Astronomical observations reveal a major deficiency in our understanding of physics—the
detectable mass is insufficient to explain the observed motions in a huge variety of systems …

Disk galaxies evolve over time through processes that may rearrange both the radial mass
profile and the metallicity distribution within the disk. This review of such slow changes is …

ABSTRACT We present Galaxy Zoo DECaLS: detailed visual morphological classifications
for Dark Energy Camera Legacy Survey images of galaxies within the SDSS DR8 footprint …

Abstract We use SDSS+ GALEX+ Galaxy Zoo data to study the quenching of star formation
in low-redshift galaxies. We show that the green valley between the blue cloud of star …

Measuring the morphological parameters of galaxies is a key requirement for studying their
formation and evolution. Surveys such as the Sloan Digital Sky Survey have resulted in the …

We identify stellar structures in the PHANGS sample of 74 nearby galaxies and construct
morphological masks of sub-galactic environments based on Spitzer 3.6 μm images. At the …

We present a morphological catalogue for∼ 670 000 galaxies in the Sloan Digital Sky
Survey in two flavours: T-type, related to the Hubble sequence, and Galaxy Zoo 2 (GZ2 …

We present the data release for Galaxy Zoo 2 (GZ2), a citizen science project with more than
16 million morphological classifications of 304 122 galaxies drawn from the Sloan Digital …

We follow the formation and evolution of bars in N-body simulations of disc galaxies with gas
and/or a triaxial halo. We find that both the relative gas fraction and the halo shape play a …

We explore the chemodynamical properties of a sample of barred galaxies in the Auriga
magnetohydrodynamical cosmological zoom-in simulations, which form boxy/peanut (b/p) …