First Results from a XMM-Newton Survey of a Distance-Limited (D<22 Mpc) Sample of Seyfert Galaxies: I- the Agns

M. Cappi; G. Di Cocco; F. Panessa; L. Foschini; M. Trifoglio; F. Gianotti; J. Stephen; L. Bassani; M. Dadina; A. Comastri; R. Della Ceca; A. V. Filippenko; L. C. Ho; K. Makishima; G. Malaguti; J. Mulchaey; G. G. C. Palumbo; E. Piconcelli; W. Sargent; K. Weaver; G. Zamorani

arXiv · astro-ph/0202245

First Results from a XMM-Newton Survey of a Distance-Limited (D<22 Mpc) Sample of Seyfert Galaxies: I- the Agns

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Abstract

We report here preliminary results from a survey of nearby Seyfert galaxies using the EPIC CCDs on board XMM-Newton. The total sample consists of 28 Seyfert galaxies, and constitute a well-defined, complete (B<12.5 mag), and volume-limited (D<22 Mpc) sample of Seyfert galaxies in the northern (Delta > 0 deg.) hemisphere. The survey has been initiated in June, 2001, and we report here the results for the 6 objects analyzed so far, namely: NGC3185, NGC3486, NGC3941, NGC4138, NGC4565, and NGC5033. The main goal of this survey is to obtain a better and unbiased understanding of the ``typical'' Seyfert X-ray spectrum (e.g. the distribution of their absorption column density) in the local Universe. This is crucial to verify the predictions and, thus, to validate unified models, and is a fundamental parameter of synthesis models for the X-ray background. A companion poster (paper II: L. Foschini et al., these proceedings) illustrates how this survey will also allow a comprehensive spectral study of the brightest (highest-luminosity) off-nuclear sources in the galaxies.

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M. Cappi, G. Di Cocco, F. Panessa, L. Foschini, M. Trifoglio, F. Gianotti, J. Stephen, L. Bassani, M. Dadina, A. Comastri, R. Della Ceca, A. V. Filippenko, L. C. Ho, K. Makishima, G. Malaguti, J. Mulchaey, G. G. C. Palumbo, E. Piconcelli, W. Sargent, K. Weaver, G. Zamorani. 2002-02-13. First Results from a XMM-Newton Survey of a Distance-Limited (D<22 Mpc) Sample of Seyfert Galaxies: I- the Agns. https://arxiv.org/abs/astro-ph/0202245

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