Inclination Effects and Beaming in Black Hole X-ray Binaries

Abstract

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 trend in their quiescent X-ray luminosities as a function of i, suggesting that the radiation is not significantly beamed. This is consistent with emission from an accretion disk. If the X-rays are from a jet, then the Lorentz factor gamma of the jet is less than 1.24 at the 90% confidence level. (2) The X-ray binary 4U1543-47 with i of order 21 degrees has a surprisingly strong fluorescent iron line in the high soft state. Quantifying an earlier argument by Park et al. (2004), we conclude that if the continuum X-ray emission in this source is from a jet, then gamma < 1.04. (3) None of the known binaries has cos i < 0.25 or i > 75 degrees. This fact, plus the lack of eclipses among the 20 black hole binaries in our sample, strongly suggests at the 99.5% confidence level that systems with large inclination angles are hidden from view. The obscuration could be the result of disk flaring, as suggested by Milgrom (1978) for neutron star X-ray binaries. (4) Transient black hole binaries with i ~ 70-75 degrees have significantly more complex X-ray light curves than systems with i < 65 degrees. This may be the result of variable obscuration and/or variable height above the disk of the radiating gas.

26 pages, to appear in The Astrophysical Journal, vol. 624, May 1, 2005

References in corpus (44)

• Advection-Dominated Accretion: Underfed Black Holes and Neutron Stars
• Advection-Dominated Accretion and the Spectral States of Black Hole X-Ray Binaries: Application to Nova Muscae 1991
• A fundamental plane of black hole activity
• Sources of Relativistic Jets in the Galaxy
• A Scheme to Unify Low-Power Accreting Black Holes - Jet-Dominated Accretion Flows and the Radio/X-Ray Correlation
• A universal radio/X-ray correlation in low/hard state black hole binaries
• Thermal Equilibria of Accretion Disks
• The Properties of X-Ray and Optical Light Curves of X-Ray Novae
• A jet model for the broadband spectrum of XTE J1118+480: Synchrotron emission from radio to X-rays in the Low/Hard spectral state
• Radio / X-ray correlation in the low/hard state of GX 339--4
• The Non-Linear Dependence of Flux on Black Hole Mass and Accretion Rate in Core Dominated Jets
• Plasma Ejection from Magnetic Flares and the X-ray Spectrum of Cygnus X-1
• Do X-ray Binary Spectral State Transition Luminosities Vary?
• The distances to Galactic low-mass X-ray binaries: consequences for black hole luminosities and kicks
• Optical Observations of GRO J1655-40 in Quiescence I: A Precise Mass for the Black Hole Primary
• A New Model for Black Hole Soft X-ray Transients in Quiescence
• Spectral Transitions in Cyg X-1 and Other Black Hole X-Ray Binaries
• Dynamical Evidence for a Black Hole in GX 339-4
• New Evidence for Black Hole Event Horizons from Chandra
• Dynamical Evidence for a Black Hole in the Microquasar XTE J1550-564
• A Black Hole in the Superluminal source SAX J1819.3-2525 (V4641 Sgr)
• Optical and Infrared Photometry of the Micro-Quasar GRO J1655-40 in Quiescence
• Correlations between X-ray and radio spectral properties of accreting black holes
• Advection-Dominated Accretion Model of the Black Hole V404 Cyg in Quiescence
• X-ray spectra of accretion discs with dynamic coronae
• Modeling the Low State Spectrum of the X-Ray Nova XTE J1118+480
• On the Misalignment of Jets in Microquasars
• Orbital Parameters for the Black Hole Binary XTE J1650-500
• Jet-disc coupling through a common energy reservoir in the black hole XTE J1118+480
• Spectral and Timing Evolution of the Black Hole X-ray Nova 4U 1543-47 During its 2002 Outburst
• Multiwavelength Spectrum of the Black Hole XTE J1118+480 in Quiescence
• GRO J0422+32: The Lowest Mass Black Hole?
• A Multi-Wavelength, Multi-Epoch Study of the Soft X-Ray Transient Prototype, V616 Mon (A0620-00)
• Constraints on the role of synchrotron X-rays from jets of accreting black holes
• Infrared Observations of Nova Muscae 1991: Black Hole Mass Determination from Ellipsoidal Variations
• Evidence for a Black Hole in the X-ray transient GS 1354-64 (=BW Cir)
• XMM-Newton observations of two black hole X-ray transients in quiescence
• Constraints on relativistic beaming from estimators of the unbeamed flux
• Optical Lightcurves of the Black Hole Binaries GRS 1124-68 and A0620-00 in Outburst: the Importance of Irradiation
• The rapid X-ray variability of V4641 Sagittarii (SAX J1819.3-2525 = XTE J1819-254)
• Chandra Detections of Two Quiescent Black Hole X-Ray Transients
• Optical Observations of the Black Hole Candidate XTE J1550-564 During Re-Flare and Quiescence
• Near-Infrared Light Curves of the Black Hole Binary A0620-00
• XMM-Newton detection of Nova Muscae 1991 in Quiescence

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