MMScience May 2016

mmscience@solar.physics.montana.edu

4 participants
8 discussions

Max Millennium News
by canfield＠mithra.physics.montana.edu 25 May '16

25 May '16

MAX MILLENNIUM NEWS 25 May 2016 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 role of Alfvén wave heating in solar prominence -- Roberto Soler, Jaume Terradas, Ramon Oliver, Jose Luis Ballester Simulation of Quiet-Sun Hard X-rays Related to Solar Wind Superhalo Electrons -- Wen Wang, Linghua Wang, Sam Krucker, and Iain Hanna Why are flare ribbons associated with the spines of magnetic null points generically elongated? -- D. I. Pontin, K. Galsgaard, P. Demoulin Hydraulic effects in a radiative atmosphere with ionization -- Pallavi Bhat, 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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GOES/EUVS data now available through SSWIDL
by Ryan Milligan 25 May '16

25 May '16

The three most recent GOES satellites – GOES-13, -14, and -15 – each have onboard an EUV Sensor (EUVS) in addition to the more familiar X-ray Sensor (XRS). EUVS has five channels (A, B, C, D, and E) that span the 50-1270A range, with the E-channel centered on the Lyman-alpha line of hydrogen at 1216A in a broadband manner similar to SDO/EVE MEGS-P, although their flare profiles are inexplicably different (see Milligan & Chamberlin 2016). Studies of Lyman-alpha emission are important from both a space weather and solar flare physics perspective as Lyman-alpha is a strong driver of changes in ionospheric composition and dynamics, as well as being a substantial radiator of flare energy from the chromosphere during the impulsive phase. To that end, the GOES/EUVS data have recently been incorporated into the GOES workbench, which is accessible via SSWIDL, for ease of use by the heliophysics community. While GOES-13 has been taking sporadic measurements in the EUV since mid-2006, GOES-14 data are available from mid-2009 to mid-2010, and again for a few months in late 2012. GOES-15 has been much more consistent, observing the Sun continuously since early 2010, although data are currently only available up until October 2014, with more recent data becoming available soon. To access the GOES workbench, simply type IDL> goes. This will bring up the parent widget from which you can select the EUVA, EUVB, or EUVE data from the ‘Archive’ drop down menu. Note that the Lyman-alpha profiles exhibit a dip in emission for around 4 hours each day due to geocoronal absorption by the earth’s atmosphere. For more information on GOES EUVS data, refer to https://www.ngdc.noaa.gov/stp/satellite/goes/doc/GOES_NOP_EUV_readme.pdf, and for details on how these data are incorporated into SSWIDL, along with the command line routines, please visit http://hesperia.gsfc.nasa.gov/rhessidatacenter/complementary_data/goes.html. All credit for this effort goes to Kim Tolbert at NASA/GSFC, with thanks also to Janet Machol at NOAA/NGDC for her advice and assistance.

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Max Millennium News
by canfield＠mithra.physics.montana.edu 18 May '16

18 May '16

MAX MILLENNIUM NEWS 18 May 2016 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 Undamped transverse oscillations of coronal loops as a self-oscillatory process -- Nakariakov, V. M., Anfinogentov, S., Nistico, G., Lee, D.-H. Particle Acceleration in Solar Flares and Associated CME Shocks -- Vahe Petrosian Hard X-ray morphology of the X1.3 April 25, 2014 partially occulted limb solar flare -- Frederic Effenberger, Fatima Rubio da Costa, Vahe Petrosian Data-driven magnetohydrodynamic modelling of a flux-emerging active region leading to solar eruption -- Chaowei Jiang, S. T. Wu, Xuesheng Feng, Qiang Hu Global Energetics of Solar Flares: IV. Coronal Mass Ejection Energetics -- Aschwanden, M.J. On the Characteristics of Footpoints of Solar Magnetic Flux Ropes during the Eruption -- X. Cheng and M. D. Ding Dependence of kink oscillation damping on the amplitude -- Goddard, C.R., Nakariakov, V.M. Magnetohydrodynamic oscillations in the solar corona and Earth's magnetosphere: Towards consolidated understanding -- V.M. Nakariakov, V. Pilipenko, B. Heilig, P. Jelínek, M. Karlicky, D.Y. Klimushkin, D.Y. Kolotkov, D.-H. Lee, G. Nistico, T. Van Doorsselaere, G. Verth, I.V. Zimovets Nonlinear oscillations of coalescing magnetic flux ropes -- Dmitrii Y. Kolotkov, Valery M. Nakariakov, and George Rowlands Magnetic reconnection between a solar filament and nearby coronal loops -- Leping Li, Jun Zhang, Hardi Peter, Eric Priest, Huadong Chen, Lijia Guo, Feng Chen, Duncan Mackay Energetic characterisation and statistics of solar coronal brightenings -- V. Joulin, E. Buchlin, J. Solomon, C. Guennou 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 canfield＠mithra.physics.montana.edu 11 May '16

