XRBcats: Galactic low-mass X-ray binary catalogue

Avakyan, A. L.; Neumann, M.; Zainab, A.; Doroshenko, V.; Wilms, J.; Santangelo, A.

doi:10.1051/0004-6361/202346522

Cited by 32 publications

(5 citation statements)

References 103 publications

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“…After the publication of our previous HMXB catalogue and during the writing of this paper, a similar LMXB catalogue was released by Avakyan et al (2023), where the authors list 349 Galactic LMXBs. We have similar approaches, as the authors also propose to update their database based on community inputs.…”

Section: Discussionmentioning

confidence: 99%

A catalogue of high-mass X-ray binaries in the Galaxy: from the INTEGRAL to theGaiaera

Fortin

García

Simaz-Bunzel

et al. 2023

A&A

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Context. High-mass X-ray binaries (HMXBs) are a particular class of high-energy sources that require multi-wavelength observational efforts to be properly characterised. New identifications and the refinement of previous measurements are regularly published in the literature by independent teams of researchers and might, when they are collected in a catalogue, offer a tool for facilitating further studies of HMXBs. Aims. We update previous instances of HMXB catalogues in the Galaxy and provide the community easy access to the most complete set of observables on Galactic HMXBs. In addition to the fixed version that is available in Vizier, we also aim to host and maintain a dynamic version that can be updated upon request from users. Any modification will be logged in this version. Methods. Using previous HMXB catalogues supplemented by listings of hard X-ray sources detected in the past 20 years, we produced a base set of HMXBs and candidates by means of identifier and sky coordinate cross matches. We queried in Simbad for unreferenced HMXBs. We searched for as many hard X-ray, soft X-ray, optical, and infrared counterparts to the HMXBs as we could in well-known catalogues and compiled their coordinates. Each HMXB was subjected to a meticulous search in the literature to find relevant measurements and the original reference. Results. We provide a catalogue of 152 HMXBs in the Galaxy with their best known coordinates, the spectral type of the companion star, systemic radial velocities, component masses, orbital period, eccentricity, and spin period when available. We also provide the coordinates and identifiers for each counterpart we found from hard X-rays to the near-infrared, including 111 counterparts from the recent Gaia DR3 catalogue.

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Section: Discussionmentioning

confidence: 99%

A catalogue of high-mass X-ray binaries in the Galaxy: from the INTEGRAL to theGaiaera

Fortin

García

Simaz-Bunzel

et al. 2023

A&A

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“…Note that X-ray binary surveys are far from complete, as X-ray binaries can be undetectable in quiescence (e.g., Bird et al 2007;Belczynski & Ziolkowski 2009). New X-ray binaries have also been discovered since we did our sampling (Avakyan et al 2023;Neumann et al 2023). Nonetheless, we assume that our sample is as complete as possible and that our results accurately represent the known population of X-ray binaries.…”

Section: The Samplementioning

confidence: 94%

The First High-contrast Images of Near High-mass X-Ray Binaries with Keck/NIRC2

Prasow-Émond,

Hlavacek-Larrondo,

Fogarty

et al. 2024

ApJ

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Although the study of X-ray binaries has led to major breakthroughs in high-energy astrophysics, their circumbinary environment at scales of ∼100–10,000 au has not been thoroughly investigated. In this paper, we undertake a novel and exploratory study by employing direct and high-contrast imaging techniques on a sample of X-ray binaries, using adaptive optics and the vortex coronagraph on Keck/NIRC2. High-contrast imaging opens up the possibility to search for exoplanets, brown dwarfs, circumbinary companion stars, and protoplanetary disks in these extreme systems. Here we present the first near-infrared high-contrast images of 13 high-mass X-ray binaries located within ∼2–3 kpc. The key results of this campaign involve the discovery of several candidate circumbinary companions ranging from substellar (brown dwarf) to stellar masses. By conducting an analysis based on Galactic population models, we discriminate sources that are likely background/foreground stars and isolate those that have a high probability (≳60%–99%) of being gravitationally bound to the X-ray binary. This paper seeks to establish a preliminary catalog for future analyses of proper motion and subsequent observations. With our preliminary results, we calculate the first estimate of the companion frequency and the multiplicity frequency for X-ray binaries: ≈0.6 and 1.8 ± 0.9, respectively, considering only the sources that are most likely bound to the X-ray binary. In addition to extending our comprehension of how brown dwarfs and stars can form and survive in such extreme systems, our study opens a new window to our understanding of the formation of X-ray binaries.

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“…It is also expected that SKA-VLBI will enable the exploration of fainter X-ray binaries and allow astronomers to monitor their light curves (e.g., Ng et al 2024) with high sensitivity. Samples of X-ray binaries can be obtained from the Galactic high mass X-ray binary catalog (Neumann et al 2023) and the Galactic low mass X-ray binary catalog (Avakyan et al 2023).…”

Section: Binary or Multiple Stellar Systemsmentioning

confidence: 99%

VLBI with SKA: Possible Arrays and Astrometric Science

Li,

Xu,

et al. 2024

Res. Astron. Astrophys.

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The next generation of very long baseline interferometry (VLBI) is stepping into the era of microarcsecond ($\mu$as) astronomy, and pushing astronomy, especially astrometry, to new heights. VLBI with the Square Kilometre Array (SKA), SKA-VLBI, will increase current sensitivity by an order of magnitude, and reach astrometric precision routinely below 10 $\mu$as, even challenging 1 $\mu$as. This advancement allows precise parallax and proper motion measurements of various celestial objects. Such improvements can be used to study objects (including isolated objects, and binary or multiple systems) in different stellar stages (such as star formation, main-sequence stars, asymptotic giant branch stars, pulsars, black holes, white dwarfs, etc.), unveil the structure and evolution of complex systems (such as the Milky Way), benchmark the international celestial reference frame, and reveal cosmic expansion. Furthermore, the theory of general relativity can also be tested with SKA-VLBI using precise measurements of light deflection under the gravitational fields of different solar system objects and the perihelion precession of solar system objects.

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XRBcats: Galactic low-mass X-ray binary catalogue

Cited by 32 publications

References 103 publications

A catalogue of high-mass X-ray binaries in the Galaxy: from the INTEGRAL to theGaiaera

A catalogue of high-mass X-ray binaries in the Galaxy: from the INTEGRAL to theGaiaera

The First High-contrast Images of Near High-mass X-Ray Binaries with Keck/NIRC2

VLBI with SKA: Possible Arrays and Astrometric Science

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