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Solar active regions (ARs) are areas on the Sun with very strong magnetic fields where various activities take place. Prominences are one of the typical solar features in the solar atmosphere, whose eruptions often lead to solar flares and…

太阳与恒星天体物理 · 物理学 2024-02-22 T. Zhang , Q. Hao , P. F. Chen

High-energy radiation from the Sun governs the behavior of Earth's upper atmosphere and such radiation from any planet-hosting star can drive the long-term evolution of a planetary atmosphere. However, much of this radiation is unobservable…

太阳与恒星天体物理 · 物理学 2021-04-14 Anthony L. Pineci , Peter Sadowski , Eric Gaidos , Xudong Sun

Understanding space weather is vital for the protection of our terrestrial and space infrastructure. In order to predict space weather accurately, large amounts of data are required, particularly in the extreme ultraviolet (EUV) spectrum.…

太阳与恒星天体物理 · 物理学 2024-09-02 Manuel Indaco , Daniel Gass , William James Fawcett , Richard Galvez , Paul J. Wright , Andrés Muñoz-Jaramillo

We report on observations of a solar prominence obtained on 26 April 2007 using the Extreme Ultraviolet Imaging Spectrometer on Hinode. Several regions within the prominence are identified for further analysis. Selected profiles for lines…

太阳与恒星天体物理 · 物理学 2015-03-13 Nicolas Labrosse , Brigitte Schmieder , Petr Heinzel , Tetsuya Watanabe

A new algorithm for automatic detection of prominences on the solar limb in 304 A EUV images is presented, and results of its application to SOHO/EIT data discussed. The detection is based on the method of moments combined with a classifier…

太阳与恒星天体物理 · 物理学 2011-05-16 Nicolas Labrosse , Silvia Dalla , Steve Marshall

Solar flare forecasting mainly relies on photospheric magnetograms and associated physical features to predict forthcoming flares. However, it is believed that flare initiation mechanisms often originate in the chromosphere and the lower…

太阳与恒星天体物理 · 物理学 2024-10-22 Grégoire Francisco , Sabrina Guastavino , Teresa Barata , João Fernandes , Dario Del Moro

Observations of the early rise and propagation phases of solar eruptive prominences can provide clues about the forces acting on them through the behavior of their acceleration with height. We have analyzed such an event, observed on 13…

太阳与恒星天体物理 · 物理学 2012-05-17 M. Mierla , D. B. Seaton , D. Berghmans , I. Chifu , A. De Groof , B. Inhester , L. Rodriguez , G. Stenborg , A. N. Zhukov

Prominences and cavities are ubiquitously observed together, but the physical link between these disparate structures has not been established. We address this issue by using dynamic emission in the extreme ultraviolet (EUV) to probe the…

太阳与恒星天体物理 · 物理学 2015-06-15 Donald Schmit , Sarah Gibson

Upcoming large astronomical surveys are expected to capture an unprecedented number of strong gravitational lensing systems. Deep learning is emerging as a promising practical tool for the detection and quantification of these galaxy-scale…

The expanding applications, utilized by more users, enhance hardware performance and further develop cloud systems for big data processing. This leads to numerous unexplored deep learning applications, especially in advanced computer vision…

计算工程、金融与科学 · 计算机科学 2024-05-07 P. Veysi , M. Adeli , N. Peirov Naziri

Structures in the solar corona are the main drivers of space weather processes that might directly or indirectly affect the Earth. Thanks to the most recent space-based solar observatories, with capabilities to acquire high-resolution…

太阳与恒星天体物理 · 物理学 2021-09-23 Šimon Mackovjak , Martin Harman , Viera Maslej-Krešňáková , Peter Butka

Extreme Ultraviolet images of the Sun are becoming an integral part of space weather prediction tasks. However, having different surveys requires the development of instrument-specific prediction algorithms. As an alternative, it is…

太阳与恒星天体物理 · 物理学 2023-08-22 Subhamoy Chatterjee , Andrés Muñoz-Jaramillo , Maher Dayeh , Hazel M. Bain , Kimberly Moreland

Solar prominences are cool, dense stable structures routinely observed in the corona. Prominences are often ejected from the Sun via coronal mass ejections (CMEs). However, they are rarely detected in a cool, low-ionized state within CMEs…

Vast amounts of astronomical photometric data are generated from various projects, requiring significant effort to identify variable stars and other object classes. In light of this, a general, widely applicable classification framework…

天体物理仪器与方法 · 物理学 2024-09-23 Kaiming Cui , D. J. Armstrong , Fabo Feng

The solar magnetized corona is responsible for various manifestations with a space weather impact, such as flares, coronal mass ejections (CMEs) and, naturally, the solar wind. Modeling the corona's dynamics and evolution is therefore…

太阳与恒星天体物理 · 物理学 2024-10-29 Grégoire Francisco , Francesco Pio Ramunno , Manolis K. Georgoulis , João Fernandes , Teresa Barata , Dario Del Moro

We report the first analyses of SDO/AIA observations of the formation of a quiescent polar crown prominence in a coronal cavity. The He II 304 \AA\ (log T_{max} ~ 4.8 K) data show both the gradual disappearance of the prominence due to…

太阳与恒星天体物理 · 物理学 2014-04-04 Thomas E. Berger , Wei Liu , B. C. Low

We present a new method for determining the column density of erupting filament material using state-of-the-art multi-wavelength imaging data. Much of the prior work on filament/prominence structure can be divided between studies that use a…

太阳与恒星天体物理 · 物理学 2013-02-12 David R Williams , Deborah Baker , Lidia van Driel-Gesztelyi

We present observations and magnetic field modeling of the large polar crown prominence that erupted on 2010 December 6. Combination of SDO/AIA and STEREO$\_$Behind/EUVI allows us to see the fine structures of this prominence both at the…

太阳与恒星天体物理 · 物理学 2015-03-13 Yingna Su , Adriaan van Ballegooijen

Polar crown prominences are made of chromospheric plasma partially circling the Suns poles between 60 and 70 degree latitude. We aim to diagnose the 3D dynamics of a polar crown prominence using high cadence EUV images from the Solar…

太阳与恒星天体物理 · 物理学 2015-06-18 N. K. Panesar , D. E. Innes , D. J. Schmit , S. K. Tiwari

The volume of data being collected in solar physics has exponentially increased over the past decade and with the introduction of the $\textit{Daniel K. Inouye Solar Telescope}$ (DKIST) we will be entering the age of petabyte solar data.…

太阳与恒星天体物理 · 物理学 2019-07-10 John A. Armstrong , Lyndsay Fletcher
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