MMScience

mmscience@solar.physics.montana.edu

1 participants
1106 discussions

Free eclipse app for July 2, 2019
by Hugh Hudson 24 Jun '19

24 Jun '19

The free eclipse app "Eclipse Camera 2019" This is just a reminder that this app exists, both for IOS and for Android, and that it can be used to get valuable data from timing C2 and C3. The GPS capabilities of the mobile phones, plus the existence of the very precise Kaguya/LRO lunar data, should make this the most precise measurement yet of the solar radii. The more data the better, and so everybody is encouraged to let their mobile phone work on this effort. We are hoping for heavy redundancy to let us approach 1 msec timing precision in the mean. 1) Get the app "Eclipse Camera 2019'. Check it out and identify Equipment Settings -> Equipment "phone only". Locate the "Eclipse Image Capture" feature to be prepared. 2) Orient your phone so that the front camera sees the Sun. This can be quite approximate. Cover it to keep from overheating. 3) One minute before C2 (the app will tell you within a second or two, depending upon your GPS location), initiate Capture Mode and uncover the camera. The app will also provide an audible signal prior to C2 as a reminder. 4) Leave the camera alone to do its thing through C3. 5) When you return to Internet range, follow the app's instructions about upload. It is also possible to use an external lens with the app. One favorite one is the Huatop 20x (available on Amazon). This will take interesting coronal images and also resolve individual Baily's Beads. This is an outgrowth of the 2017 Megamovie program. See URLs eclipsemega.movie and https://eclipsecamera.com for more information. Hugh Hudson and Juan Carlos Martinez Oliveros

1 0

CESRA nuggets in June 2019
by Eduard Kontar 19 Jun '19

19 Jun '19

3D reconstruction of CME-driven shock-streamer interaction as a coronal magnetic field diagnostics by S. Mancuso et al. http://cesra.net/?p=2212 Scaling-laws of Radio Spike Bursts and Their Constraints on New Solar Radio Telescopes by Baolin Tan et al. http://cesra.net/?p=2229 --------- CESRA Highlights of Solar Radio Physics, aka CESRA Nuggets, are short communications written in language accessible to a non-expert in the specific area and designed to keep solar and heliophysics communities informed and up-to-date about current research. The highlights can be followed, discussed, commented and shared via http://www.facebook.com/solarcesra/ and http://twitter.com/CESRA_community

1 0

Max Millennium News
by richard.canfield＠montana.edu 19 Jun '19

19 Jun '19

MAX MILLENNIUM NEWS 19 June 2019 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 Magnetic Helicity from Multipolar Regions on the Solar Surface -- Philippe-A. Bourdin, Axel Brandenburg The width distribution of solar coronal loops and strands - Are we hitting rock bottom ? -- Aschwanden,M.J., Peter,H. Exoplanet predictions based on harmonic orbit resonances -- Aschwanden,M.J. and Scholkmann,F. Order out of randomness: Self-organization processes in astrophysics -- Aschwanden,M.J., Scholkmann,F., Bethune,W., Schmutz,W., Abramenko,W., Cheung,M.C.M., Mueller,D., Benz,A.O., Chernov,G., Kritsuk,A.G., Scargle,J.D., Melatos,A., Wagoner,R.V., Trimble,V., Green,W. Convection-driven generation of ubiquitous coronal waves -- Aschwanden,M.J., Gosic,M., Hurlburt,N.E., and Scullion,E. The minimum energy principle applied to Parker's coronal braiding and nanoflaring scenario -- Aschwanden, M.J. and van Ballegooijen,A.A. Self-organizing systems in planetary physics: Harmonic resonances of planet and moon orbits -- Aschwanden, M.J. Global energetics of solar flares: VIII. The Low-Energy Cutoff -- Aschwanden, M.J., Kontar, E.P., and Jeffrey, N.L.S. Global Energetics of Solar Flares: VII. Aerodynamic Drag in Coronal Mass Ejections -- Aschwanden, M.J. and Gopalswamy, N. Self-organized criticality in solar and stellar flares: Are extreme events scale-free ? -- Markus J. Aschwanden 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 solar.physics.montana.edu

