The rotational broadening and the mass of the donor star of GRS 1915+105

Abstract

The binary parameters of the microquasar GRS 1915+105 have been determined by the detection of Doppler-shifted 12CO and 13CO lines in its K-band spectrum (Greiner et al., 2001, Nature, 414, 522). Here, we present further analysis of the same K-band VLT spectra and we derive a rotational broadening of the donor star of V sin i=26+-3 km/s from the 12CO/13CO lines. Assuming that the K-type star is tidally locked to the black hole and is filling its Roche-lobe surface, then the implied mass ratio is q = M_d/M_x = 0.058+-0.033. This result, combined with (P, K, i)=(33.5 d, 140 km/s, 66 deg) gives a more refined mass estimate for the black hole, $M_x=14.0+-4.4M_{\odot }$, than previously estimated, using an inclination of i=66+-2 deg (Fender et al. 1999) as derived from the orientation of the radio jets and a more accurate distance. The mass for the early K-type giant star is $M_d=0.81\pm 0.53M_{\odot }$, consistent with a more evolved stripped-giant donor star in GRS 1915+105 than, for example, the donor star of the prototype black-hole X-ray transient, V404 Cyg which has the longest binary period after GRS 1915+105.

arXiv comment4 pages, 1 figure, A&A Letter

References in corpus (14)

• MERLIN observations of relativistic ejections from GRS 1915+105
• An unusually massive stellar black hole in the Galaxy
• An unstable central disk in the superluminal black-hole X-ray binary GRS 1915+105
• Optical and Infrared Photometry of the Micro-Quasar GRO J1655-40 in Quiescence
• Hard X-ray states and radio emission in GRS 1915+105
• Evidence for a Disk-Jet Interaction in the Microquasar GRS 1915+105
• On the Misalignment of Jets in Microquasars
• Identification of the donor in the X-ray binary GRS 1915+105
• Blunting the Spike: the CV Minimum Period
• Repeated Relativistic Ejections in GRS 1915+105
• Determining the spectroscopic mass ratio in interacting binaries: Application to X-Ray Nova Sco 1994
• Irradiation of the secondary star in X-ray Nova Scorpii 1994 (=GRO J1655--40)
• The 590 days long term periodicity of the microquasar GRS 1915+105
• IR spectra of the microquasar GRS 1915+105 during a low state

Cited by in corpus (66)

