2008ApJ...677..880M

Query : 2008ApJ...677..880M

2008ApJ...677..880M - Astrophys. J., 677, 880-883 (2008/April-3)

Correlated X-ray and optical variability in Markarian 509.

MARSHALL K., RYLE W.T. and MILLER H.R.

Abstract (from CDS):

We present the results of a 3 year monitoring campaign of the Seyfert 1 galaxy Markarian 509, using X-ray data from the Rossi X-Ray Timing Explorer and optical data taken by the SMARTS consortium. Both light curves show significant variations and are strongly correlated with the optical flux leading the X-ray flux by 15 days. The X-ray power spectrum shows a steep high-frequency slope of -2.0, breaking to a slope of -1.0 at a timescale of 34 days. The lag from optical to X-ray emission is most likely caused by variations in the accretion disk propagating inward.

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Journal keyword(s): Galaxies: Active - galaxies: individual (Mrk 509) - Galaxies: Seyfert

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 3516 Sy1 11 06 47.4632200800 +72 34 07.298374656   13.12 12.40     ~ 1638 0
2 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2270 1
3 MCG-06-30-015 Sy1 13 35 53.7691256160 -34 17 44.160716796   13.89 13.61 8.9   ~ 1559 0
4 NGC 5548 Sy1 14 17 59.5400291832 +25 08 12.603122268   14.35 13.73     ~ 2895 0
5 Mrk 509 Sy1 20 44 09.7504483224 -10 43 24.727155528   13.35 13.12 10.7   ~ 1370 0
6 Z 495-18 Sy1 22 42 39.3363009144 +29 43 31.302092640   14.86 14.16     ~ 748 1

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