1.7k citations · 8.6k across the 103 of their papers we have counts for
13 papers · 1 filter
Multiwavelength monitoring and X-ray brightening of Be X-ray binary PSR J2032+4127/MT91 213 on its approach to periastron
Wynn C. G. Ho, C. -Y. Ng, Andrew G. Lyne +5
The radio and gamma-ray pulsar PSR J2032+4127 was recently found to be in a decades-long orbit with the Be star MT91 213, with the pulsar moving rapidly towards periastron. This bi…
Ejector and propeller spin-down: How might a superluminous supernova millisecond magnetar become the 6.67 hr pulsar in RCW103
Wynn C. G. Ho, Nils Andersson
The X-ray source 1E 161348-5055 in the supernova remnant RCW 103 recently exhibited X-ray activity typical of magnetars, i.e. neutron stars with magnetic fields > 10^14-10^15 G. Ho…
Pinning down the superfluid and measuring masses using pulsar glitches
Wynn C. G. Ho, Cristobal M. Espinoza, Danai Antonopoulou +1
Pulsars are known for their superb timing precision, although glitches can interrupt the regular timing behavior when the stars are young. These glitches are thought to be caused b…
Magnetic field growth in young glitching pulsars with a braking index
Wynn C. G. Ho
In the standard scenario for spin evolution of isolated neutron stars, a young pulsar slows down with a surface magnetic field B that does not change. Thus the pulsar follows a con…
Buoyancy and g-modes in young superfluid neutron stars
A. Passamonti, N. Andersson, W. C. G. Ho
We consider the local dynamics of a realistic neutron star core, including composition gradients, superfluidity and thermal effects. The main focus is on the gravity g-modes, which…
Gravitational waves from rapidly rotating neutron stars
Brynmor Haskell, Nils Andersson, Caroline D`Angelo +8
Rapidly rotating neutron stars in Low Mass X-ray Binaries have been proposed as an interesting source of gravitational waves. In this chapter we present estimates of the gravitatio…
Implications of an r-mode in XTE J1751-305: Mass, radius and spin evolution
N. Andersson, D. I. Jones, W. C. G. Ho
Recently Strohmayer and Mahmoodifar presented evidence for a coherent oscillation in the X-ray light curve of the accreting millisecond pulsar XTE J1751-305, using data taken by RX…
Equilibrium spin pulsars unite neutron star populations
Wynn C. G. Ho, H. Klus, M. J. Coe +1
Many pulsars are formed with a binary companion from which they can accrete matter. Torque exerted by accreting matter can cause the pulsar spin to increase or decrease, and over l…
Rotational evolution of young pulsars due to superfluid decoupling
Wynn C. G. Ho, Nils Andersson
Pulsars are rotating neutron stars that are seen to slow down, and the spin-down rate is thought to be due to magnetic dipole radiation. This leads to a prediction for the braking…
More than meets the eye: magnetars in disguise
Wynn C. G. Ho
It has recently been proposed that radio emission from magnetars can be evaluated using a "fundamental plane" in parameter space between pulsar voltage gap and ratio of X-ray lumin…
Pulsar glitches: The crust is not enough
N. Andersson, K. Glampedakis, W. C. G. Ho +1
Pulsar glitches are traditionally viewed as a manifestation of vortex dynamics associated with a neutron superfluid reservoir confined to the inner crust of the star. In this Lette…
Constraining the physics of the r-mode instability in neutron stars with X-ray and UV observations
Brynmor Haskell, Nathalie Degenaar, Wynn C. G. Ho
Rapidly rotating Neutron Stars in Low Mass X-ray Binaries (LMXBs) may be an interesting source of Gravitational Waves (GWs). In particular, several modes of stellar oscillation may…
Cooling neutron star in the Cassiopeia~A supernova remnant: Evidence for superfluidity in the core
Peter S. Shternin, Dmitry G. Yakovlev, Craig O. Heinke +2
According to recent results of Ho & Heinke (2009) and Heinke & Ho (2010), the Cassiopeia A supernova remnant contains a young neutron star which has carbon atmosphere and shows not…