A dataset provided by the European Space Agency

Proposal ID 0120094
Obs ID 01200940004, 01200940005
Title INTEGRAL observations of the reflection component in Seyfert Galaxies
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0120094
DOI https://doi.org/10.57780/esa-5vef9mj
Author Fabian
Abstract Compton reflection in the accretion disc around massive black holes creates an important component of the spectrum of Seyfert galaxies. The main observables are the iron line at 6.4 keV and a broad reflection hump peaking at 30-40 keV. The iron line has been well-studied leading to important results on the accretion flow in the strong-gravity environment of the black hole. The reflection hump has so far only been poorly studied. We propose to use Integral to make observations of the reflection hump in a small sample of the brightest Seyfert galaxies on the hard X-ray sky. The anticipated results will be complementary to those from the broad iron line and will enable us to break degeneracies between the solid angle and metallicity of the reflector. They will also enable us to determine the shape of the underlying continuum and probe the geometry of the emission regions.
Publications
Temporal Coverage 2003-05-11T08:44:28Z / 2003-07-21T09:39:11Z
Version 1.0
Mission Description The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
Creator Contact https://www.cosmos.esa.int/web/integral/helpdesk
Date Published 2025-03-25T09:54:29Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Fabian, 2025, 'INTEGRAL observations of the reflection component in Seyfert Galaxies', 1.0, European Space Agency, https://doi.org/10.57780/esa-5vef9mj