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CCD BVI photometry of the faint open clusters Berkeley~73, Berkeley~75 and Berkeley~25 are presented. The two latter are previously unstudied clusters to our knowledge. While Berkeley~73 is found to be of intermediate-age (about 1.5 Gyr…

Astrophysics · Physics 2009-11-11 G. Carraro , D. Geisler , A. Moitinho , G. Baume , R. Vazquez

The heavily obscured open cluster Berkeley~51 shows characteristics typical of young massive clusters, even though the few previous studies have suggested older ages. We combine optical ($UBV$) and 2MASS photometry of the cluster field with…

Solar and Stellar Astrophysics · Physics 2018-03-22 Ignacio Negueruela , Maria Monguió , Amparo Marco , Hugo M. Tabernero , Carlos González-Fernández , Ricardo Dorda

Recent near- and mid-infrared surveys have brought evidence that the Milky Way continues to form massive clusters. We carry out a program to determine the basic physical properties of the new massive cluster candidate [DBS2003]179.…

Astrophysics · Physics 2009-11-13 J. Borissova , V. D. Ivanov , M. M. Hanson , L. Georgiev , D. Minniti , R. Kurtev , D. Geisler

$UBVRI$ photometry of the five open clusters Czernik 4, Berkeley 7, NGC 2236, NGC 7226 and King 12 has been carried out using ARIES 104 cm telescope, Nainital. Fundamental cluster parameters such as foreground reddening $E(B-V)$, distance,…

Solar and Stellar Astrophysics · Physics 2015-06-16 Sneh Lata , A. K. Pandey , Saurabh Sharma , Charles Bonatto , Ram Kesh Yadav

We have introduced a semi-automated quantitative method to estimate the age and reddening of 1072 star clusters in the Large Magellanic Cloud (LMC) using the Optical Gravitational Lensing Experiment (OGLE) III survey data. This study brings…

Astrophysics of Galaxies · Physics 2016-08-24 P. K. Nayak , A. Subramaniam , S. Choudhury , G. Indu , Ram Sagar

We present here the fundamental parameters of ten open star clusters, nominated from Kronberger et al. (2006) who presented some new discovered stellar groups on the basis of 2MASS photometry and DSS visual images. Star counts and…

Astrophysics of Galaxies · Physics 2015-05-28 A. L. Tadross , R. El-Bendary , A. Osman , N. Ismail , A. Bakry

(ABRIDGED) We assess the systematic uncertainties in (young) cluster age, mass, and - to a lesser extent - extinction and metallicity determinations, based on broad-band imaging observations with the Hubble Space Telescope. Our aim here is…

We present a new catalog of star cluster candidates in the nearby spiral galaxy M33. It is based on eight existing catalogs wherein we have cross-referenced identifications and endeavored to resolve inconsistencies between them. Our catalog…

Astrophysics · Physics 2009-06-23 Ata Sarajedini , Conor L. Mancone

We present a catalog of near-infrared surveys of young (<= a few 10^6 yr) stellar groups and clusters within 1 kpc from the Sun, based on an extensive search of the literature from the past ten years. We find 143 surveys from 69 published…

We present integrated JHK_s 2MASS photometry and a compilation of integrated-light optical photoelectric measurements for 84 star clusters in the Magellanic Clouds. These clusters range in age from ~200 Myr to >10 Gyr, and have [Fe/H]…

Astrophysics · Physics 2009-11-13 P. M. Pessev , P. Goudfrooij , T. H. Puzia , R. Chandar

In this work we investigate the nature of 50 overdensities from the catalogue of Froebrich, Scholz, and Raftery (FSR) projected towards the Galactic anticentre, in the sector 160{\deg} \leq \ell \leq 200{\deg}. The sample contains…

Astrophysics of Galaxies · Physics 2012-04-02 Denilso Camargo , Charles Bonatto , Eduardo Bica

Deep JHKs photometry was obtained towards eight dense molecular cores and J-H vs. H-Ks color-color plots are presented. Our photometry, sensitive to the detection of a 1 solar mass, 1 X 10^6 year old star through approx. 35 - 50 magnitudes…

Astrophysics · Physics 2009-11-07 David C. Murphy , Philip C. Myers

We present CCD BV and JHK$_{s}$ 2MASS photometric data for the open cluster NGC 1513. We observed 609 stars in the direction of the cluster up to a limiting magnitude of $V\sim19$ mag. The star count method shows that the centre of the…

Astrophysics of Galaxies · Physics 2014-11-20 S. Bilir , T. Guver , I. Khamitov , T. Ak , S. Ak , K. B. Coskunoglu , E. Paunzen , E. Yaz

The Red MSX Source (RMS) survey has identified a large sample of massive young stellar objects (MYSOs) and ultra compact (UC) HII regions from a sample of ~2000 MSX and 2MASS colour selected sources. Using a recent catalogue of molecular…

Open clusters (OCs) in the Galaxy are excellent probes for tracing the structure and evolution of the Galactic disk. We present an updated catalog of parameters for 1,145 OCs, estimated using the Gaia DR3 data earlier listed in…

Astrophysics of Galaxies · Physics 2025-03-12 Geeta Rangwal , Aman Arya , Annapurni Subramaniam , Kulinder Pal Singh , Xiaowei Liu

The B,V CCD photometry of 916 stars in the field of the high galactic latitude intermediate age open cluster NGC 1245 is presented. The cluster parameters were estimated with the help of V vs (B-V) colour-magnitude diagram (CMD). After…

Astrophysics · Physics 2007-05-23 Annapurni Subramaniam

We use our Galactic Globular Cluster Catalog (G2C2) photometry for 111 Galactic globular clusters (GC) in g and z, as well as r and i photometry for a subset of 60 GCs and u photometry for 22 GCs, to determine the structural parameters…

Astrophysics of Galaxies · Physics 2015-05-20 Joachim Vanderbeke , Roberto De Propris , Sven De Rijcke , Maarten Baes , Michael J. West , John P. Blakeslee

We present new measurements of the centers for 65 Milky Way globular clusters. Centers were determined by fitting ellipses to the density distribution within the inner $2\arcmin$ of the cluster center, and averaging the centers of these…

Astrophysics of Galaxies · Physics 2015-05-19 Ryan Goldsbury , Harvey B. Richer , Jay Anderson , Aaron Dotter , Ata Sarajedini , Kristin Woodley

In the last decade star clusters have been found in the centers of spiral galaxies across all Hubble types. We here present a spectroscopic study of the exceptionally bright (10^6 - 10^8 Lsun) but compact (Re ~ 5 pc) nuclear star clusters…

We present new multiband photometry for the Galactic globular cluster IC 4499 extending well past the main sequence turn-off in the U, B, V, R, I, and DDO51 bands. This photometry is used to determine that IC4499 has an age of 12 pm 1 Gyr…

Solar and Stellar Astrophysics · Physics 2015-05-27 A. R. Walker , A. M. Kunder , G. Andreuzzi , A. Di Cecco , P. B. Stetson , M. Monelli , S. Cassisi , G. Bono , R. De Propris , M. Dall'Ora , J. M. Nemec , M. Zoccali