Browsing by Subject "galaxies: Seyfert"

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Evidence of jet-induced optical microvariability in radio-loud narrow-line Seyfert 1 galaxies

Ojha, Vineet; Jha, Vivek Kumar; Chand, Hum; Singh, Veeresh (Monthly Notices of the Royal Astronomical Society, 2022-08)

To quantify the role of radio jets for Intra-Night Optical Variability (INOV) in radio-loud narrow-line Seyfert 1 (RLNLSy1) galaxies, we report the first systematic comparative INOV study of 23 RLNLSy1 galaxies, with 15 ...
The first look at narrow-line Seyfert 1 galaxies with eROSITA

Grünwald, G. ,et.al.; Rakshit, S. (Astronomy & Astrophysics, 2023-01)

We present the first look at the spectral and timing analysis of narrow-line Seyfert 1 galaxies (NLS1s) with the extended ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Spectrum-Roentgen-Gamma (SRG) ...
Possible ∼1 hour quasi-periodic oscillation in narrow-line Seyfert 1 galaxy MCG–06–30–15

Gupta, Alok C. et al. (Astronomy & astrophysics, 2018-08)

We found a possible ~1 h quasi-periodic oscillation (QPO) in a ~55 ks X-ray observation of the narrow-line Seyfert 1 galaxy MCG–06–30–15 made with the XMM-Newton EPIC/pn detector in the energy range 0.3–10 keV. We identify ...

Now showing items 1-3 of 3

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