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  The International Pulsar Timing Array: First Data Release

Verbiest, J. P. W., Lentati, L., Hobbs, G., Haasteren van, R., Demorest, P. B., Janssen, G. H., et al. (2016). The International Pulsar Timing Array: First Data Release. Monthly Notices of the Royal Astronomical Society, 458(2), 1267-1288. doi:10.1093/mnras/stw347.

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1602.03640.pdf (Preprint), 6MB
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Verbiest, J. P. W., Autor
Lentati, L., Autor
Hobbs, G., Autor
Haasteren van, R., Autor
Demorest, P. B., Autor
Janssen, G. H., Autor
Wang, J. -B., Autor
Desvignes, G., Autor
Caballero, R. N., Autor
Keith, M. J., Autor
Champion, D. J., Autor
Arzoumanian, Z., Autor
Babak, S.1, Autor           
Bassa, C. G., Autor
Bhat, N. D. R., Autor
Brazier, A., Autor
Brem, P., Autor
Burgay, M., Autor
Burke-Spolaor, S., Autor
Chamberlin, S. J., Autor
Chatterjee, S., AutorChristy, B., AutorCognard, I., AutorCordes, J. M., AutorDai, S., AutorDolch, T., AutorEllis, J. A., AutorFerdman, R. D., AutorFonseca, E., AutorGair, J. R., AutorGarver-Daniels, N. E., AutorGentile, P., AutorGonzalez, M. E., AutorGraikou, E., AutorGuillemot, L., AutorHessels, J. W. T., AutorJones, G., AutorKaruppusamy, R., AutorKerr, M., AutorKramer, M., AutorLam, M. T., AutorLasky, P. D., AutorLassus, A., AutorLazarus, P., AutorLazio, T. J. W., AutorLee, K. J., AutorLevin, L., AutorLiu, K., AutorLynch, R. S., AutorLyne, A. G., AutorMckee, J., AutorMcLaughlin, M. A., AutorMcWilliams, S. T., AutorMadison, D. R., AutorManchester, R. N., AutorMingarelli, C. M. F., AutorNice, D. J., AutorOslowski, S., AutorPalliyaguru, N. T., AutorPennucci, T. T., AutorPerera, B. B. P., AutorPerrodin, D., AutorPossenti, A., AutorPetiteau, A., AutorRansom, S. M., AutorReardon, D., AutorRosado, P. A., AutorSanidas, S. A., AutorSesana, A., AutorShaifullah, G., AutorShannon, R. M., AutorSiemens, X., AutorSimon, J., AutorSmits, R., AutorSpiewak, R., AutorStairs, I. H., AutorStappers, B. W., AutorStinebring, D. R., AutorStovall, K., AutorSwiggum, J. K., AutorTaylor, S. R., AutorTheureau, G., AutorTiburzi, C., AutorToomey, L., AutorVallisneri, M., Autorvan Straten, W., AutorVecchio, A., AutorWang, Y., AutorWen, L., AutorYou, X. P., AutorZhu, W. W., AutorZhu, X. -J., Autor mehr..
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Schlagwörter: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Zusammenfassung: The highly stable spin of neutron stars can be exploited for a variety of (astro-)physical investigations. In particular arrays of pulsars with rotational periods of the order of milliseconds can be used to detect correlated signals such as those caused by gravitational waves. Three such "Pulsar Timing Arrays" (PTAs) have been set up around the world over the past decades and collectively form the "International" PTA (IPTA). In this paper, we describe the first joint analysis of the data from the three regional PTAs, i.e. of the first IPTA data set. We describe the available PTA data, the approach presently followed for its combination and suggest improvements for future PTA research. Particular attention is paid to subtle details (such as underestimation of measurement uncertainty and long-period noise) that have often been ignored but which become important in this unprecedentedly large and inhomogeneous data set. We identify and describe in detail several factors that complicate IPTA research and provide recommendations for future pulsar timing efforts. The first IPTA data release presented here (and available online) is used to demonstrate the IPTA's potential of improving upon gravitational-wave limits placed by individual PTAs by a factor of ~2 and provides a 2-sigma limit on the dimensionless amplitude of a stochastic GWB of 1.7x10^{-15} at a frequency of 1 yr^{-1}. This is 1.7 times less constraining than the limit placed by (Shannon et al. 2015), due mostly to the more recent, high-quality data they used.

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 Datum: 2016-02-112016
 Publikationsstatus: Erschienen
 Seiten: 25 pages, 6 tables, 5 figures. Accepted for publication in MNRAS
 Ort, Verlag, Ausgabe: -
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Titel: Monthly Notices of the Royal Astronomical Society
  Andere : Mon. Not. R. Astron. Soc.
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: Oxford : Oxford University Press
Seiten: - Band / Heft: 458 (2) Artikelnummer: - Start- / Endseite: 1267 - 1288 Identifikator: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150