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相关论文: Haro 11 -- Untying the knots of the nuclear starbu…

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We present a survey of star clusters in the halo of IC 10, a starburst galaxy in the Local Group based on Subaru R band images and NOAO Local Group Survey UBVRI images. We find five new star clusters. All these star clusters are located far…

星系天体物理 · 物理学 2015-05-27 Sungsoon Lim , Myung Gyoon Lee

To study the formation of star clusters and their properties in a dwarf-dwarf merging galaxy, we have performed a numerical simulation of a dwarf-dwarf galaxy merger by using the Tree+GRAPE $N$-body/SPH code ASURA. In our simulation, 13…

星系天体物理 · 物理学 2025-01-23 Hidenori Matsui , Kenji Bekki , Madeleine McKenzie , Takayuki R. Saitoh

We model the formation of star clusters in a dwarf galaxy progenitor during the first $700 ~{\rm Myr}$ of cosmic history using a cosmological radiation-hydrodynamic simulation with a sub-grid star formation efficiency (SFE) model calibrated…

星系天体物理 · 物理学 2025-10-03 Fred Angelo Batan Garcia , Massimo Ricotti , Kazuyuki Sugimura

We report the results of a recent study of young star clusters (YSCs) in luminous blue compact galaxies (BCGs). The age distributions of the YSCs suggest that the starburst episode in Haro 11, ESO 185-IG13, and Mrk 930 started not more than…

宇宙学与河外天体物理 · 物理学 2011-07-05 Angela Adamo , Goeran Ostlin , Erik Zackrisson

Most stars form in highly clustered environments within molecular clouds, but eventually disperse into the distributed stellar field population. Exactly how the stellar distribution evolves from the embedded stage into gas-free associations…

星系天体物理 · 物理学 2023-09-21 Juan P. Farias , Stella S. R. Offner , Michael Y. Grudić , Dávid Guszejnov , Anna L. Rosen

We study the relationship between the field star formation and cluster formation properties in a large sample of nearby dwarf galaxies. We use optical data from the Hubble Space Telescope and from ground-based telescopes to derive the ages…

Aims. We present molecular line observations of the southwestern part of the IC 348 young cluster, and we use them together with NIR and mm continuum data to determine the distribution of dense gas, search for molecular outflows, and…

天体物理学 · 物理学 2009-11-11 M. Tafalla , M. S. N. Kumar , R. Bachiller

Star cluster formation is a major mode of star formation in the extreme conditions of interacting galaxies and violent starbursts. These newly-formed clusters are built from recycled gas, pre-enriched to various levels within the…

天体物理学 · 物理学 2007-05-23 P. Anders , U. Fritze--v. Alvensleben , R. de Grijs

We present a novel approach to the riddle of star cluster multiple populations. Stars form from molecular cores. But not all cores form stars. Following their initial compression, such 'failed' cores re-expand, rather than collapsing. We…

星系天体物理 · 物理学 2022-01-19 G. Parmentier , A. Pasquali

We examine FUV images of the LITTLE THINGS sample of nearby dwarf irregular (dIrr) and Blue Compact Dwarf (BCD) galaxies to identify distinct young regions in their far outer disks. We use these data, obtained with the Galaxy Evolution…

星系天体物理 · 物理学 2016-05-25 Deidre A. Hunter , Bruce G. Elmegreen , Elizabeth Gehret

Nuclear rings in barred galaxies are sites of active star formation. We use hydrodynamic simulations to study temporal and spatial behavior of star formation occurring in nuclear rings of barred galaxies where radial gas inflows are…

宇宙学与河外天体物理 · 物理学 2015-06-15 Woo-Young Seo , Woong-Tae Kim

Starburst galaxies, like M82, launch kiloparsec-scale galactic outflows that interact with the circumgalactic medium (CGM) in complex ways. Apart from enriching the CGM with metals and energy, these outflows may trigger star formation in…

We analyse multi-wavelength Hubble Space Telescope (HST) observations of a large number of star clusters in the nearby (post-) starburst dwarf galaxy NGC 1569. Their spectral energy distributions (SEDs) cover at least the wavelength range…

天体物理学 · 物理学 2009-11-10 P. Anders , R. de Grijs , U. Fritze--v. Alvensleben , N. Bissantz

At high redshift, starburst galaxies present irregular morphologies, with 10-20\%\ of their star formation occurring in giant clumps. These clumpy galaxies are considered to be the progenitors of local disk galaxies. To understand the…

星系天体物理 · 物理学 2016-08-17 R. Hinojosa-Goñi , C. Muñoz-Tuñón , J. Méndez-Abreu

Two main models coexist for the environment in which stars form. The clustered model stipulates that the bulk of star formation occurs within dense embedded clusters, but only a minority of them survive the residual gas expulsion phase…

星系天体物理 · 物理学 2025-08-19 Alexis L. Quintana , Emily L. Hunt , Hanna Parul

We have searched for massive molecular outflows in a sample of high-mass star forming regions, and we have characterised both the outflow properties and those of their associated molecular clumps. With a sample composed largely of more…

星系天体物理 · 物理学 2015-05-13 A. Lopez-Sepulcre , C. Codella , R. Cesaroni , N. Marcelino , C. M. Walmsley

I assess the similarities and differences between the star-formation modes in quiescent spiral galaxies versus those in violent starburst regions, including galactic nuclei. As opposed to the quiescent star-formation mode, current empirical…

天体物理学 · 物理学 2009-11-11 Richard de Grijs

We present a study of the hierarchical clustering of the young stellar clusters in six local (3--15 Mpc) star-forming galaxies using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy…

We report the discovery of star formation activity in perhaps the most distant molecular cloud in the extreme outer galaxy. We performed deep near infrared imaging with the Subaru 8.2 m telescope, and found two young embedded clusters at…

星系天体物理 · 物理学 2015-06-23 Natsuko Izumi , Naoto Kobayashi , Chikako Yasui , Alan T. Tokunaga , Masao Saito , Satoshi Hamano

Young stars form on a wide range of scales, producing aggregates and clusters with various degrees of gravitational self-binding. The loose aggregates have a hierarchical structure in both space and time that resembles interstellar…

天体物理学 · 物理学 2007-05-23 B. G. Elmegreen , Y. N. Efremov , R. E. Pudritz , H. Zinnecker