2016
DOI: 10.3847/0004-6256/152/6/205
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REDSHIFT MEASUREMENT AND SPECTRAL CLASSIFICATION FOR eBOSS GALAXIES WITH THE REDMONSTER SOFTWARE

Abstract: We describe the redmonster automated redshift measurement and spectral classification software designed for the extended Baryon Oscillation Spectroscopic Survey (eBOSS) of the Sloan Digital Sky Survey IV (SDSS-IV). We describe the algorithms, the template standard and requirements, and the newly developed galaxy templates to be used on eBOSS spectra. We present results from testing on early data from eBOSS, where we have found a 90.5% automated redshift and spectral classification success rate for the luminous… Show more

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Cited by 41 publications
(40 citation statements)
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“…A new procedure and set of templates for fitting redshifts is being developed to handle better the lower signal-to-noise ratio of the fainter eBOSS targets. Specifically, quasars and galaxies will use a large number of fixed archetypes rather than a PCA basis set (Hutchinson et al 2016).…”
Section: Eboss Observationsmentioning
confidence: 99%
“…A new procedure and set of templates for fitting redshifts is being developed to handle better the lower signal-to-noise ratio of the fainter eBOSS targets. Specifically, quasars and galaxies will use a large number of fixed archetypes rather than a PCA basis set (Hutchinson et al 2016).…”
Section: Eboss Observationsmentioning
confidence: 99%
“…As mentioned above, these data served a crucial role for verification of the eBOSS, TDSS, and SPIDERS target samples. SEQUELS and eBOSS LRG spectra were used to optimize the performance of a new redshift classification scheme that now reliably classifies more than 90% of eBOSS LRG spectra (Hutchinson et al 2016), thus meeting the ambitious goal set forth at the beginning of the program . The sample also seeds the eBOSS footprint to be used for clustering studies.…”
Section: Sequels: Eboss Tdss and Spiders Datamentioning
confidence: 99%
“…19 The extraction algorithm has improved since BOSS; its description can be found in Appendix B of Bautista et al (2017). Recent improvements on coaddition and fluxcalibration are described in Hutchinson et al (2016) and Jensen et al (2016). The final eBOSS LRG spectra were classified and their redshifts measured primarily by redmonster 20 (Hutchinson et al 2016), complemented by redshifts obtained using spec1d (Bolton et al 2012).…”
Section: Galaxy Sample and Redshift Estimatorsmentioning
confidence: 99%
“…Recent improvements on coaddition and fluxcalibration are described in Hutchinson et al (2016) and Jensen et al (2016). The final eBOSS LRG spectra were classified and their redshifts measured primarily by redmonster 20 (Hutchinson et al 2016), complemented by redshifts obtained using spec1d (Bolton et al 2012). On average, 10% of the eBOSS LRG sample lacks a statistically confident redshift estimate due mainly to the low S/N of their spectra.…”
Section: Galaxy Sample and Redshift Estimatorsmentioning
confidence: 99%