Evidence for a fundamental stellar upper mass limit from clustered star formation
The observed masses of the most massive stars do not surpass about 150 Msolar. This may either be a fundamental upper mass limit which is defined by the physics...
Evidence for a high-z ISW signal from supervoids in the distribution of eBOSS quasars
The late-time integrated Sachs-Wolfe (ISW) imprint of $R\gtrsim 100~h^{-1}\, \mathrm{Mpc}$ superstructures is sourced by evolving large-scale potentials due to...
Evidence for a jet contribution to the optical/infrared light of neutron star X-ray binaries
Optical/near-infrared (optical/NIR, OIR) light from low-mass neutron star X-ray binaries (NSXBs) in outburst is traditionally thought to be thermal emission...
Evidence for a large stellar bar in the Low Surface Brightness galaxy UGC 7321
Late-type spiral galaxies are thought to be the dynamically simplest type of disk galaxy and our understanding of their properties plays a key role in galaxy...
Evidence for a metal-poor population in the inner Galactic bulge
The inner Galactic bulge has, until recently, been avoided in chemical evolution studies because of extreme extinction and stellar crowding. Large, near-IR...
Evidence for a New Elliptical-Galaxy Paradigm: Sérsic and Core Galaxies
We fitted the surface-brightness profiles of 21 elliptical galaxies using both the Sérsic function and a new empirical model that combines an inner power law...
Evidence for a Physically Associated Companion Galaxy to I ZW 18
Using the William Herschel Telescope ISIS spectrograph, deep long-slit spectra were obtained of the ionized gas across the blue compact dwarf galaxy I Zw 18 and...