The team Keck redshift survey 2: MOSFIRE spectroscopy of the GOODS-north field.
WIRTH G.D., TRUMP J.R., BARRO G., GUO Y., KOO D.C., LIU F., KASSIS M., LYKE J., RIZZI L., CAMPBELL R., GOODRICH R.W. and FABER S.M.
Abstract (from CDS):
We present the Team Keck Redshift Survey 2 (TKRS2), a near-infrared spectral observing program targeting selected galaxies within the CANDELS subsection of the GOODS-North Field. The TKRS2 program exploits the unique capabilities of the Multi-Object Spectrometer For Infra-Red Exploration (MOSFIRE), which entered service on the Keck I telescope in 2012 and contributes substantially to the study of galaxy spectral features at redshifts inaccessible to optical spectrographs. The TKRS2 project targets 97 galaxies drawn from samples that include z ≈ 2 emission-line galaxies with features observable in the JHK bands as well as lower-redshift targets with features in the Y band. We present a detailed measurement of MOSFIRE's sensitivity as a function of wavelength, including the effects of telluric features across the YJHK filters. The largest utility of our survey is in providing rest-frame-optical emission lines for z > 1 galaxies, and we demonstrate that the ratios of strong, optical emission lines of z ≈ 2 galaxies suggest the presence of either higher N/O abundances than are found in z ≈ 0 galaxies or low-metallicity gas ionized by an active galactic nucleus. We have released all TKRS2 data products into the public domain to allow researchers access to representative raw and reduced MOSFIRE spectra.
galaxies: distances and redshifts
VizieR on-line data:
<Available at CDS (J/AJ/150/153): table3.dat>
Table 3: TKRS2 NNNNN N=97 among (Nos 1576-21581).