Results 31 to 40 of about 2,637 (230)
Periodicity Search for Pulsar Binaries with TESS [PDF]
The Astrophysical Journal Letters, 2020 Abstract Pulsar binaries, in particular redback systems, provide good sources to study the pulsar wind flow and its interaction with the companion stars. Fermi-LAT have proposed probable pulsar binary candidates in its catalogs. An orbital modulation search of binary candidates is an effective way to identify pulsar binary sources from ...
Partha Sarathi Pal +6 more
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A massive millisecond pulsar in an eccentric binary [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 The recent discovery of a population of eccentric (e ~ 0.1) millisecond pulsar (MSP) binaries with low-mass white dwarf companions in the Galactic field represents a challenge to evolutionary models that explain MSP formation as recycling: all such models predict that the orbits become highly circularised during a long period of accretion.
E. D. Barr +7 more
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Gamma-ray binaries: pulsars in disguise? [PDF]
Astronomy & Astrophysics, 2006 20 pages, 20 figures, accepted for publication in A& ...
Guillaume Dubus, Guillaume Dubus
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CHIME Discovery of a Binary Pulsar with a Massive Nondegenerate Companion
The Astrophysical Journal, 2023 Of the more than 3000 radio pulsars currently known, only ∼300 are in binary systems, and only five of these consist of young pulsars with massive nondegenerate companions.
Bridget C. Andersen +27 more
doaj +1 more source
On the Orbital Properties of Millisecond Pulsar Binaries [PDF]
The Astrophysical Journal, 2018 Abstract We report a detailed analysis of the orbital properties of a binary millisecond pulsar (MSP) with a white dwarf (WD) companion. Positive correlations between the orbital period P b and eccentricity ϵ are found in two classes of MSP binaries with a He WD and with a CO/ONeMg WD, though their trends are different.
Qin Han +6 more
openaire +4 more sources
Binary pulsars as dark-matter probes [PDF]
Physical Review D, 2015 During the motion of a binary pulsar around the Galactic center, the pulsar and its companion experience a wind of dark-matter particles that can affect the orbital motion through dynamical friction. We show that this effect produces a characteristic seasonal modulation of the orbit and causes a secular change of the orbital period whose magnitude can ...
Paolo Pani, Paolo Pani
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Green Bank Telescope Discovery of the Redback Binary Millisecond Pulsar PSR J0212+5321
The Astrophysical Journal, 2023 We report the discovery of a 2.11 ms binary millisecond pulsar during a targeted search of the redback optical candidate coincident with the γ -ray source 3FGL J0212.5+5320 using the Robert C.
Karen I. Perez +3 more
doaj +1 more source
Single Millisecond Pulsars from Dynamical Interaction Processes in Dense Star Clusters
The Astrophysical JournalGlobular clusters (GCs) are particularly efficient at forming millisecond pulsars. Among these pulsars, about half lack a companion star, a significantly higher fraction than in the Galactic field.
Claire S. Ye +3 more
doaj +1 more source
The Astrophysical Journal, 2023 The fast Fourier transform (FFT) based periodicity search methods provide an efficient way to search for millisecond and binary pulsars but encounter significant sensitivity degradation while searching for long period and short duty cycle pulsars.
S. Singh +5 more
doaj +1 more source
Advanced Intelligent Systems, EarlyView.A compressed sensing (CS)‐based feature selection method is proposed to select the most informative elements in the radiomic features extracted from medical images of personalized ultra‐fractionated stereotactic adaptive treatment. The CS‐based approach is able to simplify the feature selection process and enhance the accuracy and robustness of a ...
Yajun Yu +3 more
wiley +1 more source