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The past decade has seen an increase of star formation studies made at the molecular cloud scale, motivated mostly by the deployment of a wealth of sensitive infrared telescopes and instruments. Embedded clusters, long recognised as the…

星系天体物理 · 物理学 2018-02-07 Joana Ascenso

We carried out a search for new infrared star clusters, stellar groups and candidates using WISE images, which are very sensitive to dust emission nebulae. We report the discovery of 437 embedded clusters and stellar groups that show a…

太阳与恒星天体物理 · 物理学 2015-03-27 Denilso Camargo , Eduardo Bica , Charles Bonatto

We compiled a catalogue of infrared star clusters in the Galaxy, which are most of them embedded. It condenses the growing literature information. We also include in the sample infrared stellar groups which are less dense than star…

天体物理学 · 物理学 2009-11-07 E. Bica , C. M. Dutra , B. Barbuy

We have identified a previously unrecognized population of very compact, embedded low-mass Galactic stellar clusters. These tight (r$ \approx $0.14 pc) groupings appear as bright singular objects at the few arcsec resolution of the Spitzer…

星系天体物理 · 物理学 2015-06-05 Michael J. Alexander , Henry A. Kobulnicky

Embedded clusters are ideal laboratories to understand the early phase of the dynamical evolution of clusters as well as the massive star formation. An interesting observational phenomenon is that some of the embedded clusters show mass…

太阳与恒星天体物理 · 物理学 2015-06-11 Xinyue Er , Zhibo Jiang , Yanning Fu

We study the structure, interstellar absorption, color-magnitude diagrams, kinematics, and dynamical state of embedded star clusters in the star-forming region associated with the giant molecular cloud G174+2.5. Our investigation is based…

星系天体物理 · 物理学 2024-11-22 T. A. Permyakova , G. Carraro , A. F. Seleznev , A. M. Sobolev , D. A. Ladeyschikov , M. S. Kirsanova

We analyse the nature of a sample of stellar overdensities that we found projected on the Carina complex. This study is based on 2MASS photometry and involves the photometry decontamination of field stars, elaboration of intrinsic…

星系天体物理 · 物理学 2018-02-07 R. A. P. Oliveira , E. Bica , C. Bonatto

In this paper we present a novel method to identify and characterize stellar clusters deeply embedded in a dark molecular cloud. The method is based on measuring stellar surface density in wide-field infrared images using star counting…

天体物理仪器与方法 · 物理学 2017-11-29 Marco Lombardi , Charles J. Lada , Joao Alves

Stellar clusters are born embedded within giant molecular clouds (GMCs) and during their formation and early evolution are often only visible at infrared wavelengths, being heavily obscured by dust. Over the last 15 years advances in…

天体物理学 · 物理学 2011-05-05 Charles J. Lada , Elizabeth A. Lada

Although previous searches for star clusters have been very successful, many clusters are likely still omitted, especially at high Galactic latitude regions. In this work, based on the astrometry of Gaia EDR3, we searched nearby (parallax >…

星系天体物理 · 物理学 2022-08-31 Zhihong He , Kun Wang , Yangping Luo , Jing Li , Xiaochen Liu , Qingquan Jiang

We summarize the main results of a mid-IR photometric survey with ISO for a few nearby embedded clusters. The sensitivity and spatial resolution of ISOCAM provided a wonderful tool for studies of the youngest stellar clusters, which are…

天体物理学 · 物理学 2007-05-23 Anlaug Amanda Kaas , Sylvain Bontemps

We report on the identification of 54 embedded clusters around 217 massive protostellar candidates of which 34 clusters are new detections. The embedded clusters are identified as stellar surface density enhancements in the 2 $\mu$m All Sky…

天体物理学 · 物理学 2018-06-19 M. S. N. Kumar , E. Keto , E. Clerkin

Many open clusters listed in modern catalogues were initially reported by visual astronomers as apparent overdensities of bright stars. As observational techniques and analysis methods continue to improve, some of them have been shown to be…

太阳与恒星天体物理 · 物理学 2020-01-27 T. Cantat-Gaudin , F. Anders

Stellar clusters are born in cold and dusty molecular clouds and the youngest clusters are embedded to various degrees in dusty dark molecular material. Such embedded clusters can be considered protocluster systems. The most deeply buried…

星系天体物理 · 物理学 2015-05-14 Charles J. Lada

Traditional studies of stellar clusters in external galaxies use surface photometry and therefore focus on systems that are still bright and compact enough to be separated from the stellar background. Consequently, the latter stages of…

天体物理学 · 物理学 2007-05-23 Anne Pellerin , Martin Meyer , Jason Harris , Daniela Calzetti

We present ASteCA (Automated Stellar Cluster Analysis), a suit of tools designed to fully automatize the standard tests applied on stellar clusters to determine their basic parameters. The set of functions included in the code make use of…

星系天体物理 · 物理学 2015-03-17 Gabriel I. Perren , Rubén A. Vázquez , Andrés E. Piatti

Aims. We report a study of the global properties of some embedded clusters placed in the fourth quadrant of the Milky Way to clarify some issues related with their location into the Galaxy and their stellar formation processes. Methods. We…

太阳与恒星天体物理 · 物理学 2016-03-23 M. A. Corti , G. L. Baume , J. A. Panei , L. A. Suad , J. C. Testori , J. Borissova , R. Kurtev , A. N. Chené , S. Ramirez Alegría

Clusters of galaxies are important targets in observationally cosmology, as they can be used both to study the evolution of the galaxies themselves and to constrain cosmological parameters. Here we report on the first results of a major…

Streams of stars from captured dwarf galaxies and dissolved globular clusters are identifiable through the similarity of their orbital parameters, a fact that remains true long after the streams have dispersed spatially. We calculate the…

星系天体物理 · 物理学 2020-01-08 Nicholas W. Borsato , Sarah L. Martell , Jeffrey D. Simpson

The "VISTA Variables in the Via Lactea eXtended (VVVX)" ESO Public Survey is a near-infrared photometric sky survey that covers nearly 1700 sq. deg towards the Galactic disk and bulge. It is well-suited to search for new open clusters,…

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