Distances to PHANGS galaxies: New tip of the red giant branch measurements and adopted distances

Author:

Anand Gagandeep S12ORCID,Lee Janice C1,Van Dyk Schuyler D1ORCID,Leroy Adam K3,Rosolowsky Erik4ORCID,Schinnerer Eva5,Larson Kirsten1,Kourkchi Ehsan2,Kreckel Kathryn6ORCID,Scheuermann Fabian6,Rizzi Luca7,Thilker David8ORCID,Tully R Brent2,Bigiel Frank9,Blanc Guillermo A1011,Boquien Médéric12,Chandar Rupali13,Dale Daniel14,Emsellem Eric1516,Deger Sinan1,Glover Simon C O17ORCID,Grasha Kathryn18ORCID,Groves Brent1819,S. Klessen Ralf1720ORCID,Kruijssen J M Diederik6ORCID,Querejeta Miguel21,Sánchez-Blázquez Patricia22,Schruba Andreas23,Turner Jordan14ORCID,Ubeda Leonardo24,Williams Thomas G5ORCID,Whitmore Brad24

Affiliation:

1. IPAC, California Institute of Technology, Pasadena, CA 91125, USA

2. Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA

3. Department of Astronomy, The Ohio State University, 4055 McPherson Laboratory, 140 West 18th Ave, Columbus, OH 43210, USA

4. Department of Physics, University of Alberta, 4-183 CCIS, Edmonton, Alberta T6G 2E1, Canada

5. Max Planck Institut für Astronomie, K’onigstuhl 17, D-69117 Heidelberg, Germany

6. Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstraße 12-14, D-69120 Heidelberg, Germany

7. W.M. Keck Observatory, 65-1120 Mamalahoa Highway, Kamuela, HI 96743, USA

8. Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218, USA

9. Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, D-53121 Bonn, Germany

10. Observatories of the Carnegie Institution for Science, Pasadena, CA 91101, USA

11. Departamento de Astronomía, Universidad de Chile, Santiago, Chile

12. Centro de Astronomía (CITEVA), Universidad de Antofagasta, Avenida Angamos 601, Antofagasta 1270300, Chile

13. Department of Physics and Astronomy, The University of Toledo, Toledo, OH 43606, USA

14. Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071, USA

15. European Southern Observatory, Karl-Schwarzschild Straße 2, D-85748 Garching bei München, Germany

16. Univ Lyon, Univ Lyon, ENS de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, France

17. Universität Heidelberg, Zentrum für Astronomie, Institut für Theoretische Astrophysik, Albert-Ueberle-Str. 2, D-69120 Heidelberg, Germany

18. Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, ACT 2611, Australia

19. International Centre for Radio Astronomy Research, The University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia

20. Universität Heidelberg, Interdisziplinäres Zentrum für Wissenschaftliches Rechnen, Im Neuenheimer Feld 205, D-69120 Heidelberg, Germany

21. Observatorio Astronómico Nacional (IGN), C/Alfonso XII 3, E-28014 Madrid, Spain

22. Facultad de CC Físicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain

23. Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße 1, D-85748 Garching bei München, Germany

24. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA

Abstract

ABSTRACT PHANGS-HST is an ultraviolet-optical imaging survey of 38 spiral galaxies within ∼20 Mpc. Combined with the PHANGS-ALMA, PHANGS-MUSE surveys and other multiwavelength data, the data set will provide an unprecedented look into the connections between young stars, H ii regions, and cold molecular gas in these nearby star-forming galaxies. Accurate distances are needed to transform measured observables into physical parameters (e.g. brightness to luminosity, angular to physical sizes of molecular clouds, star clusters and associations). PHANGS-HST has obtained parallel ACS imaging of the galaxy haloes in the F606W and F814W bands. Where possible, we use these parallel fields to derive tip of the red giant branch (TRGB) distances to these galaxies. In this paper, we present TRGB distances for 10 PHANGS galaxies from ∼4 to ∼15 Mpc, based on the first year of PHANGS-HST observations. Four of these represent the first published TRGB distance measurements (IC 5332, NGC 2835, NGC 4298, and NGC 4321), and seven of which are the best available distances to these targets. We also provide a compilation of distances for the 118 galaxies in the full PHANGS sample, which have been adopted for the first PHANGS-ALMA public data release.

Funder

National Aeronautics and Space Administration

Ecological Society of Australia Incorporated

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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