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A New Interpretation of the Period-Luminosity Sequences of Long-period Variables

Trabucchi, Michele; Wood, Peter; Montalban, Josefina; Marigo, P; Pastorelli, Giada; Girardi, L

Description

Period–luminosity (PL) sequences of long-period variables (LPVs) are commonly interpreted as different pulsation modes, but there is disagreement on the modal assignment. Here, we re-examine the observed PL sequences in the Large Magellanic Cloud, including the sequence of long secondary periods (LSPs), and their associated pulsation modes. First, we theoretically model the sequences using linear, radial, nonadiabatic pulsation models and a population synthesis model of the LMC red giants....[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/231134
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aa8998

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