Kourkchi, Ehsan and Tully, R. Brent and Eftekharzadeh, Sarah and Llop, Jordan and Courtois, Hélène M. and Guinet, Daniel and Dupuy, Alexandra and Neill, James D. and Seibert, Mark and Andrews, Michael and Chuang, Juana and Danesh, Arash and Gonzalez, Randy and Holthaus, Alexandria and Mokelke, Amber and Schoen, Devin and Urasaki, Chase (2020) Cosmicflows-4: The Catalog of ∼10,000 Tully–Fisher Distances. Astrophysical Journal, 902 (2). Art. No. 145. ISSN 1538-4357. doi:10.3847/1538-4357/abb66b. https://resolver.caltech.edu/CaltechAUTHORS:20201027-134314730
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Abstract
We present the distances of 9792 spiral galaxies lying within 15,000 km s⁻¹ using the relation between luminosity and rotation rate of spiral galaxies. The sample is dominantly, but not exclusively, drawn from galaxies detected in the course of the ALFALFA H I survey with the Arecibo Telescope. Relations between H I line widths and luminosity are calibrated at SDSS u, g, r, i, z bands and WISE W1 and W2 bands. By exploiting secondary parameters, particularly color indices, we address discrepancies between measured distances at different wave bands with unprecedented detail. We provide a catalog that includes reduced kinematic, photometric, and inclination parameters. We also describe a machine-learning algorithm, based on the random forest technique, that predicts the dust attenuation in spirals lacking infrared photometry. We determine a Hubble Constant value of H₀ = 75.1 ± 0.2(stat.), with potential systematics up to ±3 km s⁻¹ Mpc⁻¹.
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| Additional Information: | © 2020 The American Astronomical Society. Received 2020 July 10; revised 2020 August 27; accepted 2020 September 1; published 2020 October 23. We are pleased to acknowledge the citizen participation to scientific research of undergraduate students at University of Hawaii, members of the amateur astronomy clubs France Planétarium de Vaulx-en-Velin, Association Clair d'étoiles et Brin d'jardin, Société astronomique de Lyon, Club d'astronomie Lyon Ampère, Club d'astronomie des monts du lyonnais, and Club d'astronomie de Dijon, as well as friends who helped us with measuring inclinations of spiral galaxies in our sample. Support for E. K. and R. B. T. was provided by the NASA Astrophysics Data Analysis Program through grant number 88NSSC18K0424. A. D. acknowledges financial support from the Project IDEXLYON at the University of Lyon under the Investments for the Future Program (ANR-16-IDEX-0005). H. C. acknowledges support from Institut Universitaire de France. This project is partly financially supported by Region Rhone-Alpes-Auvergne. This research has made use of the NASA/IPAC Extragalactic Database, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research made use of Montage, funded by the National Aeronautics and Space Administrations Earth Science Technology Office, Computational Technologies Project, under Cooperative Agreement Number NCC5-626 between NASA and the California Institute of Technology. The code is maintained by the NASA/IPAC Infrared Science Archive. The Pan-STARRS1 Surveys (PS1) and the PS1 public science archive have been made possible through contributions by the Institute for Astronomy, the University of Hawaii, the Pan-STARRS Project Office, the Max Planck Society and its participating institutes, the Max Planck Institute for Astronomy, Heidelberg and the Max Planck Institute for Extraterrestrial Physics, Garching, The Johns Hopkins University, Durham University, the University of Edinburgh, the Queen's University Belfast, the Harvard–Smithsonian Center for Astrophysics, the Las Cumbres Observatory Global Telescope Network Incorporated, the National Central University of Taiwan, the Space Telescope Science Institute, the National Aeronautics and Space Administration under grant No. NNX08AR22G issued through the Planetary Science Division of the NASA Science Mission Directorate, the National Science Foundation grant No. AST-1238877, the University of Maryland, Eotvos Lorand University (ELTE), Los Alamos National Laboratory, and the Gordon and Betty Moore Foundation. | ||||||||||||||||||||||||||
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| Subject Keywords: | Galaxy distances ; Spiral galaxies ; Galaxy photometry ; Hubble constant ; H I line emission ; Large-scale structure of the universe ; Inclination ; Sky surveys ; Catalogs ; Distance measure ; Random Forests | ||||||||||||||||||||||||||
| Issue or Number: | 2 | ||||||||||||||||||||||||||
| Classification Code: | Unified Astronomy Thesaurus concepts: Galaxy distances (590); Spiral galaxies (1560); Galaxy photometry (611); Hubble constant (758); H I line emission (690); Large-scale structure of the universe (902); Inclination (780); Sky surveys (1464) | ||||||||||||||||||||||||||
| DOI: | 10.3847/1538-4357/abb66b | ||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20201027-134314730 | ||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20201027-134314730 | ||||||||||||||||||||||||||
| Official Citation: | Ehsan Kourkchi et al 2020 ApJ 902 145 | ||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||
| ID Code: | 106304 | ||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||||||||
| Deposited On: | 27 Oct 2020 20:57 | ||||||||||||||||||||||||||
| Last Modified: | 16 Nov 2021 18:52 |
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