2 edition of Ages of extragalactic intermediate-age star clusters found in the catalog.
Ages of extragalactic intermediate-age star clusters
|Series||NASA-CR -- 173927., NASA contractor report -- NASA CR-173927.|
|Contributions||Clemson University. College of Sciences., United States. National Aeronautics and Space Administration.|
|The Physical Object|
= = LATEST NEWS! LATEST NEWS! LATEST NEWS! LATEST NEWS! LATEST NEWS! = = December The tight sub-giant branch of the intermediate-age star cluster NGC implies a single-aged stellar population, Li C., de Grijs R., Bastian N., Deng L., Niederhofer F., Zhang C., , ApJ, submitted for publication. Canis Major is a constellation in the southern celestial the second century, it was included in Ptolemy's 48 constellations, and is counted among the 88 modern name is Latin for "greater dog" in contrast to Canis Minor, the "lesser dog"; both figures are commonly represented as following the constellation of Orion the hunter through the ciation: /ˌkeɪnɪs ˈmeɪdʒər/, genitive .
Young open clusters provide information about current star formation processes and are key objects for clarifying questions of Galactic structure, while observations of old and intermediate-age. Stellar Clusters and Star-Forming Complexes Much attention has been focused recently on the properties of young-to-intermediate age star clusters in nearby galaxies. This comes from two coupled lines of inquiry: (1) in low mass clusters, incomplete sampling of the stellar initial mass function at high mass has implications for the estimation.
For some reason, the globular clusters in our Galaxy are all old, but we do see very young globular-like clusters forming now in the Magellanic Clouds (e.g., NGC ) and in some late-type spirals and in some star-bursting dwarf galaxies like NGC It may have to do with the high local star-formation rates that occur in these by: 3. Several recent review articles are also available on: the internal dynamics of star clusters (Vesperini ; Heggie ; McMillan ), young massive star clusters (Portegies Zwart et al. ; Longmore et al. ), multiple stellar populations in globular clusters (Bastian and Lardo ; Gratton et al. ), star clusters in the Author: Anna Lisa Varri, Maxwell Xu Cai, Francisca Concha-Ramírez, František Dinnbier, Nora Lützgendorf, Vác.
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Get this from a library. Ages of extragalactic intermediate-age star clusters. [Clemson University. College of Sciences.; United States. National Aeronautics and Space Administration.;]. Aims: The aim is to derive ages and metallicities from integrated spectra of 14 star clusters in the Small Magellanic Cloud, including a few intermediate/old age star clusters.
Possibly related to the existence of nuclear star clusters is the presence of circumnuclear young massive star clusters, or circumnuclear SSCs (e.g.
Larsen & Richtler ; Whitmore et al. Author: Gelys Trancho. In addition, for the intermediate-age star cluster system in the fossil starburst region of M82 we find (i) a well-defined burst of cluster formation at slightly older ages than derived from previous estimates based on optical fluxes alone, and (ii) that by considering only the clusters originating in this burst of cluster formation, we uncover.
Extragalactic Globular Cluster Systems Proceedings of the ESO Workshop Held in Garching, Germany, August systems. Considerations about the formation and evolution compose the first chapter, followed by a chapter on young star clusters.
Then come four chapters reviewing the globular cluster system of early-type, late-type and. The central bulge of the galaxy is considered from the standpoint of stellar populations, ages, composition, kinematics, structure, and extragalactic context.
The central bulge is a bar viewed edge-on mass of 2 ×10 10 M ☉ ; the major axis is oriented ∼ 20° toward the first quandrant. At | b | > 8° much of the mass appears to be in an X-shaped distribution that. Globular clusters in the Magellanic Clouds have also been extensively observed during Cycles 4 and 5, though few results have been published so far (e.g., Gilmozzi et al.
Spanning a very wide range of ages, from few to yr, and with many of them being very populous, MC globulars are of fundamental importance for stellar population studies. Abstract. We present high signal-to-noise ratio integrated spectra of 24 star clusters in the Large Magellanic Cloud (LMC), obtained using the FLAIR spectrograCited by: They have simultaneously generated a number of controversies, particularly as to whether young star clusters may have the same origin as old globular clusters.
