Long Term X-Ray Spectral Variations of the Seyfert-1 Galaxy Mrk 279
- Title
- Long Term X-Ray Spectral Variations of the Seyfert-1 Galaxy Mrk 279
- Creator
- Akhila K.; Misra R.; Ezhikode S.H.; Jeena K.
- Description
- 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 K? line emission, at all epochs. We determined the sources X-ray flux and luminosity at these different epochs. We find significant variations in the sources flux state. We also investigate the variations in the sources 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. 2024. National Astronomical Observatories, CAS and IOP Publishing Ltd.
- Source
- Research in Astronomy and Astrophysics, Vol-24, No. 6
- Date
- 2024-01-01
- Publisher
- Institute of Physics
- Subject
- galaxies: individual (Mrk 335); galaxies: Seyfert; X-rays: galaxies
- Coverage
- Akhila K., Department of Physics, Providence Womens College, University of Calicut, Kerala, 673009, India; Misra R., Inter-University Centre for Astronomy and Astrophysics (IUCAA), PB No.4, Ganeshkhind, Pune, 411007, India; Ezhikode S.H., Department of Physics and Electronics, CHRIST (Deemed to be University), Hosur Main Road, Bangalore, 560029, India; Jeena K., Department of Physics, Providence Womens College, University of Calicut, Kerala, 673009, India
- Rights
- All Open Access; Green Open Access
- Relation
- ISSN: 16744527
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Akhila K.; Misra R.; Ezhikode S.H.; Jeena K., “Long Term X-Ray Spectral Variations of the Seyfert-1 Galaxy Mrk 279,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/13028.