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相关论文: Characterizing star cluster formation with WISE: 6…

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Abridged: We have used the well-selected sample of ~1750 embedded, young, massive stars identified by the RMS survey to investigate the Galactic distribution of recent massive star formation. We describe the various methods used to assign…

The discovery of gravitationally lensed stellar clusters at high redshift with the James Webb Space Telescope (JWST) has revealed extremely compact, massive star-forming systems in galaxies at $z > 6$, providing a new window into early…

星系天体物理 · 物理学 2026-05-13 Floor van Donkelaar , Lucio Mayer , Pedro R. Capelo , Debora Sijacki , Angela Adamo

Based on the DESI Legacy Imaging Surveys released data and available spectroscopic redshifts, we identify 1.58 million clusters of galaxies by searching for the overdensity of stellar mass distribution of galaxies within redshift slices…

宇宙学与河外天体物理 · 物理学 2024-04-03 Z. L. Wen , J. L. Han

The clusters of young stars in massive star-forming regions show a wide range of sizes, morphologies, and numbers of stars. Their highly subclustered structures are revealed by the MYStIX project's sample of 31,754 young stars in nearby…

Using deep photometric data from WFC@INT and [email protected] we measure the outer number density profiles of 19 stellar clusters located in the inner region of the Milky Way halo (within a Galactocentric distance range of 10-30 kpc) in order to…

Massive clusters are more often found in actively star forming galaxies than in quiescent ones, similar to the Milky Way. We have carried out an extensive survey of obscured Milky Way clusters to determine whether our Galaxy is still…

天体物理学 · 物理学 2009-11-11 J. Borissova , V. D. Ivanov , D. Minniti , D. Geisler

Recent observations have revealed a variety of young star clusters, including embedded systems, young massive clusters, and associations. We study the formation and dynamical evolution of these clusters using a combination of simulations…

星系天体物理 · 物理学 2016-01-27 Michiko Fujii , Simon Portegies Zwart

Nearly 500 cluster candidates have been reported by searches based on the new all-sky near infrared surveys. The true nature of the majority of these objects is still unknown. This project aims to estimate the physical parameters of some of…

天体物理学 · 物理学 2009-11-10 V. D. Ivanov , J. Borissova , F. Bresolin , P. Pessev

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

Many galaxies host pronounced circumnuclear starbursts, fuelled by infalling gas. Such activity is expected to drive the secular evolution of the nucleus and generate super winds, while the intense radiation fields and extreme gas and…

星系天体物理 · 物理学 2021-05-12 J. S. Clark , L. R. Patrick , F. Najarro , C. J. Evans , M. E. Lohr

Using photometric data from the Dark Energy Survey and the Wide-field Infrared Survey Explorer, we estimate photometric redshifts for 105 million galaxies using the nearest-neighbour algorithm. From such a large data base, 151,244 clusters…

宇宙学与河外天体物理 · 物理学 2022-06-07 Z. L. Wen , J. L. Han

We introduce the Unified Cluster Catalogue, the largest catalogue of stellar clusters currently listing nearly 14000 objects. In this initial release it exclusively contains Milky Way open clusters, with plans to include other objects in…

星系天体物理 · 物理学 2023-09-13 G. I. Perren , M. S. Pera , H. D. Navone , R. A. Vázquez

The majority of Galactic globular clusters (GCs) contain multiple stellar populations displaying specific chemical abundance variations. In particular, GCs generally contain a `primordial' population with abundances similar to field stars,…

星系天体物理 · 物理学 2023-02-01 E. Leitinger , H. Baumgardt , I. Cabrera-Ziri , M. Hilker , E. Pancino

In this paper we undertake a study of the 21 square degree SMOG field, a Spitzer cryogenic mission Legacy program to map a region of the outer Milky Way towards the Perseus and Outer spiral arms with the IRAC and MIPS instruments. We…

星系天体物理 · 物理学 2019-08-14 Elaine Winston , Joseph Hora , Robert Gutermuth , Volker Tolls

Young massive (M >10^4 Msun) stellar clusters are a good laboratory to study the evolution of massive stars. Only a dozen of such clusters are known in the Galaxy. Here we report about a new young massive stellar cluster in the Milky Way.…

We present the results of a systematic Milky Way satellite search performed across an array of publicly available wide-area photometric surveys. Our aim is to complement previous searches by widening the parameter space covered.…

星系天体物理 · 物理学 2019-01-28 G. Torrealba , V. Belokurov , S. E. Koposov

Empirically, the total number (or total mass) of globular clusters bound in a single galactic system correlates with the viral mass of the system. The form of this relation and its intrinsic scatter are potentially valuable constraints on…

星系天体物理 · 物理学 2025-01-03 Minh Ngoc Le , Andrew P. Cooper

Nuclear star clusters (NSCs) are massive star clusters found in the innermost region of most galaxies. While recent studies suggest that low-mass NSCs in dwarf galaxies form largely out of the merger of globular clusters and NSCs in massive…

星系天体物理 · 物理学 2024-03-26 Floor van Donkelaar , Lucio Mayer , Pedro R. Capelo , Tomas Tamfal , Thomas R. Quinn , Piero Madau

Clusters of galaxies are merging during the formation of large-scale structures in the Universe. Based on optical survey data, we identify a large sample of pre-mergers of galaxy clusters and merging subclusters in rich clusters. We find…

宇宙学与河外天体物理 · 物理学 2024-06-04 Z. L. Wen , J. L. Han , Z. S. Yuan

Close binary systems are the progenitors to both Type Ia supernovae and the compact object mergers that can be detected via gravitational waves. To achieve a binary with a small radial separation, it is believed that the system likely…

太阳与恒星天体物理 · 物理学 2024-11-11 Steffani M. Grondin , Maria R. Drout , Jason Nordhaus , Philip S. Muirhead , Joshua S. Speagle , Ryan Chornock