Evidence for a relativistic iron line in GRS 1915+105

Abstract

We report on the discovery of a relativistic iron Kαfluorescent emission line in the BeppoSAX spectrum of the microquasar GRS 1915+105, taken on April 19, 1998, when the line was unusually intense. The feature is broad and skewed, clearly indicating emission from the innermost regions of the accretion disc. The inner emitting orbit is larger than the innermost stable orbit, even in Schwarzschild metric: thus, a non-zero BH spin is not required by these data.

7 pages, accepted for publication on A&A

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Cited by in corpus (54)

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• General Relativistic Magnetohydrodynamic Simulations of Jet Formation and Large-Scale Propagation from Black Hole Accretion Systems
• The Spin of the Near-Extreme Kerr Black Hole GRS 1915+105
• A light bending model for the X-ray temporal and spectral properties of accreting black holes
• GRS 1915+105 and the Disc-Jet Coupling in Accreting Black Hole Systems
• Relativistic X-ray Lines from the Inner Accretion Disks Around Black Holes
• Broad emission lines for negatively spinning black holes
• An extended scheme for fitting X-ray data with accretion disk spectra in the strong gravity regime
• Stellar-mass Black Hole Spin Constraints from Disk Reflection and Continuum Modeling
• The Masses and Spins of Neutron Stars and Stellar-Mass Black Holes
• Normalizing a Relativistic Model of X-ray Reflection: The Definition of the Reflection Fraction and its Implementation in relxill
• GRS 1915+105: The brightest Galactic black hole
• The Physics of the 'Heartbeat' State of GRS 1915+105
• NuSTAR Spectroscopy of GRS 1915+105: Disk Reflection, Spin, and Connections to Jets
• The Lack of BLR in Low Accretion Rate AGN as Evidence of their Origin in the Accretion Disk
• GRS 1915+105 in "Soft State": Nature of Accretion Disk Wind and Origin of X-Ray Emission
• X-ray Spectra from MHD Simulations of Accreting Black Holes
• Black hole spin in GRS 1915+105
• Measuring the Spin of GRS 1915+105 with Relativistic Disk Reflection
• Initial Measurements of Black Hole Spin in GX 339-4 from Suzaku Spectroscopy
• Implementing a search for gravitational waves from non-precessing, spinning binary black holes
• Gravitating discs around black holes
• Multi-state observations of the Galactic Black Hole XTE J1752-223: Evidence for an intermediate black hole spin
• Evidence for a Link Between Fe K-alpha Emission Line Strength and QPO Phase in a Black Hole
• Discovery of photon index saturation in the black hole binary GRS 1915+105
• A Relativistic Fe K-alpha Emission Line in the Intermediate Luminosity BeppoSAX Spectrum of the Galactic Microquasar V4641 Sgr
• The Low X-Ray State of LS 5039 / RX J1826.2-1450
• Magnetic fields in AGNs and microquasars
• The Spectrum of the Black Hole X-ray Nova V404 Cygni in Quiescence as Measured by XMM-Newton
• QPOs in microquasars and Sgr A*: measuring the black hole spin
• The XMM-Newton View of GRS1915+105
• The peculiar 2011 outburst of the black hole candidate IGR J17091-3624, a GRS 1915+105 like source?
• The complex behaviour of the microquasar GRS 1915+105 in the rho class observed with BeppoSAX. II: Time-resolved spectral analysis
• Broad-band X-ray measurements of the black hole candidate XTE J1908+094
• Testing the Kerr black hole hypothesis with the continuum-fitting and the iron line methods: the case of GRS 1915+105
• Signatures of highly inclined accretion disks in Galactic Black Hole Candidates and AGNs
• X-ray Reflection from Inhomogeneous Accretion Disks: I. Toy Models and Photon Bubbles
• Extremal energy shifts of radiation from a ring near a rotating black hole
• Different Types of Fe K_αLines from Radiating Annuli near Black Holes
• The relativistic shift of narrow spectral features from black-hole accretion discs
• Spectral modeling of the three spectral states of the Galactic microquasar GRS 1915+105
• A Short Review of Relativistic Iron Lines from Stellar-Mass Black Holes
• Broad Iron Lines in AGN and X-ray Binaries
• The iron $K_{\alpha }$ lines as a tool for magnetic field estimations in non-flat accretion flows
• The Contribution of Particle Impact to the Production of Fe K Emission from Accreting Black Holes
• Modelling the variability of the Fe K alpha line in accreting black holes
• Atomic X-ray Spectroscopy of Accreting Black Holes
• Iron Line Diagnostics for the GRS 1915+105 Black Hole
• Impact of ionization and electron density gradients in X-ray reflection spectroscopy measurements
• Constraints on black hole spins with a general relativistic accretion disk corona model
• Relativistic Reflection Modeling in AGN and Related Variability from PCA: A Brief Review
• Origin of the X-ray Broad Iron Spectral Feature in GRS 1915+105
• The onset of General Relativity: Gravitationally redshifted emission lines
• Strong gravity effects: X-ray spectra, variability and polarimetry