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相关论文: Young Star Cluster Complexes in NGC 4038/39: Integ…

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Aims. Filamentary structures of early type stars are found to be a common feature of the Magellanic Clouds formed at an age of about 0.9-2*10^8 yr. As we go to younger ages these large structures appear fragmented and sooner or later form…

天体物理学 · 物理学 2009-11-11 E. Livanou , M. Kontizas , I. Gonidakis , E. Kontizas , F. Maragoudaki , S. Oliver , A. Efstathiou , U. Klein

We present a new high-resolution N-body/SPH simulation of an encounter of two gas-rich disk galaxies which closely matches the morphology and kinematics of the interacting Antennae galaxies (NGC 4038/39). The simulation includes radiative…

宇宙学与河外天体物理 · 物理学 2015-05-18 Simon J. Karl , Thorsten Naab , Peter H. Johansson , Hanna Kotarba , Christian M. Boily , Florent Renaud , Christian Theis

Recent high-resolution observations with the Hubble Space Telescope (HST) reveal that star clusters of extraordinary luminosity and compactness are commonly found in a variety of starburst systems. There has been much speculation that these…

天体物理学 · 物理学 2009-10-28 Luis C. Ho , Alexei V. Filippenko

Recent images taken with the Hubble Space Telescope (HST) of the interacting disk galaxies NGC 4038/4039 (the Antennae) reveal clusters of many dozens and possibly hundreds of young compact massive star clusters within projected regions…

天体物理学 · 物理学 2009-10-30 Pavel Kroupa

The luminosity functions (LFs) of star cluster systems (i.e. the number of clusters per luminosity interval) are vital diagnostics to probe the conditions of star cluster formation. Early studies have revealed a clear dichotomy between old…

天体物理学 · 物理学 2012-01-30 P. Anders , N. Bissantz , L. Boysen , R. de Grijs , U. Fritze -- v. Alvensleben

We analyse multi-wavelength observations of 32 young star clusters and associations in M33 with known oxygen abundance (8 < 12 + log(O/H) < 8.7), using ultraviolet (UV), optical, mid-infrared (MIR), CO (1-0) and 21-cm line (HI)…

宇宙学与河外天体物理 · 物理学 2015-05-19 M. Grossi , E. Corbelli , C. Giovanardi , L. Magrini

The presence of multiple populations (MPs) with distinctive light element abundances is a widespread phenomenon in clusters older than 6 Gyr. Clusters with masses, luminosities, and sizes comparable to those of ancient globulars are still…

星系天体物理 · 物理学 2017-04-19 C. Lardo , I. Cabrera-Ziri , B. Davies , N. Bastian

The Antennae Galaxies is one of the starbursts in major mergers. Tsuge et al. (2020) showed that the five giant molecular complexes in the Antennae Galaxies have signatures of cloud-cloud collisions based on the ALMA archival data at 60 pc…

星系天体物理 · 物理学 2021-03-17 Kisetsu Tsuge , Kengo Tachihara , Yasuo Fukui , Hidetoshi Sano , Kazuki Tokuda , Junko Ueda , Daisuke Iono

We have modelled the stellar and nebular continua and emission-line intensity ratios of massive stellar populations in the Antennae galaxy using high resolution and self-consistent libraries of model HII regions around central clusters of…

The presence of superstarclusters is a characteristic feature of starburst galaxies. We examine the properties of star forming regions and young star clusters in various environments, ranging from common to extreme. We then discuss new high…

天体物理学 · 物理学 2007-05-23 Paul P. van der Werf , Leonie Snijders

We present a study of the spatial distribution of the stellar cluster populations in the star forming galaxy NGC 628. Using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy…

We analyze archival HST/STIS/FUV-MAMA imaging and spectroscopy of 13 compact star clusters within the circumnuclear starburst region of M83, the closest such example. We compare the observed spectra with semi-empirical models, which are…

星系天体物理 · 物理学 2015-05-20 Aida Wofford , Rupali Chandar , Claus Leitherer

Galaxy interactions are known to trigger starbursts. The young star clusters formed in mergers may be young globular clusters. The ages of these young star clusters yield the timing of interaction-triggered star formation and provide an…

天体物理学 · 物理学 2009-11-13 Li-Hsin Chien , Joshua E. Barnes , Lisa J. Kewley , Kenneth C. Chambers

Recently, mid-infrared instruments have become available on several large ground-based telescopes, resulting in data sets with unprecedented spatial resolution at these long wavelengths. In this paper we examine 'ground-based-only'…

天体物理学 · 物理学 2009-11-13 Leonie Snijders , Lisa J. Kewley , Paul P. van der Werf

With the imagery from GALEX, HST, 2MASS, and Spitzer, and at the resolution of MIPS 24 micron(~6"), we study the variations of the broadband spectral energy distributions (SEDs) of star-forming regions within the nearest prototypal major…

宇宙学与河外天体物理 · 物理学 2015-05-14 Hong-Xin Zhang , Yu Gao , Xu Kong

We made a multi-wavelength study of young massive star clusters (YSCs) in the interacting galaxy ARP 24, using the optical and ultraviolet images from Hubble Space Telescope (HST), Sloan Digital Sky Survey, and Galaxy Evolution Explorer;…

天体物理学 · 物理学 2009-11-11 Chen Cao , Hong Wu

NGC 4945 is a nearby (3.8 Mpc) galaxy hosting a nuclear starburst and Seyfert Type 2 AGN. We use the Atacama Large Millimeter/submillimeter Array (ALMA) to image the 93 GHz (3.2 mm) free-free continuum and hydrogen recombination line…

We present a stellar population study of three HII galaxies (Mrk 36, UM 408, and UM 461) based on the analysis of new ground-based high resolution near-infrared J, H and Kp broad-band and Br narrow-band images obtained with Gemini/NIRI. We…

宇宙学与河外天体物理 · 物理学 2015-05-30 Patricio Lagos , Eduardo Telles , A. Nigoche-Netro , Eleazar Rodrigo Carrasco

The study of cluster populations as tracer of galaxy evolution is now quite possible with 8 m class telescopes and modern instrumentation. The cluster population can be used as a good tracer of the star forming episodes undergone by the…

天体物理学 · 物理学 2007-05-23 G. Trancho

We determine the mass function of young star clusters in the merging galaxies the ``Antennae'' (NGC 4038/39) from deep images taken with the WFPC2 on the refurbished Hubble Space Telescope (HST). This is accomplished by means of…

天体物理学 · 物理学 2011-03-28 Qing Zhang , S. Michael Fall