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相关论文: Panchromatic fits to the Globular Cluster NGC 6366

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We present multichromatic isochrone fits to the colour-magnitude data of the globular cluster NGC 6366, based on Hubble Space Telescope Advanced Camera for Surveys/Wide Field Channel and Southern Astrophysical Research photometric data. We…

太阳与恒星天体物理 · 物理学 2013-07-19 Fabíola Campos , S. O. Kepler , C. Bonatto , J. R. Ducati

We fit various colour-magnitude diagrams (CMDs) of the Galactic globular clusters NGC\,6397 and NGC\,6809 (M55) by isochrones from the Dartmouth Stellar Evolution Database (DSED) and Bag of Stellar Tracks and Isochrones (BaSTI) for…

We present new isochrone fits to the colour-magnitude diagrams of the Galactic globular clusters NGC\,6362 and NGC\,6723. We utilize 22 and 26 photometric filters for NGC\,6362 and NGC\,6723, respectively, from the ultraviolet to…

We present new isochrone fits to colour-magnitude diagrams of the Galactic globular cluster NGC\,6205 (M13). We utilise 34 photometric bands from the ultraviolet to mid-infrared by use of data from the {\it HST}, {\it Gaia} DR2, SDSS,…

星系天体物理 · 物理学 2020-08-25 G. A. Gontcharov , M. Yu. Khovritchev , A. V. Mosenkov

We present new isochrone fits to colour-magnitude diagrams of the Galactic globular clusters NGC\,288, NGC\,362, and NGC\,6218 (M12). We utilize a lot of photometric bands from the ultraviolet to mid-infrared by use of data from the {\it…

We fit various colour-magnitude diagrams (CMDs) of the high-latitude Galactic globular clusters NGC\,5024 (M53), NGC\,5053, NGC\,5272 (M3), NGC\,5466, and NGC\,7099 (M30) by isochrones from the Dartmouth Stellar Evolution Database and Bag…

We present new isochrone fits to colour-magnitude diagrams of the Galactic globular cluster NGC 5904 (M5). We utilise 29 photometric bands from the ultraviolet to mid-infrared by use of the data from the {\it Hubble Space Telescope}, {\it…

星系天体物理 · 物理学 2019-10-25 George A. Gontcharov , Aleksandr V. Mosenkov , Maxim Yu. Khovritchev

We estimate key parameters for the Galactic globular clusters NGC1904 and NGC4372 and update the parameters for NGC288, NGC362, NGC5904, NGC6205, and NGC6218, which were analysed in our previous papers. We fit various colour-magnitude…

We quantified and calibrated the metallicity and temperature sensitivities of colors derived from nine Wide Field Camera 3 (WFC3) filters aboard the Hubble Space Telescope using Dartmouth isochrones and Kurucz atmospheres models. The…

Recent work has used spectra of about 5000 stars in NGC 6397 that were extracted from a MUSE mosaic to determine the atmospheric parameters for these stars by fitting the spectra against the Goettingen Spectral Library. A significant change…

太阳与恒星天体物理 · 物理学 2020-04-08 Rashi Jain , Philippe Prugniel , Lucimara Martins , Ariane Lançon

This paper provides a detailed comparison of the differences in parameters derived for a star cluster from its color-magnitude diagrams depending on the filters and models used. We examine the consistency and reliability of fitting three…

太阳与恒星天体物理 · 物理学 2015-06-23 Shane Hills , Ted von Hippel , Stephane Courteau , Aaron M. Geller

We perform an extensive test of theoretical stellar models for main-sequence stars in ugriz, using cluster fiducial sequences obtained in the previous paper of this series. We generate a set of isochrones using the Yale Rotating…

Reliable temperature-colour transformations are a necessary ingredient for isochrones to be compared with observed colour-magnitude-diagrams of globular clusters. We show that both theoretical and empirical published transformations to…

天体物理学 · 物理学 2007-05-23 Achim Weiss , Maurizio Salaris

We present BV photometry of the Galactic globular cluster NGC 5286, based on 128 V frames and 133 B frames, and covering the entire face of the cluster. Our photometry reaches almost two magnitudes below the turn-off level, and is…

天体物理学 · 物理学 2009-11-13 M. Zorotovic , M. Catelan , M. Zoccali , B. J. Pritzl , H. A. Smith , A. W. Stephens , R. Contreras , M. E. Escobar

The Gaia mission has provided highly accurate observations that have significantly reduced the scatter in the colour-magnitude diagrams of open clusters. As a result of the improved isochrone sequence of the open cluster M67, we have…

太阳与恒星天体物理 · 物理学 2024-07-09 Claudia Reyes , Dennis Stello , Marc Hon , Regner Trampedach , Eric Sandquist , Marc Pinsonneault

In view of the important contributions of red giants to the integrated light in evolutionary synthesis calculations of old stellar populations in clusters and galaxies, we provide a comparison of theoretical isochrones computed from the…

天体物理学 · 物理学 2007-05-23 T. Lejeune , R. Buser

The fundamentals of estimating essential stellar parameters of an open cluster-NGC 2360 and globular clusters-NGC 5272 are presented extensively in this work. Here, the evaluation of stellar parameters, by manually fitting the appropriate…

星系天体物理 · 物理学 2022-11-09 Kanwar Preet Kaur , Pankaj S. Joshi

An extensive grid of metal-rich isochrones utilizing the latest available input physics has been calculated for comparison with the old, metal-rich open cluster NGC 6791. The isochrones have been simultaneously fit to BV and VI color…

天体物理学 · 物理学 2009-10-31 Brian Chaboyer , Elizabeth M. Green , James Liebert

In this paper we analyse the evolutionary status and properties of the old open cluster NGC 2355, located in the Galactic anticentre direction, as a part of the long term programme BOCCE. NGC 2355 was observed with LBC@LBT using the Bessel…

太阳与恒星天体物理 · 物理学 2015-09-30 P. Donati , A. Bragaglia , E. Carretta , V. D'Orazi , M. Tosi , F. Cusano , R. Carini

We extend our effort to calibrate stellar isochrones in the Johnson-Cousins ($BVI_C$) and the 2MASS ($JHK_s$) filter systems based on observations of well-studied open clusters. Using cool main-sequence (MS) stars in Praesepe, we define…

太阳与恒星天体物理 · 物理学 2015-09-23 Deokkeun An , Donald M. Terndrup , Marc H. Pinsonneault , Jae-Woo Lee
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