Modelling the energy dependent X-ray variability of Mrk 335

Abstract

We present a technique which predicts the energy dependent fractional r.m.s for linear correlated variations of a pair of spectral parameters and apply it to an XMM-Newton observation of Mrk 335. The broadband X-ray spectrum can be interpreted as a patchy absorber partially covering the primary emission, a warm and hot coronal emission or a relativistically blurred reflection along with the primary emission. The fractional r.m.s has a non-monotonic behavior with energy for segments of lengths 3 and 6 ksecs. For each spectral model, we consider every pair of spectral parameters and fit the predicted r.m.s with the observed ones, to get the pair which provides the best fit. We find that a variation in at least two parameters is required for all spectral interpretations. For both time segments, variations in the covering fraction of the absorber and the primary power law index gives the best result for the partial covering model, while a variation in the normalization and spectral index of the warm component gives the best fit in the two corona interpretation. For the reflection model, the best fit parameters are different for the two time segment lengths, and the results suggests that more than two parameters are required to explain the data. This, combined with the extreme values of emissivity index and reflection fraction parameters obtained from the spectral analysis, indicates that the blurred reflection model might not be a suitable explanation for the Mrk 335 spectrum. We discuss the results as well as the potential of the technique to be applied to other data sets of different AGN.

Accepted for publication in JHEAP

References in corpus (36)

• The role of the reflection fraction in constraining black hole spin
• On why the Iron K-shell absorption in AGN is not a signature of the local Warm/Hot Intergalactic Medium
• The NuSTAR spectrum of Mrk 335: Extreme relativistic effects within 2 gravitational radii of the event horizon?
• Driving extreme variability: The evolving corona and evidence for jet launching in Markarian 335
• A public relativistic transfer function model for X-ray reverberation mapping of accreting black holes
• A deep X-ray view of the bare AGN Ark120. IV. XMM-Newton and NuSTAR spectra dominated by two temperature (warm, hot) Comptonization processes
• XMM-Newton observations of the Narrow-Line Seyfert 1 galaxy Mrk 335 in an historical low X-ray flux state
• Suzaku observations of Mrk 335: Confronting partial covering and relativistic reflection
• Discovery of the Narrow-Line Seyfert 1 galaxy Mkn 335 in an historical low X-ray flux state
• An investigation of the origin of soft X-ray excess emission from Narrow-line Seyfert 1 galaxies Akn564 and Mrk1044
• An absorption origin for the soft excess in Seyfert 1 AGN
• On the Observational Difference Between the Accretion Disk-Corona Connections among Super- and Sub-Eddington Accreting Active Galactic Nuclei
• X-ray Variability of the Seyfert 1 Markarian 335: Power Spectrum and Time Lags
• The soft X-ray excess: NLS1s vs. BLS1s
• The Seyfert 1 Galaxy Mrk 335 at a very low flux state: mapping the soft X-ray photoionised gas
• Evidence for relativistic features in the X-ray spectrum of Mrk 335
• Can the soft excess in AGN originate from disc reflection?
• NuSTAR/XMM-Newton monitoring of the Seyfert 1 galaxy HE 1143-1810. Testing the two-corona scenario
• Variability of Active Galactic Nuclei from the Optical to X-ray Regions
• Evidence for an emerging disc wind and collimated outflow during an X-ray flare in the narrow-line Seyfert 1 galaxy Mrk 335
• Suzaku observations of Markarian 335: evidence for a distributed reflector
• Theoretical modelling of the AGN iron-line vs continuum time-lags in the lamp-post geometry
• Modeling the Fe K Line Profiles in Type I AGN with a Compton-Thick Disk Wind
• Simultaneous spectral and reverberation modelling of relativistic reflection in Mrk 335
• The soft excess of the NLS1 galaxy Mrk 359 studied with an XMM-Newton-NuSTAR monitoring campaign
• On the relativistic iron line and soft excess in the Seyfert 1 galaxy Markarian 335
• Multi-timescale reverberation mapping of Mrk 335
• The first broadband X-ray view of the narrow line Seyfert 1 Ton S180
• Lifting the curtain: The Seyfert galaxy Mrk 335 emerges from deep low-state in a sequence of rapid flare events
• Relationship between X-ray spectral index and X-ray Eddington ratio for Mrk 335 and Ark 564
• Spectral and Time Series Analyses of the Seyfert 1 AGN: Zw 229.015
• Origin of the Characteristic X-ray Spectral Variations of IRAS 13224$-$3809
• An XMM-Newton Study of Six Narrow-Line Seyfert 1 Galaxies at z = 0.35--0.92
• A systematic study of photoionized emission and warm absorption signatures of the NLS1 Mrk 335
• Exploring the Link between the X-ray Power Spectra and Energy Spectra of Active Galactic Nuclei
• A Search for Fast X-ray Variability from Active Galactic Nuclei using Swift