11 May '16

MAX MILLENNIUM NEWS 11 May 2016 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 Damping of prominence longitudinal oscillations due to mass accretion -- Michael S. Ruderman and Manuel Luna Interaction of Two Filament Channels of Different Chiralities -- Navin Chandra Joshi, Boris Filippov, Brigitte Schmieder, Tetsuya Magara, Young-Jae Moon, Wahab Uddin Explosive Chromospheric Evaporation in a Circular-ribbon Flare -- Q. M. Zhang, D. Li, Z. J. Ning, Y. N. Su, H. S. Ji and Y. Guo The Formation and Early Evolution of a Coronal Mass Ejection and its Associated Shock Wave on 2014 January 8 -- Linfeng Wan, Xin Cheng, Tong Shi, Wei Su, M. D. Ding Observations of an X-shaped Ribbon Flare in the Sun and Its Three-dimensional Magnetic Reconnection -- Y. Li, J. Qiu, D. W. Longcope, M. D. Ding, K. Yang 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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Announcing RHESSI Science Nugget No. 274
by Hugh Hudson 10 May '16

10 May '16

“Data-driven radiative hydrodynamic modeling of SOL2014-03-29,” by Fatima Rubio da Costa: RADYN modeling of multiple impulses. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets listing the current series, 2008-present, and http://sprg.ssl.berkeley.edu/~tohban/nuggets/ for 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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Announcing RHESSI Science Nugget No. 273
by Hugh Hudson 06 May '16

06 May '16

“Electron acceleration and hard X-ray emission from SOL2013-11-09,” by Yuri Tsap and Galina Motorina. Testing the thick-target model in an interesting flare! See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets listing the current series, 2008-present, and http://sprg.ssl.berkeley.edu/~tohban/nuggets/ for 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 May '16

04 May '16

MAX MILLENNIUM NEWS 04 May 2016 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 Spectroscopic Diagnostics of Solar Magnetic Flux Ropes Using Iron Forbidden Line -- X. Cheng and M. D. Ding Transverse oscillations and stability of prominences in a magnetic field dip -- D.Y. Kolotkov, G. Nistico and V.M. Nakariakov Comparing SSN Index to X-ray Flare and Coronal Mass Ejection Rates from Solar Cycles 22-24 -- Lisa M. Winter, Rick Pernak, and K.S. Balasubramaniam Quasi-periodic processes in the flare loop generated by sudden temperature enhancements at loop footpoints -- M. Karlicky and P. Jelinek The apparent critical decay index at the onset of solar prominence eruptions -- Zuccarello F.P., Aulanier G., Gilchrist S.A. 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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First circular: Solar Physics with Radio Observations (Sep. 9-10) @ Nagoya
by Kiyoto Shibasaki 02 May '16

02 May '16

First Circular Solar Physics with Radio Observations - Continued Operation of Nobeyama Radioheliograph - http://st4a.stelab.nagoya-u.ac.jp/SPRO2016/ Date: September 9 (Fri.) and 10 (Sat.), 2016 Venue: Nagoya University Access: http://en.nagoya-u.ac.jp/access/index.html Campus map: http://en.nagoya-u.ac.jp/map/index.html SOC: K. S. Cho, N. Gopalswamy, M. Ishii, S. Masuda, K. Shibasaki (chair), and Y. Yan LOC: S. Masuda (chair), ISEE staff Objective of the meeting: Nobeyama Radioheliograph (NoRH) has been observing the Sun since 1992. After March 2015, International Consortium for the Continued Operation of Nobeyama Radioheliograph (ICCON) took over the operation from NAOJ and operated successfully for more than one year. To enhance science output from NoRH, we wish to organize a symposium to discuss new science results from NoRH and future targets of NoRH. Recently, many new radio telescopes started solar observations. This symposium is also a good chance to learn about them and to discuss collaboration with NoRH. Deadlines for abstract submission and registration: July 31, 2016 http://st4a.stelab.nagoya-u.ac.jp/SPRO2016/ Sponsors: ICCON, ISEE (Nagoya U.) -- ----------------------------------- Kiyoto Shibasaki Solar Physics Research Inc. shibasaki.kiyoto(a)md.ccnw.ne.jp http://www.md.ccnw.ne.jp/sprinc/ -----------------------------------

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MMScience May 2016