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Solar radio type II bursts serve as early indicators of incoming geo-effective space weather events such as coronal mass ejections (CMEs). In order to investigate the origin of high-frequency type II bursts (HF type II bursts), we have…

The DISTO collaboration has built a large-acceptance magnetic spectrometer designed to provide broad kinematic coverage of multi-particle final states produced in $pp$ scattering. The spectrometer has been installed in the polarized proton…

高能物理 - 实验 · 物理学 2012-08-27 The DISTO Collaboration

ClusterPyXT is a new software pipeline to generate spectral temperature, X-ray surface brightness, pressure, and density maps from X-ray observations of galaxy clusters. These data products help elucidate the physics of processes occurring…

高能天体物理现象 · 物理学 2019-06-07 Brian Alden , Eric J. Hallman , David Rapetti , Jack O. Burns , Abhirup Datta

The interpretation of solar radio bursts observed by Parker Solar Probe (PSP) in the encounter phase plays a key role in understanding intrinsic properties of the emission mechanism in the solar corona. Lower time-frequency resolution of…

太阳与恒星天体物理 · 物理学 2021-12-22 Aleksander A. Stanislavsky , Igor N. Bubnov , Artem A. Koval , Serge N. Yerin

Asteroseismology is an exceptional tool for studying stars by using the properties of observed modes of oscillation. So far the process of performing an asteroseismic analysis of a star has remained somewhat esoteric and inaccessible to…

Gravitational waves in the sensitivity band of ground-based detectors can be emitted by a number of astrophysical sources, including not only binary coalescences, but also individual spinning neutron stars. The most promising signals from…

广义相对论与量子宇宙学 · 物理学 2021-04-08 David Keitel , Rodrigo Tenorio , Gregory Ashton , Reinhard Prix

In this work we simulate the $50-200$ MHz radio sky that is constrained in the field of view ($5^{\circ}$ radius) of the 21 Centimeter Array (21CMA), by carrying out Monte-Carlo simulations to model redshifted cosmological reionization…

宇宙学与河外天体物理 · 物理学 2015-05-19 Jingying Wang , Haiguang Xu , Junhua Gu , Tao An , Haijuan Cui , Jianxun Li , Zhongli Zhang , Qian Zheng , Xiang-Ping Wu

We have studied low-frequency (45 - 410 MHz) type III solar radio bursts observed using the e-CALLISTO spectrometer located at Gauribidanur radio observatory, India during 2013 - 2017. After inspecting the 1531 type III bursts we found that…

太阳与恒星天体物理 · 物理学 2021-06-22 Mahender Aroori , K. Sasikumar Raja , R. Ramesh , Vemareddy Panditi , Christian Monstein , Yellaiah Ganji

This paper describes the design and implementation of Stingray, a library in Python built to perform time series analysis and related tasks on astronomical light curves. Its core functionality comprises a range of Fourier analysis…

天体物理仪器与方法 · 物理学 2019-08-12 D. Huppenkothen , M. Bachetti , A. L. Stevens , S. Migliari , P. Balm , O. Hammad , U. M. Khan , H. Mishra , H. Rashid , S. Sharma , R. V. Blanco , E. M. Ribeiro

We describe a new software package for simulating channelised, high-time resolution data streams from radio telescopes. The software simulates data from the telescope and observing system taking into account the observation strategy,…

Calysto Scheme is written in Scheme in Continuation-Passing Style, and converted through a series of correctness-preserving program transformations into Python. It has support for standard Scheme functionality, including call/cc, as well as…

编程语言 · 计算机科学 2023-10-24 Douglas S. Blank , James B. Marshall

Every 11 years, the Sun goes through periods of activity, with the occurrence of many solar flares and mass ejections, both energetic phenomena of magnetic origin. Due to its effects on Earth, the study of solar activity is of paramount…

太阳与恒星天体物理 · 物理学 2023-09-14 Vanessa Lessa , Adriana Valio

Solar radio bursts are some of the brightest emissions at radio frequencies in the solar system. The emission mechanisms that generate these bursts offer a remote insight into physical processes in solar coronal plasma, while fine spectral…

太阳与恒星天体物理 · 物理学 2024-01-10 Pearse C. Murphy , Baptiste Cecconi , Carine Briand , Stéphane Aicardi

Stellar atmosphere modelling predicts the luminosity and temperature of a star, together with parameters such as the effective gravity and the metallicity, by reproducing the observed spectral energy distribution. Most observational data…

天体物理仪器与方法 · 物理学 2024-02-21 Iain McDonald , Albert A. Zijlstra , Nick L. J. Cox , Emma L. Alexander , Alexander Csukai , Ria Ramkumar , Alexander Hollings

Solar radio observation is a method used to study the Sun. It is very important for space weather early warning and solar physics research to automatically classify solar radio spectrums in real time and judge whether there is a solar radio…

天体物理仪器与方法 · 物理学 2025-02-07 Jian Chen , Guowu Yuan , Hao Zhou , Chengming Tan , Lei Yang , Siqi Li

A large amount of data is produced every second from modern information systems such as mobile devices, the world wide web, Internet of Things, social media, etc. Analysis and mining of this massive data requires a lot of advanced tools and…

机器学习 · 计算机科学 2020-01-13 Rising Odegua , Festus Ikpotokin

Spectropolarimetry, the observation of polarization and intensity as a function of wavelength, is a powerful tool in stellar astrophysics. It is particularly useful for characterizing stars and circumstellar material, and for tracing the…

The observation and research of the solar radio emission have unique scientific values in solar and space physics and related space weather forecasting applications, since the observed spectral structures may carry important information…

天体物理仪器与方法 · 物理学 2017-09-20 Qing-Fu Du , Lei Chen , Yue-Chang Zhao , Xin Li , Yan Zhou , Jun-Rui Zhang , Fa-Bao Yan , Shi-Wei Feng , Chuan-Yang Li , Yao Chen