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We measure the projected half-light radii of young star clusters in 31 galaxies from the Legacy Extragalactic UV Survey (LEGUS). We implement a custom pipeline specifically designed to be robust against contamination, which allows us to…

Astrophysics of Galaxies · Physics 2021-10-20 Gillen Brown , Oleg Y. Gnedin

We present a multi-wavelength photometric and spectroscopic study of a newly discovered candidate cluster [DBS2003] 45. Our H, Ks photometry confirms that [DBS2003] 45 is a cluster. An average visual extinction Av 7.1+/-0.5 is needed to fit…

Astrophysics of Galaxies · Physics 2015-05-13 Qingfeng Zhu , Ben Davies , Donald F. Figer , Christine Trombley

We present a simple analytical description of the disruption of star clusters in a tidal field, which agrees excellently with detailed N-body simulations. The analytic expression can be used to predict the mass and age histograms of…

We present the results of a {\it James Webb Space Telescope} NIRCam investigation into the young massive star cluster (YMC) population in the luminous infrared galaxy VV 114. We identify 374 compact YMC candidates with a $S/N \geq 3$, 5,…

There is growing evidence that star clusters can no longer be considered simple stellar populations (SSPs). Intermediate and old age clusters are often found to have extended main sequence turn-offs (eMSTOs) which are difficult to explain…

Solar and Stellar Astrophysics · Physics 2019-04-10 Emma R. Beasor , Ben Davies , Nathan Smith , Nate Bastian

In this paper, we present photometry for young star clusters in M31, which are selected from Caldwell et al. These star clusters have been observed as part of the Beijing--Arizona--Taiwan--Connecticut (BATC) Multicolor Sky Survey from 1995…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Song Wang , Jun Ma , Zhou Fan , Zhenyu Wu , Tianmeng Zhang , Hu Zou , Xu Zhou

Intense, compact, star-forming galaxies are rare in the local Universe but ubiquitous at high redshift. We interpret the 0.1-22 um spectral energy distributions (SED) of a sample of 180 galaxies at 0.05<z<0.25 selected for extremely high…

Astrophysics of Galaxies · Physics 2016-04-20 Stephanie M. L. Greis , Elizabeth R. Stanway , Luke J. M. Davies , Andrew J. Levan

{Aims.} We present the main results of an imaging survey of possible young massive clusters (YMC) in M31 performed with the Wide Field and Planetary Camera2 (WFPC2) on the Hubble Space Telescope (HST). We present the images and color…

We present a multi-wavelength study of the young stellar population in the Cygnus-X DR15 region. We studied young stars forming or recently formed at and around the tip of a prominent molecular pillar and an infrared dark cloud. Using a…

The Orion complex is arguably the most studied star-forming region in the Galaxy. While stars are still being born in the Orion nebula, the oldest part was believed to be no more than 13 Myr old. In order to study the full hierarchy of star…

The Wolf-Rayet galaxy Haro 3 (Mrk 35, NGC 3353) was observed at the near-IR and radio wavelengths as part of ongoing program to study the earliest stages of starbursts. These observations confirm that the current episode of star formation…

Astrophysics · Physics 2009-11-10 K. E. Johnson , R. Indebetouw , C. Watson , H. A. Kobulnicky

Infant mortality brought about by the expulsion of a star cluster's natal gas is widely invoked to explain cluster statistics at different ages. While a well studied problem, most recent studies of gas expulsion's effect on a cluster have…

Solar and Stellar Astrophysics · Physics 2015-06-05 Nickolas Moeckel , Christopher Holland , Cathie J. Clarke , Ian A. Bonnell

We combine archival images for the nearby galaxy M33 (Triangulum Galaxy) from the ultraviolet (UV) to the infrared (IR) to derive ages, masses, and extinctions for the young star cluster population, and compare our physical parameters with…

Astrophysics of Galaxies · Physics 2021-12-22 Caitlin Moeller , Daniela Calzetti

Using ground-based UBVRI+Halpha CCD photometry we have been carrying out a search for young massive star clusters (YMCs) in a sample consisting of 21 nearby spiral galaxies. We find a large variety concerning the richness of the cluster…

Astrophysics · Physics 2007-05-23 Soeren S. Larsen , Tom Richtler

Star cluster formation is a major mode of star formation in the extreme conditions of interacting galaxies and violent starbursts. Young clusters are observed to form in a variety of such galaxies, a substantial number resembling the…

Astrophysics · Physics 2007-05-23 P. Anders , U. Fritze--v. Alvensleben , R. de Grijs

We study the young star cluster populations in 23 dwarf and irregular galaxies observed by the HST Legacy ExtraGalactic Ultraviolet Survey (LEGUS), and examine relationships between the ensemble properties of the cluster populations and…

The recent star formation histories (SFHs) of post-starburst galaxies have been determined almost exclusively from detailed modeling of their composite star light. This has provided important but limited information on the number, strength,…

Astrophysics of Galaxies · Physics 2021-10-27 Rupali Chandar , Angus Mok , K. Decker French , Adam Smercina , John-David T. Smith

We analyse the clump population of the spiral galaxy Sp 1149 at redshift 1.5. Located behind the galaxy cluster MACS J1149.5+2223, Sp 1149 has been significantly magnified allowing us to study the galaxy on physical scales down to ~100 pc.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Angela Adamo , Goeran Ostlin , Nate Bastian , Erik Zackrisson , Rachael C. Livermore , Lucia Guaita

Establishing ages for young clusters is key for properly tracking the star formation history of a region. In this paper we investigate a new approach to estimating ages for young populations, based on the well-founded assumption that the…

Solar and Stellar Astrophysics · Physics 2026-01-23 Tatiana Pavlidou , Aleks Scholz , Koraljka Muzic

I present optical observations of the Blue Compact Dwarf Galaxy UM 462. The images of this galaxy show several bright compact sources. A careful study of these sources has revealed their nature of young Super Star Clusters. The ages…

Astrophysics · Physics 2009-11-10 Leonardo Vanzi
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