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相关论文: Spectral energy distributions of classical cepheid…

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The spectral energy distributions (SEDs) of 20 Milky Way (MW), 9 Large Magellanic Cloud (LMC), 7 Small Magellanic Cloud (SMC), 12 M31, and 7 M33 (classical) Cepheids with periods longer than 50 days were constructed using photometric data…

星系天体物理 · 物理学 2025-07-08 Martin Groenewegen

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…

太阳与恒星天体物理 · 物理学 2023-03-29 Kerdaris Kurbah , Sukanta Deb , Shashi M. Kanbur , Susmita Das , Mami Deka , Anupam Bhardwaj , Hugh Riley Randall , Selim Kalici

Anomalous Cepheids (ACs) are less studied metal-poor pulsating stars ([Fe/H]<-1.5) compared to Classical Cepheids (CCs) and RR Lyrae stars. They follow distinct Period-Luminosity (PL) and Period-Wesenheit (PW) relations and pulsate in…

We present a detailed analysis of the light curves and pulsation properties of First Overtone (FO) Cepheids in the Magellanic Clouds (MCs) obtained using observations and predictions from stellar pulsation models. Multiwavelength…

星系天体物理 · 物理学 2025-06-19 Kerdaris Kurbah , Shashi M. Kanbur , Sukanta Deb , Anupam Bhardwaj , Mami Deka , Susmita Das , Gautam Bhuyan

We present the results of the light curve model fitting technique applied to optical and near-infrared photometric data for a sample of 18 Classical Cepheids (11 fundamentals and 7 first overtones) in the Large Magellanic Cloud (LMC). We…

(abridged) Spectral energy distributions (SEDs) were constructed for a sample of 477 classical cepheids (CCs). The SEDs were fitted with a dust radiative transfer code. Four stars showed a large mid- or far-infrared excess and the fitting…

太阳与恒星天体物理 · 物理学 2020-03-04 M. A. T. Groenewegen

We present Period-Luminosity-Color and Period-Luminosity relations of classical Cepheids constructed for about 1280 Cepheids from the LMC and 2140 from the SMC. High quality BVI observations (120-360 epochs in the I-band and 15-40 in the…

天体物理学 · 物理学 2007-05-23 A. Udalski , M. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , P. Wozniak , K. Zebrun

The VISTA Magellanic Cloud (VMC, PI M.R. Cioni) survey is collecting deep Ks-band time-series photometry of the pulsating variable stars hosted by the system formed by the two Magellanic Clouds (MCs) and the "bridge" connecting them. In…

We present revised and improved mid-infrared Period-Luminosity (PL) relations for Large Magellanic Cloud (LMC) Cepheids based on double-epoch data of 70 Cepheids observed by Spitzer at 3.6, 4.5, 5.8 and 8.0um. The observed scatter at all…

天体物理学 · 物理学 2011-02-11 Barry F. Madore , Wendy L. Freedman , Jane Rigby , S. E. Persson , Laura Sturch , Violet Major

We present the first mid-infrared Period-Luminosity (PL) relations for Large Magellanic Cloud (LMC) Cepheids. Single-epoch observations of 70 Cepheids were extracted from Spitzer IRAC observations at 3.6, 4.5, 5.8 and 8.0 microns,…

天体物理学 · 物理学 2009-11-13 Wendy L. Freedman , Barry F. Madore , Jane Rigby , S. E. Persson , Laura Sturch

The OGLE data base is used in conjunction with Kurucz atmosphere models to generate sets of period, effective temperature and luminosity for fundamental and overtone Magellanic Cloud Cepheids. The Florida pulsation code (with linear…

天体物理学 · 物理学 2014-10-13 J. P. Beaulieu , J. R. Buchler , Z. Kollath

We analyze Galactic, Large Magellanic Cloud and Small Magellanic Cloud Cepheids and RR Lyrae variables in terms of period-color (PC) and amplitude-color (AC) diagrams at the phases of maximum and minimum light. We compiled Galactic Cepheids…

太阳与恒星天体物理 · 物理学 2015-06-22 Anupam Bhardwaj , Shashi M. Kanbur , Harinder P. Singh , Chow-Choong Ngeow

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…

太阳与恒星天体物理 · 物理学 2020-03-02 V. Ripepi , R. Molinaro , M. Marconi , M. -R. L. Cioni

The VISTA near infrared Y, J, Ks survey of the Magellanic System (VMC) is collecting deep Ks band time series photometry of pulsating variable stars hosted by the two Magellanic Clouds and their connecting Bridge. In this paper, we present…

We present multi-band Period-Luminosity (PL) relations for first-overtone mode Cepheids in the Small Magellanic Cloud (SMC). We derive optical band PL relations and the Wesenheit function using $VI$ mean magnitudes from the Optical…

星系天体物理 · 物理学 2016-03-23 Anupam Bhardwaj , Chow-Choong Ngeow , Shashi M. Kanbur , Harinder P. Singh

We present and discuss theoretical pulsational predictions concerning the properties of Classical Cepheids. The computations have been performed for three different chemical compositions taken as representative of Cepheids in the Magellanic…

天体物理学 · 物理学 2014-10-13 G. Bono , F. Caputo , V. Castellani , M. Marconi

Period-colour (PC) and amplitude-colour (AC) relations are studied for the Large Magellanic Cloud (LMC) Cepheids under the theoretical framework of the hydrogen ionization front (HIF) - photosphere interaction. LMC models are constructed…

天体物理学 · 物理学 2009-11-11 Shashi Kanbur , Chow-Choong Ngeow

Period-luminosity relations (PLRs) of type II Cepheids (T2Cs) in the Small Magellanic Cloud are derived based on OGLE-III, IRSF/SIRIUS and other data, and these are compared with results for the Large Magellanic Cloud and Galactic globular…

太阳与恒星天体物理 · 物理学 2015-05-20 Noriyuki Matsunaga , Michael W. Feast , Igor Soszynski

Period-colour (PC) and amplitude-colour (AC) relations at maximum, mean and minimum light are constructed from a large grid of full amplitude hydrodynamic models of Cepheids with a composition appropriate for the SMC (Small Magellanic…

天体物理学 · 物理学 2019-08-19 S. Kanbur , C. Ngeow , G. Feiden

We present homogeneous multiband (grizJHKs) time-series observations of 78 Cepheids including 49 fundamental mode variables and 29 first-overtone mode variables. These observations were collected simultaneously using the ROS2 and REMIR…

太阳与恒星天体物理 · 物理学 2024-01-09 A. Bhardwaj , V. Ripepi , V. Testa , R. Molinaro , M. Marconi , G. De Somma , E. Trentin , I. Musella , J. Storm , T. Sicignano , G. Catanzaro
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