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The division of Gamma-ray bursts (GRBs) into different classes, other than the "short" and "long", has been an active field of research. We investigate whether GRBs can be classified based on a broader set of parameters, including prompt…

We present an enhanced method for the application of Gaussian Mixture Modelling (GMM) to the coherent WaveBurst (cWB) algorithm in the search for short-duration gravitational wave (GW) transients. The supervised Machine Learning method of…

广义相对论与量子宇宙学 · 物理学 2024-11-06 Leigh Smith , Sayantan Ghosh , Jiyoon Sun , V. Gayathri , Ik Siong Heng , Archana Pai

Gamma-ray bursts (GRBs) are generally classified as Type~I GRBs, which originate from compact binary mergers, and Type~II GRBs, which originate from massive collapsars. The traditional correspondence between short--Type~I GRBs and…

高能天体物理现象 · 物理学 2026-05-22 Si-Yuan Zhu , Pak-Hin Thomas Tam , Fu-Wen Zhang , Hui-Ying Deng , Bing Zhang

Compact object mergers are multi-messenger sources and progenitors of some gamma-ray bursts (GRBs), primarily understood by gamma-ray observations, while poorly constrained in the prompt low-energy phase. A long-lasting X-ray emission was…

Gamma-ray bursts (GRBs) are generally believed to originate from two distinct progenitors, compact binary mergers and massive collapsars. Traditional and some recent machine learning-based classification schemes predominantly rely on…

高能天体物理现象 · 物理学 2025-10-22 Si-Yuan Zhu , Lang Shao , Pak-Hin Thomas Tam , Fu-Wen Zhang

We introduce deep learning time-series forecasting for gravitational wave detection of binary neutron star mergers. This method enables the identification of these signals in real advanced LIGO data up to 30 seconds before merger. When…

广义相对论与量子宇宙学 · 物理学 2021-03-09 Wei Wei , E. A. Huerta

Inspiraling and merging binary neutron stars are not only important source of gravitational waves, but also promising candidates for coincident electromagnetic counterparts. These systems are thought to be progenitors of short gamma-ray…

高能天体物理现象 · 物理学 2017-11-03 Milton Ruiz , Stuart L. Shapiro

Long gamma-ray bursts (GRBs) associated with supernovae and short GRBs with Extended Emission (SGRBEE) from mergers are probably powered by black holes as a common inner engine, as their prompt GRB emission satisfies the same Amati…

高能天体物理现象 · 物理学 2015-09-09 Maurice H. P. M. van Putten

The recent detection of gravitational waves and electromagnetic counterparts from the double neutron star merger event GW+EM170817, supports the standard paradigm of short gamma-ray bursts (SGRBs) and kilonovae/macronovae. It is important…

The short Gamma Ray Bursts (GRBs) are the aftermath of the merger of binary compact objects (neutron star -- neutron star or neutron star -- black hole systems). With the simultaneous detection of Gravitational Wave (GW) signal from GW…

高能天体物理现象 · 物理学 2024-01-23 Ankur Ghosh , Kuntal Misra , C. S. Vaishnava , L. Resmi , K. G. Arun , Amitesh Omar , Dimple , N. K. Chakradhari

Future space-based laser interferometric detectors, such as LISA, will be able to detect gravitational waves (GWs) generated during the inspiral phase of stellar-mass binary black holes (SmBBHs). The detection and characterization of GWs…

天体物理仪器与方法 · 物理学 2025-02-04 Yao Fu , Yan Wang , Soumya D. Mohanty

The present common view about GRB origin is related to cosmology, what is based on statistical analysis, and on measurements of the redshifts in the GRB optical afterglows of long GRB. Models of radiation, and models of the central machine…

天体物理学 · 物理学 2008-11-26 G. S. Bisnovatyi-Kogan

The Laser Interferometer Space Antenna is expected to observe gravitational waves from massive black hole binaries across cosmic time. Many are anticipated to be detectable hours to weeks before coalescence. We present a fast algorithm for…

天体物理仪器与方法 · 物理学 2026-02-20 Francesco Nobili , Malvina Bellotti , Riccardo Buscicchio , Massimo Dotti , Alessandro Lupi

The most promising candidate for short-duration gamma-ray bursts (GRBs) is the merger of two neutron stars (NSs), which produces kilonovae (KNe) in the aftermath. This merging can result in a fast-spinning, highly magnetic NS, known as a…

高能天体物理现象 · 物理学 2026-05-29 Nissim Fraija

We describe Glowbug, a gamma-ray telescope for bursts and other transients in the 30 keV to 2 MeV band. It was recently selected for funding by the NASA Astrophysics Research and Analysis program, with an expected launch in the early 2020s.…

The mergers of neutron star-neutron star and neutron star-black hole binaries are the most promising gravitational wave events with electromagnetic counterparts. The rapid detection, localization and simultaneous multi-messenger follow-up…

广义相对论与量子宇宙学 · 物理学 2023-12-07 Chayan Chatterjee , Manoj Kovalam , Linqing Wen , Damon Beveridge , Foivos Diakogiannis , Kevin Vinsen

Low-latency detections of gravitational waves (GWs) are crucial to enable prompt follow-up observations to astrophysical transients by conventional telescopes. We have developed a low-latency pipeline using a technique called Summed…

天体物理仪器与方法 · 物理学 2017-02-09 Xiangyu Guo , Qi Chu , Shin Kee Chung , Zhihui Du , Linqing Wen

We developed a GPU based single-pulse search pipeline (GSP) with candidate-archiving database. Largely based upon the infrastructure of Open source pulsar search and analysis toolkit (PRESTO), GSP implements GPU acceleration of the…

天体物理仪器与方法 · 物理学 2022-01-19 Shanping You , Pei Wang , Xuhong Yu , Xiaoyao Xie , Di Li , Zhijie Liu , Zhichen Pan , Youling Yue , Lei Qian , Bin Zhang , Zonghao Chen

The detection of GW170817/GRB170817A implied the strong association between short gamma-ray bursts (SGRBs) and binary neutron star (BNS) mergers which produce gravitational waves (GWs). More evidence is needed to confirm the association and…

The light curves of Gamma-Ray Bursts (GRBs) are believed to result from internal shocks reflecting the activity of the GRB central engine. Their temporal deconvolution can reveal potential differences in the properties of the central…