TY - JOUR
T1 - Distances to PHANGS galaxies
T2 - New tip of the red giant branch measurements and adopted distances
AU - Anand, Gagandeep S.
AU - Lee, Janice C.
AU - Van Dyk, Schuyler D.
AU - Leroy, Adam K.
AU - Rosolowsky, Erik
AU - Schinnerer, Eva
AU - Larson, Kirsten
AU - Kourkchi, Ehsan
AU - Kreckel, Kathryn
AU - Scheuermann, Fabian
AU - Rizzi, Luca
AU - Thilker, David
AU - Brent Tully, R.
AU - Bigiel, Frank
AU - Blanc, Guillermo A.
AU - Boquien, Médéric
AU - Chandar, Rupali
AU - Dale, Daniel
AU - Emsellem, Eric
AU - Deger, Sinan
AU - Glover, Simon C.O.
AU - Grasha, Kathryn
AU - Groves, Brent
AU - Klessen, Ralf S.
AU - Kruijssen, J. M.Diederik
AU - Querejeta, Miguel
AU - Sánchez-Blázquez, Patricia
AU - Schruba, Andreas
AU - Turner, Jordan
AU - Ubeda, Leonardo
AU - Williams, Thomas G.
AU - Whitmore, Brad
PY - 2021/3/1
Y1 - 2021/3/1
N2 - 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.
AB - 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.
KW - distance scale
KW - galaxies: Fundamental parameters
KW - galaxies: Stellar content
UR - http://www.scopus.com/inward/record.url?scp=85100305407&partnerID=8YFLogxK
U2 - 10.1093/mnras/staa3668
DO - 10.1093/mnras/staa3668
M3 - Article
AN - SCOPUS:85100305407
SN - 0035-8711
VL - 501
SP - 3621
EP - 3639
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -