Galaxy bulges as a research area focuses on the formation, structure, dynamics, and stellar populations of the central spheroidal components of disk galaxies, and their role in galaxy evolution. This field investigates bulge types (classical vs. pseudobulges), scaling relations with supermassive black holes, star formation histories, chemical enrichment, and kinematical properties using photometric decomposition, integral-field spectroscopy, and cosmological simulations. Researchers study how processes such as mergers, secular evolution, bar-driven inflows, and feedback shape bulge mass, morphology, and angular momentum, constraining models of hierarchical structure formation and the co-evolution of bulges and their host dark matter halos.
Astronomers using the James Webb Space Telescope have identified what may be the most distant barred spiral galaxy ever discovered, dating to a time less than 1.2 billion years after the Big Bang. The paper outlining its ...
Researchers using two of humanity's most powerful observatories—NASA's James Webb and Hubble Space Telescopes—have definitively shown that Terzan 5 is not a globular star cluster, as it was once classified, offering new insight ...
Astronomy
Jun 16, 2026
0
66
Astronomers have employed the Multi-Unit Spectroscopic Explorer (MUSE) on the Very Large Telescope (VLT) to perform deep spectroscopic observations of a peculiar spiral galaxy known as W2246f. Results of the observational ...
This NASA Hubble Space Telescope image reveals an enigmatic galaxy with a bright center and a face that hints at spiral structure, yet it holds no obvious spiral arms. Reddish-brown clumps and filaments of dust partially ...
Astronomy
May 18, 2026
0
54
By analyzing the data from the PHANGS-MUSE survey, an international team of astronomers has inspected a nuclear star cluster of the nearby large spiral galaxy Messier 74. The new study presented Dec. 3 on the arXiv pre-print ...
An international team led by the University of Geneva (UNIGE) has discovered the most distant spiral galaxy candidate known to date. This ultra-massive system existed just one billion years after the Big Bang and already ...
Astronomy
Apr 16, 2025
3
128
