English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Resampling to accelerate cross-correlation searches for continuous gravitational waves from binary systems

Meadors, G. D., Krishnan, B., Papa, M. A., Whelan, J. T., & Zhang, Y. (2018). Resampling to accelerate cross-correlation searches for continuous gravitational waves from binary systems. Physical Review D, 97: 044017. doi:10.1103/PhysRevD.97.044017.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0000-3C14-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-F739-8
Genre: Journal Article

Files

show Files
hide Files
:
1712.06515.pdf (Preprint), 2MB
Name:
1712.06515.pdf
Description:
File downloaded from arXiv at 2018-01-29 12:55
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
:
PRD.97.044017.pdf (Publisher version), 1005KB
 
File Permalink:
-
Name:
PRD.97.044017.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Potsdam-Golm; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Meadors, Grant David1, Author              
Krishnan, Badri2, Author              
Papa, Maria Alessandra1, 3, Author              
Whelan, John T.2, Author              
Zhang, Yuanhao3, Author              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              
3Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_2630691              

Content

show
hide
Free keywords: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM,General Relativity and Quantum Cosmology, gr-qc
 Abstract: Continuous-wave (CW) gravitational-waves (GWs) require computationally-intensive methods. Low signal-to-noise ratio signals need templated searches with long coherent integration times and thus fine parameter-space resolution. Longer integration increases sensitivity. Low-Mass X-ray Binaries (LMXBs) such as Scorpius X-1 (Sco X-1) may emit accretion-driven CWs at strains reachable by current ground-based observatories. Binary orbital parameters induce phase modulation. This paper describes how resampling corrects binary and detector motion, yielding source-frame times series used for cross-correlation. Compared to the previous, detector-frame, templated cross-correlation method, used for Sco X-1 on data from the first Advanced LIGO observing run (O1), resampling is about 20x faster in the costliest, most-sensitive frequency bands. Speed-up factors depend on integration time and search set-up. The speed could be reinvested into longer integration with a forecast sensitivity gain, 20 to 125 Hz median, of approximately 51%, or from 20 to 250 Hz, 11%, given the same per-band cost and set-up. This paper's timing model enables future set-up optimization. Resampling scales well with longer integration, and at 10x unoptimized cost could reach respectively 2.83x and 2.75x median sensitivities, limited by spin-wandering. Then an O1 search could yield a marginalized-polarization upper limit reaching torque-balance at 100 Hz. Frequencies from 40 to 140 Hz might be probed in equal observing time with 2x improved detectors.

Details

show
hide
Language(s):
 Dates: 2017-12-182018
 Publication Status: Published in print
 Pages: 27 pages, 7 figures, 3 tables
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1712.06515
URI: http://arxiv.org/abs/1712.06515
DOI: 10.1103/PhysRevD.97.044017
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 97 Sequence Number: 044017 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258