The spin of Cygnus X-1 is measured by fitting reflection models to Suzaku data covering the energy band 0.9-400 keV. The inner radius of the accretion disc is found to lie within 2 gravitational radii (rg=GM/c2), and a value of ? is obtained for the dimensionless black hole spin. This agrees with recent measurements using the continuum fitting method by Gou et al. and of the broad iron line by Duro et al. The disc inclination is measured at ?, which is consistent with the recent optical measurement of the binary system inclination by Orosz et al. of 27°± 0?8. We pay special attention to the emissivity profile caused by irradiation of the inner disc by the hard power-law source. The X-ray observations and simulations show that the index q of...
We show the softest ever spectrum from Cyg X-1, detected in 2013 with Suzaku. This has the weakest h...
© 2016 ESO. We report on the analysis of the broad Fe Kα line feature of Cyg X-1 in the spectra of f...
The first extragalactic X-ray binary, LMC X-1, was discovered in 1969. In the 1980s, its compact pri...
The spin of Cygnus X-1 is measured by fitting reflection models to Suzaku data covering the energy b...
The spin of Cygnus X‐1 is measured by fitting reflection models to Suzaku data covering the energy...
The black hole binary Cygnus X-1 was observed in late 2012 with the Nuclear Spectroscopic Telescope ...
The compact primary in the X-ray binary Cygnus X-1 was the first black hole to be established via dy...
In Gou et al., we reported that the black hole primary in the X-ray binary Cygnus X-1 is a near-extr...
In Gou et al., we reported that the black hole primary in the X-ray binary Cygnus X-1 is a near-extr...
The black hole binary Cygnus X-1 was observed in late 2012 with the Nuclear Spectroscopic Telescope ...
The compact primary in the X-ray binary Cygnus X-1 was the first black hole to be established via dy...
We present measurements of the dimensionless spin parameters and inner-disc inclination of two stell...
We show that disc continuum fitting can be used to constrain black hole spin in a subclass of narrow...
4U 1543-47 is a low-mass X-ray binary that harbours a stellar-mass black hole located in our Milky W...
The first extragalactic X-ray binary, LMC X-1, was discovered in 1969. In the 1980s, its compact pri...
We show the softest ever spectrum from Cyg X-1, detected in 2013 with Suzaku. This has the weakest h...
© 2016 ESO. We report on the analysis of the broad Fe Kα line feature of Cyg X-1 in the spectra of f...
The first extragalactic X-ray binary, LMC X-1, was discovered in 1969. In the 1980s, its compact pri...
The spin of Cygnus X-1 is measured by fitting reflection models to Suzaku data covering the energy b...
The spin of Cygnus X‐1 is measured by fitting reflection models to Suzaku data covering the energy...
The black hole binary Cygnus X-1 was observed in late 2012 with the Nuclear Spectroscopic Telescope ...
The compact primary in the X-ray binary Cygnus X-1 was the first black hole to be established via dy...
In Gou et al., we reported that the black hole primary in the X-ray binary Cygnus X-1 is a near-extr...
In Gou et al., we reported that the black hole primary in the X-ray binary Cygnus X-1 is a near-extr...
The black hole binary Cygnus X-1 was observed in late 2012 with the Nuclear Spectroscopic Telescope ...
The compact primary in the X-ray binary Cygnus X-1 was the first black hole to be established via dy...
We present measurements of the dimensionless spin parameters and inner-disc inclination of two stell...
We show that disc continuum fitting can be used to constrain black hole spin in a subclass of narrow...
4U 1543-47 is a low-mass X-ray binary that harbours a stellar-mass black hole located in our Milky W...
The first extragalactic X-ray binary, LMC X-1, was discovered in 1969. In the 1980s, its compact pri...
We show the softest ever spectrum from Cyg X-1, detected in 2013 with Suzaku. This has the weakest h...
© 2016 ESO. We report on the analysis of the broad Fe Kα line feature of Cyg X-1 in the spectra of f...
The first extragalactic X-ray binary, LMC X-1, was discovered in 1969. In the 1980s, its compact pri...