English
Related papers

Related papers: Evidence for a minimum ellipticity in millisecond …

200 papers

We investigate the spin-period evolutions of recycled pulsars in binary accreting systems. Taking both the accretion induced field decay and spin-up into consideration, we calculate their spin-period evolutions influenced by the initial…

High Energy Astrophysical Phenomena · Physics 2015-05-20 J. Wang , C. M. Zhang , Y. H. Zhao , Y. Kojima , H. X. Yin , L. M. SOng

The magnetic fields of neutron stars have a large range (~3e10 - 1e15 G). There may be a tendency for more highly magnetized neutron stars to come from more massive stellar progenitors, but other factors must also play a role. When combined…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Roger A. Chevalier

Typical radio pulsars are magnetized neutron stars that are born rapidly rotating and slow down as they age on time scales of 10 to 100 million years. However, millisecond radio pulsars spin very rapidly even though many are billions of…

Astrophysics · Physics 2009-10-30 Deepto Chakrabarty , Edward H. Morgan

So far, only transient Gravitational waves (GWs) produced by catastrophic events of extra-galactic origin have been detected. However, it is generally believed that there should be also continuous sources of GWs within our galaxy, such as…

High Energy Astrophysical Phenomena · Physics 2022-02-09 Elia Giliberti , Gabriele Cambiotti

We consider a population of small, high-velocity cosmic string loops. We assume the typical length of these loops is determined by the gravitational radiation scale and use the results of \cite{Polchinski:2007rg} which pointed out their…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Florian Dubath , Jorge V. Rocha

In the core of a canonical spinning magnetized neutron star(NS) a nearly uniform superfluid neutron vortex-array interacts strongly with a twisted array of magnetic flux-tubes threading the core's superconducting protons. One consequence is…

Astrophysics · Physics 2007-05-23 M. Ruderman

We summarize the state of the art and future directions in using millisecond radio pulsars to test gravitation and measure intrinsic, fundamental parameters of the pulsar systems. As discussed below, such measurements continue to yield…

High Energy Astrophysical Phenomena · Physics 2019-03-21 Emmanuel Fonseca , Paul B. Demorest , Scott M. Ransom , Ingrid H. Stairs

We investigate the statistical evolution of magnetic neutron stars recycled in Low Mass Binary (LMB) systems, simulating synthetic populations. Irrespective to the details of the physical models, we find to be significant the fraction of…

Astrophysics · Physics 2007-05-23 Andrea Possenti , Monica Colpi , Ulrich Geppert , Luciano Burderi , Nichi D'Amico

We investigate the dependence of pulse amplitudes of accreting millisecond pulsars on the masses of the neutron stars. Because the pulsation amplitudes are suppressed as the neutron stars become more massive, the probability of detection of…

Astrophysics · Physics 2011-02-11 Feryal Ozel

Some neutron stars may be born spinning fast and with strong magnetic fields---the so-called \emph{millisecond magnetars}. It is important to understand how a star's magnetic axis moves with respect to the spin axis in the star's early…

High Energy Astrophysical Phenomena · Physics 2019-09-04 D I Jones

Continuous gravitational waves signals, emitted by asymmetric spinning neutron stars, are among the main targets of current detectors like Advanced LIGO and Virgo. In the case of sources, like pulsars, which rotational parameters are…

General Relativity and Quantum Cosmology · Physics 2017-06-28 S. Mastrogiovanni , P. Astone , S. D'Antonio , S. Frasca , G. Intini , P. Leaci , A. Miller , C. Palomba , O. J. Piccinni , A. Singhal

Rotating neutron stars (NSs) are promising sources of gravitational waves (GWs) in the frequency band of ground-based detectors. They are expected to emit quasi-monochromatic, long-duration GW signals, called continuous waves (CWs), due to…

General Relativity and Quantum Cosmology · Physics 2022-04-20 Federico De Lillo , Jishnu Suresh , Andrew L. Miller

We report on the follow-up observations of circularly polarized sources identified in the MeerKAT image-based survey of the Galactic bulge. Using the Parkes radio telescope, we observed sixteen circularly polarized sources with the UWL…

High Energy Astrophysical Phenomena · Physics 2026-03-17 Rahul Sengar , Akash Anumarlapudi , David L. Kaplan , Dale A. Frail , Scott D. Hyman , Emil Polisensky

Millisecond pulsars (MSPs) are spun up during their accretion phase in a binary system. The exchange of angular momentum between the accretion disk and the star tends to align the spin and orbital angular momenta on a very short time scale…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Alexandra Lorange , Jérôme Pétri , Mattéo Sautron , Vincent Vigon

A unified strategy is developed that can be used to search for millisecond pulsars (MSPs) with ~solar mass companions (including neutron star companions in double neutron star binaries [DNSBs]) belonging to both very short period binaries,…

Astrophysics · Physics 2007-05-23 John Middleditch

Observations of the spin distribution of rapidly rotating neutron stars show evidence for a lack of stars spinning at frequencies larger than $f\approx 700$ Hz, well below the predictions of theoretical equations of state. This has…

High Energy Astrophysical Phenomena · Physics 2018-12-05 B. Haskell , J. L. Zdunik , M. Fortin , M. Bejger , R. Wijnands , A. Patruno

It is shown that the drift waves near the light cylinder can cause the modulation of the emission with periods of the order several seconds. These periods explain the intervals between successive pulses observed in "magnetars" and radio…

Astrophysics · Physics 2009-11-11 D. Lomiashvili , G. Machabeli , I. Malov

The LIGO and Virgo Collaborations currently conduct searches for gravitational waves from compact binary coalescences in real-time. For promising candidate events, a sky map and distance estimation are released in low-latency, to facilitate…

High Energy Astrophysical Phenomena · Physics 2019-10-17 Sylvia Biscoveanu , Salvatore Vitale , Carl-Johan Haster

Neutrino oscillations in a core-collapse supernova may be responsible for the observed rapid motions of pulsars. Given the present bounds on the neutrino masses, the pulsar kicks require a sterile neutrino with mass 2-20 keV and a small…

Astrophysics · Physics 2009-11-10 Alexander Kusenko

Gravitational radiation drives an instability in the r-modes of young rapidly rotating neutron stars. This instability is expected to carry away most of the angular momentum of the star by gravitational radiation emission, leaving a star…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Benjamin J. Owen , Lee Lindblom , Curt Cutler , Bernard F. Schutz , Alberto Vecchio , Nils Andersson