92 citations · 351 across the 6 of their papers we have counts for
6 papers
Detailed maps of interstellar clouds in front of omega Centauri: Small-scale structures in the Galactic Disc-Halo interface
Jacco Th. van Loon, Keith T. Smith, Iain McDonald +3
We used the multiplex capabilities of the AAOmega spectrograph at the Anglo-Australian Telescope to create a half-square-degree map of the neutral and low-ionized ISM in front of t…
Giants in the globular cluster omega Centauri: dust production, mass loss and distance
Iain McDonald, Jacco Th. van Loon, Leen Decin +5
We present spectral energy distribution modelling of 6875 stars in omega Centauri, obtaining stellar luminosities and temperatures by fitting literature photometry to state-of-the-…
Spitzer Space Telescope evidence in NGC 6791: no super-mass-loss at super-solar metallicity to explain helium white dwarfs?
Jacco Th. van Loon, Martha L. Boyer, Iain McDonald
We use archival Spitzer Space Telescope photometry of the old, super-solar metallicity massive open cluster NGC 6791 to look for evidence of enhanced mass loss, which has been post…
A Spitzer Space Telescope Atlas of omega Centauri: The Stellar Population, Mass Loss, and the Intracluster Medium
Martha L. Boyer, Iain McDonald, Jacco Th. van Loon +4
We present a Spitzer Space Telescope imaging survey of the most massive Galactic globular cluster, omega Centauri, and investigate stellar mass loss at low metallicity and the intr…
Dust, pulsation, chromospheres and their role in driving mass loss from red giants in Galactic globular clusters
Iain McDonald, Jacco Th. van Loon
Context: Mass loss from red giants in old globular clusters affects the horizontal branch (HB) morphology and post-HB stellar evolution including the production of ultraviolet-brig…
A spectral atlas of post-main-sequence stars in omega Centauri: kinematics, evolution, enrichment and interstellar medium
Jacco Th. van Loon, Floor van Leeuwen, Barry Smalley +4
We present a spectral atlas of the post-main-sequence population of the most massive Galactic globular cluster, omega Centauri. Spectra were obtained of more than 1500 stars select…