SIMBAD references

2001A&A...369..432V - Astronomy and Astrophysics, volume 369, 432-440 (2001/4-2)

HI deficiency in the galaxy cluster ACO 3627. ATCA observations in the Great Attractor region.

VOLLMER B., CAYATTE V., VAN DRIEL W., HENNING P.A., KRAAN-KORTEWEG R.C., BALKOWSKI C., WOUDT P.A. and DUSCHL W.J.

Abstract (from CDS):

ATCA 21 cm Hi observations of the rich galaxy cluster ACO 3627 in the Great Attractor region are presented. Three fields of 30' diameter located within one Abell radius of ACO 3627 were observed with a resolution of 15'' and an rms noise of ∼1mJy/beam. Only two galaxies were detected in these fields. We compare their HI distribution to new optical R-band images and discuss their velocity fields. The first galaxy is a gas-rich unperturbed spiral whereas the second shows a peculiar HI distribution. The estimated 3σ HI mass limit of our observations is ∼7x108M for a line width of 150km/s. The non-detection of a considerable number of luminous spiral galaxies indicates that the spiral galaxies are HI deficient. The low detection rate is comparable to the HI deficient Coma cluster (Bravo-Alfaro et al., 2000AJ....119..580B). ACO 3627 is a bright X-ray cluster. We therefore suspect that ram pressure stripping is responsible for the HI deficiency of the bright cluster spirals.

Abstract Copyright:

Journal keyword(s): galaxies: interactions - galaxies: ISM - galaxies: kinematics and dynamics

Nomenclature: Table 3: WKK98 NNNN (Nos 6801, 6489) N=2.

Simbad objects: 7

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