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相关论文: Star Formation Histories within the Antennae Galax…

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Imaging of the Antennae galaxies (NGC 4038/4039) with the Infrared Array Camera (IRAC) aboard the Spitzer Space Telescope reveals large concentrations of star forming activity away from both nuclei of the two merging galaxies. These images…

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

We compare mid-infrared images of the Antennae galaxies (NGC 4038/39) from the Infrared Space Observatory, with optical images from the Hubble Space Telescope. The mid-infrared observations show that the most intense starburst in this…

天体物理学 · 物理学 2007-05-23 I. F. Mirabel , L. Vigroux , V. Charmandaris , M. Sauvage , P. Gallais , D. Tran , C. Cesarsky , S. C. Madden , P. -A. Duc

We present new aperture synthesis CO maps of the Antennae (NGC 4038/39) obtained with the Caltech Millimeter Array. These sensitive images show molecular emission associated with the two nuclei and a partial ring of star formation to the…

天体物理学 · 物理学 2009-10-31 C. D. Wilson , N. Scoville , S. C. Madden , V. Charmandaris

We report on a multi-wavelength study of the relationship between young star clusters in the Antennae galaxies (NGC 4038/9) and their interstellar environment, with the goal of understanding the formation and feedback effects of star…

天体物理学 · 物理学 2009-11-06 Qing Zhang , S. Michael Fall , Bradley C. Whitmore

During galaxy-galaxy interactions, massive gas clouds can be injected into the intergalactic medium which in turn become gravitationally bound, collapse and form stars, star clusters or even dwarf galaxies. The objects resulting from this…

宇宙学与河外天体物理 · 物理学 2015-05-20 M. Boquien , P. -A. Duc , F. Galliano , J. Braine , U. Lisenfeld , V. Charmandaris , P. N. Appleton

We present a set of hydro-dynamical numerical simulations of the Antennae galaxies in order to understand the origin of the central overlap starburst. Our dynamical model provides a good match to the observed nuclear and overlap star…

宇宙学与河外天体物理 · 物理学 2015-06-15 Simon J. Karl , T. Lunttila , T. Naab , P. H. Johansson , U. Klaas , M. Juvela

We present a ~ 1" (100 pc) resolution 12CO (3-2) map of the nearby intermediate stage interacting galaxy pair NGC 4038/9 (the Antennae galaxies) obtained with the Submillimeter Array. We find that half the CO (3-2) emission originates in…

We present deep, photometrically calibrated BVRJHK images of the nearby interacting galaxy pair NGC 4038/39 (``The Antennae''). Color maps of the images are derived, and those using the B, V, and K-bands are analyzed with techniques…

天体物理学 · 物理学 2009-05-13 Susan A. Kassin , Jay A. Frogel , Richard W. Pogge , Glenn P. Tiede , K. Sellgren

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…

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

Using the Infrared Spectrograph on the Spitzer Space Telescope, we observed the Antennae galaxies obtaining spectral maps of the entire central region and high signal-to-noise 5-38 um spectra of the two galactic nuclei and six…

We present a hydrodynamical simulation of an Antennae-like galaxy merger at parsec resolution, including a multi-component model for stellar feedback and reaching numerical convergence in the global star formation rate for the first time.…

星系天体物理 · 物理学 2015-06-23 Florent Renaud , Frédéric Bournaud , Pierre-Alain Duc

Large numbers of young stars are formed in merging galaxies, such as the Antennae galaxies. Most of these stars are formed in compact star clusters (i.e., super star clusters), which have been the focus of a large number of studies.…

天体物理学 · 物理学 2007-05-23 Bradley C. Whitmore

We have used previously published observations of the CO emission from the Antennae (NGC 4038/39) to study the detailed properties of the super giant molecular complexes with the goal of understanding the formation of young massive star…

天体物理学 · 物理学 2009-11-10 C. D. Wilson , N. Z. Scoville , S. C. Madden , V. Charmandaris

We present an analysis of the near-infrared spectrum of a young massive star cluster in the overlap region of the interacting galaxies NGC 4038/39 using population synthesis models. Our goal is to model the cluster population as well as…

宇宙学与河外天体物理 · 物理学 2015-05-14 Julia Greissl , Michael R. Meyer , Micol Christopher , Nick Scoville

The formation mechanism of super star clusters (SSCs), a present-day analog of the ancient globulars, still remains elusive. The major merger, the Antennae galaxies is forming SSCs and is one of the primary targets to test the cluster…

Super star clusters --- extremely massive clusters found predominately in starburst environments --- are essential building blocks in the formation of galaxies and thought to dominate star formation in the high-redshift universe. However,…

宇宙学与河外天体物理 · 物理学 2015-06-04 Lisa H. Wei , Eric Keto , Luis C. Ho

The prominent interacting galaxy pair NGC 4038/9 contains many active star-forming regions and is continuously forming new star clusters. We present a self-consistent n-body model for this system which includes an SPH gas component. The…

天体物理学 · 物理学 2007-05-23 P. Englmaier , D. Rigopoulou , S. Mengel

We present broad-band (U, V, I,and H) and narrow-band(H-alpha+[N II] and Paschen-alpha) images of the circumnuclear starburst rings in two nearby spiral galaxies, NGC 1512 and NGC 5248, obtained with WFPC2 and NICMOS on HST. Combined with…

天体物理学 · 物理学 2009-11-06 Dan Maoz , Aaron J. Barth , Luis C. Ho , Amiel Sternberg , Alexei V. Filippenko
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