It is currently Tue Oct 08, 2024 3:21 am

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Wed Nov 28, 2012 5:27 am 
Offline

Joined: Wed Nov 21, 2012 9:23 am
Posts: 1
I'm new to GALPROP and I was wondering if there is a way to use my own gas column density distribution (taken from other surveys) and feed GALPROP with that to get the emission.

Thanks,
Simone


Top
 Profile  
 
PostPosted: Wed Nov 28, 2012 9:36 am 
Offline

Joined: Wed May 17, 2006 7:02 am
Posts: 285
Location: MPE Garching
yes, just make a file in the same format (FITS 17 rings with same radius boundaries) and replace its name in the GALDEF file.

_________________
Andy Strong, MPE


Top
 Profile  
 
PostPosted: Wed Nov 28, 2012 9:44 am 
Offline
Site Admin

Joined: Fri Jul 18, 2008 3:04 pm
Posts: 61
Location: Stanford
Hi Simone,

It is possible to use your own gas column density distributions as long as it follows the format required for GALPROP. It does not allow for much freedom.

The maps should be in CAR projection with the galactic center at the left boundary of the map and l increasing to the right. This is opposite to the usual convention.

The maps should be split up into galacto-centric annuli with the annuli boundaries given in a table in the first extension. The CO and HI maps should have identical boundaries.

It should be best to try to imitate the files distributed as closely as possible. There is very minimal error checking when reading in the files so you should carefully check the results.

For a description of how we generate the annuli maps for GALPROP, please see the appendix of
http://adsabs.harvard.edu/abs/2012ApJ...750....3A


Top
 Profile  
 
PostPosted: Wed Nov 28, 2012 10:36 am 
Offline

Joined: Wed May 17, 2006 7:02 am
Posts: 285
Location: MPE Garching
Re FITS standard:
it is standard enough FITS to have e.g. CRVAL1=0.25 and CDELT1=0.5 for longitude as we do thoughout GALPROP (also in the CAR output skymaps). The orientation should be taken care of in the visualization tool. There is no 'left' or 'right' in a FITS file, just numbers !

_________________
Andy Strong, MPE


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group