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Home List of Titles The Arecibo Galaxy Environment Survey II: a H I view of the Abell cluster 1367 and its outskirts
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/229545
- The Arecibo Galaxy Environment Survey II: a H I view of the Abell cluster 1367 and its outskirts
- Cortese, L.; Minchin, R. F.; Auld, R. R.; Davies, J. I.; Catinella, B.; Momjian, E.; Rosenberg, J. L.; Taylor, R.; Gavazzi, G.; O'Neil, K.; Baes, M.; Boselli, A.; Bothun, G.; Koribalski, B.; Schneider, S.; Van Driel, W.
- We present 21 cm HI line observations of 5x1 square degrees centered on the local Abell cluster 1367 obtained as part of the Arecibo Galaxy Environment Survey. One hundred sources are detected (79 new HI measurements and 50 new redshifts), more than half belonging to the cluster core and its infalling region. Combining the HI data with SDSS optical imaging we show that our HI selected sample follows scaling relations similar to the ones usually observed in optically selected samples. Interestingly all galaxies in our sample appear to have nearly the same baryon fraction independently of their size, surface brightness and luminosity. The most striking difference between HI and optically selected samples resides in their large scale distribution: whereas optical and X-ray observations trace the cluster core very well, in HI there is almost no evidence of the presence of the cluster. Some implications on the determination of the cluster luminosity function and HI distribution for samples selected at different wavelength are also discussed.
- Publication type
- Journal article
- Monthly Notices of the Royal Astronomical Society, Vol. 383, no. 4 (Feb 2008), pp. 1519-1537
- Publication year
- FOR Code(s)
- 0201 Astronomical and Space Sciences
- Abell 1367; Clusters; Galaxy evolution; Peculiar galaxies; Radio lines; Surveys
- Publisher URL
- Copyright © 2007 Royal Astronomical Society.
- Peer reviewed