1998A&A...338....8W


Query : 1998A&A...338....8W

1998A&A...338....8W - Astronomy and Astrophysics, volume 338, 8-14 (1998/10-1)

Multiwavelength observations of a Seyfert 1 galaxy detected in ACO 3627.

WOUDT P.A., KRAAN-KORTEWEG R.C., FAIRALL A.P., BOEHRINGER H., CAYATTE V. and GLASS I.S.

Abstract (from CDS):

ACO 3627 is a rich, nearby cluster of galaxies at the core of the Great Attractor. At the low galactic latitude of b=-7.2° the galactic extinction is significant. Nevertheless, its proximity makes it a prime target for studies of environmental effects on its cluster members. Here, we report on a multi-wavelength study of a Seyfert 1 galaxy at 30arcmin from the centre of ACO 3627. Its Seyfert nature was discovered spectroscopically and confirmed in X-rays. We have obtained BJ and RC CCD photometry as well as J, H, K and L aperture photometry at the SAAO, low and high resolution spectroscopy (ESO and SAAO), 21 cm line observations (Parkes Observatory) and X-ray ROSAT PSPC data. The Seyfert 1 galaxy is of morphology SBa(r). It has a nearby companion (dS0) but shows no signs of interaction. A consistent value for the galactic extinction of AB=1.6mag could be determined. The nucleus of the Seyfert is very blue with a strong (BJ-RC) colour gradient in the inner 2.5arcsec. The extinction-corrected near-infrared colours of WKK 6092 are typical of a Seyfert 1 and the X-ray spectrum conforms to the expectation of a Seyfert as well. The galaxy has a very low H I flux. This could be explained by its morphology, but also - due to its very central position within the rich Norma cluster - to ram pressure stripping.

Abstract Copyright:

Journal keyword(s): dust, extinction - galaxies: clusters: individual: ACO 3627 - galaxies: individual: WKK 6092 - galaxies: Seyfert - galaxies: distances and redshifts - galaxies: photometry

Nomenclature: WKK98 NNNN (Nos 6092, 6103) N=2.

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 1566 Sy1 04 20 00.3968473248 -54 56 16.624708764 10.29 10.19 9.73 9.21 10.1 ~ 796 2
2 2MASX J16115141-6037549 Sy1 16 11 51.3943954128 -60 37 55.030263996   14.7       ~ 65 0
3 LEDA 2802020 G 16 11 59.4 -60 37 43           ~ 8 0
4 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 271 2
5 ESO 137-6 GiG 16 15 03.864 -60 54 26.14   13.08 12.83 11.33   ~ 97 0

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2022.05.20-18:48:47

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