A dataset provided by the European Space Agency

Proposal ID 0420003
Obs ID 04200030001, 04200030002
Title Compton reflection in the Seyfert 1.9 galaxy MCG -05-23-016
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0420003
DOI https://doi.org/10.57780/esa-ok59yi6
Author Beckmann
Abstract We request two INTEGRAL observations of 200 ksec each of thebright Seyfert 1.9 galaxy MCG -05-23-16. Previous observations by BeppoSAX showed a complex X-ray spectrum, but did not extendsignificantly above 100 keV in order to study the continuum anddetermine the turnover (cut-off) in the hard X-ray band. INTEGRAL offers the unique possibility to study the physicsinvolved in absorbed AGNs and even enables us to study the connectionbetween flux variation, high-energy cut-off, and iron fluorescenceline. The variation in flux over the time of the observation invarious energy bands, can reveal the geometry of this source. The twoseperate observations will most likely catch the source in twodifferent states, allowing to further constrain the connection betweenhigh energy spectrum and reprocessing. Analysing all INTEGRALdata covering MCG -05-23-16, even though being at large off-axis angles, led to a 9 sigma (20 - 40 keV) detection in ISGRI within 69 ksec, ensuring that this source is indeed bright enough to perform detailed spectral studies.
Publications
Temporal Coverage 2006-12-10T19:25:25Z / 2007-06-13T23:00:11Z
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 2025-03-25T09:54:34Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Beckmann, 2025, 'Compton reflection in the Seyfert 1.9 galaxy MCG -05-23-016', 1.0, European Space Agency, https://doi.org/10.57780/esa-ok59yi6