1k citations · 22.8k across the 263 of their papers we have counts for
8 papers · 2 filters
The Neutral Hydrogen Properties of Galaxies in Gas-rich Groups
Robert Džudžar, Virginia Kilborn, Gerhardt Meurer +23
We present an analysis of the integrated neutral hydrogen (HI) properties for 27 galaxies within nine low mass, gas-rich, late-type dominated groups which we denote "Choirs". We fi…
The GALAH survey and Gaia DR2: dissecting the stellar disc's phase space by age, action, chemistry and location
Joss Bland-Hawthorn, Sanjib Sharma, Thor Tepper-Garcia +24
We use the second data releases of the ESA Gaia astrometric survey and the high-resolution GALAH spectroscopic survey to analyse the structure of our Galaxy's disc components. With…
The GALAH Survey and Gaia DR2: (Non)existence of five sparse high-latitude open clusters
Janez Kos, Gayandhi de Silva, Joss Bland-Hawthorn +21
Sparse open clusters can be found at high galactic latitudes where loosely populated clusters are more easily detected against the lower stellar background. Because most star forma…
The GALAH Survey: Stellar streams and how stellar velocity distributions vary with Galactic longitude, hemisphere and metallicity
Alice C. Quillen, Gayandhi De Silva, Sanjib Sharma +30
Using GALAH survey data of nearby stars, we look at how structure in the planar (u,v) velocity distribution depends on metallicity and on viewing direction within the Galaxy. In ne…
The GALAH survey: Co-orbiting stars and chemical tagging
Jeffrey D. Simpson, Sarah L. Martell, Gary Da Costa +24
We present a study using the second data release of the GALAH survey of stellar parameters and elemental abundances of 15 pairs of stars identified by Oh et al 2017. They identifie…
The Origin of the Milky Way's Halo Age Distribution
Daniela Carollo, Patricia B. Tissera, Timothy C. Beers +4
We present an analysis of the radial age gradients for the stellar halos of five Milky Way mass-sized systems simulated as part of the Aquarius Project. The halos show a diversity…
The GALAH survey: properties of the Galactic disk(s) in the solar neighbourhood
L. Duong, K. C. Freeman, M. Asplund +26
Using data from the GALAH pilot survey, we determine properties of the Galactic thin and thick disks near the solar neighbourhood. The data cover a small range of Galactocentric ra…
Resolving the Disc-Halo Degeneracy I: A Look at NGC 628
S. Aniyan, K. C. Freeman, M. Arnaboldi +6
The decomposition of the rotation curve of galaxies into contribution from the disc and dark halo remains uncertain and depends on the adopted mass to light ratio (M/L) of the disc…