首页|Long Term X-Ray Spectral Variations of the Seyfert-1 Galaxy Mrk 279

Long Term X-Ray Spectral Variations of the Seyfert-1 Galaxy Mrk 279

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we present the results from a long term X-ray analysis of Mrk 279 during the period 2018-2020.We use data from multiple missions-AstroSat,NuSTAR and XMM-Newton,for the purpose.The X-ray spectrum can be modeled as a double Comptonization along with the presence of neutral Fe Kα line emission,at all epochs.We determined the source's X-ray flux and luminosity at these different epochs.We find significant variations in the source's flux state.We also investigate the variations in the source's spectral components during the observation period.We find that the photon index and hence the spectral shape follow the variations only over longer time periods.We probe the correlations between fluxes of different bands and their photon indices,and found no significant correlations between the parameters.

galaxies:Seyfertgalaxies:individual(Mrk 335)X-rays:galaxies

K.Akhila、Ranjeev Misra、Savithri H.Ezhikode、K.Jeena

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Department of Physics,Providence Women's College,University of Calicut,Kerala 673009,India

Inter-University Centre for Astronomy and Astrophysics(IUCAA),PB No.4,Ganeshkhind,Pune 411007,India

Department of Physics and Electronics,CHRIST(Deemed to be University),Hosur Main Road,Bangalore 560029,India

ISRO

DS_2B-130132/11/2020-Section2

2024

天文和天体物理学研究
中国科学院国家天文台

天文和天体物理学研究

CSTPCD
影响因子:0.406
ISSN:1674-4527
年,卷(期):2024.24(6)