bandpasses in RM

[Nicholas Walton]

Hi Bob,

for future completeness I think we might need a category for
astro-particles. here i'm thinking of neutrinos, cosmic rays,
gravitational waves and so forth. I'm not quite sure how these fit into
the 'bandpass concept' though but with the wide variety of data from
'astroparticle' observatories coming up (MAGIC, Auger, LISA, etc) I'm sure
we need to be able to allow for this sort of data.

Cheers, Nic


========================================================================
Dr N. A. Walton
(AstroGrid Project Scientist)   Tel:   +44 1223 337503
Institute of Astronomy          FAX:   +44 1223 337523
University of Cambridge         WWW:   http://www.astrogrid.org
Madingley Road                  WWW:   http://www.ast.cam.ac.uk/~naw
Cambridge, CB3 0HA              email: naw at ast.cam.ac.uk
========================================================================


On Mon, 22 Mar 2004, Arnold Rots wrote:

> In principle I agree with the seven, but wonder where submillimeter
> falls and whether radio ought to be differentiated.  I mean, otical
> covers just one octave, while radio comprises at least 10 octaves...
> The distribution seems rather uneven.
>
>   - Arnold
>
> Robert Hanisch wrote:
> > I am starting to make the updates to the RM document brought about by the
> > RFC and there is the matter of bandpass names, which we were urged to
> > standardize and make consistent.  I remind you that now we have the
> > following eight bandpasses as allowed values for Coverage.Spectra:
> >
> >   Radio
> >   Millimeter
> >   Infrared
> >   Optical
> >   UV
> >   EUV
> >   X-ray
> >   Gamma-ray
> >
> > We have two names that are acronyms and the others not, and it does seem
> > would should be self-consistent.
> >
> > How would people feel about consolidating to seven named regions, all
> > spelled-out?
> >
> >   Radio
> >   Millimeter
> >   Infrared
> >   Optical
> >   Ultraviolet
> >   X-ray
> >   Gamma-ray
> >
> > Ultraviolet would "consume" EUV.  My reasoning is
> > 1) These are broad definitions at this level; further specificity is
> > provided by Coverage.Spectral.Bandpass and the central, minimum, and maximum
> > wavelength elements.
> > 2) EUV is infrequently observed; only a handful of resources would
> > characterize themselves as specific to EUV and could still be easily found
> > with Spectral.Coverage = UV plus other constraints.
> >
> > We could also include EUV spelled-out,
> >
> >   Extreme-Ultraviolet
> > or
> >   Extreme Ultraviolet
> >
> > but for reasons mentioned above it seems simpler to me to leave it out.
> >
> > Thanks,
> > Bob
> >
> --------------------------------------------------------------------------
> Arnold H. Rots                                Chandra X-ray Science Center
> Smithsonian Astrophysical Observatory                tel:  +1 617 496 7701
> 60 Garden Street, MS 67                              fax:  +1 617 495 7356
> Cambridge, MA 02138                             arots at head.cfa.harvard.edu
> USA                                     http://hea-www.harvard.edu/~arots/
> --------------------------------------------------------------------------
>