Results 61 to 70 of about 1,965,723 (227)

A low cost steerable radio-telescope

, 2003
We present the technical characteristics of a low-cost radio telescope for solar/non solar observations at decimetric (1200–1700 MHz) and centimetric (2700 and 5000 MHz) wavelengths known as Brazilian Decimetric Array (BDA).
Saito, J. H., Botti, L. C. L., Faria, C., Lüdke, E., Ananthakrishnan, S., Cecatto, J. R., Rosa, R. R., Subramanian, K. R., Fernandes, F. C. R., Andrade, M. C., Stephany, S., Sawant, H. S., Swarup, G., Moron, C. E., Neri, J. A. C. F., Ramesh, R., Sankararaman, M. R., Alonso, E. M. B., Sundararajan, M. S., Boas, J. W. V.   +19 more
core   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Radio Frequency Interference Monitoring at Sardinia Radio Telescope [PDF]

, 2018
Radio frequency interference monitoring is a crucial task to protect the radio astronomical observations from artificial signals. This task started at the Sardinia Radio Telescope in the early 2000s and still successfully continues by monitoring the ...
BOLLI, Pietro, SERRA, Giampaolo, GAUDIOMONTE, Francesco, P. Bolli, G. Serra, F. Gaudiomonte   +5 more
core   +1 more source

The Chinese Radio Telescope Array for Interplanetary Scintillation Monitoring

Space Weather
Solar flares, coronal mass ejections (CMEs) and enegertic particles, etc., are the driving sources that may cause catastrophic space weathers. It is desirable to obtain information of solar eruptions like flares and CMEs, etc., propagating from the Sun ...
Yihua Yan, Wei Wang, Jin Fan, Ming Xiong, Zhijun Chen, Linjie Chen, Cang Su, Sha Li, Jun Cheng, Jing Du, Xueshang Feng   +10 more
doaj   +1 more source

The Sun Service KRIM - diagnostic complex of solar activity [PDF]

ITM Web of Conferences, 2019
The radio astronomical diagnostic complex of solar activity, created on the basis of the radio telescope RT-22 and three small radiotelescopes united in the Sun Service KRIM located in coordinates longitude 33° 59' 30" latitude 44° 23' 52", conducts ...
Volvach Alexander, Gopasyuk Olga, Yakubovskaya Inna   +2 more
doaj   +1 more source

Statistical Analysis of the Equatorward UV Auroral Emissions of the Jovian Southern Hemisphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract This study presents a comprehensive statistical analysis of Jupiter's southern UV auroral emissions, with a focus on the secondary oval and equatorward injection signatures. Utilizing Hubble Space Telescope (HST) data, the frequency, location, and intensity of these auroral features are systematically evaluated, considering their variation ...
Diego Moral‐Pombo, Sarah V. Badman, Licia C. Ray   +2 more
wiley   +1 more source

Solar observation with MeerKAT: demonstration of technical readiness and initial science highlights

Frontiers in Astronomy and Space Sciences
Solar radio emissions offer unique diagnostic insights into the solar corona. However, their dynamic and multiscale nature, along with several orders of magnitude variations in intensity, pose significant observational challenges.
Devojyoti Kansabanik, Devojyoti Kansabanik, Marcel Gouws, Deepan Patra, Angelos Vourlidas, Pieter Kotzé, Pieter Kotzé, Divya Oberoi, Shaheda Begum Shaik, Shaheda Begum Shaik, Sarah Buchner, Fernando Camilo   +11 more
doaj   +1 more source

Drift Echoes at Geostationary Orbit: An Eight‐Year Climatology From GOES‐16

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract Drift echoes are energy‐dispersed recurrences in energetic particle flux that appear when a localized injection or compression organizes trapped ions and electrons according to their azimuthal drift. Although established as tracers of radiation‐belt dynamics, drift echoes have rarely been surveyed statistically at geostationary orbit. We apply
Fadil Inceoglu, Juan V. Rodriguez, Brian T. Kress   +2 more
wiley   +1 more source

Fine Structures of Radio Bursts from Flare Star AD Leo with FAST Observations

The Astrophysical Journal, 2023
Radio bursts from nearby active M-dwarfs have been frequently reported and extensively studied in solar or planetary paradigms. Whereas, their substructures or fine structures remain rarely explored despite their potential significance in diagnosing the ...
Jiale Zhang, Hui Tian, Philippe Zarka, Corentin K. Louis, Hongpeng Lu, Dongyang Gao, Xiaohui Sun, Sijie Yu, Bin Chen, Xin Cheng, Ke Wang   +10 more
doaj   +1 more source

Reconstruction of Chorus Wave Amplitude Profiles by Incorporating Electron Fluxes Into a Machine Learning Framework

Space Weather, Volume 24, Issue 10, October 2026.
Abstract Chorus waves, typically excited by anisotropic electrons with energies from hundreds of eV to tens of keV, play a critical role in the dynamics of Earth's outer radiation belt. Previous chorus wave models are commonly driven by geomagnetic indices and solar wind parameters, which capture large‐scale activity but may not fully reproduce ...
Weixin Chen, Song Fu, Binbin Ni, Yibo Zhao, Yuan Lei, Xiangyuan Tong, Xiaotong Yun, Xin Ma, Qiongyue Zhang, Jianhang Wang, Kunkun Xia   +10 more
wiley   +1 more source