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The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. VI. Delta Scuti Stars in the Large Magellanic Cloud

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arxiv 1004.0950 v1 pith:WESPAZNV submitted 2010-04-06 astro-ph.SR

R. Poleski , I. Soszyński , A. Udalski , M.K. Szymański , M. Kubiak , G. Pietrzyński , {L}. Wyrzykowski , O. Szewczyk
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K. Ulaczyk
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classification astro-ph.SR
keywords starsvariabledeltafirstmodepulsatorscatalogcloud
verification ladder T0 review T1 audit T2 compute T3 formal
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The sixth part of the OGLE-III catalog of Variable Stars presents \delta Sct pulsators in the Large Magellanic Cloud. Altogether 2786 variable stars were found and amongst them 92 are multi-mode objects, including 67 stars pulsating in the fundamental mode and the first overtone (F/1O), nine double-mode pulsators with various combinations of the first three overtones excited (1O/2O, 2O/3O and 1O/3O pulsators), and two triple mode (F/1O/2O) \delta Sct stars. In total 1490 of stars are marked as uncertain, due to scattered photometry and small amplitudes. For single-mode objects it was not possible to unambiguously identify pulsation mode, however we suggest the most of the single-mode variable stars pulsate in the first overtone.

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  1. The Gaia parallax discrepancy for the cluster Pismis 19, and separating $\delta$ Scutis from Cepheids

    astro-ph.SR 2025-02 conditional novelty 4.0 of 10

    A new red clump distance to Pismis 19 (2.90 ± 0.15 kpc) supports a Gaia parallax zero-point offset, and the 0.292-day variable OGLE GD-CEP-1864 is reclassified as a delta Scuti.

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