MMScience December 2012

mmscience@solar.physics.montana.edu

3 participants
5 discussions

Announcing two RHESSI Science Nuggets
by Hugh Hudson 28 Dec '12

28 Dec '12

A New Year's special: two new RHESSI Science Nuggets: No. 189, "FOXSI Success" (Lindsey Glesener and Sa"m Krucker) - the FOXSI rocket soared, and right on schedule a B-class flare was detected. No. 190, "Flare Productivity" (Hugh Hudson and Lyndsay Fletcher) - the number of flares per active region fluctuated oddly in 2004-2005, and the RHESSI flare observations help to track such statistical features. Older Nuggets are 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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Christmas special: two new UKSP nuggets
by Iain Hannah 20 Dec '12

20 Dec '12

A christmas nugget special, two instead of one: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 29. Particle dynamics in the heliospheric current sheet<http://www.uksolphys.org/?p=5699> by Valentina Zharkova (University of Bradford) and O. Khabarova (Heliophysical Laboratory of IZMIRAN, Russia) A model for particle interactions with the heliospheric current sheet solves three puzzles at once http://www.uksolphys.org/?p=5699 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 30. Could the unusual solar minimum have been predicted?<http://www.uksolphys.org/?p=5673> by Anne-Marie Broomhall*,#, S. Basu†, W.J. Chaplin#, Y. Elsworth# *University of Warwick, #University of Birmingham, †Yale University Helioseismic warnings of the Sun’s strange behaviour. http://www.uksolphys.org/?p=5673 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ UKSP Nuggets are published on a monthly basis highlighting solar physics research in the UK http://www.uksolphys.org/uksp-nuggets All the best for the holiday season and 2013 Iain Hannah and Lyndsay Fletcher -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dr. Iain G. Hannah Eml: iain.hannah(a)glasgow.ac.uk Astronomy & Astrophysics Group, Tel: +44 (0)141 330 6427 School of Physics & Astronomy, Fax: +44 (0)141 330 5183 Kelvin Building, University of Glasgow, Glasgow, Scotland, UK G12 8QQ Web: http://www.astro.gla.ac.uk/~iain/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Max Millennium News
by canfield＠mithra.physics.montana.edu 19 Dec '12

19 Dec '12

MAX MILLENNIUM NEWS 19 December 2012 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 Note on Computation of Relative Magnetic Helicity Flux Across the Photosphere -- Yang Liu, Peter W. Schuck Ejections of magnetic structures above a spherical wedge driven by a convective dynamo with differential rotation -- J. Warnecke, P.J. Kapyla, M.J. Mantere, A. Brandenburg Magnetic Activity Cycles in the Exoplanet Host Star epsilon Eridani -- T.S. Metcalfe, A.P. Buccino, B.P. Brown, S. Mathur, D.R. Soderblom, T.J. Henry, P.J.D. Mauas, R. Petrucci, J.C. Hall, S. Basu The Relationship Between Plasma Flow Doppler Velocities and Magnetic Field Parameters During the Emergence of Active Regions at the Solar Photospheric Level -- A. Khlystova The Horizontal Component of Photospheric Plasma Flows During the Emergence of Active Regions on the Sun -- A. Khlystova The Build-up to Eruptive Solar Events Viewed as the Development of Chiral Systems -- Sara F. Martin, Olga Panasenco, Mitchell A. Berger, Oddbjorn Engvold, Yong Lin, Alexei A. Pevtsov, Nandita Srivastava Solar filament eruptions and their physical role in triggering Coronal Mass Ejections -- Schmieder B., Demoulin P., Aulanier G. Can Superflares Occur on Our Sun ? -- Kazunari Shibata, Hiroaki Isobe, Andrew Hillier, Arnab Rai Choudhuri, Hiroyuki Maehara, Takako T. Ishii, Takuya Shibayama, Shota Notsu, Yuta Notsu, Takashi Nagao, Satoshi Honda, Daisaku Nogami Direct Evidence for a Fast CME Driven by the Prior Formation and Subsequent Destabilization of a Magnetic Flux Rope -- S. Patsourakos, A. Vourlidas, G. Stenborg Silicon Abundance from RESIK Solar Flare Observations -- B. Sylwester, K. J. H. Phillips, J. Sylwester, A. Kepa Nonlinear Force-Free Magnetic Field Fitting to Coronal Loops with and without Stereoscopy -- Markus J. Aschwanden Kappa Distribution Model for Hard X-Ray Coronal Sources of Solar Flares -- M. Oka, S. Ishikawa, P. Saint-Hilaire, S. Krucker and R. P. Lin 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 canfield at physics.montana.edu

