Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background

Taylor, S. R.; Mingarelli, C. M. F.; Gair, J. R.; Sesana, A.; Theureau, G.; Babak, S.; Bassa, C. G.; Brem, P.; Burgay, M.; Caballero, R. N.; Champion, D. J.; Cognard, I.; Desvignes, G.; Guillemot, L.; Hessels, J. W. T.; Janssen, G. H.; Karuppusamy, R.; Kramer, M.; Lassus, A.; Lazarus, P.; Lentati, L.; Liu, K.; Oslowski, Stefan; Perrodin, D.; Petiteau, A.; Possenti, A.; Purver, M. B.; Rosado, P. A.; Sanidas, S. A.; Smits, R.; Stappers, B.; Tiburzi, C.; van Haasteren, R.; Vecchio, A.; Verbiest, Joris

Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background

Taylor SR, Mingarelli CMF, Gair JR, Sesana A, Theureau G, Babak S, Bassa CG, Brem P, Burgay M, Caballero RN, Champion DJ, et al. (2015)
Physical Review Letters 115(4): 41101.

Zeitschriftenaufsatz | Veröffentlicht | Englisch

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DOI

https://doi.org/10.1103/PhysRevLett.115.041101

Autor*in

Taylor, S. R.; Mingarelli, C. M. F.; Gair, J. R.; Sesana, A.; Theureau, G.; Babak, S.; Bassa, C. G.; Brem, P.; Burgay, M.; Caballero, R. N.; Champion, D. J.; Cognard, I.
Alle

Einrichtung

Fakultät für Physik > AG Radioastronomie

Abstract / Bemerkung

The paucity of observed supermassive black hole binaries (SMBHBs) may imply that the gravitational wave background (GWB) from this population is anisotropic, rendering existing analyses suboptimal. We present the first constraints on the angular distribution of a nanohertz stochastic GWB from circular, inspiral-driven SMBHBs using the 2015 European Pulsar Timing Array data. Our analysis of the GWB in the ∼2–90 nHz band shows consistency with isotropy, with the strain amplitude in l>0 spherical harmonic multipoles ≲40% of the monopole value. We expect that these more general techniques will become standard tools to probe the angular distribution of source populations.

Erscheinungsjahr

2015

Zeitschriftentitel

Physical Review Letters

Band

115

Ausgabe

Art.-Nr.

41101

ISSN

0031-9007

Page URI

https://pub.uni-bielefeld.de/record/2768695

Zitieren

Taylor SR, Mingarelli CMF, Gair JR, et al. Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background. Physical Review Letters. 2015;115(4): 41101.

Taylor, S. R., Mingarelli, C. M. F., Gair, J. R., Sesana, A., Theureau, G., Babak, S., Bassa, C. G., et al. (2015). Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background. Physical Review Letters, 115(4), 41101. https://doi.org/10.1103/PhysRevLett.115.041101

Taylor, S. R., Mingarelli, C. M. F., Gair, J. R., Sesana, A., Theureau, G., Babak, S., Bassa, C. G., et al. 2015. “Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background”. Physical Review Letters 115 (4): 41101.

Taylor, S. R., Mingarelli, C. M. F., Gair, J. R., Sesana, A., Theureau, G., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Caballero, R. N., et al. (2015). Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background. Physical Review Letters 115:41101.

Taylor, S.R., et al., 2015. Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background. Physical Review Letters, 115(4): 41101.

S.R. Taylor, et al., “Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background”, Physical Review Letters, vol. 115, 2015, : 41101.

Taylor, S.R., Mingarelli, C.M.F., Gair, J.R., Sesana, A., Theureau, G., Babak, S., Bassa, C.G., Brem, P., Burgay, M., Caballero, R.N., Champion, D.J., Cognard, I., Desvignes, G., Guillemot, L., Hessels, J.W.T., Janssen, G.H., Karuppusamy, R., Kramer, M., Lassus, A., Lazarus, P., Lentati, L., Liu, K., Oslowski, S., Perrodin, D., Petiteau, A., Possenti, A., Purver, M.B., Rosado, P.A., Sanidas, S.A., Smits, R., Stappers, B., Tiburzi, C., van Haasteren, R., Vecchio, A., Verbiest, J.: Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background. Physical Review Letters. 115, : 41101 (2015).

Taylor, S. R., Mingarelli, C. M. F., Gair, J. R., Sesana, A., Theureau, G., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Caballero, R. N., Champion, D. J., Cognard, I., Desvignes, G., Guillemot, L., Hessels, J. W. T., Janssen, G. H., Karuppusamy, R., Kramer, M., Lassus, A., Lazarus, P., Lentati, L., Liu, K., Oslowski, Stefan, Perrodin, D., Petiteau, A., Possenti, A., Purver, M. B., Rosado, P. A., Sanidas, S. A., Smits, R., Stappers, B., Tiburzi, C., van Haasteren, R., Vecchio, A., and Verbiest, Joris. “Limits on Anisotropy in the Nanohertz Stochastic Gravitational Wave Background”. Physical Review Letters 115.4 (2015): 41101.

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