SGNAPS: Software for Graphical Navigation, Analysis & Plotti

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owlice
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SGNAPS: Software for Graphical Navigation, Analysis and Plotting of Spectra

Post by owlice » Mon Oct 08, 2012 5:50 pm

[c]SGNAPS: Software for Graphical Navigation, Analysis and Plotting of Spectra[/c][/b]
Abstract: SGNAPS allows the user to plot a one-dimensional spectrum, together with the corresponding two-dimensional and a reference spectrum (for example the sky spectrum). This makes it possible to check on the reality of spectral features that are present in the one-dimensional spectrum, which could be due to bad sky subtraction or fringing residuals. It is also possible to zoom in and out all three spectra, edit the one-dimensional spectrum, smooth it with a simple square window function, measure the signal to noise over a selected wavelength interval, and fit the position of a selected spectral line. SGNAPS also allows the astronomer to obtain quick redshift estimates by providing a tool to fit or mark the position of a spectral line, and a function that will compute a list of possible redshifts based on a list of known lines in galaxy spectra. SGNAPS is derived from the plotting tools of VIPGI and contains almost all of their capabilities.

Credit: Paioro, Luigi; Franzetti, Paolo

Site: http://cosmos.iasf-milano.inaf.it/pandora/sgnaps.html
http://adsabs.harvard.edu/abs/2005PASP..117.1284S

Bibcode: 2012ascl.soft10005P

ID: ascl:1210.005
Last edited by Ada Coda on Fri Jan 11, 2019 12:31 pm, edited 1 time in total.
Reason: Updated code entry.
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