The Impact of Observing Strategy on the Reliable Classification of Standard Candle Stars: Detection of Amplitude, Period, and Phase Modulation (Blazhko Effect) of RR Lyrae Stars with LSST

  title={The Impact of Observing Strategy on the Reliable Classification of Standard Candle Stars: Detection of Amplitude, Period, and Phase Modulation (Blazhko Effect) of RR Lyrae Stars with LSST},
  author={Nina Hernitschek and Keivan G. Stassun},
  journal={The Astrophysical Journal Supplement Series},
The Vera C. Rubin Observatory will carry out its Legacy Survey of Space and Time (LSST) with a single-exposure depth of r ∼ 24.7 and an anticipated baseline of 10 yr, allowing access to the Milky Way’s old halo not only deeper than, but also with a longer baseline and better cadence than, e.g., PS1 3π. This will make the LSST ideal to study populations of variable stars such as RR Lyrae stars (RRL). Here, we address the question of observing strategy optimization of LSST, as survey footprint… 

Processing Analytical Queries over Polystore System for a Large Astronomy Data Repository

This study studies the models of data integration, analyze them, and incorporate them into a system to manage linked open data provided by astronomical domain, and proposes a web-based query system built around the Polystore database architecture.

Evaluating the V-band Photometric Metallicity with Fundamental Mode RR Lyrae in the Kepler Field

  • C. Ngeow
  • Physics
    The Astronomical Journal
  • 2022
The aim of this work is to evaluate the performance of photometric metallicity [Fe/H], determined based on V-band light curves photometrically transformed from the gr-band light curves. We tested



The LSST metrics analysis framework (MAF)

The Metrics Analysis Framework is described, an open-source python framework developed to provide a user-friendly, customizable, easily-extensible set of tools for analyzing data sets, and an example of using MAF to evaluate different dithering strategies.

Optimization of the Observing Cadence for the Rubin Observatory Legacy Survey of Space and Time: A Pioneering Process of Community-focused Experimental Design

Vera C. Rubin Observatory is a ground-based astronomical facility under construction, a joint project of the National Science Foundation and the U.S. Department of Energy, designed to conduct a

Impact of Rubin Observatory LSST Template Acquisition Strategies on Early Science from the Transients and Variable Stars Science Collaboration: Time-critical Science Cases

Recommendations for observing strategies for template acquisition starting from commissioning and through Year 1 of the LSST survey are provided, which are still crucial for performing science and calibrations during the first year.

The LSST Scheduler from design to construction

The Large Synoptic Survey Telescope (LSST) will be a highly robotic facility, demanding a very high efficiency during its operation. To achieve this, the LSST Scheduler has been envisioned as an

The LSST operations simulator

The enhanced simulator is being used to assess the feasibility of desired observing cadences, study the impact of changing science program priorities and assist with performance margin investigations of the LSST system.

A Framework for Telescope Schedulers: With Applications to the Large Synoptic Survey Telescope

A generic version of the Feature-based telescope scheduler, which is an automated, decision-making algorithm, with minimal manual tailoring is presented and its potential and flexibility to serve as a foundation for schedulers of the ground-based instruments are demonstrated.

Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1 Sample

RR Lyrae stars may be the best practical tracers of Galactic halo (sub-)structure and kinematics. The PanSTARRS1 (PS1) 3 π survey offers multi-band, multi-epoch, precise photometry across much of the

Fourier decomposition and frequency analysis of the pulsating stars with $P < $ 1 d in the OGLE database - II. Multiperiodic RR Lyrae variables in the Galactic Bulge

We present the results of a systematic search for multiperiodic pulsators among the Galactic Bulge RR Lyrae stars of the OGLE-1 sample. We identify one "canonical" double-mode variable (RRd star)

HEALPix: A Framework for High-Resolution Discretization and Fast Analysis of Data Distributed on the Sphere

This paper considers the requirements and implementation constraints on a framework that simultaneously enables an efficient discretization with associated hierarchical indexation and fast analysis/synthesis of functions defined on the sphere and demonstrates how these are explicitly satisfied by HEALPix.

Template RR Lyrae H alpha, H beta, and H gamma Velocity Curves

We present template radial velocity curves of ab-type RR Lyrae stars constructed from high-precision measurements of Hα, Hβ, and Hγ lines. Amplitude correlations between the Balmer line velocity