English
Related papers

Related papers: SMART/SDDI Filament Disappearance Catalogue

200 papers

The Carte Synoptique catalogue of solar filaments from March 1919 to December 1989, corresponding to complete cycles 16 to 21 is utilized to show latitudinal migration of filaments at low latitudes (less than 50 deg), and the latitudinal…

Solar and Stellar Astrophysics · Physics 2015-05-18 K. J. Li

We present a set of tools for detecting small-scale solar magnetic cancellations and the disk counterpart of type II spicules (the so-called Rapid Blueshifted Excursions (RBEs)), using line-of-sight photospheric magnetograms and…

Solar and Stellar Astrophysics · Physics 2015-01-07 Xin Chen , Na Deng , Derek A. Lamb , Ju Jing , Chang Liu , Rui Liu , Sung-Hong Park , Haimin Wang

The spatial properties of the solar magnetic field are crucial to decoding the physical processes in the solar interior and their interplanetary effects. However, observations from older instruments, such as the Michelson Doppler Imager…

Solar and Stellar Astrophysics · Physics 2025-06-11 Francesco Pio Ramunno , Paolo Massa , Vitaliy Kinakh , Brandon Panos , André Csillaghy , Slava Voloshynovskiy

We present a multi-wavelength catalog in the Subaru-XMM Deep Field (SXDF) as part of the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH). We include the newly acquired optical data from the Hyper-Suprime Cam Subaru Strategic…

In this dataset we provide a comprehensive collection of magnetograms (images quantifying the strength of the magnetic field) from the National Aeronautics and Space Administration's (NASA's) Solar Dynamics Observatory (SDO). The dataset…

Solar and Stellar Astrophysics · Physics 2024-02-13 Laura E. Boucheron , Ty Vincent , Jeremy A. Grajeda , Ellery Wuest

We developed a method to automatically detect and trace solar filaments in H\alpha\ full-disk images. The program is able not only to recognize filaments and determine their properties, such as the position, the area, the spine, and other…

Solar and Stellar Astrophysics · Physics 2015-06-15 Qi Hao , Cheng Fang , P. F. Chen

The Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) provides a new tool for the systematic observation of white-light flares, including Doppler and magnetic information as well as continuum. In our…

Solar and Stellar Astrophysics · Physics 2013-07-22 J. C. Martínez Oliveros , C. Lindsey , H. S. Hudson , J. C. Buitrago Casas

We investigate the effects of the evolutionary processes in the internal magnetic structure of two interplanetary coronal mass ejections (ICMEs) detected in situ between 2020 November 29 and December 1 by Parker Solar Probe (PSP). The…

We study the influence of the large-scale interplanetary magnetic field configuration on the solar energetic particles (SEPs) as detected at different satellites near Earth and on the correlation of their peak intensities with the parent…

Solar and Stellar Astrophysics · Physics 2014-03-05 R. Miteva , K. -L. Klein , O. Malandraki , G. Dorrian

[Abridged] A specialized data mining algorithm has been developed using wide-field photometry catalogues, enabling systematic and efficient searches for resolved, extremely low surface brightness satellite galaxies in the halo of the Milky…

Astrophysics · Physics 2009-11-13 Shane Walsh , Beth Willman , Helmut Jerjen

The solar spectral irradiance (SSI) depicts the spectral distribution of solar energy flux reaching the top of the Earth's atmosphere. Daily SSI measurements constitute a matrix with spectrally (rows) and temporally (columns) resolved solar…

Applications · Statistics 2026-05-21 Yuxuan Ke , Xianglei Huang , Odele Coddington , Yang Chen

Solar flares and coronal mass ejections (CMEs) are among the most energetic phenomena in the solar system, often impacting space weather and terrestrial technologies. In this study, we utilize SunPy, an open-source Python library for solar…

Solar and Stellar Astrophysics · Physics 2026-01-12 Akash Vinod Shirke , Sakshi Sheshrao Charde , Balendra Pratap Singh

Spotless days (SLDs) as well as CMEs in the decay phase of the solar cycle are believed to be a good predictor of the forthcoming cycle. A sequential increase in SLDs is observed since cycle 21, and cycle 24 has the highest number of SLDs…

Solar and Stellar Astrophysics · Physics 2025-07-08 Dipali Burud , Rajmal Jain , Arun K. Awasthi , N. Gopalswamy

Solar flares result from the rapid conversion of stored magnetic energy within the Sun's corona. These energy releases are associated with coronal magnetic loops, which are rooted in dense photospheric plasma and are passively transported…

Solar and Stellar Astrophysics · Physics 2025-03-28 M. Berretti , S. Mestici , L. Giovannelli , D. Del Moro , M. Stangalini , F. Giannattasio , F. Berrilli

Coronal mass ejections (CMEs) are huge expulsions of magnetized matter from the Sun and stars, traversing space with speeds of millions of kilometers per hour. Solar CMEs can cause severe space weather disturbances and consumer power…

Solar and Stellar Astrophysics · Physics 2021-10-26 Astrid M. Veronig , Petra Odert , Martin Leitzinger , Karin Dissauer , Nikolaus C. Fleck , Hugh S. Hudson

Filaments are omnipresent features in the solar atmosphere. Their location, properties and time evolution can provide information about changes in solar activity and assist the operational space weather forecast. Therefore, filaments have…

Sun-as-a-star analyses, in which observational data is spatially integrated, are useful for interpreting stellar data. For future applications to stellar observations, we performed Sun-as-a-star analyses of H$\alpha$ spectra for various…

Solar and Stellar Astrophysics · Physics 2022-11-16 Takato Otsu , Ayumi Asai , Kiyoshi Ichimoto , Takako T. Ishii , Kosuke Namekata

Given the rarity of significant solar flares compared to smaller ones, training effective machine learning models for solar activity forecasting is challenging due to insufficient data. This study proposes using generative deep learning…

Solar and Stellar Astrophysics · Physics 2024-04-04 Francesco P. Ramunno , S. Hackstein , V. Kinakh , M. Drozdova , G. Quetant , A. Csillaghy , S. Voloshynovskiy

Eruptions of coronal mass ejections (CMEs) from the Sun are usually associated with a number of signatures that can be identified in solar disc imagery. However, there are cases in which a CME that is well observed in coronagraph data is…