Four Years of Extreme Ultraviolet Observations of Markarian 421. II. Temporal Analysis | Zendy

I. Cagi | Zendy; I. E. Papadakis | Zendy; Antonella Fruscione | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Four Years of Extreme Ultraviolet Observations of Markarian 421. II. Temporal Analysis

Author(s) -

I. Cagi,

I. E. Papadakis,

Antonella Fruscione

Publication year - 2001

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/318303

Subject(s) - extreme ultraviolet , physics , astrophysics , extreme ultraviolet lithography , bl lac object , spectral density , spectral analysis , satellite , data set , astronomy , blazar , gamma ray , spectroscopy , optics , computer science , laser , telecommunications , artificial intelligence

The Extreme Ultraviolet Explorer (EUVE) satellite accumulated ~one millionseconds of public data between 1994 and 1997 for the BL Lacertae objectMarkarian 421. This is the second of two papers in which we present the resultsof spectral and temporal analysis of this EUVE data set. We analyze in thepresent paper the imaging data by means of power spectrum and structurefunction techniques, while the spectral analysis is presented in a companionpaper. We find for MRK 421 a power spectrum with slope -2.14 +- 0.28 with abreak at ~3 days. This is the first time that a break in the power spectrum ofa BL Lacertae object has been found. We also find evidence of non-stationarityfor MRK 421 EUV emissionComment: Accepted for publication in the Astrophysical Journal. 16 pages, 14 Postscript figures, 3 Table

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research