From: Jun-Hui Zhao 
To: Alice Argon 
Cc: Chunhua Qi 
Subject: Re: Frequency Shift in MIR and/or MIRIAD

Will she be here for a visit soon?
     Jun-Hui

On Mon, 15 Oct 2012, Alice Argon wrote:

> Jun-Hui and Charlie,
>
> As I mentioned at the Friday meeting, Anaelle Maury pointed out that there
> is a frequency difference between data calibrated here (in MIR, MIRIAD, or
> both) and data not calibrated here (presumably in CASA).  We are now
> troubleshooting the problem to get some insight into where the problem
> arises.  I will send you information as I get it.
>
> First Clue:
>
> She says,
>  "As regards the spectral shift: it is inhomogeneous accross the full
>   bandwidth and seems to depend on frequency.  I attach to this email a
>   figure showing a spectrum from the published dataset (in black) compared
>   to the same spectrum from the calibrated data you sent me."
>
> Therefore, please see attached figure.
>
>  Alice
>