English
Related papers

Related papers: Highly dynamically evolved intermediate-age open c…

200 papers

We discuss new photometry from high-resolution images of 7 intermediate-age (1-2 Gyr) star clusters in the Large Magellanic Cloud taken with the Advanced Camera for Surveys on board the Hubble Space Telescope. We fit color-magnitude…

Solar and Stellar Astrophysics · Physics 2015-05-28 Paul Goudfrooij , Thomas H. Puzia , Vera Kozhurina-Platais , Rupali Chandar

We report the discovery of three optical open clusters in the Milky Way. Two clusters are in Scutum (Cluster1 at l=18.44 degrees and b=-0.42 degrees, and Cluster2 at l=19.60 degrees and b=-1.02 degrees), thus projected not far from the…

Astrophysics · Physics 2009-11-10 E. Bica , C. Bonatto , C. M. Dutra

We present an updated UBVRI photometric catalog containing 970 objects in the field of M31, selected from the Revised Bologna Catalog (RBC v.4.0), including 965, 967, 965, 953, and 827 sources in the individual UBVRI bands, respectively, of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Zhou Fan , Richard de Grijs , Xu Zhou

The present paper presents a tabulation of data on all 600 Galactic open clusters for which it is presently possible to calculate linear diameters. As expected, the youngest `clusters' with ages < 15 Myr, contain a significant (greater than…

Astrophysics · Physics 2008-11-26 Sidney van den Bergh

We have selected 337 intermediate and high-mass YSOs ($1.5$ to $20$ M$_{\odot}$) well-characterised with spectroscopy. By means of the clustering algorithm HDBSCAN, we study their clustering and association properties in the Gaia DR3…

This work presents the first large-scale photometric variability survey of the intermediate age (~200 Myr) open cluster M11. Thirteen nights of data over two observing seasons were analyzed (using crowded field and ensemble photometry…

Astrophysics · Physics 2008-11-26 Jonathan R. Hargis , Eric L. Sandquist , David H. Bradstreet

In this study, we characterized 16 objects previously classified as faint or low contrast Galactic open clusters (OCs). We employed parameters associated to the OCs dynamical evolution: core ($r_c$), tidal ($r_t$) and half-mass ($r_{hm}$)…

Solar and Stellar Astrophysics · Physics 2020-02-21 M. S. Angelo , J. F. C. Santos , W. J. B. Corradi

We analyze the 3D morphology and kinematics of 13 open clusters (OCs) located within 500 pc of the Sun, using Gaia EDR3 and kinematic data from literature. Members of OCs are identified using the unsupervised machine learning method StarGO,…

We present high-resolution echelle spectroscopy, obtained with the UVES spectrograph on ESO/VLT, of two luminous star clusters in the metal-poor blue compact galaxy ESO 338-IG04 at a distance of 37.5 Mpc. Cross-correlating with template…

Astrophysics · Physics 2009-01-23 Goran Ostlin , Robert J. Cumming , Nils Bergvall

An important aspect in the evolutionary scenario of cool stars is their rotation and the rotationally induced magnetic activity and interior mixing. Stars in open clusters are particularly useful tracers for these aspects because of their…

Solar and Stellar Astrophysics · Physics 2015-08-05 Klaus G. Strassmeier , Joerg Weingrill , Thomas Granzer , Gabriel Bihain , Michael Weber , Sydney A. Barnes

We present and discuss new photometric data obtained with an IR camera in the J and K pass-bands for the intermediate age open clusters IC 166 (936 stars in total) and NGC 7789 (1030 stars in total). Ic 166 is a poorly studied open cluster…

Astrophysics · Physics 2007-05-23 Antonella Vallenari , Giovanni Carraro , Andrea Richichi

To progress in galactic studies based on open clusters, e.g. cluster formation rate or kinematical properties, one needs to improve the number of open clusters observed. However, only half of the 1700 known galactic open clusters have been…

Astrophysics · Physics 2009-11-11 M. Netopil , H. M. Maitzen , E. Paunzen , A. Claret

Surface brightness profiles for 23 M31 star clusters were measured using images from the Wide Field Planetary Camera 2 on the Hubble Space Telescope, and fit to two types of models to determine the clusters' structural properties. The…

Astrophysics of Galaxies · Physics 2011-01-07 P. Barmby , S. Perina , M. Bellazzini , J. G. Cohen , P. W. Hodge , J. P. Huchra , M. Kissler-Patig , T. H. Puzia , J. Strader

We examine the spatial distribution of star clusters in NGC 628 using the statistical tool INDICATE to quantify clustering tendencies. Our sample, based on HST and JWST observations, is the most complete to date, spanning ages from 1 Myr to…

Here, we conducted a photometric and astrometric study of two open stellar clusters Dolidze-18 and Ruprecht-70, which have not been photometrically studied before. The most important thing for using Gaia (DR2) database lies in the…

Astrophysics of Galaxies · Physics 2022-01-12 A. L. Tadross , Y. M. Hendy

The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to represent relatively young Galactic open…

The photometric characterization of M33 star clusters is far from complete. In this paper, we present homogeneous $UBVRI$ photometry of 708 star clusters and cluster candidates in M33 based on archival images from the Local Group Galaxies…

Astrophysics of Galaxies · Physics 2015-06-18 Zhou Fan , Richard de Grijs

We present results of the first extensive and deep CCD photometric survey carried out in the field of the open cluster Trumpler 27, an object in the constellation of Sagittarius not far from the Galaxy center. We look for young stars clumps…

Astrophysics of Galaxies · Physics 2015-06-03 Gabriel Perren , Rubén Vázquez , Giovanni Carraro

We present a list of 34 neglected entries from star cluster catalogues located at relatively high galactic latitudes ($|b| >$ 15$^{\circ}$) which appear to be candidate late stages of star cluster dynamical evolution. Although…

Astrophysics · Physics 2009-10-31 E. Bica , B. X. Santiago , C. M. Dutra , H. Dottori , M. R. de Oliveira , D. Pavani

The main astrophysical properties of 11 previously unstudied open star clusters are probed with JHK Near-IR (2MASS) photometry of Cutri et al. [Cutri, R., et al., 2003. The IRSA 2MASS All-sky Point Source Catalog, NASA/IPAC Infrared Science…

Astrophysics · Physics 2009-11-13 A. L. Tadross