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In this paper, we derive the period-luminosity (P-L) relation for Large Magellanic Cloud (LMC) Cepheids based on mid-infrared AKARI observations. AKARI's IRC sources were matched to the OGLE-III LMC Cepheid catalog. Together with the…

Solar and Stellar Astrophysics · Physics 2015-05-19 Chow-Choong Ngeow , Yoshifusa Ita , Shashi M. Kanbur , Hilding Neilson , Takashi Onaka , Daisuke Kato

We present an analysis of the theoretical and observed light curve parameters of the fundamental mode (FU) classical Cepheids in the Magellanic Clouds in $V$- and $I$- photometric bands. The state-of-the-art 1D non-linear radial stellar…

Solar and Stellar Astrophysics · Physics 2023-03-29 Kerdaris Kurbah , Sukanta Deb , Shashi M. Kanbur , Susmita Das , Mami Deka , Anupam Bhardwaj , Hugh Riley Randall , Selim Kalici

The structural parameters, like the inclination, i and the position angle of the line of nodes (PA_lon) of the disk of the Large Magellanic Cloud (LMC) are estimated using the JH photometric data of red clump stars from the Infrared Survey…

Astrophysics of Galaxies · Physics 2015-06-12 Smitha Subramanian , Annapurni Subramaniam

(abridged) Recent studies, using OGLE data for LMC Cepheids in the optical, strongly suggest that the period-luminosity (PL) relation for the Large Magellanic Cloud (LMC) Cepheids shows a break or non-linearity at a period of 10 days. In…

Astrophysics · Physics 2009-04-13 C. Ngeow , S. Kanbur , S. Nikolaev , J. Buonaccorsi , K. Cook , D. Welch

We present results from the Large Magellanic Cloud Near-infrared Synoptic Survey (LMCNISS) for classical and type II Cepheid variables that were identified by the Optical Gravitational Lensing Experiment (OGLE-III) catalogue.…

Solar and Stellar Astrophysics · Physics 2019-09-04 A. Bhardwaj , L. M. Macri , S. M. Kanbur , C. -C. Ngeow , H. P. Singh

We present a detailed analysis of Magellanic Bridge Cepheid sample constructed using the OGLE Collection of Variable Stars. Our updated Bridge sample contains 10 classical and 13 anomalous Cepheids. We calculate their individual distances…

We present the results of a theoretical investigation aimed at testing whether full amplitude, nonlinear, convective models account for the I-band light curves of Bump Cepheids in the Large Magellanic Cloud (LMC). We selected two objects…

Astrophysics · Physics 2009-11-07 G. Bono , V. Castellani , M. Marconi

We present phase-corrected photometric measurements of 88 Cepheid variables in the core of the Small Magellanic Cloud (SMC), the first sample obtained with the Hubble Space Telescope's (HST) Wide Field Camera 3, in the same homogeneous…

The detailed study of the Galactic bulge stellar population necessarily requires an accurate representation of the interstellar extinction particularly toward the Galactic plane and center, where the severe and differential reddening is…

Astrophysics of Galaxies · Physics 2021-01-04 F. Surot , E. Valenti , O. A. Gonzalez , M. Zoccali , E. Sökmen , S. L. Hidalgo , D. Minniti

Precise interstellar dust extinction laws are important to infer the intrinsic properties of reddened objects and correctly interpret observations. In this work, we attempt to measure the optical--infrared extinction laws of the Large and…

Astrophysics of Galaxies · Physics 2023-04-05 Shu Wang , Xiaodian Chen

Aims. This study aims to determine empirical intrinsic edges of the classical Cepheids instability strip (IS) in the Small Magellanic Cloud (SMC) galaxy, considering various effects that alter its shape, and compare them with theoretical…

Solar and Stellar Astrophysics · Physics 2026-02-04 Felipe Espinoza-Arancibia , Bogumił Pilecki , Matylda Łukaszewicz

We recover the spatially resolved star formation history across the entire main body and Wing of the Small Magellanic Cloud (SMC), using fourteen deep tile images from the VISTA survey of the Magellanic Clouds (VMC), in the YJKs filters.…

The Large and Small Magellanic Clouds (LMC and SMC) are the Milky Way's nearest interacting galaxy pair, offering a unique laboratory for studying tidal effects on galactic disks. Despite extensive survey efforts, the three-dimensional…

We present new near-IR light curves for six Cepheids in the young blue LMC cluster NGC1866 as well as high precision radial velocity curves for ten Cepheids in NGC1866 and two in NGC2031. For the six Cepheids in NGC1866 with new J and K…

Astrophysics · Physics 2009-11-11 Jesper Storm , Wolfgang P. Gieren , Pascal Fouque , Thomas G. Barnes , Matias Gomez

Integrated spectroscopy of a sample of 17 blue concentrated Large Magellanic Cloud (LMC) clusters is presented and its spectral evolution studied. The spectra span the range ~3600-6800A with a resolution of ~14A FWHM, being used to…

Astrophysics · Physics 2009-11-11 J. F. C. Santos , J. J. Claria , A. V. Ahumada , E. Bica , A. E. Piatti , M. C. Parisi

We present a quantitative analysis of the SFH of 12 fields in the SMC. We find that there are four main periods of enhancement of star formation: a young one peaked at around 0.2-0.5 Gyr old, only present in the eastern and in the…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Noelia E. D. Noel , Antonio Aparicio , Carme Gallart , Sebastian L. Hidalgo , Edgardo Costa , Rene A. Mendez

We present new accurate Period-Luminosity (PL) and Period-Wesenheit (PW) relations in the V,J,Ks bands based on a sample of more than 4500 Cepheids in the Large Magellanic Cloud (LMC) whose photometry was obtained in the context of the…

Solar and Stellar Astrophysics · Physics 2020-03-02 V. Ripepi , R. Molinaro , M. Marconi , M. -R. L. Cioni

In this paper we analyze the behavior of Galactic, LMC and SMC Cepheids in terms of period-color (PC) and amplitude-color (AC) diagrams at the phases of maximum, mean and minimum light. We find very different behavior between Galactic and…

Astrophysics · Physics 2016-08-30 S. Kanbur , C. Ngeow

Estimating metallicity of classical Cepheids is of prime importance for studying metallicity effect on stellar evolution, chemical evolution of galaxies, and ultimately its impact on period-luminosity relation used in the extragalactic…

Solar and Stellar Astrophysics · Physics 2023-03-22 V. Hocdé , R. Smolec , P. Moskalik , O. Ziółkowska , R. Singh Rathour

We present V and I_c CCD photometry for 40 LMC Cepheids at 1 to 3 epochs. This represents a significant increase in the number of LMC Cepheids with $I$-band data, and, as we show, is a useful addition to the sample which can be used to…

Astrophysics · Physics 2009-10-31 N. R. Tanvir , A. Boyle