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  • Ajello, M.Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA. (author)

A gamma-ray pulsar timing array constrains the nanohertz gravitational wave background

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • American Association for the Advancement of Science (AAAS),2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-205204
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-205204URI
  • https://doi.org/10.1126/science.abm3231DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-313083URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:du-42229URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20220601
  • After large galaxies merge, their central supermassive black holes are expected to form binary systems. Their orbital motion should generate a gravitational wave background (GWB) at nanohertz frequencies. Searches for this background use pulsar timing arrays, which perform long-term monitoring of millisecond pulsars at radio wavelengths. We used 12.5 years of Fermi Large Area Telescope data to form a gamma-ray pulsar timing array. Results from 35 bright gamma-ray pulsars place a 95% credible limit on the GWB characteristic strain of 1.0 x 10(-14) at a frequency of 1 year(-1). The sensitivity is expected to scale with t(obs), the observing time span, as t(obs)(-13/6). This direct measurement provides an independent probe of the GWB while offering a check on radio noise models.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Atwood, W. B. (author)
  • Baldini, L. (author)
  • Ballet, J. (author)
  • Barbiellini, G. (author)
  • Bastieri, D. (author)
  • Bellazzini, R. (author)
  • Berretta, A. (author)
  • Bhattacharyya, B. (author)
  • Bissaldi, E. (author)
  • Blandford, R. D. (author)
  • Bloom, E. (author)
  • Bonino, R. (author)
  • Bruel, P. (author)
  • Buehler, R. (author)
  • Burns, E. (author)
  • Buson, S. (author)
  • Cameron, R. A. (author)
  • Caraveo, P. A.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany. (author)
  • Cavazzuti, E. (author)
  • Cibrario, N. (author)
  • Ciprini, S. (author)
  • Clark, C. J. (author)
  • Cognard, I. (author)
  • Coronado-Blazquez, J. (author)
  • Crnogorcevic, M. (author)
  • Cromartie, H. (author)
  • Crowter, K. (author)
  • Cutini, S. (author)
  • D'Ammando, F. (author)
  • De Gaetano, S. (author)
  • de Palma, F. (author)
  • Digel, S. W. (author)
  • Di Lalla, N. (author)
  • Dirirsa, F. Fana (author)
  • Di Venere, L. (author)
  • Dominguez, A. (author)
  • Ferrara, E. C. (author)
  • Fiori, A. (author)
  • Franckowiak, A. (author)
  • Fukazawa, Y. (author)
  • Funk, S. (author)
  • Fusco, P. (author)
  • Gammaldi, V. (author)
  • Gargano, F. (author)
  • Gasparrini, D. (author)
  • Giglietto, N. (author)
  • Giordano, F. (author)
  • Giroletti, M. (author)
  • Green, D. (author)
  • Grenier, I. A. (author)
  • Guillemot, L. (author)
  • Guiriec, S. (author)
  • Gustafsson, M. (author)
  • Harding, A. K. (author)
  • Hays, E. (author)
  • Hewitt, J. W. (author)
  • Horan, D. (author)
  • Hou, X. (author)
  • Jóhannesson, GuðlaugurKTH,Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),University of Iceland, Iceland,Nordic Institute for Theoretical Physics NORDITA,Univ Iceland, Sci Inst, IS-107 Reykjavik, Iceland.;NORDITA, Royal Inst Technol, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.;Stockholm Univ, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.(Swepub:kth)u1dxoc6e (author)
  • Keith, M. J. (author)
  • Kerr, M.Naval Res Lab, Space Sci Div, Washington, DC 20375 USA. (author)
  • Kramer, M. (author)
  • Marti-Devesa, G. (author)
  • Kuss, M. (author)
  • Larsson, StefanHögskolan Dalarna,KTH,Tillämpad fysik,Oskar Klein Ctr Cosmoparticle Phys, AlbaNova, SE-10691 Stockholm, Sweden.;Dalarna Univ, Sch Educ Hlth & Social Studies, Nat Sci, SE-79188 Falun, Sweden.,Naturvetenskap(Swepub:du)slr (author)
  • Latronico, L. (author)
  • Li, J. (author)
  • Longo, F. (author)
  • Loparco, F. (author)
  • Lovellette, M. N. (author)
  • Lubrano, P. (author)
  • Maldera, S. (author)
  • Manfreda, A. (author)
  • Mazziotta, M. N. (author)
  • Mereu, I. (author)
  • Michelson, P. F. (author)
  • Mirabal, N. (author)
  • Mitthumsiri, W. (author)
  • Mizuno, T. (author)
  • Monzani, M. E. (author)
  • Morselli, A. (author)
  • Negro, M. (author)
  • Nieder, L. (author)
  • Ojha, R. (author)
  • Omodei, N. (author)
  • Orienti, M. (author)
  • Orlando, E. (author)
  • Ormes, J. F. (author)
  • Paneque, D. (author)
  • Parthasarathy, A. (author)
  • Pei, Z. (author)
  • Persic, M. (author)
  • Pesce-Rollins, M. (author)
  • Pillera, R. (author)
  • Poon, H. (author)
  • Porter, T. A. (author)
  • Principe, G. (author)
  • Racusin, J. L. (author)
  • Raino, S. (author)
  • Rando, R. (author)
  • Rani, B. (author)
  • Ransom, S. M. (author)
  • Ray, P. S. (author)
  • Razzano, M. (author)
  • Razzaque, S. (author)
  • Reimer, A. (author)
  • Reimer, O. (author)
  • Roy, J. (author)
  • Sanchez-Conde, M. (author)
  • Parkinson, P. M. Saz (author)
  • Scargle, J. (author)
  • Scotton, L. (author)
  • Serini, D. (author)
  • Sgro, C. (author)
  • Siskind, E. J. (author)
  • Smith, D. A. (author)
  • Spandre, G. (author)
  • Spiewak, R. (author)
  • Spinelli, P. (author)
  • Stairs, I. (author)
  • Suson, D. J. (author)
  • Swihart, S. J. (author)
  • Tabassum, S. (author)
  • Thayer, J. B. (author)
  • Theureau, G. (author)
  • Torres, D. F. (author)
  • Troja, E. (author)
  • Valverde, J. (author)
  • Wadiasingh, Z. (author)
  • Wood, K. (author)
  • Zaharijas, G.Univ Nova Gorica, Ctr Astrophys & Cosmol, Nova Gorica, Slovenia. (author)
  • Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany. (creator_code:org_t)

