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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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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-764D-B Version Permalink: http://hdl.handle.net/21.11116/0000-0003-020D-D
Genre: Journal Article

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Verbiest, J. P. W., Author
Lentati, L., Author
Hobbs, G., Author
Haasteren van, R., Author
Demorest, P. B., Author
Janssen, G. H., Author
Wang, J. -B., Author
Desvignes, G., Author
Caballero, R. N., Author
Keith, M. J., Author
Champion, D. J., Author
Arzoumanian, Z., Author
Babak, S.1, Author              
Bassa, C. G., Author
Bhat, N. D. R., Author
Brazier, A., Author
Brem, P., Author
Burgay, M., Author
Burke-Spolaor, S., Author
Chamberlin, S. J., Author
Chatterjee, S., AuthorChristy, B., AuthorCognard, I., AuthorCordes, J. M., AuthorDai, S., AuthorDolch, T., AuthorEllis, J. A., AuthorFerdman, R. D., AuthorFonseca, E., AuthorGair, J. R., AuthorGarver-Daniels, N. E., AuthorGentile, P., AuthorGonzalez, M. E., AuthorGraikou, E., AuthorGuillemot, L., AuthorHessels, J. W. T., AuthorJones, G., AuthorKaruppusamy, R., AuthorKerr, M., AuthorKramer, M., AuthorLam, M. T., AuthorLasky, P. D., AuthorLassus, A., AuthorLazarus, P., AuthorLazio, T. J. W., AuthorLee, K. J., AuthorLevin, L., AuthorLiu, K., AuthorLynch, R. S., AuthorLyne, A. G., AuthorMckee, J., AuthorMcLaughlin, M. A., AuthorMcWilliams, S. T., AuthorMadison, D. R., AuthorManchester, R. N., AuthorMingarelli, C. M. F., AuthorNice, D. J., AuthorOslowski, S., AuthorPalliyaguru, N. T., AuthorPennucci, T. T., AuthorPerera, B. B. P., AuthorPerrodin, D., AuthorPossenti, A., AuthorPetiteau, A., AuthorRansom, S. M., AuthorReardon, D., AuthorRosado, P. A., AuthorSanidas, S. A., AuthorSesana, A., AuthorShaifullah, G., AuthorShannon, R. M., AuthorSiemens, X., AuthorSimon, J., AuthorSmits, R., AuthorSpiewak, R., AuthorStairs, I. H., AuthorStappers, B. W., AuthorStinebring, D. R., AuthorStovall, K., AuthorSwiggum, J. K., AuthorTaylor, S. R., AuthorTheureau, G., AuthorTiburzi, C., AuthorToomey, L., AuthorVallisneri, M., Authorvan Straten, W., AuthorVecchio, A., AuthorWang, Y., AuthorWen, L., AuthorYou, X. P., AuthorZhu, W. W., AuthorZhu, X. -J., Author more..
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Abstract: 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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 Dates: 2016-02-112016
 Publication Status: Published in print
 Pages: 25 pages, 6 tables, 5 figures. Accepted for publication in MNRAS
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1602.03640
DOI: 10.1093/mnras/stw347
URI: http://arxiv.org/abs/1602.03640
 Degree: -

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Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 458 (2) Sequence Number: - Start / End Page: 1267 - 1288 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150