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A&A 368, 824-834 (2001)
DOI: 10.1051/0004-6361:20010091
Global molecular gas properties of Seyfert galaxies
I. The observational data
S. J. Curran1, 2, A. G. Polatidis1, S. Aalto1 and R. S. Booth11 Onsala Space Observatory, Chalmers University of Technology, 439 92 Onsala, Sweden
2 European Southern Observatory, Casilla 19001, Santiago 19, Chile
(Received 19 December 2000 / Accepted 12 January 2001)
Abstract
In this paper we present large-scale maps of the
transitions of CO and HCN in a sample of 7 near-by
Seyfert galaxies. These are the first large-scale maps of CO in NGCs
2273 and 5033 and of HCN in all of the sample. From the maps we
tabulate the integrated intensities at various extents and calculate
the corresponding luminosities. The CO luminosities are compared with
those of Young et al. (1995). It is our intention to use these results in
conjunction with those of a distant Seyfert sample, in Paper II
(Curran et al. 2001a), in order to analyse the differences in molecular gas
luminosities and distributions, not only between the full sample and
other galaxy types, but between the near-by and distant
samples. Immediately, from the observational data we see that the HCN is distributed
beyond the central beam (~1 kpc) in much of the sample. We
consider this to be an important result which we will discuss further in
Paper II.
Key words: galaxies: Seyfert -- galaxies: abundances -- galaxies: ISM
Offprint request: S. J. Curran, sjc@oso.chalmers.se
SIMBAD Objects
© ESO 2001
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