2019/07/29 by Yu Rong, Thomas H. Puzia, Paul Eigenthaler +23
Physics and Astronomy · #Astronomy and Astrophysical Research #Brown dwarf #Cluster (spacecraft) #Dwarf galaxy #Dwarf spheroidal galaxy #Fornax Cluster #Galaxies: Formation, Evolution, Phenomena #Galaxy #SIGNAL (programming language) #Stars #Stellar, planetary, and galactic studies #astro-ph.GA
paper · pdf · doi:10.3847/1538-4357/ab3725
7 pages, 4 figures, 1 table; accepted by ApJ
arxiv created 2019/07/29 · openalex created_date 2019/08/13 · openalex publication_date 2019/09/19 · arxiv updated 2019/09/25 · openalex updated_date 2026/08/05
Abstract Using the photometric data from the Next Generation Fornax Survey, we find a significant radial alignment signal among the Fornax dwarf galaxies. For the first time, we report that the radial alignment signal of nucleated dwarfs is stronger than that of non-nucleated ones at the 2.4 σ confidence level, and the dwarfs located in the outer region ( R > R vir /3; R vir is the Fornax virial radius) show a slightly stronger radial alignment signal than those in the inner region ( R < R vir /3) at the 1.5 σ level. We also find that the significance of the radial alignment signal is independent of the luminosities or sizes of the dwarfs.