| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
20 April 2024 |
|
| | | |
|
Article forum
| |
|
HI deficiency in the galaxy cluster ACO 3627. ATCA observations in the Great Attractor region | B. Vollmer
; V. Cayatte
; W. van Driel
; P.A. Henning
; R.C. Kraan-Korteweg
; C. Balkowski
; P.A. Woudt
; W. Duschl
; | Date: |
12 Feb 2001 | Subject: | astro-ph | Affiliation: | 1,2,8), V. Cayatte , W. van Driel (1,3), P.A. Henning , R.C. Kraan-Korteweg (1,5), C. Balkowski , P.A. Woudt (6,7), and W. Duschl (2,8) ( DAEC, Observatoire de Paris, France, ITA, Univ. Heidelberg, Germany, Unite Scientifique Nancay, Observatoire de | Abstract: | 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 sim 1 mJy/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 3-sigma HI mass limit of our observations is sim 7 x 10^8 M_{odot} for a line width of 150 km s^{-1}. 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. 2000). 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. | Source: | arXiv, astro-ph/0102200 | Services: | Forum | Review | PDF | Favorites |
|
|
No message found in this article forum.
You have a question or message about this article?
Ask the community and write a message in the forum.
If you want to rate this article, please use the review section..
To add a message in the forum, you need to login or register first. (free): registration page
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |