Results 71 to 80 of about 324,715 (248)

From Radio to X-ray: Flares on the dMe Flare Star EV Lacertae [PDF]

Astrophys.J. 621 (2005) 398-416, 2004
We present the results of a campaign to observe flares on the M dwarf flare star EV Lacertae over the course of two days in 2001 September, utilizing a combination of radio continuum, optical photometric and spectroscopic, ultraviolet spectroscopic, and X-ray spectroscopic observations, to characterize the multi-wavelength nature of flares from this ...
arxiv   +1 more source

Multiwavelength Study of M8.9/3B Solar Flare from AR NOAA 10960

, 2010
We present a multi-wavelength analysis of a long duration white-light solar flare (M8.9/3B) event that occurred on 4 June 2007 from NOAA AR 10960. The flare was observed by several spaceborne instruments, namely SOHO/MDI, Hinode/SOT, TRACE and STEREO ...
A. K. Srivastava, A.K. Srivastava, B. Filippov, B. Filippov, B. Kliem, B.P. Filippov, C. Liu, C.L. Gerrard, D. Nandy, D.M. Rust, D.R. Williams, G.A. Gary, H. Ji, H. Wang, H. Wang, J. Krall, J. Lin, K.H. Schatten, M.D. Altschuler, P. Kumar, P.C. Liewer, P.H. Scherrer, Pankaj Kumar, R. Liu, R.C. Canfield, S. Min, S. Tsuneta, S.F. Gissot, S.K. Antiochos, T. Amari, T. Török, T. Török, T.G. Forbes, T.T. Ishii, T.T. Ishii, W. Tend van, Wahab Uddin, Y. Fan, Y. Liu   +38 more
core   +1 more source

Short Duration Stellar Flares in GALEX Data [PDF]

, 2019
We report on a population of short duration near-ultraviolet (NUV) flares in stars observed by the Kepler and GALEX missions. We analyzed NUV light curves of 34,276 stars observed from 2009-2013 by both the GALEX (NUV) and Kepler (optical) space missions with the eventual goal of investigating multi-wavelength flares. From the GALEX data we constructed
arxiv   +1 more source

Prediction of Solar Flare Size and Time-to-Flare Using Support Vector Machine Regression [PDF]

ApJ, 2015, 812, 51, 2015
We study the prediction of solar flare size and time-to-flare using 38 features describing magnetic complexity of the photospheric magnetic field. This work uses support vector regression to formulate a mapping from the 38-dimensional feature space to a continuous-valued label vector representing flare size or time-to-flare.
arxiv   +1 more source

Gradual Solar Coronal Dimming and Evolution of Coronal Mass Ejection in the Early Phase

, 2017
We report observations of a two-stage coronal dimming in an eruptive event of a two-ribbon flare and a fast coronal mass ejection (CME). Weak gradual dimming persists for more than half an hour before the onset of the two-ribbon flare and the fast rise ...
Cheng, Jianxia, Qiu, Jiong
core   +1 more source

Evidence for Partial Taylor Relaxation from Changes in Magnetic Geometry and Energy during a Solar Flare [PDF]

, 2012
Solar flares are powered by energy stored in the coronal magnetic field, a portion of which is released when the field reconfigures into a lower energy state. Investigation of sunspot magnetic field topology during flare activity is useful to improve our
Bloomfield, D. Shaun, Gallagher, Peter T., Murray, Sophie A.   +2 more
core   +1 more source

Scaling laws of solar and stellar flares

, 2007
In this study we compile for the first time comprehensive data sets of solar and stellar flare parameters, including flare peak temperatures T_p, flare peak volume emission measures EM_p, and flare durations t_f from both solar and stellar data, as well ...
Doyle J. G., Jakimiec J., Maggio A., Manuel Gudel, Markus J. Aschwanden, Mewe R., Pan H. C., Robert A. Stern, Shimizu T., Tsuru T.   +9 more
core   +1 more source

Fermi-LAT Observations of the 2017 September 10 Solar Flare [PDF]

Astrophysical Journal, 2018
The Fermi-Large Area Telescope detection of the X8.2 GOES class solar flare of 2017 September 10 provides for the first time observations of a long-duration high-energy gamma-ray flare associated with a ground-level enhancement (GLE).
N. Omodei, M. Pesce-Rollins, F. Longo, A. Allafort, S. Krucker   +4 more
semanticscholar   +1 more source

Clinical Implication of the Effect of the Production of Neutralizing Antibodies Against SARS-Cov-2 for Chronic Immune Thrombocytopenia Flare-Up Associated with COVID-19 Infection: A Case Report and the Review of Literature

Infection and Drug Resistance, 2022
Chika Maekura,1 Ayako Muramatsu,1 Hiroaki Nagata,1 Haruya Okamoto,1 Akio Onishi,1 Daishi Kato,1 Reiko Isa,1 Takahiro Fujino,1 Taku Tsukamoto,1 Shinsuke Mizutani,1 Yuji Shimura,1,2 Tsutomu Kobayashi,1 Keita Okumura,3 Tohru Inaba,4 Yoko Nukui,4 Junya ...
Maekura C, Muramatsu A, Nagata H, Okamoto H, Onishi A, Kato D, Isa R, Fujino T, Tsukamoto T, Mizutani S, Shimura Y, Kobayashi T, Okumura K, Inaba T, Nukui Y, Kuroda J   +15 more
doaj  

Insights Into the Concept of Rheumatoid Arthritis Flare

Frontiers in Medicine, 2022
Identification of a pathological change in the course of systemic chronic immune-inflammatory diseases is key to delivering effective treatment strategies. In this context, one of the most compelling issues is the concept of flare.
Emanuele Bozzalla-Cassione, Silvia Grignaschi, Blerina Xoxi, Terenzj Luvaro, Maria Immacolata Greco, Iolanda Mazzucchelli, Serena Bugatti, Carlomaurizio Montecucco, Antonio Manzo   +8 more
doaj   +1 more source