SIMBAD references

2021MNRAS.502..818H - Mon. Not. R. Astron. Soc., 502, 818-835 (2021/March-3)

Periods and classifications of RR Lyrae stars in the globular cluster M15.


Abstract (from CDS):

We present measurements of the periods, amplitudes, and types of 74 RR Lyrae stars in the globular cluster M15 derived from Nickel 1 m telescope observations conducted at Lick Observatory in 2019 and 2020. Of these RR Lyrae stars, two were previously reported but without a determination of the period. In addition, we identify five Type II Cepheid variable stars for which we report three novel period determinations, and a further 34 stars with uncertain classifications and periods. We discuss the development and subsequent application to our data of a new PYTHON package, Period-determination and Identification Pipeline Suite (PIPS), based on a new adaptive free-form fitting technique to detect the periods of variable stars with a clear treatment of uncertainties.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): methods: data analysis - techniques: photometric - stars: evolution - stars: variables: RR Lyrae - globular clusters: individual: M15

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

CDS comments: Calibration stars from Table A2 are not in SIMBAD.

Simbad objects: 115

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