ASCL.net

Astrophysics Source Code Library

Making codes discoverable since 1999

DAOSPEC: Measuring Equivalent Widths in Stellar Spectra

Discussion topics for individual codes
User avatar
owlice
Guardian of the Codes
Posts: 1043
Joined: Wed Aug 04, 2004 4:18 pm
Location: Washington, DC

DAOSPEC: An Automatic Code for Measuring Equivalent Widths in High-resolution Stellar Spectra

Postby owlice » Thu Nov 04, 2010 2:42 am

DAOSPEC: An Automatic Code for Measuring Equivalent Widths in High-resolution Stellar Spectra

Abstract: DAOSPEC is a Fortran code for measuring equivalent widths of absorption lines in stellar spectra with minimal human involvement. It works with standard FITS format files and it is designed for use with high resolution (R>15000) and high signal-to-noise-ratio (S/N>30) spectra that have been binned on a linear wavelength scale. First, we review the analysis procedures that are usually employed in the literature. Next, we discuss the principles underlying DAOSPEC and point out similarities and differences with respect to conventional measurement techniques. Then experiments with artificial and real spectra are discussed to illustrate the capabilities and limitations of DAOSPEC, with special attention given to the issues of continuum placement; radial velocities; and the effects of strong lines and line crowding. Finally, quantitative comparisons with other codes and with results from the literature are also presented.

Credit: Stetson, P. B.; Pancino, E.

Site: http://www1.cadc-ccda.hia-iha.nrc-cnrc. ... N/daospec/
http://adsabs.harvard.edu/abs/2008PASP..120.1332S

Bibcode: 2010ascl.soft11002S

ID: ascl:1011.002
Last edited by Ada Coda on Thu Aug 31, 2017 9:14 pm, edited 1 time in total.
Reason: Updated code entry.
Code-seeking owl at your service

Return to “Astrophysics Source Code Library”

Who is online

Users browsing this forum: No registered users and 3 guests

cron