Using ultra-deep imaging (μg = 30.4 mag arcsec-2; 3σ, 10″ × 10″), we probed the surroundings of the first galaxy "lacking" dark matter (DM) KKS2000[04] (NGC...
-
PublicaciónA Disk and No Signatures of Tidal Distortion in the Galaxy "Lacking" Dark Matter NGC 1052-DF2
-
PublicaciónA Shallow Dark Matter Halo in Ultra-diffuse Galaxy AGC 242019: Are UDGs Structurally Similar to Low-surface-brightness Galaxies?
A central question regarding ultra-diffuse galaxies (UDGs) is whether they are in a separate category from low-surface-brightness (LSB) galaxies, or just their...
-
PublicaciónCan Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?
According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central...
-
NoticiaDescubierto el mecanismo que elimina la materia oscura de las galaxias
La escasez de materia oscura en la galaxia NGC1052-DF4 ha desconcertado durante varios años a la comunidad astronómica. Ahora, un equipo de investigadores del...
-
PublicaciónFlares, Warps, Truncations, and Satellite: The Ultra-thin Galaxy UGC 11859
The structure of the outskirts of galaxies provides valuable information about their past and evolution. Due to their projected orientation, edge-on isolated...
-
PublicaciónShadows in the Dark: Low-surface-brightness Galaxies Discovered in the Dark Energy Survey
We present a catalog of 23,790 extended low-surface-brightness galaxies (LSBGs) identified in $\sim 5000\,{\deg }^{2}$ from the first three years of imaging...
-
PublicaciónThe Importance of Having an Extended Point-spread Function in Low Surface-brightness Science
Obtaining and characterizing the extended point-spread function (PSF) is essential to extract accurate photometric information from deep imaging surveys. In...
-
PublicaciónThe Undiscovered Ultradiffuse Galaxies of the Local Group
Ultradiffuse galaxies (UDGs) are attractive candidates to probe cosmological models and test theories of galaxy formation at low masses; however, they are...
-
PublicaciónYoung, Blue, and Isolated Stellar Systems in the Virgo Cluster. I. 2D Optical Spectroscopy
We use panoramic optical spectroscopy obtained with the Very Large Telescope/MUSE to investigate the nature of five candidate extremely isolated low-mass star...