VizieR Online Data Catalog: The SSA22 HI tomography survey. I. Redshifts (Mawatari+, 2023)

In this study, we focus on the ~34x27arcmin² region centered LAE density peak, referred to as the SSA22-Sb1 field. We use the following multiband imaging data: Canada-France-Hawaii Telescope/Megacam u'-band image; Subaru/Suprime-Cam B, V, Rc, i', z', NB359 (central wavelength=3596Å and FWHM=152Å), NB497 (λ=4977Å and FWHM=78Å), and NB816 (λ=8150Å and FWHM=118Å) band images; Subaru/Hyper Suprime-Cam (HSC) Y-band image from the Subaru strategic program with HSC (HSC-SSP) in its internal data products (S14A0b) generated from raw data taken in 2014; Subaru/Multi-Objects Infra-Red Camera and Spectrograph (MOIRCS) J-, H-, and Ks -band images; and Spitzer/IRAC 3.6um and 4.5um band images. The entire SSA22-Sb1 field is covered by the above imaging data, except for the MOIRCS and IRAC data.

We performed spectroscopic observations of the targets described above with DEIMOS on the Keck II telescope in 2015 and 2016 using S274D (PI:T.Yamada), U066D (PI:D.Schlegel), S313D (PI:T.Yamada), and S290D (PI:T.Yamada). We were awarded four full nights and 10 half nights in total. Because some nights were lost due to bad weather, the effective observation time corresponded to 41h. We used a 600ZD grating with a slit width of 1", which yielded a spectral resolution of ~4.7Å or resolving power R~1000. We chose the GG400 order blocking filter and set a central wavelength of 6300Å or 6500Å, which provided a wavelength coverage of 4000Å<=λ<=9000Å.

(3 data files).