[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: xrt_co: - Draft proposal
Ed,
Interesting idea and it might work. I measured the differential rotation
using XBP many years ago. That was done manually and with a limited
dataset, but the velocities in question were obtained to an accuracy of
a few tenths of a km/sec. You're looking for at least an order of
magnitude better precision and you now have computers to help. so it
might be possible. One thing though: the longer-lived ones may well be
more deeply anchored and might be less affected by the meridional
circulation. so you should target intermediate lifetimes. A feature that
lives for 7 days is really an active region. I would target those with a
maximum lifetime of one day.
Leon
Ed Deluca wrote:
> Attached is a draft proposal for a set of observations designed to
> measure the
> meridional circulation from XBPs. It is a difficult and time consuming
> task,
> so please review and comment on the feasibility and science value. If
> we think this is worthwhile I will present it to the SSC in September.
>
> Ed
>
>
> ------------------------------------------------------------------------
>
>
>
>
>
> ===================================================================
>
> Dr. Edward E. DeLuca Smithsonian Astrophysical Observatory
>
> edeluca@cfa.harvard.edu MS 58
>
> Office 617 496 7725 60 Garden Street
>
> Fax 617 496 7577 Cambridge, MA 02138
>
> Cell 508 728 5424 USA
>
> ===================================================================
>
>
>
>
>
--
***********************************************************
Dr. Leon Golub; Harvard-Smithsonian Center for Astrophysics
60 Garden Street, Cambridge MA 02138
Ph: 617 495 7177; Fax: 617 496 7577
e-mail: lgolub@cfa.harvard.edu
http://hea-www.harvard.edu/~golub/HomePage.html
***********************************************************