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相关论文: Wave-optical effects in the microlensing of contin…

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The increase in gravitational wave (GW) events has allowed receiving strong lensing image pairs of GWs. However, the wave effect (diffraction and interference) due to the microlens field contaminates the parameter estimation of the image…

宇宙学与河外天体物理 · 物理学 2024-12-24 Xikai Shan , Guoliang Li , Xuechun Chen , Wenwen Zheng , Wen Zhao

Detection of quasi-monochromatic, long-duration (continuous) gravitational wave radiation emitted by, e.g., asymmetric rotating neutron stars in our Galaxy requires a long observation time to distinguish it from the detector's noise. If…

广义相对论与量子宇宙学 · 物理学 2025-10-29 Sudhagar Suyamprakasam , Sreekanth Harikumar , Paweł Ciecieląg , Przemysław Figura , Michał Bejger , Marek Biesiada

Wave-mechanical effects in gravitational lensing have long been predicted, and with the discovery of populations of compact transients such as gravitational wave events and fast radio bursts, may soon be observed. We present an observer's…

高能天体物理现象 · 物理学 2023-04-04 Calvin Leung , Dylan Jow , Prasenjit Saha , Liang Dai , Masamune Oguri , Léon V. E. Koopmans

When gravitational waves pass through the nuclear star clusters of galactic lenses, they may be microlensed by the stars. Such microlensing can cause potentially observable beating patterns on the waveform due to waveform superposition and…

高能天体物理现象 · 物理学 2021-03-10 Mark H. Y. Cheung , Joseph Gais , Otto A. Hannuksela , Tjonnie G. F. Li

When gravitational waves propagate near massive objects, their paths curve resulting in gravitational lensing, which is expected to be a promising new instrument in astrophysics. If the time delay between different paths is comparable with…

广义相对论与量子宇宙学 · 物理学 2022-07-14 Oleg Bulashenko , Helena Ubach

Astrophysical implications of gravitational microlensing of gravitational waves emitted by rotating neutron stars (NSs) are investigated. In particular, attention is focused on the following situations: i) NSs in the galactic bulge lensed…

天体物理学 · 物理学 2009-10-31 F. De Paolis , G. Ingrosso , A. A. Nucita

We consider small-scale spheroidal clusters of weakly interacting massive particles in our Galaxy as non-compact gravitational microlenses and predict the appearance of caustics in the plane of a lensed source. The crossing of these…

天体物理学 · 物理学 2010-04-30 M. B. Bogdanov , A. M. Cherepashchuk

The effect of gravitational microlensing on the intensity of gravitational radiation as it propagates through an inhomogeneous medium containing small-scale structure is considered. Lensing by both stars and a power law spectrum of density…

天体物理学 · 物理学 2009-11-11 Jean-Pierre Macquart

We discuss the gravitational lensing of gravitational wave signals from coalescing binaries. We delineate the regime where wave effects are significant from the regime where geometric limit can be used. Further, we focus on the effect of…

宇宙学与河外天体物理 · 物理学 2019-12-18 Ashish Kumar Meena , J S Bagla

Strongly lensed gravitational waves may pass through the stellar field of a lensing galaxy with additional modulations (on both phase and amplitude) due to gravitational microlensing effect of stars/remnants near the line of sight. These…

广义相对论与量子宇宙学 · 物理学 2025-10-21 Zhaoqi Su , Xikai Shan , Zhenwei Lyu , Junyao Zhang , Yebin Liu , Shude Mao , Huan Yang

We investigate the chances that neutron stars act as the lense in a gravitational microlensing event towards the galactic bulge or a spiral arm. The observation of neutron stars by means of gravitational microlensing would allow the…

天体物理学 · 物理学 2009-11-07 Dominik J. Schwarz , Dirk Seidel

Gravitational lensing in wave optics is a rich field combining caustic singularities, general relativity and interference phenomena. We present a detailed evaluation of wave optics effects resulting from the frame-dragging of a rotating…

广义相对论与量子宇宙学 · 物理学 2024-10-08 Béatrice Bonga , Job Feldbrugge , Ariadna Ribes Metidieri

Here, we study the microlensing of radially pulsating stars. Discerning and characterizing the properties of distant, faint pulsating stars is achievable through high-cadence microlensing observations. Combining stellar variability period…

太阳与恒星天体物理 · 物理学 2020-04-22 Sedighe Sajadian , Richard Ignace

We consider the possible effects of gravitational lensing by globular clusters on gravitational waves from asymmetric neutron stars in our galaxy. In the lensing of gravitational waves, the long wavelength, compared with the usual case of…

广义相对论与量子宇宙学 · 物理学 2016-11-15 Andrew J. Moylan , David E. McClelland , Susan M. Scott , Antony C. Searle , G. V. Bicknell

We study the wave optics features of gravitational microlensing by a binary lens composed of a planet and a parent star. In this system, the source star near the caustic line produces a pair of images in which they can play the role of…

地球与行星天体物理 · 物理学 2015-06-05 Ahmad Mehrabi , Sohrab Rahvar

Gravitational wave predicted by General Relativity is the transverse wave of spatial strain. Several gravitational waveform signals from binary black holes and from a binary neutron star system accompanied by electromagnetic counterparts…

广义相对论与量子宇宙学 · 物理学 2019-05-02 Kai Liao , Marek Biesiada , Xi-Long Fan

Gravitational lensing describes the bending of the trajectories of light and gravitational waves due to the gravitational potential of a massive object. Strong lensing by galaxies can create multiple images with different overall…

广义相对论与量子宇宙学 · 物理学 2024-02-26 Simon M. C. Yeung , Mark H. Y. Cheung , Joseph A. J. Gais , Otto A. Hannuksela , Tjonnie G. F. Li

Continuous gravitational waves are analogous to monochromatic light and therefore could be used to detect wave effects like interference or diffraction. This would be possible with strongly lensed gravitational waves. This article reviews…

广义相对论与量子宇宙学 · 物理学 2022-02-02 Marek Biesiada , Sreekanth Harikumar

The distribution of masses of neutron stars, particularly the maximum mass value, is considered a probe of their formation, evolution and internal physics (i.e., equation of state). This mass distribution could in principle be inferred from…

宇宙学与河外天体物理 · 物理学 2024-08-27 Sofia Canevarolo , Loek van Vonderen , Nora Elisa Chisari

Wave effects are often neglected in microlensing studies; however, for coherent point-like sources, such as pulsars and fast radio bursts (FRBs), wave effects will become important in their gravitational lensing. In this paper, we describe…

高能天体物理现象 · 物理学 2020-08-12 Dylan L. Jow , Simon Foreman , Ue-Li Pen , Wei Zhu
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