Upper limit map of a background of gravitational waves

B. Abbott; R. Abbott; R. Adhikari; J. Agresti; P. Ajith; B. Allen; R. Amin; S.B. Anderson; W.G. Anderson; M. Arain; M. Araya; H. Armandula; M. Ashley; S. Aston; P. Aufmuth; C. Aulbert; S. Babak; S. Ballmer; H. Bantilan; B.C. Barish; C. Barker; D. Barker; B. Barr; P. Barriga; M.A. Barton; K. Bayer; K. Belczynski; J. Betzwieser; P.T. Beyersdorf; B. Bhawal; I.A. Bilenko; G. Billingsley; R. Biswas; E. Black; K. Blackburn; L. Blackburn; D. Blair; B. Bland; J. Bogenstahl; L. Bogue; R. Bork; V. Boschi; S. Bose; P.R. Brady; V.B. Braginsky; J.E. Brau; M. Brinkmann; A. Brooks; D.A. Brown; A. Bullington; S. Hild

doi:10.1103/PhysRevD.76.082003

Upper limit map of a background of gravitational waves

B. Abbott, R. Abbott, R. Adhikari, J. Agresti, P. Ajith, B. Allen, R. Amin, S.B. Anderson, W.G. Anderson, M. Arain, M. Araya, H. Armandula, M. Ashley, S. Aston, P. Aufmuth, C. Aulbert, S. Babak, S. Ballmer, H. Bantilan, B.C. BarishC. Barker, D. Barker, B. Barr, P. Barriga, M.A. Barton, K. Bayer, K. Belczynski, J. Betzwieser, P.T. Beyersdorf, B. Bhawal, I.A. Bilenko, G. Billingsley, R. Biswas, E. Black, K. Blackburn, L. Blackburn, D. Blair, B. Bland, J. Bogenstahl, L. Bogue, R. Bork, V. Boschi, S. Bose, P.R. Brady, V.B. Braginsky, J.E. Brau, M. Brinkmann, A. Brooks, D.A. Brown, A. Bullington, S. Hild

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

We searched for an anisotropic background of gravitational waves using data from the LIGO S4 science run and a method that is optimized for point sources. This is appropriate if, for example, the gravitational wave background is dominated by a small number of distinct astrophysical sources. No signal was seen. Upper limit maps were produced assuming two different power laws for the source strain power spectrum. For an f(-3) power law and using the 50 Hz to 1.8 kHz band the upper limits on the source strain power spectrum vary between 1.2 x 10(-48) Hz(-1) (100 Hz/f)(3) and 1.2 x 10(-47) Hz(-1) (100 Hz/f)(3), depending on the position in the sky. Similarly, in the case of constant strain power spectrum, the upper limits vary between 8.5 x 10(-49) Hz(-1) and 6.1 x 10(-48) Hz(-1). As a side product a limit on an isotropic background of gravitational waves was also obtained. All limits are at the 90% confidence level. Finally, as an application, we focused on the direction of Sco-X1, the brightest low-mass x-ray binary. We compare the upper limit on strain amplitude obtained by this method to expectations based on the x-ray flux from Sco-X1.

Original language	English
Article number	082003
Number of pages	11
Journal	Physical Review D
Volume	76
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevD.76.082003
Publication status	Published - 1 Oct 2007
Externally published	Yes

Keywords

RADIATION

Access to Document

10.1103/PhysRevD.76.082003

1 Erratum / corrigendum / retractions

Upper limit map of a background of gravitational waves (vol 76, art no 082003, 2007)
LIGO Scientific Collaboration, 1 Mar 2008, In: Physical Review D. 77, 6, 2 p., 069903.
Research output: Contribution to journal › Erratum / corrigendum / retractions › Academic

