2018A&A...616L...6G


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.06CET19:49:33

2018A&A...616L...6G - Astronomy and Astrophysics, volume 616, L6-6 (2018/8-1)

Possible ∼1 hour quasi-periodic oscillation in narrow-line Seyfert 1 galaxy MCG-06-30-15.

GUPTA A.C., TRIPATHI A., WIITA P.J., GU M., BAMBI C. and HO L.C.

Abstract (from CDS):

We found a possible ∼1h quasi-periodic oscillation (QPO) in a ∼55ks 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 0.3-10keV. We identify a total modulation of ∼16% in the light curve and find a ~=3670s quasi-period using Lomb-Scargle periodogram (LSP) and weighted wavelet Z-transform (WWZ) techniques. Our analyses of eight light curves of MCG-06-30-15, indicated the possible presence of an oscillation during one of them. The LSP indicates a statistically significant (~=3σ) QPO detection. A WWZ analysis shows that the signal at this possible roughly 3670s period is present, and rather persistent, throughout the observation; however, a signal around 8735 s is more persistent. We briefly discuss models that can produce X-ray QPOs with such periods in narrow line Seyfert 1 galaxies, as both other claimed QPO detections in this class of AGN had very similar periods.

Abstract Copyright: © ESO 2018

Journal keyword(s): galaxies: active - galaxies: Seyfert

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 4U 0708-49 Sy1 07 08 41.4887418009 -49 33 06.308287663   16.02 15.7 12.7   ~ 411 0
2 7C 103144.10+395402.00 Sy1 10 34 38.5975589813 +39 38 28.181434249   17.37 16.90     ~ 296 1
3 ESO 383-35 Sy1 13 35 53.7686909139 -34 17 44.139127597   13.89 13.61 8.9   ~ 1361 0

    Equat.    Gal    SGal    Ecl

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2019.12.06-19:49:33

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