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The NANOGrav 11-Year Data Set: Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries
K. Aggarwal, Z. Arzoumanian, P. T. Baker +60
Observations indicate that nearly all galaxies contain supermassive black holes (SMBHs) at their centers. When galaxies merge, their component black holes form SMBH binaries (SMBHB…
The NANOGrav 11-year Data Set: Pulse Profile Variability
P. R. Brook, A. Karastergiou, M. A. McLaughlin +30
Access to 50 years of data has led to the discovery of pulsar emission and rotation variability on timescales of months and years. Most of this long-term variability has been seen…
The NANOGrav 12.5-Year Data Set: The Frequency Dependence of Pulse Jitter in Precision Millisecond Pulsars
M. T. Lam, M. A. McLaughlin, Z. Arzoumanian +25
Low-frequency gravitational-wave experiments require the highest timing precision from an array of the most stable millisecond pulsars. Several known sources of noise on short time…
PSR J2234+0611: A new laboratory for stellar evolution
K. Stovall, P. C. C. Freire, J. Antoniadis +30
We report timing results for PSR J2234+0611, a 3.6-ms pulsar in a 32-day, eccentric (e = 0.13) orbit with a helium white dwarf companion discovered as part of the Arecibo Observato…
Correlated emission and spin-down variability in radio pulsars
Benjamin Shaw, Benjamin W. Stappers, Paul R. Brook +3
The recent revelation that there are correlated period derivative and pulse shape changes in pulsars has dramatically changed our understanding of timing noise as well as the relat…