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Related papers: High Amplitude \delta-Scutis in the Large Magellan…

200 papers

We present the catalog of RR Lyrae stars discovered in a 4.5 square degrees area in the central parts of the Large Magellanic Cloud (LMC). Presented sample contains 7612 objects, including 5455 fundamental mode pulsators (RRab), 1655…

We have performed a detailed systematic search for multiperiodicity in the Population I Cepheids of the Large Magellanic Cloud. In this process we have identified for the first time several new types of Cepheid pulsational behaviour. We…

Astrophysics · Physics 2009-11-13 P. Moskalik , Z. Kolaczkowski

The Small Magellanic Cloud is increasingly an invaluable laboratory for studying accreting and isolated X-ray pulsars. We add to the class of compact SMC objects by reporting the discovery of three new long period X-ray pulsars detected…

Astrophysics · Physics 2010-05-12 D. J. Macomb , D. W. Fox , R. C. Lamb , T. A. Prince

High-amplitude $\delta$ Scuti stars (HADS) that pulsate in their first three radial modes are rare in current samples. Here, we analyse five such triple-mode HADS observed by the Transiting Exoplanet Survey Satellite (TESS) and {report that…

Solar and Stellar Astrophysics · Physics 2025-05-21 Jia-Shu Niu , Hui-Fang Xue

We present an optical variability study of 44 newly identified blazar candidates behind the Magellanic Clouds, including 27 flat spectrum radio quasars (FSRQs) and 17 BL Lacertae objects (BL Lacs). All objects in the sample possess high…

Astrophysics of Galaxies · Physics 2020-01-29 Natalia Żywucka , Mariusz Tarnopolski , Markus Böttcher , Łukasz Stawarz , Volodymyr Marchenko

We have analysed Optical Gravitational Lensing Experiment photometry for first overtone classical Cepheids in the Large and Small Magellanic Clouds in search for additional periodicities beyond radial modes. We have used standard…

Solar and Stellar Astrophysics · Physics 2022-12-19 R. Smolec , O. Ziółkowska , M. Ochalik , M. Śniegowska

Harmonics are a ubiquitous feature across various pulsating stars. They are traditionally viewed as mere replicas of the independent primary pulsation modes and have thus been excluded from asteroseismological models. Recent research,…

Solar and Stellar Astrophysics · Physics 2024-07-17 Hui-Fang Xue , Jia-Shu Niu

The characteristics of light variation of RSGs in SMC are analyzed based on the nearly 8-10 year long data collected by the ASAS and MACHO projects. The identified 126 RSGs are classified into five categories accordingly: 20 with poor…

Solar and Stellar Astrophysics · Physics 2012-07-06 Ming Yang , B. W. Jiang

In some delta Scuti stars, only one or two radial modes are excited (usually the fundamental mode and/or first overtone mode) and the observed peak-to-peak amplitudes exceed 0.3 mag (V). These stars are known as High Amplitude Delta Scuti…

As shown by Mennickent, et al(2003), a subset of the blue variable stars in the Large Magellanic Cloud exhibit brightness variability of small amplitude in the period range 2.4 to 16 days as well as larger amplitude variability with periods…

Solar and Stellar Astrophysics · Physics 2015-05-13 J. Robert Buchler , Peter R. Wood , R. E. Wilson

Motivated by the detection of a recent outburst of the massive luminous blue variable LMC-R71, which reached an absolute magnitude M_V = -9.3 mag, we undertook a systematic study of the optical variability of 1268 massive stars in the Large…

Solar and Stellar Astrophysics · Physics 2015-03-13 D. M. Szczygiel , K. Z. Stanek , A. Z. Bonanos , G. Pojmanski , B. Pilecki , J. L. Prieto

We present new, accurate positions, spectral classifications, radial and rotational velocities, H-alpha fluxes, equivalent widths and B,V,I,R magnitudes for 579 hot emission-line stars (classes B0 - F9) in the Large Magellanic Cloud which…

Solar and Stellar Astrophysics · Physics 2015-06-05 Warren A. Reid , Quentin A. Parker

We present the largest near-infrared (NIR) data sets, $JHKs$, ever collected for classical Cepheids in the Magellanic Clouds (MCs). We selected fundamental (FU) and first overtone (FO) pulsators, and found 4150 (2571 FU, 1579 FO) Cepheids…

Solar and Stellar Astrophysics · Physics 2013-01-31 L. Inno , N. Matsunaga , G. Bono , F. Caputo , R. Buonanno , K. Genovali , C. D. Laney , M. Marconi , A. M. Piersimoni , F. Primas , M. Romaniello

We present the initial results from an in-depth re-examination of the MACHO project Large Magellanic Cloud database to identify and characterize stellar variability near the intersection of the instability strip and the main sequence. This…

Astrophysics · Physics 2010-12-09 D. Lepischak , D. L. Welch

One hundred and forty six long-period red variable stars in the Large Magellanic Cloud (LMC) from the three year MOA project database were analysed. A careful periodic analysis was performed on these stars and a catalogue of their…

The VISTA survey of the Magellanic Clouds System (VMC) is collecting deep $K_\mathrm{s}$--band time--series photometry of the pulsating variable stars hosted in the system formed by the two Magellanic Clouds and the Bridge connecting them.…

We report the discovery of an extraordinary number of pre-main sequence (PMS) stars in the vicinity of the stellar association LH 95 in the Large Magellanic Cloud (LMC). Using the {\em Advanced Camera for Surveys} on-board the {\em Hubble}…

We report on the latest results of a Parkes multibeam survey for pulsars and dispersed radio bursts in the Large Magellanic Cloud (LMC). We conducted both periodicity and single-pulse searches at a much larger range of trial dispersion…

We present results from a well studied delta Scuti star discovered in the LMC. The absolute magnitude of the variable was determined from the PL relation for Galactic delta Scuti stars and from the theoretical modeling of the observed B,V,I…

Astrophysics · Physics 2008-11-26 D. H. McNamara , G. Clementini , M. Marconi

We report the discovery of a new subclass of double-mode RR Lyrae stars in the Large and Small Magellanic Clouds. The sample of 22 pulsating stars have been extracted from the latest edition of the OGLE collection of RR Lyrae variables in…