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Related papers: Low-end mass function of the Quintuplet cluster

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The initial mass function (IMF) of the Arches cluster, which was formed a few million years ago in the harsh environment of the Galactic center (GC), has long been a target of interest to those who study the GC and the theory of star…

Astrophysics of Galaxies · Physics 2015-06-23 Jihye Shin , Sungsoo S. Kim

As a young massive cluster in the Central Molecular Zone, the Arches cluster is a valuable probe of the stellar Initial Mass Function (IMF) in the extreme Galactic Center environment. We use multi-epoch Hubble Space Telescope observations…

Astrophysics of Galaxies · Physics 2019-01-16 M. W. Hosek , J. R. Lu , J. Anderson , F. Najarro , A. M. Ghez , M. R. Morris , W. I. Clarkson , S. M. Albers

The massive Arches cluster near the Galactic center should be an ideal laboratory for investigating massive star formation under extreme conditions. But it comes at a high price: the cluster is hidden behind several tens of magnitudes of…

Astrophysics of Galaxies · Physics 2015-05-13 Pablo Espinoza , Fernando J. Selman , Jorge Melnick

We measure the high-mass stellar initial mass function (IMF) from resolved stars in M33 young stellar clusters. Leveraging \textit{Hubble Space Telescope's} high resolving power, we fully model the IMF probabilistically. We first model the…

In the star formation process, the vital impact of environmental factors such as feedback from massive stars and stellar density on the form of the initial mass function (IMF) at low-mass end is yet to be understood. Hence a systematic,…

Astrophysics of Galaxies · Physics 2021-05-12 Belinda Damian , Jessy Jose , Manash R. Samal , Estelle Moraux , Swagat R. Das , Sudeshna Patra

[abridged] Stars are thought to be formed predominantly in clusters. The clusters are formed following a cluster initial mass function (CMF) similar to the stellar initial mass function (IMF). Both the IMF and the CMF favour low-mass…

Astrophysics of Galaxies · Physics 2012-05-31 M. R. Haas , P. Anders

The stellar initial mass function (IMF) in star clusters is reviewed. Uncertainties in the observations are emphasized. We suggest there is a distinct possibility that cluster IMFs vary systematically with density or pressure. Dense…

Astrophysics · Physics 2007-05-23 Bruce G. Elmegreen

The initial mass function (IMF) is an essential tool with which to study star formation processes. We have initiated the photometric survey of young open clusters in the Galaxy, from which the stellar IMFs are obtained in a homogeneous way.…

Astrophysics of Galaxies · Physics 2015-11-05 Beomdu Lim , Hwankyung Sung , Hyeonoh Hur , Byeong-Gon Park

We report Hubble Space Telescope (HST) Near-infrared Camera and Multi-object Spectrometer (NICMOS) observations of the Arches and Quintuplet clusters, two extraordinary young clusters near the Galactic Center. For the first time, we have…

We have performed a series of N-body simulations to model the Arches cluster. Our aim is to find the best fitting model for the Arches cluster by comparing our simulations with observational data and to constrain the parameters for the…

Astrophysics of Galaxies · Physics 2015-05-14 S. Harfst , S. Portegies Zwart , A. Stolte

The Quintuplet star cluster is one of only three known young ($<10$ Myr) massive (M $>10^4$ M$_\odot$) clusters within $\sim100$ pc of the Galactic Center. In order to explore star cluster formation and evolution in this extreme…

Solar and Stellar Astrophysics · Physics 2019-05-29 Nicholas Z. Rui , Matthew W. Hosek , Jessica R. Lu , William I. Clarkson , Jay Anderson , Mark R. Morris , Andrea M. Ghez

We present Near-IR photometry of the Arches cluster, a young and massive stellar cluster near the Galactic center. We have analyzed the high resolution (FWHM 0.2") H and K' band images in the Galactic Center Demonstration Science Data Set,…

Astrophysics · Physics 2015-06-24 Yujin Yang , Hong Soo Park , Myung Gyoon Lee , Sang-Gak Lee

Residual-gas expulsion after cluster formation has recently been shown to leave an imprint in the low-mass present-day stellar mass function (PDMF) which allowed the estimation of birth conditions of some Galactic globular clusters (GCs)…

Astrophysics of Galaxies · Physics 2015-06-04 Michael Marks , Pavel Kroupa , Jörg Dabringhausen , Marcel S. Pawlowski

We determine the initial mass function (IMF) of the ``thin disk'' by means of a direct comparison between synthetic stellar samples (for different matching choices of IMF, star formation rate SFR and depletion) and a complete…

Astrophysics · Physics 2009-11-07 K. -P. Schröder , B. Pagel

The stellar initial mass functions (IMFs) for the Galactic bulge, the Milky Way, other galaxies, clusters of galaxies, and the integrated stars in the Universe are composites from countless individual IMFs in star clusters and associations…

Astrophysics · Physics 2008-11-26 Bruce G. Elmegreen

We summarize recent observational and theoretical progress aimed at understanding the origin of the stellar initial mass function (IMF) with specific focus on galactic star-forming regions. We synthesize data from various efforts to…

The stellar initial mass function (IMF) is critical to our understanding of star formation and the effects of young stars on their environment. On large scales, it enables us to use tracers such as UV or Halpha emission to estimate the star…

We present new absolute proper motion measurements for the Arches and Quintuplet clusters, two young massive star clusters near the Galactic center. Using multi-epoch HST observations, we construct proper motion catalogs for the Arches…

Astrophysics of Galaxies · Physics 2022-11-09 Matthew W. Hosek , Tuan Do , Jessica R. Lu , Mark R. Morris , Andrea M. Ghez , Gregory D. Martinez , Jay Anderson

We study the formation of globular clusters in massive compact clouds with the low-metallicity of $Z=10^{-3}~Z_{\odot}$ by performing three-dimensional radiative-hydrodynamics simulations. Considering the uncertainty of the initial mass…

Astrophysics of Galaxies · Physics 2023-07-12 Hajime Fukushima , Hidenobu Yajima

Using samples drawn from the Sloan Digital Sky Survey, we study for the first time the relation between large-scale environments (Clusters, Groups and Voids) and the stellar Initial Mass Function (IMF). We perform an observational approach…

Astrophysics of Galaxies · Physics 2019-04-29 Elham Eftekhari , Moein Mosleh , Alexandre Vazdekis , Saeed Tavasoli
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