中文
相关论文

相关论文: A Radio Burst Detection Method Based on the Hough …

200 篇论文

The dispersion of fast radio bursts (FRBs) is a measure of the large-scale electron distribution. It enables measurements of cosmological parameters, especially of the expansion rate and the cosmic baryon fraction. The number of events is…

宇宙学与河外天体物理 · 物理学 2023-07-19 Robert Reischke , Steffen Hagstotz

This paper presents the non-homogeneous Poisson process (NHPP) for modeling the rate of fast radio bursts (FRBs) and other infrequently observed astronomical events. The NHPP, well-known in statistics, can model changes in the rate as a…

高能天体物理现象 · 物理学 2017-09-06 Earl Lawrence , Scott Vander Wiel , Casey J. Law , Sarah Burke Spolaor , Geoffrey C. Bower

Fast radio bursts (FRBs), millisecond-duration radio transient events, possess the potential to serve as excellent cosmological probes. The FRB redshift distribution contains information about the FRB sources, providing key constraints on…

宇宙学与河外天体物理 · 物理学 2025-03-25 Hui Peng , Yu Yu

Fast Radio Bursts are millisecond bursts of radio radiation at frequencies of about 1 GHz, recently discovered in pulsar surveys. They have not yet been definitively identified with any other astronomical object or phenomenon. The bursts…

高能天体物理现象 · 物理学 2016-05-10 J. I. Katz

Fast Radio Bursts (FRBs) have become an indispensable tool for studying the Universe's ionisation properties, as well as its cosmological parameters. This is achieved by analysing their diffuse dispersion measure (${\rm DM}_{\rm diff}$) as…

高能天体物理现象 · 物理学 2025-12-03 Marios Kalomenopoulos , Jiaming Zhuge

Fast Radio Bursts (FRBs) are short duration highly energetic dispersed radio pulses. We developed a generic formalism (Bera {\em et al.}, 2016) to estimate the FRB detection rate for any radio telescope with given parameters. By using this…

高能天体物理现象 · 物理学 2018-12-24 Siddhartha Bhattacharyya

Fast radio bursts (FRBs) can be used to measure cosmological parameters by employing the Macquart relation. However, at present, only a small number of FRB events are localized to host galaxies with known redshifts. Inspired by the dark…

宇宙学与河外天体物理 · 物理学 2024-04-26 Ze-Wei Zhao , Ji-Guo Zhang , Yichao Li , Jing-Fei Zhang , Xin Zhang

The search of fast radio burst (FRB) is a hot topic in current radio astronomy study. In this work, we carry out single pulse search for a VLBI pulsar observation data set using both auto spectrum and cross spectrum search method. The cross…

天体物理仪器与方法 · 物理学 2018-06-13 Lei Liu , Weimin Zheng , Zhen Yan , Juan Zhang

Fast radio bursts (FRBs) probe the electron column density along the line of sight and hence can be used to probe foreground structures. One such structure is the Galactic halo. In this work, we use a total of 98 high Galactic latitude…

星系天体物理 · 物理学 2026-01-12 Jordan Hoffmann , Clancy James , Jason Xavier Prochaska , Marcin Glowacki

FRB 121102 is the only known repeating fast radio burst source. Here we analyze a wide-frequency-range (1-8 GHz) sample of high-signal-to-noise, coherently dedispersed bursts detected using the Arecibo and Green Bank telescopes. These…

We present DM-power, a new method for precisely determining the dispersion measure (DM) of radio bursts, and apply it to the Fast Radio Burst (FRB) source FRB~20180916B. Motivated by the complex structure on multiple time scales seen in…

We present projected Fast Radio Burst detection rates from surveys carried out using a set of hypothetical close-packed array telescopes. The cost efficiency of such a survey falls at least as fast as the inverse square of the survey…

天体物理仪器与方法 · 物理学 2020-01-22 Jeffrey B Peterson , Kevin Bandura , Pranav Sanghavi

The dispersion measure-redshift relation of fast radio bursts (FRBs) provides a valuable cosmological probe for constraining the Hubble constant, offering an independent measurement that could help resolve the ongoing Hubble tension. In…

宇宙学与河外天体物理 · 物理学 2025-07-28 Chenyuan Xu , Yi Feng , Jiaying Xu

The total event number of fast radio bursts (FRBs) is accumulating rapidly with the improvement of existing radio telescopes and the completion of new facilities. Especially, the Five-hundred-meter Aperture Spherical radio Telescope (FAST)…

高能天体物理现象 · 物理学 2022-01-12 Di Xiao , Zi-Gao Dai

Fast radio bursts (FRBs) are transient radio signals of extragalactic origins that are subjected to propagation effects such as dispersion and scattering. It follows then that these signals hold information regarding the medium they have…

We present a spectro-temporal analysis of 137 fast radio bursts (FRBs) from the first CHIME/FRB baseband catalog, including 125 one-off bursts and 12 repeat bursts, down to microsecond resolution using the least-squares optimization fitting…

Recently, we developed effective fly-by (EFB) waveforms designed to model the burst of gravitational radiation from highly eccentric binaries. We here present a faster to evaluate frequency domain EFB waveform. The waveform is constructed…

广义相对论与量子宇宙学 · 物理学 2021-08-17 Nicholas Loutrel

The detection of spatially-varying blur without having any information about the blur type is a challenging task. In this paper, we propose a novel effective approach to address the blur detection problem from a single image without…

计算机视觉与模式识别 · 计算机科学 2017-04-13 S. Alireza Golestaneh , Lina J. Karam

It is convenient to calibrate time-of-flight cameras by established methods, using images of a chequerboard pattern. The low resolution of the amplitude image, however, makes it difficult to detect the board reliably. Heuristic detection…

计算机视觉与模式识别 · 计算机科学 2020-12-18 Miles Hansard , Radu Horaud , Michel Amat , Georgios Evangelidis