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相关论文: The Embedded Super Star Cluster of SBS0335-052

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Using far-infrared imaging from the "Herschel Lensing Survey", we derive dust properties of spectroscopically-confirmed cluster member galaxies within two massive systems at z~0.3: the merging Bullet Cluster and the more relaxed…

Dust plays a crucial role in galaxy evolution by shaping the spectral energy distribution (SED) and star formation history. However, standard models often underestimate the infrared luminosity of high-redshift galaxies ($z \sim 8$), leading…

In this paper, the first of a series of two devoted to modelling the spectra of galaxies of different morphological type in presence of dust, we present our description of the dust both in the diffuse ISM and the molecular clouds. Our model…

天体物理学 · 物理学 2009-11-13 L. Piovan , R. Tantalo , C. Chiosi

The infrared (IR) emission from interstellar dust in the Small Magellanic Cloud (SMC) is modelled using a mixture of amorphous silicate and carbonaceous grains, including a population of polycyclic aromatic hydrocarbon (PAH) molecules. (1)…

天体物理学 · 物理学 2014-10-13 Aigen Li , B. T. Draine

The young massive star-forming region IRAS05358+3543 was observed at high-spatial resolution in the continuum emission at 3.1 and 1.2mm with the Plateau de Bure Interferometer, and at 875 and 438mum with the Submillimeter Array. We resolve…

天体物理学 · 物理学 2009-11-13 H. Beuther , S. Leurini , P. Schilke , F. Wyrowski , K. M. Menten , Q. Zhang

We present a new phenomenological model for the spectral energy distribution of normal star-forming galaxies between 3 and 1100 microns. A sequence of realistic galaxy spectra are constructed from a family of dust emission curves assuming a…

天体物理学 · 物理学 2009-10-31 Daniel A. Dale , George Helou , Alessandra Contursi , Nancy A. Silbermann , Sonali Kolhatkar

Aims: To explore the infrared and radio properties of one of the closest Galactic starburst regions. Methods: Images obtained with the Herschel Space Observatory at wavelengths of 70, 160, 250, 350, and 500 microns using the PACS and SPIRE…

We observed a sample of evolved stars in the Large and Small Magellanic Clouds (LMC and SMC) with the Infrared Spectrograph on the Spitzer Space Telescope. Comparing samples from the SMC, LMC, and the Galaxy reveals that the dust-production…

天体物理学 · 物理学 2009-11-13 G. C. Sloan , K. E. Kraemer , P. R. Wood , A. A. Zijlstra , J. Bernard-Salas , D. Devost , J. R. Houck

The physics of galaxy clusters has proven to be influenced by several processes connected with their galactic component which pollutes the ICM with metals, stars and dust. However, it is not clear whether the presence of diffuse dust can…

宇宙学与河外天体物理 · 物理学 2015-05-14 M. Roncarelli , E. Pointecouteau , M. Giard , L. Montier , R. Pello

Aims: We have carried out an infrared study of the southern Galactic massive star forming region associated with IRAS 14416-5937. Methods: This star forming region has been mapped simultaneously in two far infrared bands at ~ 150 & 210…

天体物理学 · 物理学 2009-11-11 S. Vig , S. K. Ghosh , D. K. Ojha , R. P. Verma

IZw18, a blue compact dwarf (BCD) galaxy with the 2nd lowest metallicity measured in a star-forming object, has been observed with all three instruments on board the Spitzer Space Telescope. We present the deepest 5-36 micron mid-infrared…

Studying absorption and scattering of X-ray radiation by interstellar dust grains allows us to access the physical and chemical properties of cosmic grains even in the densest regions of the Galaxy. We aim at characterising the dust…

We present new James Webb Space Telescope ($JWST$) NIRSpec and MIRI integral-field spectroscopy of the remarkable system SN~2010da / NGC~300 ULX-1, the only known ultraluminous X-ray source powered by a neutron star with a supergiant donor.…

高能天体物理现象 · 物理学 2026-04-16 Emma R. Beasor , Ryan Lau , Nathan Smith , Dominic J. Walton , Marianne Heida , Ben Davies

We present a model for the diffuse interstellar dust that explains the observed wavelength-dependence of extinction, emission, linear and circular polarisation of light. The model is set-up with a small number of parameters. It consists of…

星系天体物理 · 物理学 2015-06-16 R. Siebenmorgen , N. V. Voshchinnikov , S. Bagnulo

Observations at near and mid-infrared wavelengths (1-18 micron) of SGR 1806-20 suggest that it is associated with a cluster of giant massive stars which are enshrouded in a dense cloud of dust. The centre of the best sky position of the…

天体物理学 · 物理学 2007-05-23 Yael Fuchs , F. Mirabel , S. Chaty , A. Claret , C. J. Cesarsky , D. A. Cesarsky

We explore the amount of obscured star-formation as a function of environment in the A901/902 supercluster at z=0.165 in conjunction with a field sample drawn from the A901 and CDFS fields, imaged with HST as part of the STAGES and GEMS…

We present a multiwavelength study of the infrared dark cloud MSXDC G034.43+00.24. Dust emission, traced by millimeter/submillimeter images obtained with the IRAM, JCMT, and CSO telescopes, reveals three compact cores within this infrared…

天体物理学 · 物理学 2009-11-13 J. M. Rathborne , J. M. Jackson , E. T. Chambers , R. Simon , R. Shipman , W. Frieswijk

Recent infrared (IR) observations of freshly-formed dust in supernova remnants (SNRs) have yielded significantly lower dust masses than predicted by theoretical models and measured from high redshift observations. The Crab Nebula's pulsar…

We have obtained near-infrared images and spectra of three blue compact dwarf galaxies of intermediate sub-solar metallicity Tol~35, Tol~3 and UM 462. This work is part of a larger project aimed to study the star formation and the stellar…

天体物理学 · 物理学 2009-11-07 L. Vanzi , L. K. Hunt , T. X. Thuan

To study the nature of Bulge AGB stars and in particular their circumstellar dust, we have analysed mid-infrared spectra obtained with the ISOCAM CVF spectrometer in three Bulge fields. The ISOCAM 5-16.5 micron CVF spectra were obtained as…