Cite this

Abbott, B., Abbott, R., Adhikari, R., Agresti, J., Ajith, P., Allen, B., Amin, R., Anderson, S. B., Anderson, W. G., Arain, M., Araya, M., Armandula, H., Ashley, M., Aston, S., Aufmuth, P., Aulbert, C., Babak, S., Ballmer, S., Bantilan, H., ... Hild, S. (2007). Upper limit map of a background of gravitational waves. Physical Review D, 76(8), Article 082003. https://doi.org/10.1103/PhysRevD.76.082003

@article{f083616a9a06494ab7cef05edefb36de,

title = "Upper limit map of a background of gravitational waves",

abstract = "We searched for an anisotropic background of gravitational waves using data from the LIGO S4 science run and a method that is optimized for point sources. This is appropriate if, for example, the gravitational wave background is dominated by a small number of distinct astrophysical sources. No signal was seen. Upper limit maps were produced assuming two different power laws for the source strain power spectrum. For an f(-3) power law and using the 50 Hz to 1.8 kHz band the upper limits on the source strain power spectrum vary between 1.2 x 10(-48) Hz(-1) (100 Hz/f)(3) and 1.2 x 10(-47) Hz(-1) (100 Hz/f)(3), depending on the position in the sky. Similarly, in the case of constant strain power spectrum, the upper limits vary between 8.5 x 10(-49) Hz(-1) and 6.1 x 10(-48) Hz(-1). As a side product a limit on an isotropic background of gravitational waves was also obtained. All limits are at the 90% confidence level. Finally, as an application, we focused on the direction of Sco-X1, the brightest low-mass x-ray binary. We compare the upper limit on strain amplitude obtained by this method to expectations based on the x-ray flux from Sco-X1.",

keywords = "RADIATION",

author = "B. Abbott and R. Abbott and R. Adhikari and J. Agresti and P. Ajith and B. Allen and R. Amin and S.B. Anderson and W.G. Anderson and M. Arain and M. Araya and H. Armandula and M. Ashley and S. Aston and P. Aufmuth and C. Aulbert and S. Babak and S. Ballmer and H. Bantilan and B.C. Barish and C. Barker and D. Barker and B. Barr and P. Barriga and M.A. Barton and K. Bayer and K. Belczynski and J. Betzwieser and P.T. Beyersdorf and B. Bhawal and I.A. Bilenko and G. Billingsley and R. Biswas and E. Black and K. Blackburn and L. Blackburn and D. Blair and B. Bland and J. Bogenstahl and L. Bogue and R. Bork and V. Boschi and S. Bose and P.R. Brady and V.B. Braginsky and J.E. Brau and M. Brinkmann and A. Brooks and D.A. Brown and A. Bullington and S. Hild",

year = "2007",

month = oct,

day = "1",

doi = "10.1103/PhysRevD.76.082003",

language = "English",

volume = "76",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "American Physical Society",

number = "8",

}

Abbott, B, Abbott, R, Adhikari, R, Agresti, J, Ajith, P, Allen, B, Amin, R, Anderson, SB, Anderson, WG, Arain, M, Araya, M, Armandula, H, Ashley, M, Aston, S, Aufmuth, P, Aulbert, C, Babak, S, Ballmer, S, Bantilan, H, Barish, BC, Barker, C, Barker, D, Barr, B, Barriga, P, Barton, MA, Bayer, K, Belczynski, K, Betzwieser, J, Beyersdorf, PT, Bhawal, B, Bilenko, IA, Billingsley, G, Biswas, R, Black, E, Blackburn, K, Blackburn, L, Blair, D, Bland, B, Bogenstahl, J, Bogue, L, Bork, R, Boschi, V, Bose, S, Brady, PR, Braginsky, VB, Brau, JE, Brinkmann, M, Brooks, A, Brown, DA, Bullington, A & Hild, S 2007, 'Upper limit map of a background of gravitational waves', Physical Review D, vol. 76, no. 8, 082003. https://doi.org/10.1103/PhysRevD.76.082003

TY - JOUR

T1 - Upper limit map of a background of gravitational waves

AU - Abbott, B.

AU - Abbott, R.

AU - Adhikari, R.

AU - Agresti, J.

AU - Ajith, P.

