249 citations · 3.4k across the 56 of their papers we have counts for
56 papers
Canada and the SKA from 2020-2030
Kristine Spekkens, Cynthia Chiang, Roland Kothes +57
This white paper submitted for the 2020 Canadian Long-Range Planning process (LRP2020) presents the prospects for Canada and the Square Kilometre Array (SKA) from 2020-2030, focuss…
Gemini Infrared Multi-Object Spectrograph: Instrument Overview
Suresh Sivanandam, Scott Chapman, Luc Simard +27
The Gemini Infrared Multi-Object Spectrograph (GIRMOS) is a powerful new instrument being built to facility-class standards for the Gemini telescope. It takes advantage of the late…
Comparing the White Dwarf Cooling Sequences in 47 Tuc and NGC 6397
Harvey B. Richer, Ryan Goldsbury, Jeremy Heyl +7
Using deep Hubble Space Telescope imaging, color-magnitude diagrams are constructed for the globular clusters 47 Tuc and NGC 6397. As expected, because of its lower metal abundance…
An Age Difference of 2 Gyr between a Metal-Rich and a Metal-Poor Globular Cluster
B. M. S. Hansen, J. S. Kalirai, J. Anderson +9
Globular clusters trace the formation history of the spheroidal components of both our Galaxy and others, which represent the bulk of star formation over the history of the univers…
A Dynamical Signature of Multiple Stellar Populations in 47 Tucanae
Harvey B. Richer, Jeremy Heyl, Jay Anderson +5
Based on the width of its main sequence, and an actual observed split when viewed through particular filters, it is widely accepted that 47 Tucanae contains multiple stellar popula…
Ultra-Deep Hubble Space Telescope Imaging of the Small Magellanic Cloud: The Initial Mass Function of Stars with M <~ 1 Msun
Jason S. Kalirai, Jay Anderson, Aaron Dotter +7
We present a new measurement of the stellar initial mass function (IMF) based on ultra-deep, high-resolution photometry of >5,000 stars in the outskirts of the Small Magellanic Clo…