INTEGRAL View on cataclysmic variables and symbiotic binaries

Lutovinov, A.; Suleimanov, V.; Luna, G. J. M.; Sazonov, S.; Martino, D. de; Ducci, L.; Doroshenko, V.; Falanga, M.

doi:10.1016/j.newar.2020.101547

Cited by 24 publications

(13 citation statements)

References 134 publications

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“…We expect that up to ∼ 10 3 CVs will be found by ART-XC compared to just several dozen present in existing X-ray-selected samples (e.g. Pretorius et al 2013;de Martino et al 2020;Lutovinov et al 2020). This, together with the availability of accurate distances for many of these objects from the Gaia mission (Gaia Collaboration et al 2018), will enable precise measurement of the X-ray luminosity function of CVs for the first time (Mereminskiy et al 2019).…”

Section: X-ray Binaries and Cataclysmic Variablesmentioning

confidence: 92%

The ART-XC telescope on board the SRG observatory

Pavlinsky

Tkachenko

Levin

et al. 2021

A&A

115

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Astronomical Roentgen Telescope – X-ray Concentrator (ART-XC) is the hard X-ray instrument with grazing incidence imaging optics on board the Spektr-Roentgen-Gamma (SRG) observatory. The SRG observatory is the flagship astrophysical mission of the Russian Federal Space Program, which was successively launched into orbit around the second Lagrangian point (L2) of the Earth-Sun system with a Proton rocket from the Baikonur cosmodrome on 13 July 2019. The ART-XC telescope will provide the first ever true imaging all-sky survey performed with grazing incidence optics in the 4–30 keV energy band and will obtain the deepest and sharpest map of the sky in the energy range of 4–12 keV. Observations performed during the early calibration and performance verification phase as well as during the ongoing all-sky survey that started on 12 December 2019 have demonstrated that the in-flight characteristics of the ART-XC telescope are very close to expectations based on the results of ground calibrations. Upon completion of its four-year all-sky survey, ART-XC is expected to detect approximately 5000 sources (~3000 active galactic nuclei, including heavily obscured ones, several hundred clusters of galaxies, ~1000 cataclysmic variables and other Galactic sources), and to provide a high-quality map of the Galactic background emission in the 4–12 keV energy band. ART-XC is also well suited for discovering transient X-ray sources. In this paper, we describe the telescope, the results of its ground calibrations, the major aspects of the mission, the in-flight performance of ART-XC, and the first scientific results.

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Section: X-ray Binaries and Cataclysmic Variablesmentioning

confidence: 92%

The ART-XC telescope on board the SRG observatory

Pavlinsky

Tkachenko

Levin

et al. 2021

A&A

115

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“…Systems harbouring NSs are a recent addition to this class of celestial objects (Masetti et al 2006(Masetti et al , 2007a(Masetti et al ,b, 2011Bozzo et al 2018;Yungelson, Kuranov & Postnov 2019) and constitute a few per cent of the known total (Merc, Gális & Wolf 2019a), the vast majority E-mail: ulisse.munari@oapd.inaf.it containing WDs (Mukai et al 2016;Sokoloski et al 2017;Akras et al 2019). For some time, a main-sequence star accreting from the RG at very high rates (10 −6 to 10 −4 M yr −1 ) was considered a viable scenario for SySt in general (Kenyon & Webbink 1984), but this has been progressively abandoned in the light of expanding observational data, especially in the far-ultraviolet (UV) and X-rays (Skopal et al 2006;Sokoloski et al 2006;Mohamed & Podsiadlowski 2012;Luna et al 2013;Skopal & Cariková 2015;Lutovinov et al 2020).…”

Section: Introductionmentioning

confidence: 99%

The GALAH survey and symbiotic stars – I. Discovery and follow-up of 33 candidate accreting-only systems

Munari

Traven

Masetti

et al. 2021

Monthly Notices of the Royal Astronomical Society

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We have identified a first group of 33 new candidates for symbiotic stars (SySt) of the accreting-only variety among the 600 255 stars so far observed by the GALAH high-resolution spectroscopic survey of the Southern Hemisphere, more than doubling the number of those previously known. GALAH aims to high latitudes and this offers the possibility to sound the Galaxy for new SySt away from the usual Plane and Bulge hunting regions. In this paper we focus on SySt of the M spectral type, showing an Hα emission with a peak in excess of 0.5 above the adjacent continuum level, and not affected by coherent radial pulsations. These constraints will be relaxed in future studies. The 33 new candidate SySt were subjected to an array of follow-up confirmatory observations (X–ray/UV observations with the Swift satellite, search for optical flickering, presence of a near-UV upturn in ground-based photometric and spectroscopic data, radial velocity changes suggestive of orbital motion, variability of the emission line profiles). According to Gaia eDR3 parallaxes, the candidate new SySt are located at the tip of the Giant Branch, sharing the same distribution in M(KS) of the well established SySt. The accretion luminosities of the candidate new StSt are in the range 1−10 L⊙, corresponding to mass-accretion rates of 0.1-1 10−9 M⊙ yr−1 for WDs of 1 M⊙. The M giant of one of them presents a large Lithium over-abundance.

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“…We expect that up to ∼ 10 3 CVs will be found by ART-XC compared to just several dozens present in existing X-ray-selected samples (e.g. Pretorius et al 2013;de Martino et al 2020;Lutovinov et al 2020). This together with the availability of accurate distances for many of these objects from the Gaia mission (Gaia Collaboration et al 2018) will enable a precise measurement of the X-ray luminosity function of CVs for the first time (Mereminskiy et al 2019).…”

Section: X-ray Binaries and Cataclysmic Variablesmentioning

confidence: 91%

The ART-XC telescope on board the SRG observatory

Pavlinsky,

Tkachenko,

Levin

et al. 2021

Preprint

View full text Add to dashboard Cite

ART-XC (Astronomical Roentgen Telescope -X-ray Concentrator) is the hard X-ray instrument with grazing incidence imaging optics on board the Spektr-Roentgen-Gamma (SRG) observatory. The SRG observatory is the flagship astrophysical mission of the Russian Federal Space Program, which was successively launched into orbit around the second Lagrangian point (L2) of the Earth-Sun system with a Proton rocket from the Baikonur cosmodrome on 13 July 2019. The ART-XC telescope will provide the first ever true imaging all-sky survey performed with grazing incidence optics in the 4-30 keV energy band and will obtain the deepest and sharpest map of the sky in the energy range of 4-12 keV. Observations performed during the early calibration and performance verification phase as well as during the on-going all-sky survey that started on 12 Dec. 2019 have demonstrated that the in-flight characteristics of the ART-XC telescope are very close to expectations based on the results of ground calibrations. Upon completion of its 4-year all-sky survey, ART-XC is expected to detect ∼ 5000 sources (∼ 3000 active galactic nuclei, including heavily obscured ones, several hundred clusters of galaxies, ∼ 1000 cataclysmic variables and other Galactic sources), and to provide a high-quality map of the Galactic background emission in the 4-12 keV energy band. ART-XC is also well suited for discovering transient X-ray sources. In this paper, we describe the telescope, results of its ground calibrations, major aspects of the mission, the in-flight performance of ART-XC and first scientific results.

show abstract

INTEGRAL View on cataclysmic variables and symbiotic binaries

Cited by 24 publications

References 134 publications

The ART-XC telescope on board the SRG observatory

The ART-XC telescope on board the SRG observatory

The GALAH survey and symbiotic stars – I. Discovery and follow-up of 33 candidate accreting-only systems

The ART-XC telescope on board the SRG observatory

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