[alma-config] simulation image library
Min Yun
myun at aoc.nrao.edu
Fri Apr 7 17:17:20 EDT 2000
John,
I have looked at your images and included the 10KDOT and M51CO into
the image library. The 10KDOT image is a more reasonable test image
for SKA, but it is probably less relevant for ALMA since we do not
expect such high source density within the single primary beam.
I will leave it in anyhow. I worry about the lack of dynamic
range in M51 CO image, but it prompted me to measure DR for all
of the astronomical images for a more quantitative feel.
The single dish images have a low DR as expected.
-- Min
>
> Hi Min,
>
> Sorry for not answering earlier, I've been out of email contact at
> a course for 2 days - I just had a very quick look at gif the file on
> your site. I see that you have some images of cygnus A and M51 but it
> still might be worth taking the fits images from my area at
> http://www.oso.chalmers.se/~jconway/ALMA/IMAGES/
> as well as the full resulotion image used for making the AIPS fake data
> I have the image convolved to different resolution to use in
> the final comparison of results.
>
> Also in that area I have
> a image 10KDOTS which is just a AIPS FITS image with 10K
> point components chosen according to a s^{-1.5} luminosity
> distribution (with S cutoff). The idea was to simulate doing deep field
> imaging. More realistic simulations could probably be
> done with more accurate source counts. Maybe you already have
> an image of this type in your list of .gif images, but
> I think something like this should be included in the
> tests.
>
> I wonder also if we have enough really complex
> images, - maybe we can just take some off the HST
> web site, maybe you could suggest some to add to
> the beauty contest before we get to vote.
>
> John.
>
> P.S April 20th is actually much better for me for
> the next telscon, I probably could not have made
> the 19th,
>
>
>
>
>
>
>
> On Thu, 6 Apr 2000, Min Yun wrote:
>
> >
> > One of the first deadlines we agreed on during the Tucson meeting was
> > the selection of test images by this week. Well, the response to
> > my call for test images was totally underwhelming, so I extended it
> > a little longer. I would like to thank those of you who have contributed
> > thus far. If you have a truly excellent image that you have to
> > include in the list, let me know within the next 48 hrs.
> >
> > I have just put up the gif images of 11 potential targets, and I am
> > still waiting to receive a couple more images that are left blank
> > at the moment. Please take a look and start thinking ahead. Let's
> > try to reduce this list down to about 5 by the end of next week.
> >
> > Al Wootten has posted the simulation strategy as we agreed on during
> > the Tucson meeting as www.cv.nrao.edu/~awootten/mmaimcal/simulate.txt.
> > Along with my full summary of the meeting, this will also eventually
> > find its home in the official configuration working group page
> > later on.
> >
> >
> >
> >
> > -- Min
> >
>
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