2019/06/30 by I. H. Park, I.H. Park, K. -Y. Choi +22 · 9 citations
Engineering · Physics and Astronomy · #Adaptive optics and wavefront sensing #Amplitude #Astronomical interferometer #Coherence (philosophical gambling strategy) #Detector #Geophysics and Sensor Technology #Gravitational acceleration #Gravitational wave #Gravitational-wave observatory #Interferometry #Pulsars and Gravitational Waves Research #astro-ph.HE #astro-ph.IM #gr-qc
paper · pdf · doi:10.1088/1475-7516/2021/11/008
published in Journal of Cosmology and Astroparticle Physics 2021(11), 008 (Institute of Physics) · 12 pages, 7 figures
openalex created_date 2020/05/01 · openalex publication_date 2021/11/01 · arxiv created 2021/11/06 · arxiv updated 2021/11/09 · openalex updated_date 2026/08/05
Abstract We propose a new method to detect gravitational waves, based on spatial coherence interferometry with stellar light, as opposed to the conventional temporal coherence interferometry with laser sources. The proposed method detects gravitational waves by using two coherent beams of light from a single distant star measured at separate space-based detectors with a long baseline. This method can be applied to either the amplitude or intensity interferometry. This experiment allows for the search of gravitational waves in the lower frequency range of 10 -6 to 10 -4 Hz. In this work, we present the detection sensitivity of the proposed stellar interferometer by taking the detector response and shot and acceleration noises into account. Furthermore, the proposed experimental setup is capable of searching for primordial black holes and studying the size of the target neutron star, which are also discussed in the paper.