دورية أكاديمية
Time-delay interferometry without delays
| العنوان: | Time-delay interferometry without delays |
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| المؤلفون: | Vallisneri, Michele, Bayle, Jean-Baptiste, Babak, Stanislav, Petiteau, Antoine |
| المساهمون: | AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
| المصدر: | ISSN: 1550-7998. |
| بيانات النشر: | HAL CCSD American Physical Society |
| سنة النشر: | 2021 |
| المجموعة: | HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules) |
| مصطلحات موضوعية: | Experiments in gravity, cosmology, cosmic rays, time delay: interferometer, laser, LISA, gravitational radiation, gravitational radiation detector, detector: noise, time dependence, wave: propagation, orbit, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
| الوصف: | International audience ; The space-based gravitational-wave observatory LISA relies on a form of synthetic interferometry (time-delay interferometry, or TDI) where the otherwise overwhelming laser phase noise is canceled by linear combinations of appropriately delayed phase measurements. These observables grow in length and complexity as the realistic features of the LISA orbits are taken into account. In this paper we outline an implicit formulation of TDI where we write the LISA likelihood directly in terms of the basic phase measurements, and we marginalize over the laser phase noises in the limit of infinite laser-noise variance. Equivalently, we rely on TDI observables that are defined numerically (rather than algebraically) from a discrete-filter representation of the laser propagation delays. Our method generalizes to any time dependence of the armlengths; it simplifies the modeling of gravitational-wave signals; and it allows a straightforward treatment of data gaps and missing measurements. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/2008.12343; hal-02946242; https://hal.science/hal-02946242Test; ARXIV: 2008.12343; BIBCODE: 2021PhRvD.103h2001V; INSPIRE: 1813819 |
| DOI: | 10.1103/PhysRevD.103.082001 |
| الإتاحة: | https://doi.org/10.1103/PhysRevD.103.082001Test https://hal.science/hal-02946242Test |
| رقم الانضمام: | edsbas.A529F92E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevD.103.082001 |
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