An Observationally-Derived Kick Distribution for Neutron Stars in Binary Systems

Abstract

Understanding the natal kicks received by neutron stars (NSs) during formation is a critical component of modelling the evolution of massive binaries. Natal kicks are an integral input parameter for population synthesis codes, and have implications for the formation of double NS systems and their subsequent merger rates. However, many of the standard observational kick distributions that are used are obtained from samples created only from isolated NSs. Kick distributions derived in this way overestimate the intrinsic NS kick distribution. For NSs in binaries, we can only directly estimate the effect of the natal kick on the binary system, instead of the natal kick received by the NS itself. Here, for the first time, we present a binary kick distribution for NSs with low-mass companions. We compile a catalogue of 145 NSs in low-mass binaries with the best available constraints on proper motion, distance, and systemic radial velocity. For each binary, we use a three-dimensional approach to estimate its binary kick. We discuss the implications of these kicks on system formation, and provide a parametric model for the overall binary kick distribution, for use in future theoretical modelling work. We compare our results with other work on isolated NSs and NSs in binaries, finding that the NS kick distributions fit using only isolated pulsars underestimate the fraction of NSs that receive low kicks. We discuss the implications of our results on modelling double NS systems, and provide suggestions on how to use our results in future theoretical works.

Accepted for publication in MNRAS. 28 pages, 19 figures, 8 tables

References in corpus (53)

• Array Programming with NumPy
• Binary interaction dominates the evolution of massive stars
• galpy: A Python Library for Galactic Dynamics
• Tests of general relativity from timing the double pulsar
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• Thermonuclear (type-I) X-ray bursts observed by the Rossi X-ray Timing Explorer
• Formation of Double Neutron Star Systems
• A Radio Pulsar/X-ray Binary Link
• The relativistic pulsar-white dwarf binary PSR J1738+0333 II. The most stringent test of scalar-tensor gravity
• The Evolution of Compact Binary Star Systems
• Catalogue of high-mass X-ray binaries in the Galaxy ($4^{th}$ edition)
• A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition)
• The Vertical Structure of Warm Ionised Gas in the Milky Way
• Instability of a stalled accretion shock: evidence for the advective-acoustic cycle
• Investigating stellar-mass black hole kicks
• Inferring the eccentricity distribution
• The observed velocity distribution of young pulsars
• The Green Bank Northern Celestial Cap Pulsar Survey - I: Survey Description, Data Analysis, and Initial Results
• Hydrodynamics of core-collapse supernovae and their progenitors
• Neutron star kicks by the gravitational tug-boat mechanism in asymmetric supernova explosions: progenitor and explosion dependence
• Three Millisecond Pulsars in FERMI LAT Unassociated Bright Sources
• Discovery of PSR J1227-4853: A transition from a low-mass X-ray binary to a redback millisecond pulsar
• Estimating distances from parallaxes. II. Performance of Bayesian distance estimators on a Gaia-like catalogue
• Hydrodynamical Neutron Star Kicks in Three Dimensions
• Simple recipes for compact remnant masses and natal kicks
• Optical spectroscopy and demographics of redback millisecond pulsar binaries
• Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations
• Detection of the Irradiated Donor in the LMXBs 4U 1636-536 (=V801 Ara) and 4U 1735-444 (=V926 Sco)
• A comparison of Galactic electron density models using PyGEDM
• Electron Density Structure of the Local Galactic Disk
• Implications of a VLBI Distance to the Double Pulsar J0737-3039A/B
• Intermediate long X-ray bursts from the ultra-compact binary source SLX 1737-282
• Distances to Galactic X-ray Binaries with Gaia DR2
• A Massive Millisecond Pulsar in an Eccentric Binary
• Gamma-ray Timing of Redback PSR J2339-0533: Hints for Gravitational Quadrupole Moment Changes
• Unveiling the redback nature of the low-mass X-ray binary XSSJ1227.0-4859 through optical observations
• 21-year timing of the black-widow pulsar J2051-0827
• The Parallax and Proper Motion of PSR J0030+0451
• The donor of Aquila X-1 revealed by high angular resolution near-infrared spectroscopy
• 1FGL J1417.7-4407: A likely gamma-ray bright binary with a massive neutron star and a giant secondary
• PSR J2322$-$2650 -- A low-luminosity millisecond pulsar with a planetary-mass companion
• X-ray Reflection and An Exceptionally Long Thermonuclear Helium Burst from IGR J17062-6143
• Combined analysis of neutron star natal kicks using proper motions and parallax measurements for radio pulsars and Be X-ray binaries
• The High Time Resolution Universe Survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companions
• Infrared Spectroscopy of Symbiotic Stars. XII. The Neutron Star SyXB System 4U 1700+24 = V934 Herculis
• Timing of Eight Binary Millisecond Pulsars Found with Arecibo in Fermi-LAT Unidentified Sources
• The isotopic 6Li/7Li ratio in Cen X-4 and the origin of Li in X-ray binaries
• Discovery and timing of three millisecond pulsars in radio and gamma-rays with the GMRT and Fermi-LAT
• PSR J1306--40: An X-ray Luminous Redback with an Evolved Companion
• A multi-wavelength study of nearby millisecond pulsar PSR J1400$-$1431: improved astrometry & an optical detection of its cool white dwarf companion
• Identifying the formation mechanism of redback pulsars
• The SUrvey for Pulsars and Extragalactic Radio Bursts V: Recent Discoveries and Full Timing Solutions
• Limits on the Mass, Velocity and Orbit of PSR J1933$-$6211