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One of the major discoveries of the Extreme ultraviolet Imaging Telescope (EIT) on SOHO were intensity enhancements propagating over a large fraction of the solar surface. The physical origin(s) of the so-called `EIT' waves is still…

Solar and Stellar Astrophysics · Physics 2015-05-13 S. Patsourakos , A. Vourlidas , Y. -M. Wang , G. Stenborg , A. Thernisien

Earth observation (EO) in open-world settings presents a unique challenge: different applications rely on diverse sensor modalities, each with varying ground sampling distances, spectral ranges, and numbers of spectral bands. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Zhitong Xiong , Yi Wang , Fahong Zhang , Adam J. Stewart , Joëlle Hanna , Damian Borth , Ioannis Papoutsis , Bertrand Le Saux , Gustau Camps-Valls , Xiao Xiang Zhu

Chinese Spectral Radio Heliograph (CSRH) is an advanced aperture synthesis solar radio heliograph, developed by National Astronomical Observatories, Chinese Academy of Sciences independently. It consists of 100 reflector antennas, which are…

Instrumentation and Methods for Astrophysics · Physics 2015-11-11 Sha Li , Yihua Yan , Zhijun Chen , Wei Wang , Donghao Liu

Understanding the initiation of solar flares and coronal mass ejections (CMEs) is essential for improving forecasts of extreme space weather. Soft X-ray (SXR) and Extreme Ultraviolet (EUV) observations provide critical diagnostics of the…

Accurate modeling of the Sun's coronal magnetic field and solar wind structures require inputs of the solar global magnetic field, including both the near and far sides, but the Sun's far-side magnetic field cannot be directly observed.…

Solar and Stellar Astrophysics · Physics 2023-01-04 Ruizhu Chen , Junwei Zhao , Shea Hess Webber , Yang Liu , J. Todd Hoeksema , Marc L. Derosa

Recently, several new solar radio telescopes have been put into operation and provided spectral-imaging observations with much higher resolutions in decimeter (dm) and centimeter (cm) wavelengths. These telescopes include the Mingantu…

Solar and Stellar Astrophysics · Physics 2023-11-27 Baolin Tan , Yihua Yan , Jing Huang , Yin Zhang , Chengming Tan , Xiaoshuai Zhu

Accurate measurements of statistical properties, such as the star formation rate and the lifetime of young stellar objects (YSOs) in different stages, is essential for constraining star formation theories. However, it is a difficult task to…

Solar and Stellar Astrophysics · Physics 2021-05-04 Yi-Lung Chiu , Chi-Ting Ho , Daw-Wei Wang , Shih-Ping Lai

We report commissioning observations of the Si X 1430 nm solar coronal line observed coronagraphically with the Cryogenic Near-Infrared Spectropolarimeter (Cryo-NIRSP) at the National Science Foundation's Daniel K. Inouye Solar Telescope…

Solar and Stellar Astrophysics · Physics 2024-02-16 T. A. Schad , A. Fehlmann , G. I. Dima , J. R. Kuhn , I. F. Scholl , D. Harrington , T. Rimmele , A. Tritschler , A. R. Paraschiv

The Hubble constant ($H_0$) is one of the fundamental parameters in cosmology, but there is a heated debate around the $>$4$\sigma$ tension between the local Cepheid distance ladder and the early Universe measurements. Strongly lensed Type…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-14 S. Huber , S. H. Suyu , D. Ghoshdastidar , S. Taubenberger , V. Bonvin , J. H. H. Chan , M. Kromer , U. M. Noebauer , S. A. Sim , L. Leal-Taixé

In June 2022, Gaia DR3 has provided the astronomy community with about one million spectra from the Radial Velocity Spectrometer (RVS) covering the CaII triplet region. However, one-third of the published spectra have 15<S/N<25 per pixel…

The JEM-EUSO program is focused on observations of Ultra High Energy Cosmic Rays (UHECRs) from space. For this purpose, a series of detectors based on multi-anode photomultiplier tubes with a time resolution of the order of $\mu$s have been…

Instrumentation and Methods for Astrophysics · Physics 2023-09-19 Zbigniew Plebaniak , Marika Przybylak

We consider the problem of estimating the directions of arrival (DOAs) of multiple sources from a single snapshot of an antenna array, a task with many practical applications. In such settings, the classical Bartlett beamformer is commonly…

Signal Processing · Electrical Eng. & Systems 2025-09-22 Lioz Berman , Sharon Gannot , Tom Tirer

In recent years (2000-2021), human-space activities have been increasing faster than ever. More than 36000 Earth' orbiting objects, all larger than 10 cm, in orbit around the Earth, are currently tracked by the European Space Agency (ESA).…

Space Physics · Physics 2023-07-12 S. Aljbaae , J. Murcia-Pineros , A. F. B. A. Prado , R. V. Moraes , V. Carruba , G. A. Carita

This first paper in a series describes the design of a study testing whether pre-appearance signatures of solar magnetic active regions were detectable using various tools of local helioseismology. The ultimate goal is to understand…

Solar and Stellar Astrophysics · Physics 2013-03-07 K. D. Leka , G. Barnes , A. C. Birch , I. Gonzalez-Hernandez , T. Dunn , B. Javornik , D. C. Braun

In addition to X-rays, extreme ultraviolet (EUV) rays radiated from solar flares can cause serious problems, such as communication failures and satellite drag. Therefore, methods for forecasting EUV dynamic spectra during flares are…

Solar and Stellar Astrophysics · Physics 2020-05-14 Toshiki Kawai , Shinsuke Imada , Shohei Nishimoto , Kyoko Watanabe , Tomoko Kawate

We have released an archive of all observational data of the VUV spectrometer Solar Ultraviolet Measurements of Emitted Radiation (SUMER) on SOHO that has been acquired until now. The operational phase started with 'first light'…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Werner Curdt , Dietmar Germerott , Klaus Wilhelm , Udo Schühle , Luca Teriaca , Davina Innes , Karine Bocchialini , Philippe Lemaire

Integration of intermittent renewable energy sources into electric grids in large proportions is challenging. A well-established approach aimed at addressing this difficulty involves the anticipation of the upcoming energy supply…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Quentin Paletta , Guillaume Arbod , Joan Lasenby

We present SDO/AIA observations of the interaction of a global EUV wave on 2011 June 7 with active regions (ARs), coronal holes (CHs) and coronal bright structures. The primary global wave has a three-dimensional dome shape, with…

Solar and Stellar Astrophysics · Physics 2015-06-03 Ting Li , Jun Zhang , Shuhong Yang , Wei Liu

The continuous stream of data available from the Atmospheric Imaging Assembly (AIA) telescopes onboard the Solar Dynamics Observatory (SDO) spacecraft has allowed a deeper understanding of the Sun. However, the sheer volume of data has…

Solar and Stellar Astrophysics · Physics 2015-06-19 David M. Long , D. Shaun Bloomfield , Peter T. Gallagher , David Pérez-Suárez
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