1 0

Max Millennium News
by richard.canfield＠montana.edu 12 Jun '19

12 Jun '19

MAX MILLENNIUM NEWS 12 June 2019 CONTENTS 1. 20TH ANNIVERSARY OF THE FIRST MOTD 2. E-PRINTS POSTED IN THE PAST WEEK 3. FROM THE EDITOR ===================================================================== 1. 20TH ANNIVERSARY OF THE FIRST MOTD ===================================== > Richard Canfield <richard.canfield at montana.edu> Exactly twenty years ago, on June 12th, 1999, Dale Gary, Neale Ranns, and I posted the first Max Millennium Message of the Day (MOTD), supported by the RHESSI PI team with NASA funding. A year and a half later, promptly after RHESSI launch, Peter Gallagher and Bill Marquette sent the first message from the Max Millennium Chief Observers (MMCOs). These messages continue to this day. Their effectiveness has been documented in "Performance of Major Flare Watches from the Max Millennium Program" (2001 - 2010), Bloomfield, D. S.; Gallagher, P. T.; Marquette, W. H.; Milligan, R. O.; Canfield, R. C. 2016SoPh..291..411B 2016/02 It is my pleasure to acknowledge the following solar physicists for their MMCO service over these 20 years, in order of their initial posts on http://solar.physics.montana.edu/hypermail/mmmotd/date.html * Peter Gallagher, 700 messages, 2001 - 2009 * Bill Marquette, 2482 messages, 2001 - present * James McAteer, 617 messages, 2003 - 2009 * Ryan Milligan, 1171 messages, 2007 - present * Shaun Bloomfield, 869 messages, 2008 - present * Claire Raftery, 125 messages, 2009 - 2012 * Paul Higgins, 199 messages, 2012 - 2015 * Ying Li, 395 messages, 2015 - present * Aoife McCloskey, 60 messages, 2018 - present Please join me in thanking these generous colleagues for their service to our community using mmchiefobserver (at) gmail.com 2. E-PRINTS POSTED IN THE PAST WEEK =================================== > http://solar.physics.montana.edu/cgi-bin/eprint/default_page.pl A Wavelet Based Approach to Solar-Terrestrial Coupling -- Ch. Katsavrias, A. Hillaris, P. Preka--Papadema Interplanetary Type IV Bursts -- Alexander Hillaris, Constantine Bouratzis, Alexander Nindos High resolution observations with Artemis-IV and the NRH. I. Type IV associated narrow-band bursts -- C. Bouratzis, A. Hillaris, C.E. Alissandrakis, P. Preka-Papadema, X. Moussas, C. Caroubalos, P. Tsitsipis, A. Kontogeorgos Detection of spike-like structures near the front of type-II bursts -- A.S. Armatas, C. Bouratzis, A. Hillaris, C.E. Alissandrakis, P. Preka-Papadema, X. Moussas, E. Mitsakou, P. Tsitsipis, A. Kontogeorgos High resolution observations with Artemis-JLS, (II) Type IV associated intermediate drift bursts -- C. Bouratzis, A. Hillaris, C.E. Alissandrakis, P. Preka-Papadema, X. Moussas, C. Caroubalos, P. Tsitsipis, A. Kontogeorgos Oscillation of a small H-alpha surge in a solar polar coronal hole -- Cho, K.-S., Cho, I.-H., Nakariakov, V.M., Yurchyshyn, V.B., Yang, H., Kim, Y.-H., Kumar, P., Magara, T. Radio Observations of the January 20, 2005 X-Class Event -- C. Bouratzis, P. Preka-Papadema, A. Hillaris, P. Tsitsipis, A. Kontogeorgos, V. G. Kurt X. Moussas Fine Structure of Metric Type-IV Radio Bursts Observed with the ARTEMIS-IV Radio Spectrograph: Association with Flares and Coronal Mass Ejections -- C. Bouratzis, A. Hillaris, C. E. Alissandrakis, P. Preka-Papadema, X. Moussas, C. Caroubalos, P. Tsitsipis, A. Kontogeorgos Spectral Analysis of the September 2017 Solar Energetic Particle Events -- A. Bruno, E.R. Christian, G.A. de Nolfo, I.G. Richardson, J.M. Ryan Solar Energetic Particle Events Observed by the PAMELA Mission -- A. Bruno, G. A. Bazilevskaya, M. Boezio, E. R. Christian, G. A. de Nolfo, M. Martucci, M. Merge', V. V. Mikhailov, R. Munini, I. G. Richardson, J. M. Ryan, S. Stochaj, O. Adriani, G. C. Barbarino, R. Bellotti, E. A. Bogomolov, M. Bongi, V. Bonvicini, S. Bottai, F. Cafagna, D. Campana, P. Carlson, M. Casolino, G. Castellini, C. De Santis, V. Di Felice, A. M. Galper, A. V. Karelin, S. V. Koldashov, S. Koldobskiy, S. Y. Krutkov, A. N. Kvashnin, A. Leonov, V. Malakhov, L. Marcelli, A. G. Mayorov, W. Menn, E. Mocchiutti, A. Monaco, N. Mori, G. Osteria, B. Panico, P. Papini, M. Pearce, P. Picozza, M. Ricci, S. B. Ricciarini, M. Simon, R. Sparvoli, P. Spillantini, Y. I. Stozhkov, A. Vacchi, E. Vannuccini, G. I. Vasilyev, S. A. Voronov, Y. T. Yurkin, G. Zampa, N. Zampa COMPARING LONG-DURATION GAMMA-RAY FLARES AND HIGH-ENERGY SOLAR ENERGETIC PARTICLES -- G. A. de Nolfo, A. Bruno, J. M. Ryan, S. Dalla, J. Giacalone, I. G. Richardson, E. R. Christian, S. J. Stochaj, G. A. Bazilevskaya, M. Boezio, M. Martucci, V. V. Mikhailov, R. Munini Characteristics of ephemeral coronal holes -- A. R. Inglis, R. E. O'Connor, W. D. Pesnell, M. S. Kirk, N. Karna The Role of Energy Diffusion in the Deposition of Energetic Electron Energy in Solar and Stellar Flares -- Natasha L. S. Jeffrey, Eduard P. Kontar, Lyndsay Fletcher 3. 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 solar.physics.montana.edu

