Displaying only features above a certain flux density level


 

Although already very sensitive, the quality of the data still needs to be improved in order to remove the various systematic errors that can be seen. However, for the time being one can look at ``real'' emission features by choosing a colour lookup table that hides the low-level errors.


 

 
Fig. 10: Image of NGC 1511 and its surroundings above the level of systematic errors visible in Fig. 9. Almost all the features visible in this display can be considered to be real.
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