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ifsf_optstelz.pro


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IFSFIT

result = ifsf_optstelz(wave, data, model [, lrange=dblarr(2)] [, dzrange=dblarr(2)] [, dzstep=double] [, quiet=byte])

Find best-fit stellar redshift via cross-correlation with a stellar model. Data and model are assumed to be either both in the rest frame or both in the observed frame.

Return value

Best fit redshift, as a redshift difference between the data and model.

Parameters

wave in required type=dblarr(N)

Wavelengths.

data in required type=dblarr(N)

Flux of spectrum to fit.

model in required type=dblarr(N)

Stellar model.

Keywords

lrange in optional type=dblarr(2) default=[0,Inf]

Wavelength range over which to do x-correlation.

dzrange in optional type=dblarr(2) default=[-0.005,0.005]

Range of lags, in redshift space.

dzstep in optional type=double default=0.00002

Lag step, in redshift space.

quiet in optional type=byte default=0

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:

2013sep25, DSNR, created 2013nov21, DSNR, documented, renamed, added license and copyright

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Modification date: Thu Nov 21 10:12:05 2013
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