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ifsf_refinez.pro


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IFSFIT

result = ifsf_refinez(zinit, lambda, flux [, lref=double] [, searchwidth=double])

Refine initial guess for redshift by finding emission-line peak.

Return value

Redshift of emission-line peak.

Parameters

zinit in required type=double

Initial redshift guess.

lambda in required type=dblarr(N)

Wavelengths of spectrum.

flux in required type=dblarr(N)

Fluxes of spectrum.

Keywords

lref in optional type=double default=6562.8

Rest wavelength of expected emission line

searchwidth in optional type=double default=10

Half-width of search region, in A.

Author information

Author:

David S. N. Rupke:

Rhodes College Department of Physics 2000 N. Parkway Memphis, TN 38104 drupke@gmail.com

Copyright:

Copyright (C) 2013 David S. N. Rupke

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License or any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

History:

ChangeHistory:

2010jan19, DSNR, created 2013nov25, DSNR, documented, renamed, added license and copyright

File attributes

Modification date: Mon Nov 25 10:39:26 2013
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