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MOST OF HI MAS IN THE GALAXIES

HCG 23

HCG 33

HCG 88

 
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  channel maps.
 

SIGNIFICANT HI MASS IN TIDAL FEATURES

HCG 16

 

 
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    channel maps.

 HCG 31

  , 

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   channel maps.

HCG 96

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 channel maps.

    INTERMEDIATE CASE (see text)  

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HCG 79

 
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 channel maps. 

LITTLE HI COUPLED WITH GALAXIES 

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A) HI DEFICIENT GROUPS 

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HCG 40

HCG 44

HCG 92

 
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channel maps.

HCG 95

B) SINGLE HI CLOUD 

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HCG 26

HCG 49

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channel maps. 

The groups below have been considered appart for the conference since their nature (optically) is either not well defined or they are triplets.

In this conference Plana suggests that HCG 18 is a single galaxy based in new  optical Fabry-Perot data. In my opinion it might be two (this was my impression when I saw the velocity field).

HCG 54 is spectacular, but again not clear how many galaxies.

HCG 2 is a triplet.

I think that we can consider them when we write more extensive paper. HCG sample is heterogeneus enough to consider deliberately confusing groups.
 
 

HCG 54

 
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 channel maps.

HCG 2

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   channel maps.

HCG 18