Probing the IGM/Galaxy Connection IV: The LCO/WFCCD Galaxy Survey of 20 Fields Surrounding UV Bright Quasars
作者： J. Xavier Prochaska , J. S. Mulchaey , B. Weiner , K. L. Cooksey , H. W. Chen
DOI: 10.1088/0067-0049/193/2/28
关键词: Dwarf galaxy 、 Magnitude (astronomy) 、 Photometry (optics) 、 Astronomy 、 Galaxy 、 Astrophysics 、 Quasar 、 Telescope 、 Spectrograph 、 Redshift 、 Physics
摘要: We publish the survey for galaxies in 20 fields containing ultraviolet bright quasars (with z_em 0.1 to 0.5) that can be used study association between and absorption systems from low-z intergalactic medium (IGM). The is magnitude limited (R~19.5 mag) highly complete out 10' quasar each field. It was designed detect dwarf (L ~ L*) at an impact parameter rho 1Mpc (z=0.1) a quasar. sample (all fields) includes R-band photometry 84718 sources confirmed redshifts 2800 sources. This 1198 with 0.005 < z (z_em - 0.01) median redshift of 0.18, which may associated IGM lines. All imaging acquired cameras on Swope 40" telescope spectra were obtained via slitmask observations using WFCCD spectrograph Dupont 100" Las Campanas Observatory (LCO). paper describes data reduction, analysis, photometry, spectral analysis survey. tabulate principal measurements all field provide spectroscopic dataset online.
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