No. 226, "The 3D Standard Model for Eruptive Flares," by Miho Janvier: Torus instability and slipping reconnection. No. 227, "Solar Cosmic Rays, Neutrons, and Fermi Gamma-Rays," by Hugh Hudson and Alec MacKinnon: Exciting new solar high-energy observations. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets Older Nuggets are also available at http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets (the current series, 2008-present), and at http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (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 04 Jun '14

04 Jun '14

MAX MILLENNIUM NEWS 04 June 2014 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 Self-similar expansion of solar coronal mass ejections: implications for Lorentz self-force driving -- Prasad Subramanian, K. P. Arunbabu, Angelos Vourlidas, Adwiteey Mauriya Mean-field dynamo action from delayed transport -- Rheinhardt, M., Devlen, E., R?dler, K.-H., & Brandenburg, A. Abundance Enhancements in Impulsive Solar Energetic-Particle Events with Associated Coronal Mass Ejections -- Donald V. Reames, Edward W. Cliver, Stephen W. Kahler 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 canfield at physics.montana.edu

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MMScience June 2014