Related titles

  • In:Science: American Association for the Advancement of Science (AAAS)376:6592, s. 521-5230036-80751095-9203

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By the author/editor
Ajello, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
show more...
Bellazzini, R.
Berretta, A.
Bhattacharyya, B ...
Bissaldi, E.
Blandford, R. D.
Bloom, E.
Bonino, R.
Bruel, P.
Buehler, R.
Burns, E.
Buson, S.
Cameron, R. A.
Caraveo, P. A.
Cavazzuti, E.
Cibrario, N.
Ciprini, S.
Clark, C. J.
Cognard, I.
Coronado-Blazque ...
Crnogorcevic, M.
Cromartie, H.
Crowter, K.
Cutini, S.
D'Ammando, F.
De Gaetano, S.
de Palma, F.
Digel, S. W.
Di Lalla, N.
Dirirsa, F. Fana
Di Venere, L.
Dominguez, A.
Ferrara, E. C.
Fiori, A.
Franckowiak, A.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gammaldi, V.
Gargano, F.
Gasparrini, D.
Giglietto, N.
Giordano, F.
Giroletti, M.
Green, D.
Grenier, I. A.
Guillemot, L.
Guiriec, S.
Gustafsson, M.
Harding, A. K.
Hays, E.
Hewitt, J. W.
Horan, D.
Hou, X.
Jóhannesson, Guð ...
Keith, M. J.
Kerr, M.
Kramer, M.
Marti-Devesa, G.
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Larsson, Stefan
Latronico, L.
Li, J.
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Loparco, F.
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Maldera, S.
Manfreda, A.
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Mizuno, T.
Monzani, M. E.
Morselli, A.
Negro, M.
Nieder, L.
Ojha, R.
Omodei, N.
Orienti, M.
Orlando, E.
Ormes, J. F.
Paneque, D.
Parthasarathy, A ...
Pei, Z.
Persic, M.
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Pillera, R.
Poon, H.
Porter, T. A.
Principe, G.
Racusin, J. L.
Raino, S.
Rando, R.
Rani, B.
Ransom, S. M.
Ray, P. S.
Razzano, M.
Razzaque, S.
Reimer, A.
Reimer, O.
Roy, J.
Sanchez-Conde, M ...
Parkinson, P. M. ...
Scargle, J.
Scotton, L.
Serini, D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Spandre, G.
Spiewak, R.
Spinelli, P.
Stairs, I.
Suson, D. J.
Swihart, S. J.
Tabassum, S.
Thayer, J. B.
Theureau, G.
Torres, D. F.
Troja, E.
Valverde, J.
Wadiasingh, Z.
Wood, K.
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