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Related papers: Open Clusters as Galactic Disk Tracers: I. Project…

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We review the implications of the Gaia Data Release 2 catalogue for studying the dynamics of Milky Way globular clusters, focusing on two separate topics. The first one is the analysis of the full 6-dimensional phase-space distribution of…

Astrophysics of Galaxies · Physics 2020-03-18 Eugene Vasiliev

In order to understand the Galactic structure, we perform a statistical analysis of the distribution of various cluster parameters based on an almost complete sample of Galactic open clusters yet available. The geometrical and physical…

Astrophysics of Galaxies · Physics 2018-06-13 Y. C. Joshi

We describe the dynamical, photometric, and spectroscopic data available for stars targeted by Spitzer and Herschel to search for cold circumstellar dust emission from debris disks, a collection that we name the Cold Debris Disk Surveys…

Solar and Stellar Astrophysics · Physics 2026-03-13 Scott J. Kenyon , Benjamin C. Bromley , Joan R. Najita

Globular clusters are highly efficient radio pulsar factories. These pulsars can be used as precision probes of the clusters' structure, gas content, magnetic field, and formation history; some of them are also highly interesting in their…

High Energy Astrophysical Phenomena · Physics 2015-01-05 J. W. T. Hessels , A. Possenti , M. Bailes , C. G. Bassa , P. C. C. Freire , D. R. Lorimer , R. Lynch , S. M. Ransom , I. H. Stairs

Open clusters are central elements of our understanding of the Galactic disk evolution, as an accurate determination of their parameters leads to an unbiased picture of our Galaxy's structure. Extending the analysis towards fainter…

Astrophysics of Galaxies · Physics 2021-02-22 K. Peña Ramírez , C. González-Fernández , A. -N. Chené , S. Ramírez Alegría

We analyze the 3D kinematics of a sample of $\sim 4400$ red clump stars ranging between 5 and 10 kpc from the Galactic center and up to 3 kpc from the Galactic plane. This sample is representative for the metal-rich ([Fe/H] = -0.6 to 0.5)…

Astrophysics of Galaxies · Physics 2015-05-20 D. I. Casetti-Dinescu , T. M. Girard , V. I. Korchagin , W. F van Altena

We explore connections between brightest cluster galaxies (BCGs) and their host clusters. We first construct a HeCS-omnibus cluster sample including 227 galaxy clusters within $0.02 < z < 0.30$; the total number of spectroscopic members…

Astrophysics of Galaxies · Physics 2020-03-18 Jubee Sohn , Margaret J. Geller , Antonaldo Diaferio , Kenneth J. Rines

Thin stellar streams originating from globular clusters are among the most sensitive tracers of low-mass dark-matter subhalos. Joint analysis of the entire population of stellar streams will place the most robust constraints on the…

Astrophysics of Galaxies · Physics 2024-10-08 Sarah Pearson , Ana Bonaca , Yingtian Chen , Oleg Y. Gnedin

Dynamical models allow us to connect the motion of a set of tracers to the underlying gravitational potential, and thus to the total (luminous and dark) matter distribution. They are particularly useful for understanding the mass and…

We present the first dynamical study of the optically selected Palomar Distant Cluster Survey (PDCS). We show that eleven out of twelve PDCS clusters we observed are real over-densities of galaxies. Most clusters have velocity dispersions…

We present a survey of the mass surface-density of spiral disks, motivated by outstanding uncertainties in rotation-curve decompositions. Our method exploits integral-field spectroscopy to measure stellar and gas kinematics in nearly…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Matthew A. Bershady , Marc A. W. Verheijen , Rob A. Swaters , David R. Andersen , Kyle B. Westfall , Thomas Martinsson

Open clusters offer us the means to study stellar properties in samples with well-defined ages and initial chemical composition. Here we present a survey of projected rotational velocities for a large sample of mainly B-type stars in young…

Astrophysics · Physics 2008-11-26 Wenjin Huang , Douglas R. Gies

The study of open star clusters makes us understand a lot about the composition and construction of the Milky Way Galaxy. Thanks to the Gaia DR2 database that helps us to get the genetic members of star clusters using their proper motions…

Astrophysics of Galaxies · Physics 2021-09-23 W. A. Badawy , A. L. Tadross , Y. M. Hendy , I. A. Hassan , M. N. Ismail

We have used a star-count algorithm based the Panoramic Survey Telescope And Rapid Response System 3$\pi$ survey data aim to identify and characterize uncharted open clusters (OCs). With limiting magnitudes of about 22 mag in \gps, \rps,…

Astrophysics of Galaxies · Physics 2013-09-04 C. C. Lin , W. P. Chen

The study of open cluster metallicities helps to understand the local stellar formation and evolution throughout the Milky Way. Its metallicity gradient is an important tracer for the Galactic formation in a global sense. Because open…

Astrophysics of Galaxies · Physics 2015-05-18 Harald Poehnl , Ernst Paunzen

Open clusters potentially provide an ideal environment for the search for transiting extrasolar planets since they feature a relatively large number of stars of the same known age and metallicity at the same distance. With this motivation,…

Astrophysics · Physics 2009-11-10 K. von Braun , B. L. Lee , S. Seager , H. K. C. Yee , G. Mallen-Ornelas , M. D. Gladders

Recent high-resolution observations with the Hubble Space Telescope (HST) reveal that star clusters of extraordinary luminosity and compactness are commonly found in a variety of starburst systems. There has been much speculation that these…

Astrophysics · Physics 2009-10-28 Luis C. Ho , Alexei V. Filippenko

[Abridged]: We present a database of structural and dynamical properties for 153 spatially resolved star clusters (50 "young massive clusters" and 103 old globulars) in the Milky Way, the Large and Small Magellanic Clouds, and the Fornax…

Astrophysics · Physics 2010-04-06 Dean E. McLaughlin , Roeland P. van der Marel

Stellar rotation is a fundamental ingredient in shaping the evolution of stars and it can also be used to trace past stellar interactions. Yet, systematic studies of stellar rotation in large samples of stars belonging to different…

It is widely believed that star clusters form with low star formation efficiencies. With the onset of stellar winds by massive stars or finally when the first super nova blows off, the residual gas is driven out of the embedded star…

Astrophysics of Galaxies · Physics 2015-05-27 P. Assmann , M. Fellhauer , P. Kroupa , R. C. Bruens , R. Smith
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