Published May 2016 | Version public
Journal Article

High-energy monitoring of Seyfert galaxies: The case of NGC 4593

  • 1. ROR icon Grenoble Alpes University
  • 2. ROR icon Institut de Planétologie et d'Astrophysique de Grenoble
  • 3. ROR icon Roma Tre University
  • 4. ROR icon Max Planck Institute for Extraterrestrial Physics
  • 5. ROR icon National Institute for Astrophysics
  • 6. ROR icon Research Institute in Astrophysics and Planetology

Abstract

We discuss preliminary results from a joint XMM-Newton and NuSTAR monitoring program on the active galactic nucleus NGC 4593, consisting of 5×20 ks observations, spaced by two days, performed in January 2015. The source is found to be variable, both in flux and spectral shape, on time scales as short as a few ks. The spectrum clearly softens when the source brightens. A simple timing analysis suggests the presence of a variable soft excess that correlates with the primary continuum.

Additional Information

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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Identifiers

Eprint ID
67432
Resolver ID
CaltechAUTHORS:20160527-092521863

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Dates

Created
2016-05-27
Created from EPrint's datestamp field
Updated
2022-10-04
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Caltech groups
NuSTAR