Evidence of a Black Hole in the X-Ray Transient GS 1354-64 (=BW Circini)

@article{Casares2004EvidenceOA,
  title={Evidence of a Black Hole in the X-Ray Transient GS 1354-64 (=BW Circini)},
  author={Jorge Casares and Cristina Zurita and Tariq Shahbaz and Philip A. Charles and Robert P. Fender},
  journal={The Astrophysical Journal},
  year={2004},
  volume={613}
}
We present the first radial velocity curve of the companion star to BW Cir that demonstrates the presence of a black hole in this X-ray transient that recorded outbursts in 1987 and 1997 (and possibly 1971-1972). We identify weak absorption features corresponding to a G0-5 III donor star, strongly veiled by a residual accretion disk that contributes 61%-65% of the total light at 6300 A. The Doppler motions of these features trace an orbit of P = 2.54448 days (or its 1 yr alias of P = 2.56358… 

Figures and Tables from this paper

REFINED ORBITAL SOLUTION AND QUIESCENT VARIABILITY IN THE BLACK HOLE TRANSIENT GS 1354-64 (= BW Cir)
In Casares et al. we presented the first radial velocity curve of the companion star to BW Cir which demonstrates the presence of a black hole in this historical X-ray transient. But these data were
A FWHM-K2 correlation in Black-Hole transients
We compare Halpha emission profiles of 12 dynamically confirmed black holes (BHs) and 2 neutron star X-ray transients (SXTs) in quiescence with those of a sample of 43 Cataclysmic Variables (CVs),
A Prominent Accretion Disk in the Low-Hard State of the Black Hole Candidate SWIFT J1753.5-0127
We report on simultaneous XMM-Newton and RXTE observations of the stellar mass black hole candidate SWIFT J1753.5-0127. The source was observed in the low-hard state, during the decline of a hard
Swift J1357.2−0933: a massive black hole in the Galactic thick disc
Swift J1357.2-0933 is one of the shortest orbital period black hole X-ray transients (BHTs). It exhibited deep optical dips together with an extremely broad H$\alpha$ line during outburst. We present
Simultaneous optical/X-ray study of GS 1354-64 (=BW Cir) during hard outburst: evidence for optical cyclo-synchrotron emission from the hot accretion flow
We present results from simultaneous optical (SALT) and X-ray (Swift and INTEGRAL) observations of GS 1354-64/BW Cir during the 2015 hard state outburst. During the rising phase, optical/X-ray time
Inclination Effects and Beaming in Black Hole X-Ray Binaries
We investigate the dependence of observational properties of black hole X-ray binaries on the inclination angle i of their orbits. We find the following: (1) Transient black hole binaries show no
AN ANOMALOUS QUIESCENT STELLAR MASS BLACK HOLE
We present the results of a 40 ks Chandra observation of the quiescent stellar mass black hole GS 1354-64. A total of 266 net counts are detected at the position of this system. The resulting
Gaia Data Release 2 distances and peculiar velocities for Galactic black hole transients
We report on a first census of Galactic black hole X-ray binary (BHXRB) properties with the second data release (DR2) of Gaia, focusing on dynamically confirmed and strong candidate BH transients.
The Rates of Type I X-Ray Bursts from Transients Observed with RXTE: Evidence for Black Hole Event Horizons
We measure the rates of type I X-ray bursts from a likely flux-limited sample of 37 nonpulsing Galactic transients observed with RXTE during 1996-2004. These sources are well categorized in the
The Relation between Outburst Rate and Orbital Period in Low-mass X-Ray Binary Transients
We have investigated the outburst properties of low-mass X-ray binary transients (LMXBTs) based on a comprehensive study of the outbursts observed in the past few decades. The outburst rates were
...
...

References

SHOWING 1-10 OF 20 REFERENCES
Dynamical Evidence for a Black Hole in GX 339-4
We present outburst spectroscopy of GX 339-4 that may reveal the motion of its elusive companion star. N III lines exhibit sharp emission components moving over ~300 km s-1 in a single night. The
A 6.5-day periodicity in the recurrent nova V404 Cygni implying the presence of a black hole
THE X-ray transient source GS2023 + 338 was discovered in out-burst by the Ginga satellite in 1989 (ref. 1) and has since been identified with the previously known recurrent nova V404 Cygni2. This
Spectroscopy of $A0620-00$: the mass of the black hole and an image of its accretion disc
We present spectra of the black hole binary A0620-00 taken at Hα and Hβ to study the distribution of emission-line flux from its accretion disc. Using the spectra of Hα, we have measured the K-type
Outburst, identification, and X-ray light curve of GS 1354 - 64 (= MX 1353 - 64 , Centaurus X-2 )
This paper describes the optical identification and the X-ray light curve of an ultrashort transient X-ray source, GS 1354 - 64, discovered on February 13, 1987 by the All Sky Monitor (ASM) on
The 1997 hard-state outburst of the X-ray transient GS 1354-64/BW Cir
We present observations of the 1997 outburst of the X-ray transient GS 1354−64 (BW Cir) at X-ray, optical and, for the first time, radio wavelengths; our results include upper limits to the linear
The Distance and Interstellar Sight Line to GX 339–4
The distance to the black hole binary GX 339-4 remains a topic of debate. We examine high-resolution optical spectra of the Na D lines resolving the velocity structure along the line of sight. We
Rossi X-Ray Timing Explorer Observations of an Outburst of Recurrent X-Ray Nova GS 1354–644
We present the results of Rossi X-Ray Timing Explorer (RXTE) observations of GS 1354–644 during a modest outburst in 1997-1998. The source is one of a handful of black hole X-ray transients that are
On the Accretion Instability in Soft X-Ray Transients
Dwarf nova outbursts are likely caused by a thermal-viscous instability in the accretion disk around the white dwarf, which can occur if the mass transfer rate, , is below a critical value (which
Compact stellar X-ray sources
1. Accreting neutron stars and black holes: a decade of discoveries D. Psaltis 2. Rapid X-ray variability M. van der Klis 3. New views of thermonuclear bursts T. Strohmayer and L. Bildsten 4. Black
Evolutionary Processes in Close Binary Systems
The structure and evolution of the stars constitute one of the main prob­ lems of modern astrophysics. Binary stars are so common that it is not pos­ sible to develop a comprehensive theory of
...
...