Impact of reflection Comptonization on X-ray reflection spectroscopy: the case of EXO 1846-031

Abstract

Within the disk-corona model, it is natural to expect that a fraction of reflection photons from the disk are Compton scattered by the hot corona (reflection Comptonization), even if this effect is usually ignored in X-ray reflection spectroscopy studies. We study the effect by using NICER and NuSTAR data of the Galactic black hole EXO 1846-031 in the hard-intermediate state with the model SIMPLCUTX. Our analysis suggests that a scattered fraction of order 10% is required to fit the data, but the inclusion of reflection Comptonization does not change appreciably the measurements of key-parameters like the black hole spin and the inclination angle of the disk.

arXiv comment13 pages, 7 figures. v2: refereed version

References in corpus (36)

• On the Absorption of X-rays in the Interstellar Medium
• Broad-band gamma-ray and X-ray spectra of NGC 4151 and their implications for physical processes and geometry
• The May 1989 outburst of the Soft X-ray Transient GS 2023+338 (V404 Cyg)
• Optimal binning of X-ray spectra and response matrix design
• X-ray reflected spectra from accretion disk models. I. Constant density atmospheres
• A rapidly spinning supermassive black hole at the centre of NGC 1365
• The Constant Inner-Disk Radius of LMC X-3: A Basis for Measuring Black Hole Spin
• Broad iron L-line and X-ray reverberation in 1H0707-495
• An Empirical Background Model for the NICER X-ray Timing Instrument
• Towards precision measurements of accreting black holes using X-ray reflection spectroscopy
• The Comptonisation of accretion disc X-ray emission: Consequences for X-ray reflection and the geometry of AGN coronae
• Self-Consistent Black Hole Accretion Spectral Models and the Forgotten Role of Coronal Comptonization of Reflection Emission
• The NICER "Reverberation Machine": A Systematic Study of Time Lags in Black Hole X-Ray Binaries
• A New Spin on an Old Black Hole: NuSTAR Spectroscopy of EXO 1846-031
• A study of the strong gravity region of the black hole in GS 1354-645
• Tests of the Kerr hypothesis with GRS 1915+105 using different RELXILL flavors
• The Impact of Accurate Extinction Measurements for X-ray Spectral Models
• On broad iron K-alpha lines in Seyfert 1 galaxies
• A variable ionized disk wind in the black-hole candidate EXO 1846-031
• Implementation of a radial disk ionization profile in the RELXILL_NK model
• NuSTAR monitoring of MAXI J1348-630: evidence of high density disc reflection
• Stronger Reflection from Black Hole Accretion Disks in Soft X-ray States
• Constraints on Einstein-Maxwell dilaton-axion gravity from X-ray reflection spectroscopy
• The hard to soft transition of GX 339-4 as seen by Insight-HXMT
• Impact of the disk thickness on X-ray reflection spectroscopy measurements
• The spin of the black hole GRS 1716-249 determined from the hard intermediate state
• The spins of the Galactic black holes in MAXI J1535-571 and 4U 1630-472 from Insight-HXMT
• Insight-HXMT Study of the Inner Accretion Disk in the Black Hole Candidate EXO 1846--031
• Constraining the Konoplya-Rezzolla-Zhidenko deformation parameters II: limits from stellar-mass black hole X-ray data
• Timing analysis of the black hole candidate EXO 1846-031 with Insight-HXMT monitoring
• Probing bumblebee gravity with black hole X-ray data
• Analysis of the reflection spectra of MAXI J1535-571 in the hard and intermediate states
• Radio observations of the Black Hole X-ray Binary EXO 1846-031 re-awakening from a 34-year slumber
• NICER/NuSTAR Characterization of 4U 1957+11: A Near Maximally Spinning Black Hole Potentially in the Mass Gap
• Accretion Flow Properties of EXO 1846-031 During its Multi-Peaked Outburst After Long Quiescence
• Testing the $\delta$-Kerr metric with black hole X-ray data

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