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Neutron stars provide a unique laboratory for studying matter at extreme pressures and densities. While there is no direct way to explore their interior structure, X-rays emitted from these stars can indirectly provide clues to the equation…

High Energy Astrophysical Phenomena · Physics 2023-02-15 Delaney Farrell , Pierre Baldi , Jordan Ott , Aishik Ghosh , Andrew W. Steiner , Atharva Kavitkar , Lee Lindblom , Daniel Whiteson , Fridolin Weber

New-generation radio telescopes like LOFAR are conducting extensive sky surveys, detecting millions of sources. To maximise the scientific value of these surveys, radio source components must be properly associated into physical sources…

We have developed a lightweight tool, {\tt RapidGBM}, featuring a web-based interface and capabilities of rapid calculation of Fermi Gamma-ray Burst Monitor (GBM) visibilities and performance of basic data analysis. It has two key features:…

The increasing volume of gamma-ray data demands new analysis approaches that can handle large-scale datasets while providing robustness for source detection. We present a Deep Learning (DL) based pipeline for detection, localization, and…

X-ray free-electron lasers are sources of coherent, high-intensity X-rays with numerous applications in ultra-fast measurements and dynamic structural imaging. Due to the stochastic nature of the self-amplified spontaneous emission process…

We discuss the localization of radiation sources whose number and other relevant parameters are not known in advance. The data collection is ensured by an autonomous mobile robot that performs a survey in a defined region of interest…

Robotics · Computer Science 2023-09-28 Tomas Lazna , Ludek Zalud

In the coming years, next-generation space-based infrared observatories will significantly increase our samples of rare massive stars, representing a tremendous opportunity to leverage modern statistical tools and methods to test massive…

Solar and Stellar Astrophysics · Physics 2021-06-02 Trevor Z. Dorn-Wallenstein , James R. A. Davenport , Daniela Huppenkothen , Emily M. Levesque

Fast X-ray Transients (FXTs) are extragalactic bursts of soft X-rays first identified >10 years ago. Since then, nearly 40 events have been discovered, although almost all of these have been recovered from archival Chandra and XMM-Newton…

The X-ray Integral Field Unit (X-IFU) is the high resolution X-ray spectrometer of ESA's Athena X-ray observatory. It will deliver X-ray data in the 0.2-12 keV band with an unprecedented spectral resolution of 2.5 eV up to 7 keV. During the…

Instrumentation and Methods for Astrophysics · Physics 2022-08-03 E. S. Kammoun , D. Barret , P. Peille , R. Willingale , T. Dauser , J. Wilms , M. Guainazzi , J. M. Miller

The sensitivity of astronomical X-ray detectors is limited by the instrumental background. The background is especially important when observing low surface brightness sources that are critical for many of the science cases targeted by…

Instrumentation and Methods for Astrophysics · Physics 2022-08-18 D. R. Wilkins , S. W. Allen , E. D. Miller , M. Bautz , T. Chattopadhyay , R. Foster , C. E. Grant , S. Hermann , R. Kraft , R. G. Morris , P. Nulsen , G. Schellenberger

Large modern surveys require efficient review of data in order to find transient sources such as supernovae, and to distinguish such sources from artefacts and noise. Much effort has been put into the development of automatic algorithms,…

Chest radiography is the most common medical image examination for screening and diagnosis in hospitals. Automatic interpretation of chest X-rays at the level of an entry-level radiologist can greatly benefit work prioritization and assist…

Image and Video Processing · Electrical Eng. & Systems 2020-08-11 Sandesh Ghimire , Satyananda Kashyap , Joy T. Wu , Alexandros Karargyris , Mehdi Moradi

We construct simulated galaxy data sets based on the High Energy X-ray Probe (HEX-P) mission concept to demonstrate the significant advances in galaxy science that will be yielded by the HEX-P observatory. The combination of high spatial…

A large number of unidentified sources found by astronomical surveys and other observations necessitate the use of an automated classification technique based on machine learning methods. The aim of this paper is to find a suitable…

High Energy Astrophysical Phenomena · Physics 2023-02-20 Shivam Kumaran , Samir Mandal , Sudip Bhattacharyya , Deepak Mishra

Since 2008 August the Fermi Large Area Telescope (LAT) has provided continuous coverage of the gamma-ray sky yielding more than 5000 gamma-ray sources, but 54% of the detected sources remain with no certain or unknown association with a low…

High Energy Astrophysical Phenomena · Physics 2020-12-01 Chiaro G. , Kovacevic M. , La Mura G

