Ultra-compact X-ray binaries with He star companions
arXiv:2106.01369 · doi:10.1093/mnras/stab2032
Abstract
Ultra-compact X-ray binaries (UCXBs) are low-mass X-ray binaries with hydrogen-deficient mass-donors and ultra-short orbital periods. They have been suggested to be the potential Laser Interferometer Space Antenna (LISA) sources in the low-frequency region. Several channels for the formation of UCXBs have been proposed so far. In this article, we carried out a systematic study on the He star donor channel, in which a neutron star (NS) accretes matter from a He main-sequence star through Roche-lobe overflow, where the mass-transfer is driven by gravitational wave radiation. Firstly, we followed the long-term evolution of the NS+He main-sequence star binaries by employing the stellar evolution code Modules for Experiments in Stellar Astrophysics, and thereby obtained the initial parameter spaces for the production of UCXBs. We then used these results to perform a detailed binary population synthesis approach to obtain the Galactic rates of UCXBs through this channel. We estimate the Galactic rates of UCXBs appearing as LISA sources to be through this channel, and the number of such UCXB-LISA sources in the Galaxy can reach about calibrated by observations. The present work indicates that the He star donor channel may contribute significantly to the Galactic UCXB formation rate. We found that the evolutionary tracks of UCXBs through this channel can account for the location of the five transient sources with relatively long orbital periods quite well. We also found that such UCXBs can be identified by their locations in the mass-transfer rate versus the orbital period diagram.
21 pages, 9 figures, 1 table, accepted for publication in MNRAS
References in corpus (42)
- Modules for Experiments in Stellar Astrophysics (MESA)
- GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
- Modules for Experiments in Stellar Astrophysics (MESA): Pulsating Variable Stars, Rotation, Convective Boundaries, and Energy Conservation
- Laser Interferometer Space Antenna
- Thermonuclear (type-I) X-ray bursts observed by the Rossi X-ray Timing Explorer
- A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition)
- Six new candidate ultracompact X-ray binaries
- The LISA-Taiji network
- Science with the TianQin Observatory: Preliminary results on Galactic double white dwarf binaries
- The formation of low-mass helium white dwarfs orbiting pulsars: Evolution of low-mass X-ray binaries below the bifurcation period
- Evolution of Low-Mass Helium Stars in Semidetached Binaries
- Stability of helium accretion discs in ultracompact binaries
- Optical spectroscopy of (candidate) ultra-compact X-ray binaries: constraints on the composition of the donor stars
- Mass transfer in white dwarf-neutron star binaries
- The ultracompact nature of the black hole candidate X-ray binary 47 Tuc X9
- Adiabatic mass loss in binary stars. III. From the base of the red giant branch to the tip of asymptotic giant branch
- Evolution of LMXBs under Different Magnetic Braking Prescriptions
- Accreting Double white dwarf binaries: Implications for LISA
- The Galactic Gravitational wave foreground
- Companion Stars of Type Ia Supernovae
- He-accreting carbon-oxygen white dwarfs and type Ia supernovae
- Low Mass X-ray Binaries: The Effects of the Magnetic Braking Prescription
- Formation of millisecond pulsars with helium white dwarfs, ultra-compact X-ray binaries and gravitational wave sources
- VLT spectroscopy and non-LTE modeling of the C/O-dominated accretion disks in two ultracompact X-ray binaries
- Novel modelling of ultra-compact X-ray binary evolution - stable mass transfer from white dwarfs to neutron stars
- Evolution of intermediate-mass X-ray binaries driven by magnetic braking of Ap/Bp stars: I. ultracompact X-ray binaries
- Formation of the planet around the millisecond pulsar J1719-1438
- Why are pulsar planets rare?
- Long-term luminosity behavior of 14 ultracompact X-ray binaries
- Ultra-compact X-ray binaries as dual-line gravitational-wave sources
- Orbital Evolution of Neutron-Star -- White-Dwarf Binaries by Roche-Lobe Overflow and Gravitational Wave Radiation
- The Galactic LMXB Population and the Galactic Centre Region
- On the progenitors of AM CVn stars as LISA sources: the evolved donor star channel
- Effects of Irradiation on the Evolution of Ultra-compact X-ray Binaries
- Formation of Black Hole Low-Mass X-ray Binaries
- Formation of Binary Millisecond Pulsars by Accretion-Induced Collapse of White Dwarfs under Wind-Driven Evolution
- A Population of Neutron Star Ultraluminous X-ray Sources with A Helium Star Companion
- Evolution of Helium Star - White Dwarf Binaries Leading up to Thermonuclear Supernovae
- State Transitions in Ultracompact Neutron Star LMXBs: towards the Low Luminosity Limit
- A Circumbinary Disk Scenario For The Negative Orbital-Period Derivative Of The Ultracompact X-ray Binary 4u1820-303
- Thermal Timescale Mass Transfer Rates in Intermediate-Mass X-ray Binaries
- On the effect of pulsar evaporation on the cooling of white dwarfs
Cited by in corpus (10)
- The Gravitational-Wave Physics II: Progress
- Formation of millisecond pulsars with long orbital periods by accretion-induced collapse of white-dwarfs
- On the Neutron Star/Black Hole Mass Gap and Black Hole Searches
- Black Hole Ultra-compact X-ray Binaries: Galactic Low-Frequency Gravitational Wave Sources
- Minute-Cadence Observations of the LAMOST Fields with the TMTS: II. Catalogues of Short-Period Variable Stars from the First Two-Year Surveys
- Compact Objects in close orbits as Gravitational Wave Sources: Formation Scenarios and Properties
- Evolving ONe WD+He WD systems to ultra-compact X-ray binaries
- Identification of a Helium Donor Star in NGC 247 ULX-1
- PSR J1953+1844 probably being the descendant of an Ultra-compact X-ray binary
- Population Synthesis of Black Hole Binaries with Compact Star Companions