We review and discuss horizontal branch (HB) stars in a broad astrophysical context,
including both variable and non-variable stars. A reassessment of the Oosterhoff dichotomy …

Studies of stellar populations, understood to mean collections of stars with common spatial,
kinematic, chemical, and/or age distributions, have been reinvigorated during the past …

We report on the results from the first six months of the Catalina Real-Time Transient Survey
(CRTS). In order to search for optical transients (OTs) with timescales of minutes to years …

We present a new N-body model for the tidal disruption of the Sagittarius (Sgr) dwarf that is
capable of simultaneously satisfying the majority of angular position, distance, and radial …

Relying on the dramatic increase in the number of stars with full 6D phase-space information
provided by the Gaia Data Release 3, we resolve the distribution of the stellar halo around …

Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1
Sample - IOPscience This site uses cookies. By continuing to use this site you agree to our use …

We present analysis of 12,227 type-ab RR Lyraes (RRLs) found among the 200 million
public light curves in Catalina Surveys Data Release 1. These stars span the largest volume …

We have analyzed a sample of 27,258 fundamental-mode RR Lyrae variable stars (type
RRab) detected recently toward the Galactic bulge by the Optical Gravitational Lensing …

We present an analysis of the substructure revealed by RR Lyraes in Sloan Digital Sky
Survey Stripe 82, which covers in declination on the celestial equator over the right …

We present an improved analysis of halo substructure traced by RR Lyrae stars in the Sloan
Digital Sky Survey (SDSS) stripe 82 region. With the addition of SDSS-II data, a revised …