• The Black Hole Mass Distribution in the Galaxy
• The Spin of the Near-Extreme Kerr Black Hole GRS 1915+105
• BlackCAT: A catalogue of stellar-mass black holes in X-ray transients
• WATCHDOG: A Comprehensive All-Sky Database of Galactic Black Hole X-ray Binaries
• Ultraluminous X-ray Sources in the Chandra and XMM-Newton Era
• The distances to Galactic low-mass X-ray binaries: consequences for black hole luminosities and kicks
• A 15.65 solar mass black hole in an eclipsing binary in the nearby spiral galaxy Messier 33
• Measuring the Spins of Accreting Black Holes
• Mass Measurements of Stellar and Intermediate Mass Black-Holes
• Ultra-luminous X-ray sources and remnants of massive metal-poor stars
• The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate
• The Origin of Black Hole Spin in Galactic Low-Mass X-ray Binaries
• A Precessing Ring Model for Low-Frequency Quasi-periodic Oscillations
• Measuring mass and angular momentum of black holes with high-frequency quasi-periodic oscillations
• Black hole spin in GRS 1915+105
• The not-so-massive black hole in the microquasar GRS1915+105
• Intermediate Mass Black Holes in Accreting Binaries: Formation, Evolution and Observational Appearance
• Dynamics of stellar black holes in young star clusters with different metallicities - I. Implications for X-ray binaries
• Characterizing a new class of variability in GRS 1915+105 with simultaneous INTEGRAL/RXTE observations
• Regulation of Black Hole Winds and Jets Across the Mass Scale
• GRS 1915+105: the distance, radiative processes and energy-dependent variability
• Discovery of high-frequency quasi-periodic oscillations in the black-hole candidate IGR J17091-3624
• Spectral Properties of Low Quasi-Periodic Oscillations in GRS 1915+105
• Two years of INTEGRAL monitoring of GRS 1915+105 Part 1: multiwavelength coverage with INTEGRAL, RXTE, and the Ryle radio Telescope
• Comprehensive simulations of superhumps
• Evidence for a Link Between Fe K-alpha Emission Line Strength and QPO Phase in a Black Hole
• The nature of the hard state of Cygnus X-3
• A transient low-frequency QPO from the black hole binary GRS 1915+105
• Low-mass X-ray binaries in the bulge of the Milky Way
• Gamma-ray observations of the microquasars Cygnus X-1, Cygnus X-3, GRS 1915+105, and GX 339-4 with the Fermi Large Area Telescope
• High-Frequency Quasi-Periodic Oscillations from GRS 1915+105
• Population Synthesis of Black Hole X-Ray Binaries
• The mass of the black hole in RE J1034+396
• Detection of Strong Short-Term Variability in NGC 6946 X-1
• The XMM-Newton View of GRS1915+105
• Black Hole Spin in X-ray Binaries: Giving Uncertainties an $f$
• A Statistical Study on the Low-Frequency QPO Amplitude Spectrum and Amplitude in GRS 1915+105
• The complex behaviour of the microquasar GRS 1915+105 in the rho class observed with BeppoSAX. II: Time-resolved spectral analysis
• Long-term multi-wavelength studies of GRS 1915+105 I. A high-energy and mid-infrared focus with RXTE, INTEGRAL, and Spitzer
• The outburst duration and duty-cycle of GRS 1915+105
• The complex behaviour of the microquasar GRS 1915+105 in the rho class observed with BeppoSAX. I: Timing analysis
• Testing modified gravity and no-hair relations for the Kerr-Newman metric through quasi-periodic oscillations of galactic microquasars
• Time-Dependent Synchrotron and Compton Spectra from Jets of Microquasars
• The jet kinetic power, distance and inclination of GRS 1915+105
• The decline and fall of GRS 1915+105: the end is nigh?
• A Systematic Study on Energy Dependence of Quasi-Periodic Oscillation Frequency in GRS 1915+105
• Characterizing the radio--X-ray connection in GRS 1915+105
• The mass of the black hole in GRS 1915+105: new constraints from IR spectroscopy
• Is the plateau state in GRS 1915+105 equivalent to canonical hard states?
• Formation and Evolution of Accreting Compact Objects
• The relation between outburst rate and orbital period in low-mass X-ray binary transients
• The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630
• Comptonization efficiencies of the variability classes of GRS 1915+105
• Unraveling the Formation History of the Black Hole X-ray Binary LMC X-3 from ZAMS to Present
• Disc-corona interaction in the heartbeat state of GRS 1915+105
• Fast X-Ray/IR cross-correlations and relativistic jet formation in GRS 1915+105
• A timing view of the heartbeat state of GRS 1915+105
• Phase-Resolved Timing Analysis of GRS 1915+105 in Its ρ State
• The mass, luminosity and mass-loss rate of the donor of the V1487 Aql/GRS 1915+105 binary system
• Evidence of variation of the accretion flow geometry in GRS 1915+105 from IXAE and RXTE data
• Long time-scale variability in GRS1915+105
• Black Hole Spin Evolution Affected by Magnetic Field Decay
• Searching for gravitational waves emitted by binaries with spinning components
• Cherenkov Telescope results on gamma-ray binaries
• Simulations of the Disk-Jet Interaction in GRS 1915+105 and Other Systems
• Galactic Electron-Positron Annihilation Emission from X-Ray Binaries with Transient and Persistent Jets