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: http://www.naic.edu/alfa/ealfa/meeting1/minutes/virgo.html
Дата изменения: Mon May 8 23:01:36 2006 Дата индексирования: Sun Dec 23 01:45:24 2007 Кодировка: Поисковые слова: mdi |
Four new detections were shown along with their comparable HIPASS spectra which are, as expected, much noisier. Weak detections were also confirmed by pointed Jodrell observations.
Riccardo | The redshift distribution is of a region off-center from the cluster so the results may show what is expected just from the increase in the volume sampled behind the cluster |
Jon | The targetted field doesn't cover any of the clouds with sysematically higher velocity. |
Martha H. | Primary/secondary distances do indicate an elongation into the background for Virgo, along the line of sight. |
Wim vD. | Some of us will be back in a few months to use AO to look at LSB galaxies in Virgo. |
Noah B. | You should have gone beyond 2500 km/s to look at galaxies in void. |
Jon | Yes, that was obvious when we looked at the redshift distribution. |
Noah B. | How far can you go? |
Jon | 3500-4000 km/s with Jodrell Bank, which we are in the process of doing. |
Peppo G. | Are you planning to cover more of the cluster? |
Jon | We'd like to, but we have no more time yet. |
Lister | You need to know distances to these objects. |
Jon | We put all at 16 Mpc. |
Lister | But the objects at 2500 km/s must be in the background, right? |
Jon | Not according to Binggeli. |
Lister | But he's looking in core and this region is off to one side. |
Jon | It should be true for the area I'm looking at; he includes different galaxy "clouds". |
Lister | Do you have any plan to get redshift independent distances? |
Jon | Some of them should have them already. |
Wolfram F. | Do the velocity widths suggest that there should be optical counterparts? |
Jon | Yes. One is very narrow so I suspect it may be a face on galaxy. |
Steve S. | The distribution of velocities is very interesting. You could also look at the distribution of widths to see whether they are likely to be at larger distances. |