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相关论文: Fiducial Stellar Population Sequences for the VJKs…

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We describe an extensive observational project that has obtained high-quality and homogeneous photometry for a number of different Galactic star clusters (including M 92, M 13, M 3, M 71, and NGC 6791) spanning a wide range in metallicity…

天体物理学 · 物理学 2009-06-23 James L. Clem , Don A. VandenBerg , Peter B. Stetson

We present wide field near-infrared photometry of 12 Galactic globular clusters, typically extending from the tip of the cluster red giant branch (RGB) to the main sequence turnoff. Using recent homogenous values of cluster distance,…

太阳与恒星天体物理 · 物理学 2015-11-09 Roger E. Cohen , Maren Hempel , Francesco Mauro , Douglas Geisler , Javier Alonso-Garcia , Karen Kinemuchi

We present the fiducial sequences of a sample of Galactic star clusters in the five bands of the Pan-STARRS1 (PS1) photometric system (g_P1, r_P1, i_P1, z_P1, y_P1). These empirical sequences -- which include the red giant and sub-giant…

We present color-magnitude diagrams of five Galactic globular clusters and one Galactic open cluster spanning a wide range of metallicity (-2.1 < [Fe/H] < +0.3), as observed in the F606W (broad V) and F814W (I) bands with the Advanced…

We have combined existing optical magnitudes for stars in seven open clusters and 54 field stars with the corresponding JHKs photometry from the Two Micron All Sky Survey (2MASS). Combining optical with near-IR photometry broadens the color…

天体物理学 · 物理学 2009-11-10 Ata Sarajedini , Ken Brandt , Aaron Grocholski , Glenn Tiede

We investigate the multiple stellar populations of the globular clusters M3, M5, M13, and M71 using $g^\prime$ and intermediate-band CN-$\lambda 3883$ photometry obtained with the WIYN 0.9-m telescope on Kitt Peak. We find a strong…

太阳与恒星天体物理 · 物理学 2017-09-13 William P. Bowman , Catherine A. Pilachowski , Liese van Zee , Amanda Winans , Robin Ciardullo , Caryl Gronwall

We present wide field JHKs photometry of 16 Galactic globular clusters located towards the Galactic bulge, calibrated on the 2MASS photometric system. Differential reddening corrections and statistical field star decontamination are…

太阳与恒星天体物理 · 物理学 2016-11-15 Roger E. Cohen , Christian Moni Bidin , Francesco Mauro , Charles Bonatto , Douglas Geisler

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 BVI CCD photometry for more than 10,000 stars in the innermost region (0.3' < r <~ 4') of the globular cluster M 3. When added to the previous photographic photometry by Buonanno et al. (1994) reaching as far as r ~ 7', this…

The (rest-frame) near-IR domain contains important stellar population diagnostics and is often used to estimate masses of galaxies at low as well as high redshifts. However, many stellar population models are still relatively poorly…

天体物理学 · 物理学 2008-11-26 Peter M. Pessev , Paul Goudfrooij , Thomas H. Puzia , Rupali Chandar

We present new high-quality near-infrared photometry of 10 Galactic Globular Clusters spanning a wide metallicity range (-2.12<[Fe/H]<-0.49): five clusters belong to the Halo (namely, NGC288, NGC362, NGC6752, M15 and M30) and five (namely,…

天体物理学 · 物理学 2009-11-10 E. Valenti , F. R. Ferraro , L. Origlia

We present 2MASS $JHK_{\rm s}$ photometry for 913 star clusters and candidates in the field of M31, which are selected from the latest Revised Bologna Catalog of M31 globular clusters (GCs) and candidates. The photometric measurements in…

星系天体物理 · 物理学 2014-04-18 Song Wang , Jun Ma , Zhenyu Wu , Xu Zhou

We present stellar atmosphere and evolution models of main sequence stars in two stellar populations of the Galactic globular cluster NGC 6752. These populations represent the two extremes of light-element abundance variations in the…

太阳与恒星天体物理 · 物理学 2015-06-23 Aaron Dotter , Jason Ferguson , Charlie Conroy , A. P. Milone , A. F. Marino , David Yong

CFHT Megacam data in (g',r',i') are used to obtain deep, wide-field photometry of the globular cluster system (GCS) around M87. A total of 6200 GCs brighter than M_I = -8.5 are included in the study, essentially containing almost the entire…

星系天体物理 · 物理学 2015-05-13 William E. Harris

We present wide field photometry of the Galactic Globular Cluster M~22 in the B, V and I passbands for more than 186,000 stars. The study is complemented by the photometry in two narrowband filters centered on H$_{\alpha}$ and the adjacent…

天体物理学 · 物理学 2016-08-30 L. Monaco , E. Pancino , F. R. Ferraro , M. Bellazzini

Hubble Space Telescope imaging for 26 giant early-type galaxies, all drawn from the MAST archive, is used to carry out photometry of their surrounding globular cluster (GC) systems. Most of these targets are Brightest Cluster Galaxies…

星系天体物理 · 物理学 2023-03-01 William E. Harris

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 deep JHK photometry of the old and metal-rich open cluster NGC 6791. The photometry reaches below the main sequence turn-off to K = 16.5 mag. We combine our photometry with that from Stetson, Bruntt, & Grundahl (2003) to provide…

天体物理学 · 物理学 2014-10-13 Bruce W. Carney , Jae-Woo Lee , Benjamin Dodson

We present results from a pilot study of a new wide-field, multicolour (BVR) CCD imaging project, designed to examine galaxy evolution along large scale filaments that connect clusters of galaxies at intermediate redshifts (0.08 < z <…

天体物理学 · 物理学 2009-11-10 Kevin A. Pimbblet , Michael J. Drinkwater

Using photometric data from the 2MASS second incremental release point source catalog we constructed Ks vs. (J-Ks) color-magnitude diagrams (CMDs) of Galactic globular clusters (GGCs) for which the JKs photometric data have been made…

天体物理学 · 物理学 2009-11-07 Dong-Hwan Cho , Sang-Gak Lee
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