57 citations · 378 across the 16 of their papers we have counts for
16 papers
Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud V: Multiple Populations in ancient Globular Clusters
Christina K. Gilligan, Brian Chaboyer, Jeffrey D. Cummings +9
We examine four ancient Large Magellanic Cloud (LMC) globular clusters (GCs) for evidence of multiple stellar populations using the Advanced Camera for Surveys and Wide Field Camer…
Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud IV: Evidence for Multiple Populations in Hodge 11 and NGC 2210
Christina K. Gilligan, Brian Chaboyer, Jeffrey D. Cummings +10
We present a multiple population search in two old Large Magellanic Cloud (LMC) Globular Clusters, Hodge 11 and NGC 2210. This work uses data from the Advanced Camera for Surveys a…
Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud: III. Horizontal Branch Morphology
R. Wagner-Kaiser, Dougal Mackey, Ata Sarajedini +5
We leverage new high-quality data from Hubble Space Telescope program GO-14164 to explore the variation in horizontal branch morphology among globular clusters in the Large Magella…
Exploring the nature and synchronicity of early cluster formation in the Large Magellanic Cloud: II. Relative ages and distances for six ancient globular clusters
R. Wagner-Kaiser, Dougal Mackey, Ata Sarajedini +6
We analyze Hubble Space Telescope observations of six globular clusters in the Large Magellanic Cloud from program GO-14164 in Cycle 23. These are the deepest available observation…
The ACS Survey of Galactic Globular Clusters XIV: Bayesian Single-Population Analysis of 69 Globular Clusters
R. Wagner-Kaiser, A. Sarajedini, T. von Hippel +7
We use Hubble Space Telescope (HST) imaging from the ACS Treasury Survey to determine fits for single population isochrones of 69 Galactic globular clusters. Using robust Bayesian…
The Properties of the Magellanic Bridge Based on OGLE IV RR Lyrae Variables
R. Wagner-Kaiser, Ata Sarajedini
We examine the properties of the Magellanic Bridge connecting the Large and Small Magellanic Clouds using ab-type RR Lyrae variables from the extensive dataset of the Optical Gravi…
Bayesian Analysis of Two Stellar Populations in Galactic Globular Clusters III: Analysis of 30 Clusters
R. Wagner-Kaiser, D. C. Stenning, A. Sarajedini +5
We use Cycle 21 Hubble Space Telescope (HST) observations and HST archival ACS Treasury observations of 30 Galactic Globular Clusters to characterize two distinct stellar populatio…
Bayesian Analysis of Two Stellar Populations in Galactic Globular Clusters I: Statistical and Computational Methods
D. C. Stenning, R. Wagner-Kaiser, E. Robinson +4
We develop a Bayesian model for globular clusters composed of multiple stellar populations, extending earlier statistical models for open clusters composed of simple (single) stell…
Bayesian Analysis of Two Stellar Populations in Galactic Globular Clusters II: NGC 5024, NGC 5272, and NGC 6352
R. Wagner-Kaiser, D. C. Stenning, E. Robinson +5
We use Cycle 21 Hubble Space Telescope (HST) observations and HST archival ACS Treasury observations of Galactic Globular Clusters to find and characterize two stellar populations…
Large Magellanic Cloud Near-Infrared Synoptic Survey. II. The Wesenheit relations and their application to the Distance scale
Anupam Bhardwaj, Shashi M. Kanbur, Lucas M. Macri +4
We present new near-infrared Cepheid Period-Wesenheit relations in the LMC using time-series observations from the Large Magellanic Cloud Near-Infrared Synoptic Survey. We also der…
Panchromatic Hubble Andromeda Treasury XIII: The Cepheid period-luminosity relation in M31
R. Wagner-Kaiser, A. Sarajedini, J. J. Dalcanton +2
Using Hubble Space Telescope Advanced Camera for Surveys (HST/ACS) and Wide Field Camera 3 (WFC3) observations from the Panchromatic Hubble Andromeda Treasury (PHAT), we present ne…
Bayesian Analysis for Stellar Evolution with Nine Parameters (BASE-9): User's Manual
Ted von Hippel, Elliot Robinson, Elizabeth Jeffery +6
BASE-9 is a Bayesian software suite that recovers star cluster and stellar parameters from photometry. BASE-9 is useful for analyzing single-age, single-metallicity star clusters,…
The Void in the Sculptor Group Spiral Galaxy NGC 247
R. Wagner-Kaiser, T. Demaio, A. Sarajedini +1
The dwarf galaxy NGC 247, located in the Sculptor Filament, displays an apparent void on the north side of its spiral disk. The existence of the void in the disk of this dwarf gala…
The Early Chemical Enrichment Histories of Two Sculptor Group Dwarf Galaxies as Revealed by RR Lyrae Variables
Soung-Chul Yang, Rachel Wagner-Kaiser, Ata Sarajedini +2
We present the results of our analysis of the RR Lyrae (RRL) variable stars detected in two transition-type dwarf galaxies (dTrans), ESO294-G010 and ESO410-G005 in the Sculptor gro…
The Properties of the Large Magellanic Cloud Based on OGLE III Photometry of RR Lyrae Stars
Rachel Wagner-Kaiser, Ata Sarajedini
We present results from a study of ab-type RR Lyrae variables in the Large Magellanic Cloud using the extensive dataset from phase III of the Optical Gravitational Lensing Experime…
Identifying Contributions to the Stellar Halo from Accreted, Kicked-Out, and In Situ Populations
Allyson A. Sheffield, Steven R. Majewski, Kathryn V. Johnston +10
[Abridged] We present a medium-resolution spectroscopic survey of late-type giant stars at mid-Galactic latitudes of (30), designed to probe the properties…