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The luminosities of cool supergiants in the Magellanic Clouds, and the Humphreys-Davidson limit revisited
The empirical upper luminosity boundary Lmax of cool supergiants (SGs), often referred to as the Humphreys-Davidson limit, is thought to encode information on the general mass-loss behaviour of… Expand
The initial masses of the red supergiant progenitors to Type II supernovae
There are a growing number of nearby SNe for which the progenitor star is detected in archival pre-explosion imaging. From these images it is possible to measure the progenitor's brightness a few… Expand
Red Supergiants as Cosmic Abundance Probes: massive star clusters in M83, and the mass-metallicity relation of nearby galaxies
We present an abundance analysis of seven super-star clusters in the disk of M83. The near-infrared spectra of these clusters are dominated by Red Supergiants, and the spectral similarity in the… Expand
The evolution of Red Supergiant mass-loss rates
The fate of massive stars with initial masses >8M$_\odot$ depends largely on the mass-loss rate (\mdot ) in the end stages of their lives. Red supergiants (RSGs) are the direct progenitors to Type… Expand
The distances to star clusters hosting Red Supergiants: χ Per, NGC 7419, and Westerlund 1
Galactic, young massive star clusters are approximately coeval aggregates of stars, close enough to resolve the individual stars, massive enough to have produced large numbers of massive stars, and… Expand
A new mass-loss rate prescription for red supergiants
Evolutionary models have shown the substantial effect that strong mass-loss rates (M˙s) can have on the fate of massive stars. Red supergiant (RSG) mass-loss is poorly understood theoretically, and… Expand
The evolution of red supergiants to supernova in NGC 2100
The mass loss rates of red supergiants (RSGs) govern their evolution towards supernova and dictate the appearance of the resulting explosion. To study how mass-loss rates change with evolution we… Expand
A critical re-evaluation of the Thorne–Żytkow object candidate HV 2112
It has been argued in the literature that the star HV 2112 in the Small Magellanic Cloud (SMC) is the first known example of a Thorne–Żytkow object (TŻO), a red supergiant with a degenerate neutron… Expand
Discrepancies in the ages of young star clusters; evidence for mergers?
There is growing evidence that star clusters can no longer be considered simple stellar populations (SSPs). Intermediate and old age clusters are often found to have extended main sequence turn-offs… Expand
On aging star clusters using red supergiants independent of the fraction of interacting binary stars.
We use the Binary Population and Spectral Synthesis (BPASS) models to test the recent suggestion that red supergiants can provide an accurate age estimate of a co-eval stellar population that is… Expand