Results 71 to 80 of about 321,065 (395)

Solar Flares [PDF]

open access: yesInternational Astronomical Union Colloquium, 1995
AbstractThere are many types of solar flare, but the classic type is a two-ribbon flare with three phases — a preflare phase, a rise phase and a main phase. The properties of these phases are described, together with some recent observational advances in understanding the conditions for solar flares.
openaire   +1 more source

A FLARE IN THE JET OF PICTOR A [PDF]

open access: yesThe Astrophysical Journal, 2010
A Chandra X-ray imaging observation of the jet in Pictor A showed a feature that appears to be a flare that faded between 2000 and 2002. The feature was not detected in a follow-up observation in 2009. The jet itself is over 150 kpc long and a kpc wide, so finding year-long variability is surprising.
Emil Lenc   +15 more
openaire   +7 more sources

Insights Into the Concept of Rheumatoid Arthritis Flare

open access: yesFrontiers 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   +8 more
doaj   +1 more source

Saturation Levels for White-light Flares of Flare Stars: Variation of Minimum Flare Duration for Saturation [PDF]

open access: yes, 2012
Taking into account results obtained from models and from statistical analyses of obtained parameters, we discuss flare activity levels and flare characteristics of five UV Ceti stars. We present the parameters of unpublished flares detected over two years of observations of V1005 Ori.
arxiv   +1 more source

A Database of Magnetic and Thermodynamic Properties of Confined And Eruptive Solar Flares [PDF]

open access: yesarXiv, 2023
Solar flares sometimes lead to coronal mass ejections that directly affect the Earth's environment. However, a large fraction of flares, including on solar-type stars, are confined flares. What are the differences in physical properties between confined and eruptive flares?
arxiv  

Deep Learning Based Solar Flare Forecasting Model. I. Results for Line-of-sight Magnetograms

open access: yes, 2018
Solar flares originate from the release of the energy stored in the magnetic field of solar active regions, the triggering mechanism for these flares, however, remains unknown.
Xin Huang   +5 more
semanticscholar   +1 more source

A Very Young Adult Female Patient with Hepatitis B Flare: A Case Report

open access: yesActa Medica Indonesiana, 2023
Hepatitis B virus (HBV) infection is a major global health problem. It can cause chronic infection and put people at high risk of death from cirrhosis and liver cancer.
Andreas Agung Kurniawan, Ummi Maimunah
doaj  

New Insights Into an Overlooked Entity: Long-Term Outcomes of Membranous Lupus Nephritis From a Single Institution Inception Cohort

open access: yesFrontiers in Medicine, 2022
IntroductionPure membranous lupus nephritis (MLN) accounts for 10–20% of total cases of lupus nephritis and is generally associated with a better patient and renal survival compared to proliferative classes.
Eleni Kapsia   +6 more
doaj   +1 more source

Are complex magnetic field structures responsible for the confined X-class flares in super active region 12192? [PDF]

open access: yes, 2017
From 2014 October 19 to 27, six X-class flares occurred in super active region (AR) 12192. They were all confined flares and were not followed by coronal mass ejections (CMEs). To examine the structures of the four flares close to the solar disk center from October 22 to 26, we employ firstly composite triple-time images in each flare process to ...
arxiv   +1 more source

Flares and the chromosphere [PDF]

open access: yesEarth, Planets and Space, 2009
Abstract The chromosphere (the link between the photosphere and the corona) plays a crucial role in flare and CME development. In analogies between flares and magnetic substorms, it is normally identified with the ionosphere, but we argue that the correspondence is not exact. Much of the important physics of this interesting region remains to
Hugh S. Hudson   +3 more
openaire   +2 more sources

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