[alma-config] My HP address and etc.

[Leonia Kogan]

Comment about short spacing-angular resolution

Of cource the short spacing argument is very important.
But selecting configuration with good short spacing coverage we are 
coming to a center condencing UV coverage which gives a wider sinthesize beam.

So improving short spacing coverage we are loosing in angular resolution.
The minimum spacings of A array and B array of Min and Kogan's straw person 
plan may be too large but on the other hand the angular resolution 
of these arrays should be better than a center condensed configuration.

Leonia


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>From owner-alma-config at kochab.cv.nrao.edu Wed Jan  3 10:04 MST 2001
Date: Thu, 04 Jan 2001 01:59:37 +0900
From: "Morita, Koh-Ichiro" <morita at nro.nao.ac.jp>
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Dear all,

A happy new year.

My HP address:
I have come back to Nobeyama from Tucson.
So, my site in NRAO tucson will be closed soon.
If you want to see my report about ACA, please contact at
http://www.nro.nao.ac.jp/~morita/CONFIG/aca_study.html

Comment about the short spacing:
I strongly agree with Mark's argument about short spacing problem 
in his email on 12/19.  Short spacing coverage is very important
for higher resolution observations.  For compact sources in star
forming regions, we should measure visibilities at very short 
baselines to avoid the effect from compact structures within
the primary beam.  So, I think, the minimum spacings of A array and 
B array of Min and Kogan's straw person plan are too large.

Koh-Ichiro
----------------

Koh-Ichiro Morita
Nobeyama Radio Observatory
National Astronomical Observatory,

Minamimaki, Minamisaku, 
Nagano 384-1305, Japan
Email morita at nro.nao.ac.jp


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