Proposal Details - 0720016
The first very broad-band monitoring, from optical/UV to $\gamma$-rays, of a Seyfert I galaxy on a month time scale (Petrucci)

Proposal Abstract

We propose to perform with INTEGRAL a long monitoring of 10 observations of 200 ks each of the Seyfert 1 galaxy Mkn 509 simultaneously with an already accepted XMM-Newton monitoring (10 pointings of 60 ks each spaced by 4 days) of this source.This will provide for the first time a very broad band spectral follow-up, from the UV to the soft $\gamma$-ray, of a Seyfert galaxy on a month time scale. This will permit: 1) to disentangle the different spectral components in the UV, soft X, medium X-ray and $\gamma$-ray bands, 2) to test different origin of the primary continuum by determining whether the shape of the X-ray continuum is related to the UV intensity 3) to elucidate the origin of the soft X-ray excess and 4) to determine the shape and variability of the Fe 6-7 KeV emission complex and it relation to the high energy ($>$ 10 keV) band. The proposed simultaneous INTEGRAL/XMM-Newton long monitoring of one of the brightest Seyfert galaxies is a unique opportunity to put firm conclusionson the still largely unknown nature and origin of the UV/X-ray/$\gamma$-ray emission of this class of objects.

Observation Strategy (Recommended by TAC)

Total of 1.2 Ms consisting of 10 observations of 120 ks coordinated with XMM-Newton observations, in the standard 5x5 dithering mode centred on RA, Dec = 311.041, -10.724 (l, b = 35.971, -29.855).

Proposal grade: A

Data Rights (Recommended by TAC)

The TAC has allocated the following specific data rights to this proposal: Mrk 509

Exposure Map

The exposure maps are in galactic coordinates and units of ksec, and the colour scale is indicated at the bottom. The green lines provide the 100 ksec contour.