Published July 22, 2020 | Version 1.0
Dataset Open

KBSS Data: structure and kinematics of circumgalactic H I

  • 1. ROR icon California Institute of Technology
  • 2. The Observatories of Carnegie Institute of Science
  • 3. UCSD
  • 4. ROR icon Franklin & Marshall College
  • 5. NYU Abu Dhabi
  • 6. ROR icon University of Wisconsin–Milwaukee
  • 7. ROR icon University of Cambridge
  • 8. UCR
  • 9. UCLA
  • 10. ROR icon Northwestern University

Citation

Chen, Y., Steidel, C., Hummels, C., Rudie, G., Dong, B., Trainor, R., Bogosavljevic, M., Erb, D., Pettini, M., Reddy, N., Shapley, A., Strom, A., Theios, R., Faucher-Giguere, C.-A., & Keres, D. (2020). KBSS Data: structure and kinematics of circumgalactic H I (1.0) [Data set]. CaltechDATA. https://doi.org/10.22002/D1.1458

Description

This tarball collects the processed data that are included in Y. Chen et al, 2020, "The Keck Baryonic Structure Survey: Using foreground/background galaxy pairs to trace the structure and kinematics of circumgalactic neutral hydrogen at z~2". Here is how this file is organised. cats - KBSS catalogs as of Jan 2019, organized as FITS tables. This can be slightly different to the most recent KBSS catalog released at http://ramekin.caltech.edu/KBSS. lya_spec - The stacked spectra near Lya for the KGPS-Full and KGPS- zneb samples. Wavelengths are included as FITS-WCS in the header. The weight spectra are 1/sigma^2, estimated from bootstrap. These files are used to make Figure 5, and subsequently the 2D optical depth maps. wlya - Lya equivalent width as a function of impact parameter, stored as FITS tables. The table entries are, [dtran] - impact parameter; [dtran_lo] - lower edge of the "dtran" bins; [dtran_hi] - higher edge of the "dtran" bins; [ew] - Lya equivalent width; [ew_lo] - the lower 1-sigma limit of "ew"; [ew_hi] - the higher 1-sigma limit of "ew". These data are used to make Figure 6. tau_2d - 2D absorption maps, stored as multi-extension FITS files. [ext 0] - apparent optical depth; [ext 1] - 1-sigma error of ext 1; [ext 2] - dtran and vlos grids of ext 1 and 2. These are used to make Figures 7, 8, 9, 13, 14, 16, 17, 18. model - Best-fit model of the 2D absorption map, in multi-extension FITS. [ext 0] - modeled apparent optical depth; [ext 1] - grid. These are used to make Figure 13.

Files

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Additional details

Created:
September 8, 2022
Modified:
November 18, 2022