IIA Institutional Repository

Browsing by Subject "Galaxies: seyfert"

Browsing by Subject "Galaxies: seyfert"

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  • Dissecting galaxies: separating star formation, shock excitation and AGN activity in the central region of NGC 613 
    Davies, R. L; Groves, B; Kewley, L. J; Medling, A. M; Shastri, P; Maithil, J; Kharb, P; Banfield, J; Longbottom, F; Dopita, M. A; Hampton, E. J; Scharwachter, J; Sutherland, R; Jin, C; Zaw, I; Juneau, S (Oxford University Press on behalf of the Royal Astronomical Society, 2017-08)
    The most rapidly evolving regions of galaxies often display complex optical spectra with emission lines excited by massive stars, shocks and accretion on to supermassive black holes. Standard calibrations (such as for ...
  • Rare Finding of a 100 Kpc Large, Double-lobed Radio Galaxy Hosted in the Narrow-line Seyfert 1 Galaxy SDSS J103024.95+551622.7 
    Rakshit, S; Stalin, C. S; Hota, A; Konar, C (IOP Publishing, 2018-12)
    Among the many varieties of active galactic nuclei (AGNs) known, narrow-line Seyfert 1 (NLSy1) galaxies are a puzzling class, particularly after the discovery of γ-ray emission in a handful of them using observations from ...
  • Spectral and time series analyses of the seyfert 1 AGN: Zw 229.015 
    Adegoke, Oluwashina; Rakshit, S; Mukhopadhyay, B (Oxford University Press on behalf of the Royal Astronomical Society, 2017-05)
    We analyse the spectra of the archival XMM–Newton data of the Seyfert 1 AGN Zw 229.015 in the energy range 0.3–10.0 keV. When fitted with a simple power law, the spectrum shows signatures of weak soft excess below 1.0 keV. ...
  • X-Ray Spectral Variability of the Seyfert Galaxy NGC4593 
    Ghosh, K. K; Soundararajaperumal, S (European Southern Observatory, 1993-06)
    X-ray (0.1-10 keV) spectra of NGC 4593 were obtained with EXOSAT on seven epochs between 1984 and 1986 using the low and medium energy detectors. Detailed results of the spectral analysis of the seven spectra (obtained ...

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