In addition, extensive studies have revealed that the SSP scenario does not seem to hold for some intermediate-age and young star clusters either, thus making the origin of multiple.
Welcome back to Messier Monday. We continue our tribute to our dear friend, Tammy Plotner, by looking at the open star cluster of Messier Enjoy. In the 18th century, while searching the night. Abstract. Currently there are two competing scenarios to explain the origin of the stellar population in globular clusters (GCs).
The main difference between tCited by: Extragalactic Globular Cluster Systems Proceedings of the ESO Workshop Held in Garching, August Editors: Kissler-Patig, Markus (Ed.) Free Preview.
Star Clusters in M33 - Clues to Galaxy Formation and Evolution.- M31 and its Globular Clusters.- IR Integrated Light Colors For Galactic GCs and An Update on Young M31 Globular Clusters.- Nuclear Star Clusters in Edge-on Galaxies.- HST ACS Wide-Field Photometry of the Sombrero Galaxy Globular Cluster System.- Intermediate-Age Globular Clusters.
The giant elliptical galaxy NGC is the brightest galaxy in the Fornax cluster, and displays a number of morphological features that might be interpreted as an intermediate age merger remanent (∼3 Gyr). Based on the idea that globular clusters systems (GCS) constitute genuine tracers of the formation and evolution of their host galaxies, we conducted a spectroscopic Author: Leandro Alberto Sesto, Favio Raúl Faifer, Juan Carlos Forte, Analía Viviana Smith Castelli.
The Formation and Evolution of Massive Star Clusters: Historical Overview: 3: van den Bergh, S. PART II. PROPERTIES AND STRUCTURE: Young Massive Clusters: Terlevich, R. Young Massive Star Clusters in Normal Galaxies: Larsen, S.S.
Young Massive Clusters in Merging and Starburst Galaxies: de Grijs, R. The Nuclei of Late-type Spiral. Globular Clusters in the Central Region of Nearby Galaxy Clusters: Hilker, M. Comparing the Old Stellar Population in Globulars and Dwarf Galaxies: the Cases of Phoenix and Leo A: Hopp, U.; Greggio, L.
Stellar Populations in Globular Clusters and Dwarf Galaxies: Ikuta, C.; Arimoto, N. The Ages of Globular Clusters in M87 from. Globular Clusters - Guides to Galaxies Extragalactic Star Clusters in Merging Galaxies. Pages Trancho, Gelys. Physical Parameters of Intermediate-Age LMC Clusters from Modelling of HST CMDs.
Pages Kerber, L.O. (et al.) Preview Buy Chap 27 June This NASA/ESA Hubble Space Telescope image reveals the iridescent interior of one of the most active galaxies in our local neighbourhood — NGCa small galaxy located about eleven million light-years away in the constellation of Camelopardalis (The Giraffe).This galaxy is currently a hotbed of vigorous star formation.
NGC is a starburst galaxy. Booktopia has The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies, International Astronomical Union Symposia by Jonathan E.
Grindlay. Buy a discounted Paperback of The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies online from Australia's leading online bookstore. Hence, Leo II appears to be an example of a dwarf spheroidal galaxy with a dominant intermediate-age population, not unlike that of the Carina dwarf (MighellSmecker-Hane et al.
Probably the most extraordinary star formation history revealed by HST belongs to the Leo I dwarf spheroidal galaxy (Mateo et al. The tight subgiant branch of the intermediate-age star cluster NGC implies a single-aged stellar population MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, DOI Author Url Public Url.
Hollyhead K, Adamo A, Bastian N, Gieles M, Ryon JE. stellar populations in compact galaxy groups: a multi-wavelength study of h 22, their star clusters, and dwarf galaxies.An extragalactic chromosome map: the intermediate-age SMC cluster Lindsay 1 Monthly Notices of the Royal Astronomical Society: Letters, LL DOI Author Url Publisher Url Public Url.
Salaris M, Cassisi S, Mucciarelli A, Nardiello D.