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Independent Black Hole Mass Estimation for the γ-ray Detected Archetypal Narrow-Line Seyfert 1 Galaxy 1H 0323+342 from X-ray Variability
Hai-Wu Pan, Weimin Yuan, Su Yao +2
As a newly discovered class of radio-loud active galactic nuclei (AGNs), the γ-ray detected narrow-line Seyfert 1 galaxies (NLS1s) launch powerful jets which are generally found on…
Effects of Interstellar Dust Scattering on the X-ray Eclipses of the LMXB AX J1745.6-2901 in the Galactic Center
Chichuan Jin, Gabriele Ponti, Frank Haberl +2
AX J1745.6-2901 is an eclipsing low mass X-ray binary (LMXB) in the Galactic Centre (GC). It shows significant X-ray excess emission during the eclipse phase, and its eclipse light…
Discovery of a 23.8h QPO in the SWIFT light curve of XMMU J134736.6+173403
Stefania Carpano, Chichuan Jin
XMMU J134736.6+173403 is an X-ray source discovered serendipitously by XMM-Newton which was found to be spatially coincident with a pair of galaxies, including a Seyfert 2 galaxy,…
SDSS J211852.96-073227.5: a new γ-ray flaring narrow-line Seyfert 1 galaxy
Hui Yang, Weimin Yuan, Su Yao +6
We report on the identification of a new γ-ray-emitting narrow-line Seyfert 1 (NLS1) galaxy, SDSS J211852.96-073227.5 (hereinafter J2118-0732). The galaxy, at a redshift of 0.26, i…