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Title: Relativistic Effects on Reflection X-ray Spectra of AGN

Abstract

We have calculated the reflection component of the X-ray spectra of active galactic nuclei (AGN) and shown that they can be significantly modified by the relativistic motion of the accretion flow and various gravitational effects of the central black hole. The absorption edges in the reflection spectra suffer severe energy shifts and smearing. The degree of distortion depends on the system parameters, and the dependence is stronger for some parameters such as the inner radius of the accretion disk and the disk viewing inclination angles. The relativistic effects are significant and are observable. Improper treatment of the reflection component of the X-ray continuum in spectral fittings will give rise to spurious line-like features, which will mimic the fluorescent emission lines and mask the relativistic signatures of the lines.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
896924
Report Number(s):
SLAC-PUB-12271
TRN: US200705%%70
DOE Contract Number:
AC02-76SF00515
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ACCRETION DISKS; BLACK HOLES; INCLINATION; NUCLEI; REFLECTION; SPECTRA; X-RAY SPECTRA; Astrophysics,ASTRO

Citation Formats

Lee, Khee-Gan, /University Coll. London, Fuerst, Steven V., /KIPAC, Menlo Park, Brandwardi-Raymond, Graziella, Wu, Kinwah, Crowley, Oliver, and /University Coll. London. Relativistic Effects on Reflection X-ray Spectra of AGN. United States: N. p., 2007. Web. doi:10.2172/896924.
Lee, Khee-Gan, /University Coll. London, Fuerst, Steven V., /KIPAC, Menlo Park, Brandwardi-Raymond, Graziella, Wu, Kinwah, Crowley, Oliver, & /University Coll. London. Relativistic Effects on Reflection X-ray Spectra of AGN. United States. doi:10.2172/896924.
Lee, Khee-Gan, /University Coll. London, Fuerst, Steven V., /KIPAC, Menlo Park, Brandwardi-Raymond, Graziella, Wu, Kinwah, Crowley, Oliver, and /University Coll. London. Fri . "Relativistic Effects on Reflection X-ray Spectra of AGN". United States. doi:10.2172/896924. https://www.osti.gov/servlets/purl/896924.
@article{osti_896924,
title = {Relativistic Effects on Reflection X-ray Spectra of AGN},
author = {Lee, Khee-Gan and /University Coll. London and Fuerst, Steven V. and /KIPAC, Menlo Park and Brandwardi-Raymond, Graziella and Wu, Kinwah and Crowley, Oliver and /University Coll. London},
abstractNote = {We have calculated the reflection component of the X-ray spectra of active galactic nuclei (AGN) and shown that they can be significantly modified by the relativistic motion of the accretion flow and various gravitational effects of the central black hole. The absorption edges in the reflection spectra suffer severe energy shifts and smearing. The degree of distortion depends on the system parameters, and the dependence is stronger for some parameters such as the inner radius of the accretion disk and the disk viewing inclination angles. The relativistic effects are significant and are observable. Improper treatment of the reflection component of the X-ray continuum in spectral fittings will give rise to spurious line-like features, which will mimic the fluorescent emission lines and mask the relativistic signatures of the lines.},
doi = {10.2172/896924},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 05 00:00:00 EST 2007},
month = {Fri Jan 05 00:00:00 EST 2007}
}

Technical Report:

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