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New long-term braking index measurements for glitching pulsars using a glitch-template method
(OXFORD UNIV PRESS, 2017)
Braking index measurements offer the opportunity to explore the processes affecting the longterm spin evolution of pulsars and possible evolutionary connections between the various pulsar populations. In most cases, such ...
The nature of the companion of PSR J1719-1438: a white dwarf or an exotic object?
(NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCESBEIJING, 2012)
We raise the possibility that the very dense, compact companion of PSR J1719-1438, which has a Jupiter-like mass, is an exotic quark object rather than a light helium or carbon white dwarf. The exotic hypothesis naturally ...
Exploring the formation of 'Black Widows'
(Wiley Blackwell Publishing, Inc, 2015-06)
Black Widows (BWs) are a class of binary millisecond pulsars orbiting together with very low mass donor stars ( < 10−2 M⊙). After the discovery of eclipses in the first known BW, PSR 1957+20, they are considered as close ...
A refined search for pulsations in white dwarf companions to millisecond pulsars
(Wiley Blackwell Publishing, Inc, 2018-09)
We present optical high-speed photometry of three millisecond pulsars with low-mass (< 0.3M⊙)white dwarf companions, bringing the total number of such systemswith follow-up time-series photometry to five. We confirm the ...