The NANOGrav 12.5 yr Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
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Published:2023-07-01
Issue:2
Volume:951
Page:L28
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ISSN:2041-8205
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Container-title:The Astrophysical Journal Letters
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language:
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Short-container-title:ApJL
Author:
Arzoumanian Zaven, Baker Paul T.ORCID, Blecha LauraORCID, Blumer HarshaORCID, Brazier Adam, Brook Paul R.ORCID, Burke-Spolaor SarahORCID, Bécsy BenceORCID, Casey-Clyde J. AndrewORCID, Charisi MariaORCID, Chatterjee ShamiORCID, Chen SiyuanORCID, Cordes James M.ORCID, Cornish Neil J.ORCID, Crawford FronefieldORCID, Cromartie H. ThankfulORCID, DeCesar Megan E.ORCID, Demorest Paul B.ORCID, Dolch TimothyORCID, Drachler Brendan, Ellis Justin A., Ferrara E. C.ORCID, Fiore WilliamORCID, Fonseca EmmanuelORCID, Freedman Gabriel E.ORCID, Garver-Daniels NathanORCID, Gentile Peter A.ORCID, Glaser JosephORCID, Good Deborah C.ORCID, Gültekin KayhanORCID, Hazboun Jeffrey S.ORCID, Jennings Ross J.ORCID, Johnson Aaron D.ORCID, Jones Megan L.ORCID, Kaiser Andrew R.ORCID, Kaplan David L.ORCID, Kelley Luke ZoltanORCID, Key Joey ShapiroORCID, Laal NimaORCID, Lam Michael T.ORCID, Lamb William GORCID, W. Lazio T. Joseph, Lewandowska NataliaORCID, Liu TingtingORCID, Lorimer Duncan R.ORCID, Luo JingORCID, Lynch Ryan S.ORCID, Madison Dustin R.ORCID, McEwen AlexanderORCID, McLaughlin Maura A.ORCID, Mingarelli Chiara M. F.ORCID, Ng CherryORCID, Nice David J.ORCID, Ocker Stella KochORCID, Olum Ken D.ORCID, Pennucci Timothy T.ORCID, Pol Nihan S.ORCID, Ransom Scott M.ORCID, Ray Paul S.ORCID, Romano Joseph D.ORCID, Shapiro-Albert Brent J.ORCID, Siemens XavierORCID, Simon JosephORCID, Siwek MagdalenaORCID, Spiewak RenéeORCID, Stairs Ingrid H.ORCID, Stinebring Daniel R.ORCID, Stovall KevinORCID, Swiggum Joseph K.ORCID, Sydnor JessicaORCID, Taylor Stephen R.ORCID, Turner Jacob E.ORCID, Vallisneri MicheleORCID, Vigeland Sarah J.ORCID, Wahl Haley M.ORCID, Walsh GregoryORCID, Witt Caitlin A.ORCID, Young OliviaORCID,
Abstract
Abstract
Pulsar timing array collaborations, such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), are seeking to detect nanohertz gravitational waves emitted by supermassive black hole binaries formed in the aftermath of galaxy mergers. We have searched for continuous waves from individual circular supermassive black hole binaries using NANOGrav’s recent 12.5 yr data set. We created new methods to accurately model the uncertainties on pulsar distances in our analysis, and we implemented new techniques to account for a common red-noise process in pulsar timing array data sets while searching for deterministic gravitational wave signals, including continuous waves. As we found no evidence for continuous waves in our data, we placed 95% upper limits on the strain amplitude of continuous waves emitted by these sources. At our most sensitive frequency of 7.65 nHz, we placed a sky-averaged limit of h
0 < (6.82 ± 0.35) × 10−15, and h
0 < (2.66 ± 0.15) × 10−15 in our most sensitive sky location. Finally, we placed a multimessenger limit of
<
(
1.41
±
0.02
)
×
10
9
M
⊙
on the chirp mass of the supermassive black hole binary candidate 3C 66B.
Funder
National Science Foundation
Publisher
American Astronomical Society
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
6 articles.
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