VizieR Online Data Catalog: Measuring dark energy properties with PS1 SNe. II. (Jones+, 2018)

The PS1 Medium Deep Survey covers 10 7deg² fields in five fi with typical observing cadences in a given field of six observations per 10 days. Over its 4yr of operation, PS1 flagged ~5200 likely SNe. Spectroscopic follow-up was triggered for ~10% of SNe, typically those with r<~22mag, on a wide variety of spectroscopic instruments.

During the last year of PS1, we began a survey to obtain spectroscopic host galaxy redshifts for the majority of the sample, both those with SN spectra and those without. This survey primarily used the Hectospec multifiber instrument on the MMT. We also measured redshifts with the Apache Point Observatory (APO) 3.5m telescope, the WIYN telescope, and, for two of the most southern medium-deep fields, the Anglo-Australian Telescope (AAT). An additional ~600 of our redshifts came from SDSS or other public redshift surveys. We chose targets independent of SN type in order to build a sample without any color or shape selection bias. Of 3930 targets, the host galaxies of 3261 SN candidates had strong enough spectral features and high enough S/N to yield reliable spectroscopic redshifts. These data are discussed in detail in Paper I, Jones+ 2017ApJ...843....6J

After SN discovery and redshift follow-up, the PS1 light curves were reprocessed. See section 2.1 for further details.

(2 data files).