Distance to the Dorado galaxy group
arXiv:2009.04090 · doi:10.1134/S199034132004015X
Abstract
Based on the archival images of the Hubble Space Telescope, stellar photometry of the brightest galaxies of the Dorado group: NGC 1433, NGC 1533, NGC 1566 and NGC 1672 was carried out. Red giants were found on the obtained CM diagrams and distances to the galaxies were measured using the TRGB method. The obtained values: , , and ~Mpc, show that all the named galaxies are located approximately at the same distances and form a scattered group with an average distance Mpc. It was found that blue and red supergiants are visible in the hydrogen arm between the galaxies NGC 1533 and IC 2038, and form a ring structure in the lenticular galaxy NGC 1533, at a distance of 3.6 kpc from the center. The high metallicity of these stars () indicates their origin from NGC 1533 gas.
arXiv comment14 pages, 10 figures, accepted to Astrophysical Bulletin; typos corrected
References in corpus (14)
- Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
- The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances
- Cosmicflows-2: The Data
- Homogeneous Velocity-Distance Data for Peculiar Velocity Analysis. III. The Mark III Catalog of Galaxy Peculiar Velocities
- The 6dF Galaxy Survey: Peculiar Velocity Field and Cosmography
- From Spitzer Galaxy Photometry to Tully-Fisher Distances
- The resolved stellar populations in the LEGUS galaxies
- Intergalactic HII Regions Discovered in SINGG
- Outlying HII Regions in HI-Selected Galaxies
- Tracing the outer halo in a giant elliptical to 25 Reff
- Kinematics, Substructure and Luminosity-weighted Dynamics of Six Nearby Galaxy Groups
- Isolated OB Associations in Stripped HI Gas Clouds
- VEGAS: a VST Early-type GAlaxy Survey. IV. NGC 1533, IC 2038 and IC 2039: an interacting triplet in the Dorado group
- The Dwarf Galaxy Population of the Dorado group down to Mv=-11