Exploring multiwavelength AGN variability with swift archival data

Jonathan Gelbord, Caryl Gronwall, Dirk Grupe, Dan Vanden Berk, Jian Wu

Research output: Contribution to journalConference articlepeer-review


We are conducting an archival Swift program to measure multiwavelength variability in active galactic nuclei (AGN). This variability information will provide constraints on the geometry, physical conditions and processes of the structures around the central black holes that emit and reprocess the observed flux. Among our goals are: (1) to produce a catalog of type 1 AGN with time-resolved multi-wavelength data; (2) to characterize variability in the optical, UV and X-ay bands as well as changes in spectral slope; (3) to quantify the impact of variability on multiwavelength properties; and (4) to measure correlated variability between bands. Our initial efforts have revealed a UVOT calibration issue that can cause a few percent of measured UV fluxes to be anomalously low, by up to 30%.Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

Original languageEnglish (US)
Article number137
JournalProceedings of Science
StatePublished - Jan 1 2014
Event10th Conference on Swift, SWIFT 2014 - Rome, Italy
Duration: Dec 2 2014Dec 5 2014

All Science Journal Classification (ASJC) codes

  • General


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