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The sensitivity of wide-parameter-space searches for continuous gravitational waves (CWs) is limited by their high computational cost. Deep learning is being studied as an alternative method to replace various aspects of a CW search. In…

广义相对论与量子宇宙学 · 物理学 2025-01-24 Prasanna Mohan Joshi , Reinhard Prix

The sensitivity of wide-parameter-space searches for continuous gravitational waves is limited by computational cost. Recently it was shown that Deep Neural Networks (DNNs) can perform all-sky searches directly on (single-detector) strain…

广义相对论与量子宇宙学 · 物理学 2020-07-15 Christoph Dreissigacker , Reinhard Prix

The high computational cost of wide-parameter-space searches for continuous gravitational waves (CWs) significantly limits the achievable sensitivity. This challenge has motivated the exploration of alternative search methods, such as deep…

广义相对论与量子宇宙学 · 物理学 2023-10-11 Prasanna M. Joshi , Reinhard Prix

We present a convolutional neural network that is capable of searching for continuous gravitational waves, quasi-monochromatic, persistent signals arising from asymmetrically rotating neutron stars, in $\sim 1$ year of simulated data that…

广义相对论与量子宇宙学 · 物理学 2022-07-27 Takahiro S. Yamamoto , Andrew L. Miller , Magdalena Sieniawska , Takahiro Tanaka

We present a first proof-of-principle study for using deep neural networks (DNNs) as a novel search method for continuous gravitational waves (CWs) from unknown spinning neutron stars. The sensitivity of current wide-parameter-space CW…

广义相对论与量子宇宙学 · 物理学 2019-09-09 Christoph Dreissigacker , Rahul Sharma , Chris Messenger , Ruining Zhao , Reinhard Prix

The signal of continuous gravitational waves has a longer duration than the observation period. Even if the waveform in the source frame is monochromatic, we will observe the waveform with modulated frequencies due to the motion of the…

广义相对论与量子宇宙学 · 物理学 2021-05-05 Takahiro S. Yamamoto , Takahiro Tanaka

Continuous gravitational waves represent one of the long-sought types of signals that have yet to be detected. Due to their small amplitude, long observational datasets (months-years) have to be analyzed together, thereby vastly increasing…

广义相对论与量子宇宙学 · 物理学 2022-06-22 P. B. Covas , R. Prix

We present a comprehensive study of the effectiveness of Convolution Neural Networks (CNNs) to detect long duration transient gravitational-wave signals lasting $O(hours-days)$ from isolated neutron stars. We determine that CNNs are robust…

Rapidly rotating neutron stars are promising sources of continuous gravitational waves for the LIGO and Virgo observatories. The majority of neutron stars in our galaxy have not been identified with electromagnetic observations. Blind…

天体物理仪器与方法 · 物理学 2019-05-06 Sinead Walsh , Karl Wette , Maria Alessandra Papa , Reinhard Prix

Coherent wide parameter-space searches for continuous gravitational waves are typically limited in sensitivity by their prohibitive computing cost. Therefore semi-coherent methods (such as StackSlide) can often achieve a better sensitivity.…

广义相对论与量子宇宙学 · 物理学 2015-06-03 Reinhard Prix , Miroslav Shaltev

A search for periodic gravitational-wave signals from isolated neutron stars in the NAUTILUS detector data is presented. We have analyzed half a year of data over the frequency band $<922.2; 923.2>$ Hz, the spindown range…

In this work we characterise the performance of a new search technique designed to be sensitive to the remnants of binary neutron star systems. Sensitivity estimates of the new method on simulated data are competitive against those of other…

广义相对论与量子宇宙学 · 物理学 2024-01-17 Benjamin Grace , Karl Wette , Susan M. Scott , Ling Sun

We describe a novel, very fast and robust, directed search incoherent method for periodic gravitational waves (GWs) from neutron stars in binary systems. As directed search, we assume the source sky position to be known with enough…

天体物理仪器与方法 · 物理学 2017-06-07 Paola Leaci , Pia Astone , Sabrina D'Antonio , Sergio Frasca , Cristiano Palomba , Ornella Piccinni , Simone Mastrogiovanni

Many continuous gravitational wave searches are affected by instrumental spectral lines that could be confused with a continuous astrophysical signal. Several techniques have been developed to limit the effect of these lines by penalising…

天体物理仪器与方法 · 物理学 2020-10-28 Joseph Bayley , Chris Messenger , Graham Woan

The search for continuous gravitational waves demands computationally efficient algorithms that can handle highly non-linear parameter spaces. Loosely coherent algorithms establish upper limits and detect signals by analyzing families of…

天体物理仪器与方法 · 物理学 2019-01-04 Vladimir Dergachev

In searching for continuous gravitational waves over very many ($\approx 10^{17}$) templates , clustering is a powerful tool which increases the search sensitivity by identifying and bundling together candidates that are due to the same…

广义相对论与量子宇宙学 · 物理学 2020-03-11 Banafsheh Beheshtipour , Maria Alessandra Papa

While a fully-coherent all-sky search is known to be optimal for detecting gravitational wave signals from compact binary coalescences, its high computational cost has limited current searches to less sensitive coincidence-based schemes.…

天体物理仪器与方法 · 物理学 2020-04-08 Marc E. Normandin , Soumya D. Mohanty

The forthcoming generation of radio telescope arrays promises significant advancements in sensitivity and resolution, enabling the identification and characterization of many new faint and diffuse radio sources. Conventional manual…

天体物理仪器与方法 · 物理学 2024-08-21 Chiara Stuardi , Claudio Gheller , Franco Vazza , Andrea Botteon

Gravitational waves emitted by asymmetric rotating neutron stars are the primary targets of continuous gravitational-wave searches. Neutron stars in binary systems are particularly interesting due to the potential for non-axisymmetric…

广义相对论与量子宇宙学 · 物理学 2025-05-27 P. B. Covas , M. A. Papa , R. Prix

We demonstrate an all-sky search for persistent, narrowband gravitational waves using mock data. The search employs radiometry to sidereal-folded data in order to uncover persistent sources of gravitational waves with minimal assumptions…

天体物理仪器与方法 · 物理学 2019-01-31 Boris Goncharov , Eric Thrane
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