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The Radius of the Neutron Star PSR J0614-3329 from NICER Data
M. C. Miller, A. J. Dittmann, I. M. Holt +14
Neutron star radius measurements, particularly using X-ray data collected with the Neutron star Interior Composition Explorer (NICER), have provided invaluable information for mode…
The Radius of PSR J0437-4715 from NICER Data
M. C. Miller, A. J. Dittmann, I. M. Holt +12
Neutron star Interior Composition Explorer (NICER) data have been used to estimate the masses and radii of the rotation-powered millisecond pulsars PSR J00300451, PSR J074066…
Pulsed radio emission from a Central Compact Object
Lei Zhang, Alessandro Ridolfi, Di Li +7
Located at the centres of supernova remnants, central compact objects (CCOs) are among the most puzzling neutron stars. CCOs are bright in thermal X-rays, yet have evaded detection…
Verification of Cas A neutron star cooling rate using Chandra HRC-S observations
Jiaqi Zhao, Craig O. Heinke, Peter S. Shternin +3
The young neutron star (NS) in the Cassiopeia A (Cas A) supernova remnant is a fascinating test for theories of NS cooling. Chandra observations have indicated that its surface tem…
Constraining the Neutron Star Mass-Radius Relation and Dense Matter Equation of State with NICER. I. The Millisecond Pulsar X-ray Data Set
Slavko Bogdanov, Sebastien Guillot, Paul S. Ray +27
We present the set of deep Neutron Star Interior Composition Explorer (NICER) X-ray timing observations of the nearby rotation-powered millisecond pulsars PSRs J0437-4715, J0030+04…
PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
M. C. Miller, F. K. Lamb, A. J. Dittmann +18
Neutron stars are not only of astrophysical interest, but are also of great interest to nuclear physicists, because their attributes can be used to determine the properties of the…
A NICER view of PSR J0030+0451: Implications for the dense matter equation of state
G. Raaijmakers, T. E. Riley, A. L. Watts +14
Both the mass and radius of the millisecond pulsar PSR J0030+0451 have been inferred via pulse-profile modeling of X-ray data obtained by NASA's NICER mission. In this Letter we st…
Modelling decretion discs in Be/X-ray binaries
R. O. Brown, M. J. Coe, W. C. G. Ho +1
As the largest population of high mass X-ray binaries, Be/X-ray binaries provide an excellent laboratory to investigate the extreme physics of neutron stars. It is generally accept…
Modelling the observable behaviour of SXP 5.05
R. O. Brown, M. J. Coe, W. C. G. Ho +1
SXP 5.05 is a Be/X-ray binary with a neutron star companion located in the Small Magellanic Cloud. It was first detected in 2013, and later that year, SXP 5.05 underwent a massive…
Diffusive nuclear burning in cooling simulations and application to new temperature data of the Cassiopeia A neutron star
M. J. P. Wijngaarden, Wynn C. G. Ho, Philip Chang +4
A critical relation in the study of neutron star cooling is the one between surface temperature and interior temperature. This relation is determined by the composition of the neut…
The radius of the quiescent neutron star in the globular cluster M13
A. W. Shaw, C. O. Heinke, A. W. Steiner +5
X-ray spectra of quiescent low-mass X-ray binaries containing neutron stars can be fit with atmosphere models to constrain the mass and the radius. Mass-radius constraints can be u…
Lense-Thirring precession in ULXs as a possible means to constrain the neutron star equation-of-state
M. J. Middleton, P. C. Fragile, M. Bachetti +11
The presence of neutron stars in at least three ultraluminous X-ray sources is now firmly established and offers an unambiguous view of super-critical accretion. All three systems…
Using gravitational-wave data to constrain dynamical tides in neutron star binaries
N. Andersson, W. C. G. Ho
We discuss the role of dynamical tidal effects for inspiralling neutron star binaries, focussing on features that may be considered "unmodelled" in gravitational-wave searches. In…
Constraining the Mass and Radius of Neutron Stars in Globular Clusters
A. W. Steiner, C. O. Heinke, S. Bogdanov +4
We analyze observations of eight quiescent low-mass X-ray binaries in globular clusters and combine them to determine the neutron star mass-radius curve and the equation of state o…
Improved Mass and Radius Constraints for Quiescent Neutron Stars in Omega Cen and NGC 6397
C. O. Heinke, H. N. Cohn, P. M. Lugger +8
We use Chandra and XMM observations of the globular clusters Cen and NGC 6397 to measure the spectrum of their quiescent neutron stars (NSs), and thus to constrain the allowed…
XMM-Newton observation of the highly magnetised accreting pulsar Swift J045106.8-694803: Evidence of a hot thermal excess
E. S. Bartlett, M. J. Coe, W. C. G. Ho
Several persistent, low luminosity (L_X 10^{34} erg s^{-1}), long spin period (P>100 s) High Mass X-ray Binaries have been reported with blackbody components with temperatures >1 k…
Measuring the Cooling of the Neutron Star in Cassiopeia A with all Chandra X-ray Observatory Detectors
K. G. Elshamouty, C. O. Heinke, G. R. Sivakoff +5
The thermal evolution of young neutron stars (NSs) reflects the neutrino emission properties of their cores. Heinke et al. (2010) measured a 3.6+/-0.6% decay in the surface tempera…
Neutron star atmosphere composition: the quiescent, low-mass X-ray binary in the globular cluster M28
Mathieu Servillat, C. O. Heinke, W. C. G. Ho +4
Using deep Chandra observations of the globular cluster M28, we study the quiescent X-ray emission of a neutron star in a low-mass X-ray binary in order to constrain the chemical c…