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

12 Dec '12

MAX MILLENNIUM NEWS 12 December 2012 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 Hard X-Ray Observations of a Jet and Accelerated Electrons in the Corona -- Lindsay Glesener, Sam Krucker, R.P. Lin Stereoscopic Analysis of the 31 August 2007 Prominence Eruption and Coronal Mass Ejection -- P.C. Liewer, O. Panasenco, J.R. Hall Temporal and Spatial Analyses of Spectral Indices of Nonthermal Emissions Derived from Hard X-Rays and Microwaves -- Ayumi Asai, Junko Kiyohara, Hiroyuki Takasaki, Noriyuki Narukage, Takaaki Yokoyama, Satoshi Masuda, Masumi Shimojo, and Hiroshi Nakajima Origins of Rolling, Twisting and Non-Radial Propagation of Eruptive Solar Events -- Olga Panasenco, Sara F. Martin, Marco Velli, Angelos Vourlidas Coronal Pseudostreamers: Source of Fast or Slow Solar Wind? -- Olga Panasenco, Marco 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 canfield at physics.montana.edu

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Max Millennium News
by canfield＠mithra.physics.montana.edu 05 Dec '12

05 Dec '12

MAX MILLENNIUM NEWS 05 December 2012 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 NASCENT FAST SOLAR WIND OBSERVED BY THE EUV IMAGING SPECTROMETER ON BOARD HINODE -- Hui Tian, Chuanyi Tu, Eckart Marsch, Jiansen He, and Suguru Kamio HYDROGEN LYMAN-ALPHA AND LYMAN-BETA RADIANCES AND PROFILES IN POLAR CORONAL HOLES -- Hui Tian, Luca Teriaca, Werner Curdt, and Jean-Claude Vial Sizes of transition-region structures in coronal holes and in the quiet Sun -- H. Tian, E. Marsch, C.-Y. Tu, L.-D. Xia, and J.-S. He Solar transition region above sunspots -- H. Tian, W. Curdt, L. Teriaca, E. Landi, and E. Marsch Horizontal supergranule-scale motions inferred from TRACE ultraviolet observations of the chromosphere -- H. Tian, H. E. Potts, E. Marsch, R. Attie, J.-S. He PERSISTENT DOPPLER SHIFT OSCILLATIONS OBSERVED WITH HINODE/EIS IN THE SOLAR CORONA: SPECTROSCOPIC SIGNATURES OF ALFVENIC WAVES AND RECURRING UPFLOWS -- Hui Tian, Scott W. McIntosh, Tongjiang Wang, Leon Ofman, Bart De Pontieu, Davina E. Innes, and Hardi Peter On the Periodicity of Oscillatory Reconnection -- McLaughlin, J. A., Thurgood, J. O., MacTaggart, D. The effect of turbulent density fluctuations on wave-particle interactions and solar flare X-ray spectrum -- I. G. Hannah, E. P. Kontar, H. A. S. Reid A solar tornado triggered by flares? -- N. K. Panesar, D. E. Innes, S. K. Tiwari, B. C. Low The Sun's Global Photospheric and Coronal Magnetic Fields: Observations and Models -- D. H. Mackay, A. R. Yeates The Driver of Coronal Mass Ejections in the Low Corona: A Flux Rope -- X. Cheng, J. Zhang, D. M. Ding, Y. Liu, W. Poomvises 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 canfield at physics.montana.edu

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MMScience December 2012