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Multiwavelength Properties of Miras

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dc.abstract.enWe comprehensively study the variability of Miras in the Large Magellanic Cloud by simultaneously analyzing light curves in 14 bands in the range of 0.5-24 μm. We model over 20 yr long, high-cadence I-band light curves collected by the Optical Gravitational Lensing Experiment (OGLE) and fit them to light curves collected in the remaining optical/near-infrared/mid-infrared bands to derive both the variability amplitude ratio and phase lag as a function of wavelength. We show that the variability amplitude ratio declines with increasing wavelength for both oxygen-rich (O-rich) and carbon-rich (C-rich) Miras, while the variability phase lag increases slightly with increasing wavelength. In a significant number of Miras, mostly the C-rich ones, the spectral energy distributions (SEDs) require the presence of a cool component (dust) in order to match the mid-IR data. Based on SED fits for a golden sample of 140 Miras, we calculated synthetic period-luminosity relations (PLRs) in 42 bands for the existing and future sky surveys that include OGLE, the VISTA Near-Infrared YJK<SUB>s</SUB> Survey of the Magellanic Clouds System, Legacy Survey of Space and Time, Gaia, Spitzer, the Wide-field Infrared Survey Explorer, the James Webb Space Telescope, the Nancy Grace Roman Space Telescope (formerly WFIRST), and the Hubble Space Telescope. We show that the synthetic PLR slope decreases with increasing wavelength for both the O-rich and C-rich Miras in the range of 0.1-40 μm. Finally, we show the location and motions of Miras on the color-magnitude and color-color diagrams.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorIwanek, Patryk
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorGromadzki, Mariusz
dc.contributor.authorSoszyński, Igor
dc.contributor.authorWrona, Marcin
dc.contributor.authorSkowron, Jan
dc.contributor.authorRatajczak, Milena
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorSzymański, Michał
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorUlaczyk, Krzysztof
dc.contributor.authorPoleski, Radosław
dc.contributor.authorMróz, Przemysław
dc.contributor.authorSkowron, Dorota
dc.contributor.authorRybicki, Krzysztof
dc.date.accessioned2024-01-25T13:18:17Z
dc.date.available2024-01-25T13:18:17Z
dc.date.copyright2021-07-07
dc.date.issued2021
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeŚrodki finansowe przyznane na realizację projektu w zakresie badań naukowych lub prac rozwojowych
dc.description.number2
dc.description.versionORIGINAL_AUTHOR
dc.description.volume257
dc.identifier.doi10.3847/1538-4365/AC1797
dc.identifier.issn0067-0049
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113157
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2021ApJS..257...23I
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofAstrophysical Journal, Supplement Series
dc.relation.pages23
dc.rightsCC-BY
dc.sciencecloudnosend
dc.titleMultiwavelength Properties of Miras
dc.typeJournalArticle
dspace.entity.typePublication