1 0

Max Millennium News
by richard.canfield＠montana.edu 05 Jun '19

05 Jun '19

MAX MILLENNIUM NEWS 05 June 2019 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 Spectroscopy and Differential Emission Measure diagnostics of a coronal dimming associated with a fast halo CME -- Astrid M. Veronig, Peter Gomory, Karin Dissauer, Manuela Temmer, Kamalam Vanninnathan Evolution of Magnetic Helicity in Solar Cycle 24 -- V.V. Pipin, A.A. Pevtsov, Yang Liu, A.G. Kosovichev 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 solar.physics.montana.edu

1 0

Max Millennium News
by richard.canfield＠montana.edu 29 May '19

29 May '19

MAX MILLENNIUM NEWS 29 May 2019 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 Propagating Kink Waves in the Solar Corona -- Ajay K. Tiwari, Richard J. Morton, Stephane Rggnier, and James A. McLaughlin Non-equilibrium ionization effects on solar EUV and X-ray imaging observations -- Jin-Yi Lee, John C. Raymond, Katharine K. Reeves, Chengcai Shen, Yong-Jae Moon, and Yeon-Han Kim Linear waves in a non-equilibrium ionisation partially ionised plasma -- Istvan Ballai How Many Twists Do Solar Coronal Jets Release? -- Jiajia Liu, Yuming Wang, Robertus Erdélyi Different Signatures of Chromospheric Evaporation in Two Solar Flares Observed with IRIS -- Y. Li, M. D. Ding, J. Hong, H. Li, W. Q. Gan 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 solar.physics.montana.edu

1 0

RHESSI Nuggets in May 2019
by Hugh Hudson 28 May '19

28 May '19

No. 351, “The Cosmic-Ray Shadow and Coronal Magnetism”, by Frederik Tenholt: Measuring the coronal magnetic field in Antarctica. No. 350, “Kristian Birkeland”, by Hugh Hudson and Lyndsay Fletcher: Space weather a century ago. See http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets . We publish these at roughly two-week intervals and welcome contributions, which should be related, at least loosely, to RHESSI science.

1 0

CESRA solar radio science highlights in May 2019
by Eduard Kontar 28 May '19

28 May '19

The effect of scattering on the apparent positions of solar radio sources observed by LOFAR by Mykola Gordovskyy http://cesra.net/?p=2206 High‐Frequency Communications Response to Solar Activity in September 2017 as Observed by Amateur Radio Networks by Nathan A. Frissell http://cesra.net/?p=2198 ---- CESRA Highlights of Solar Radio Physics, aka CESRA Nuggets, are short communications written in language accessible to a non-expert in the specific area and designed to keep solar and heliophysics communities informed and up-to-date about current research. The highlights can be followed, discussed, commented and shared via http://www.facebook.com/solarcesra/ http://twitter.com/CESRA_community

1 0

Max Millennium News
by richard.canfield＠montana.edu 22 May '19

22 May '19

MAX MILLENNIUM NEWS 22 May 2019 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 Physical Nature of Spiral Wave Patterns in Sunspots -- Juhyung Kang, Jongchul Chae, V. M. Nakariakov, Kyuhyoun Cho, Hannah Kwak, Kyeore Lee Predicting Solar Flares Using a Long Short-Term Memory Network -- Hao Liu, Chang Liu, Jason T. L. Wang, Haimin Wang 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

1 0

Max Millennium News
by richard.canfield＠montana.edu 15 May '19

15 May '19

MAX MILLENNIUM NEWS 15 May 2019 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 Coronal loop transverse oscillations excited by different driver frequencies -- Andrey Afanasyev, Konstantinos Karampelas, Tom Van Doorsselaere 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

1 0

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

MMScience