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000485765 0247_ $$2INSPIRETeX$$aFermi-LAT:2022wah
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000485765 0247_ $$2arXiv$$aarXiv:2204.05226
000485765 0247_ $$2altmetric$$aaltmetric:126134525
000485765 0247_ $$2pmid$$apmid:35389746
000485765 037__ $$aPUBDB-2022-06831
000485765 041__ $$aEnglish
000485765 088__ $$2arXiv$$aarXiv:2204.05226
000485765 082__ $$a320
000485765 1001_ $$0Y.Liu.32$$aLiu, Yijin$$b0
000485765 245__ $$aA gamma-ray pulsar timing array constrains the nanohertz gravitational wave background
000485765 260__ $$c2022
000485765 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s1668766901_22385
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000485765 3367_ $$028$$2EndNote$$aElectronic Article
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000485765 3367_ $$2BibTeX$$aARTICLE
000485765 3367_ $$2DataCite$$aOutput Types/Working Paper
000485765 500__ $$aISSN 1095-9203 not unique: **3 hits**.3 figures in the main text. 3 figures and 8 tables are in the supplementary material
000485765 520__ $$aAfter large galaxies merge, their central supermassive black holes are expected to form binary systems. Their orbital motion should generate a gravitational wave background (GWB) at nanohertz frequencies. Searches for this background use pulsar timing arrays, which perform long-term monitoring of millisecond pulsars at radio wavelengths. We used 12.5 years of Fermi Large Area Telescope data to form a gamma-ray pulsar timing array. Results from 35 bright gamma-ray pulsars place a 95% credible limit on the GWB characteristic strain of 1.0 × 10$^{−14}$ at a frequency of 1 year$^{–1}$. The sensitivity is expected to scale with tobs, the observing time span, as $t^{−13/6}_{obs}$. This direct measurement provides an independent probe of the GWB while offering a check on radio noise models.
000485765 536__ $$0G:(DE-HGF)POF4-613$$a613 - Matter and Radiation from the Universe (POF4-613)$$cPOF4-613$$fPOF IV$$x0
000485765 588__ $$aDataset connected to CrossRef, INSPIRE, Journals: bib-pubdb1.desy.de
000485765 650_7 $$2INSPIRE$$agravitational radiation: background
000485765 650_7 $$2INSPIRE$$apulsar
000485765 650_7 $$2INSPIRE$$agamma ray
000485765 650_7 $$2INSPIRE$$abinary
000485765 650_7 $$2INSPIRE$$anoise
000485765 650_7 $$2INSPIRE$$amonitoring
000485765 650_7 $$2INSPIRE$$ablack hole
000485765 650_7 $$2INSPIRE$$aradio wave
000485765 650_7 $$2INSPIRE$$aGLAST
000485765 650_7 $$2INSPIRE$$agalaxy
000485765 693__ $$0EXP:(DE-H253)Fermi-20170101$$5EXP:(DE-H253)Fermi-20170101$$eThe Fermi Large Area Telescope$$x0
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