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Related papers: Haro 11 -- Untying the knots of the nuclear starbu…

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Nuclear rings are excellent laboratories for probing diverse phenomena such as the formation and evolution of young massive star clusters (YMCs), nuclear starbursts, as well as the secular evolution and dynamics of their host galaxies. We…

Astrophysics of Galaxies · Physics 2018-05-02 Chao Ma , Richard de Grijs , Luis C. Ho

Star-forming clumps have been found to significantly influence the star formation of gas-rich $z>1$ galaxies. Using public data from JWST/NIRCam (COSMOS-Web) and ALMA (FMOS-COSMOS), we study a sample of 32 massive ($>10^{10.5}\,\rm…

Small amounts of star formation in elliptical galaxies are suggested by several results: surprisingly young ages from optical line indices, cooling X-ray gas, and mid-IR dust emission. Such star formation has previously been difficult to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 H. Alyson Ford , Joel N. Bregman

We have identified 1027 star forming complexes in a sample of 46 galaxies from the Spirals, Bridges, and Tails (SB&T) sample of interacting galaxies, and 693 star forming complexes in a sample of 38 non-interacting spiral (NIS) galaxies in…

We present measurements of stellar population properties of a newly discovered spectroscopically confirmed $z=11.10^{+0.11}_{-0.26}$, gravitationally lensed galaxy, using JWST NIRSpec PRISM spectroscopy and NIRCam imaging. The arc is highly…

Using echelle spectroscopy, obtained at Las Campanas Observatory, we present a detailed study of the internal kinematics of the nebular material in multiple knots of the blue compact dwarf galaxy Haro 15. A detailed analysis of the complex…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Verónica Firpo , Guillermo Bosch , Guillermo F. Hägele , Ángeles I. Díaz , Nidia Morrell

FIR imaging of interacting galaxies allows locating even hidden sites of star formation and measuring of the relative strength of nuclear and extra-nuclear star formation. We want to resolve the star-forming sites in the nearby system of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Ulrich Klaas , Markus Nielbock , Martin Haas , Oliver Krause , Jürgen Schreiber

Multispectral studies of nearby, forming stars provide insights into all classes of accreting systems. Objects which have magnetic fields, spin, and accrete produce jets and collimated outflows. Jets are seen in systems ranging from brown…

Astrophysics of Galaxies · Physics 2024-01-12 John Bally

The circumnuclear star-forming ring of the barred spiral galaxy NGC 1097 provides a unique laboratory to study star formation under extreme conditions. This work aims to derive the physical properties of the circumnuclear star-forming…

Astrophysics of Galaxies · Physics 2026-02-11 Sandra Zamora , Angeles I. Díaz , Asier Castrillo

Photometrically distinct nuclear star clusters (NSCs) are common in late-type-disk and spheroidal galaxies. The formation of NSCs is inevitable in the context of normal star formation in which a majority of stars form in clusters. A young,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Meghann Agarwal , Milos Milosavljevic

We present photometry of the outer star clusters in NGC 1275, the brightest galaxy in the Perseus cluster. The observations were taken using the Hubble Space Telescope Advanced Camera for Surveys. We focus on two stellar regions in the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 R. E. A. Canning , A. C. Fabian , R. M. Johnstone , J. S. Sanders , C. J. Conselice , C. S. Crawford , J. S. Gallagher , E. Zweibel

Stars are formed by gravitational collapse, spontaneously or, in some cases under the constructive influence of nearby massive stars, out of molecular cloud cores. Here we present an observational diagnosis of such triggered formation…

Astrophysics of Galaxies · Physics 2022-03-30 Tanvi Sharma , Wen Ping Chen , Neelam Panwar , Yan Sun , Yu Gao

Spatially resolved studies are key to understanding when, where, and how stars form within galaxies. Using slitless grism spectra and broadband imaging from the CAnadian NIRISS Unbiased Cluster Survey (CANUCS) we study the spatially…

Galactic nuclei often harbor a disproportionately large amount of star formation activity with respect to their surrounding disks. Not coincidentally, the density of molecular material in galactic nuclei is often also much greater than that…

Astrophysics · Physics 2007-05-23 Donald F. Figer , Mark Morris

Wide field near-infrared observations and Spitzer Space Telescope IRAC observations of the DR21/W75 star formation regions are presented. The photometric data are used to analyse the extinction, stellar content and clustering in the entire…

Astrophysics · Physics 2008-11-26 M. S. N. Kumar , C. J. Davis , J. M. C. Grave , B. Ferreira , D. Froebrich

Herbig-Haro objects (HHOs) are caused by outflows from young objects. Since the outflow relies on mass accretion from a circumstellar disk, it indicates ongoing growth. Recent results of infrared observations yielded evidence for disks…

Astrophysics · Physics 2008-11-26 Bringfried Stecklum , Helmut Meusinger , Dirk Froebrich

This paper investigates the impact of radiative and mechanical feedback from O-type stars on their parent molecular clouds and the triggering of formation of future generation of stars. We study the infrared bubble S111 created by the…

Astrophysics of Galaxies · Physics 2022-02-16 Bhaswati Mookerjea

We investigate how star formation is spatially organized in the grand-design spiral NGC 1566 from deep HST photometry with the Legacy ExtraGalactic UV Survey (LEGUS). Our contour-based clustering analysis reveals 890 distinct stellar…

Two modes of star formation are involved to explain the origin of young stars near Sgr A*. One is a disk-based mode, which explains the disk of stars orbiting Sgr A*. The other is the standard cloud-based mode observed in the Galactic disk.…

Astrophysics of Galaxies · Physics 2017-06-28 F. Yusef-Zadeh , M. Wardle

Young massive star clusters spanning $\sim 10^4 - 10^8 M_\odot$ in mass have been observed to have similar surface brightness profiles. Recent hydrodynamical simulations of star cluster formation have also produced star clusters with this…