Ly$\alpha$ emission is a standard tracer of starburst galaxies at high redshift. However, a number of local Ly$\alpha$ emitters (LAEs) are X-ray sources, suggesting a possible origin of Ly$\alpha$ photons other than young, hot stars, and…

Astrophysics of Galaxies · Physics 2020-02-26 B. Dittenber , M. S. Oey , E. Hodges-Kluck , E. Gallo , M. Hayes , G. Oestlin , J. Melinder

The Lobster Eye Imager for Astronomy (LEIA), a pathfinder of the Wide-field X-ray Telescope of the Einstein Probe (EP) mission, was successfully launched onboard the SATech-01 satellite of the Chinese Academy of Sciences on 27 July 2022. In…

Instrumentation and Methods for Astrophysics · Physics 2023-08-02 Z. X. Ling , X. J. Sun , C. Zhang , S. L. Sun , G. Jin , S. N. Zhang , X. F. Zhang , J. B. Chang , F. S. Chen , Y. F. Chen , Z. W. Cheng , W. Fu , Y. X. Han , H. Li , J. F. Li , Y. Li , Z. D. Li , P. R. Liu , Y. H. Lv , X. H. Ma , Y. J. Tang , C. B. Wang , R. J. Xie , Y. L. Xue , A. L. Yan , Q. Zhang , C. Y. Bao , H. B. Cai , H. Q. Cheng , C. Z. Cui , Y. F. Dai , D. W. Fan , H. B. Hu , J. W. Hu , M. H. Huang , Z. Q. Jia , C. C. Jin , D. Y. Li , J. Q. Li , H. Y. Liu , M. J. Liu , Y. Liu , H. W. Pan , Y. L. Qiu , M. Sugizaki , H. Sun , W. X. Wang , Y. L. Wang , Q. Y. Wu , X. P. Xu , Y. F. Xu , H. N. Yang , X. Yang , B. Zhang , M. Zhang , W. D. Zhang , Z. Zhang , D. H. Zhao , X. Q. Cong , B. W. Jiang , L. H. Li , X. B. Qiu , J. N. Sun , D. T. Su , J. Wang , C. Wu , Z. Xu , X. M. Yang , S. K. Zhang , Z. Zhang , N. Zhang , Y. F. Zhu , H. Y. Ban , X. Z. Bi , Z. M. Cai , W. Chen , X. Chen , Y. H. Chen , Y. Cui , X. L. Duan , Z. G Feng , Y. Gao , J. W. He , T. He , J. J. Huang , F. Li , J. S. Li , T. J. Li , T. T. Li , H. Q. Liu , L. Liu , R. Liu , S. Liu , N. Meng , Q. Shi , A. T. Sun , Y. M. Wang , Y. B. Wang , H. C. Wu , D. X Xu , Y. Q Yang , Y. Yang , X. S. Yu , K. X. Zhang , Y. L. Zhang , Y. H. Zhang , Y. T. Zhang , H. Zhou , X. C. Zhu , J. S. Cheng , L. Qin , L. Wang , Q. L. Wang , M. Bai , R. L. Gao , Z. Ji , Y. R. Liu , F. L. Ma , Y. J. Shi , J. Su , Y. Y. Tan , J. Z. Tong , H. T. Xu , C. B. Xue , G. F. Xue , W. Yuan

EP J171159.4-333253 is a new neutron-star low-mass X-ray binary discovered in outburst by the Einstein Probe (EP) on 2025 June 23, exhibiting clocked type-I X-ray bursts, eclipses and dips. In this paper, we report on the results of the…

The 100-m X-ray Test Facility of the Institute of High Energy Physics (IHEP) was initially proposed in 2012 for the test and calibration of the X-ray detectors of the Hard X-ray Modulation Telescope (HXMT) with the capability to support…

Instrumentation and Methods for Astrophysics · Physics 2022-10-31 Yusa Wang , Zijian Zhao , Dongjie Hou , Xiongtao Yang , Can Chen , Xinqiao Li , Yuxuan Zhu , Xiaofan Zhao , Jia Ma , He Xu , Yupeng Chen , Guofeng Wang , Fangjun Lu , Shuangnan Zhang , Shu Zhang , Yong Chen , Yupeng Xu

Searching for planets analogous to Earth in terms of mass and equilibrium temperature is currently the first step in the quest for habitable conditions outside our Solar System and, ultimately, the search for life in the universe. Future…

Earth and Planetary Astrophysics · Physics 2025-04-11 Jeanne Davoult , Romain Eltschinger , Yann Alibert