AU - Allen, B.

AU - Amin, R.

AU - Anderson, S.B.

AU - Anderson, W.G.

AU - Arain, M.

AU - Araya, M.

AU - Armandula, H.

AU - Ashley, M.

AU - Aston, S.

AU - Aufmuth, P.

AU - Aulbert, C.

AU - Babak, S.

AU - Ballmer, S.

AU - Bantilan, H.

AU - Barish, B.C.

AU - Barker, C.

AU - Barker, D.

AU - Barr, B.

AU - Barriga, P.

AU - Barton, M.A.

AU - Bayer, K.

AU - Belczynski, K.

AU - Betzwieser, J.

AU - Beyersdorf, P.T.

AU - Bhawal, B.

AU - Bilenko, I.A.

AU - Billingsley, G.

AU - Biswas, R.

AU - Black, E.

AU - Blackburn, K.

AU - Blackburn, L.

AU - Blair, D.

AU - Bland, B.

AU - Bogenstahl, J.

AU - Bogue, L.

AU - Bork, R.

AU - Boschi, V.

AU - Bose, S.

AU - Brady, P.R.

AU - Braginsky, V.B.

AU - Brau, J.E.

AU - Brinkmann, M.

AU - Brooks, A.

AU - Brown, D.A.

AU - Bullington, A.

AU - Hild, S.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - We searched for an anisotropic background of gravitational waves using data from the LIGO S4 science run and a method that is optimized for point sources. This is appropriate if, for example, the gravitational wave background is dominated by a small number of distinct astrophysical sources. No signal was seen. Upper limit maps were produced assuming two different power laws for the source strain power spectrum. For an f(-3) power law and using the 50 Hz to 1.8 kHz band the upper limits on the source strain power spectrum vary between 1.2 x 10(-48) Hz(-1) (100 Hz/f)(3) and 1.2 x 10(-47) Hz(-1) (100 Hz/f)(3), depending on the position in the sky. Similarly, in the case of constant strain power spectrum, the upper limits vary between 8.5 x 10(-49) Hz(-1) and 6.1 x 10(-48) Hz(-1). As a side product a limit on an isotropic background of gravitational waves was also obtained. All limits are at the 90% confidence level. Finally, as an application, we focused on the direction of Sco-X1, the brightest low-mass x-ray binary. We compare the upper limit on strain amplitude obtained by this method to expectations based on the x-ray flux from Sco-X1.

AB - We searched for an anisotropic background of gravitational waves using data from the LIGO S4 science run and a method that is optimized for point sources. This is appropriate if, for example, the gravitational wave background is dominated by a small number of distinct astrophysical sources. No signal was seen. Upper limit maps were produced assuming two different power laws for the source strain power spectrum. For an f(-3) power law and using the 50 Hz to 1.8 kHz band the upper limits on the source strain power spectrum vary between 1.2 x 10(-48) Hz(-1) (100 Hz/f)(3) and 1.2 x 10(-47) Hz(-1) (100 Hz/f)(3), depending on the position in the sky. Similarly, in the case of constant strain power spectrum, the upper limits vary between 8.5 x 10(-49) Hz(-1) and 6.1 x 10(-48) Hz(-1). As a side product a limit on an isotropic background of gravitational waves was also obtained. All limits are at the 90% confidence level. Finally, as an application, we focused on the direction of Sco-X1, the brightest low-mass x-ray binary. We compare the upper limit on strain amplitude obtained by this method to expectations based on the x-ray flux from Sco-X1.

KW - RADIATION

U2 - 10.1103/PhysRevD.76.082003

DO - 10.1103/PhysRevD.76.082003

M3 - Article

SN - 1550-7998

VL - 76

JO - Physical Review D

JF - Physical Review D

IS - 8

M1 - 082003

ER -

Upper limit map of a background of gravitational waves

Abstract

Keywords

Access to Document

Research output

Upper limit map of a background of gravitational waves (vol 76, art no 082003, 2007)

Cite this