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相关论文: The Galactic Centre in the Far Infrared

200 篇论文

We present an analysis of far-infrared dust emission from diffuse cirrus clouds. This study is based on serendipitous observations at 160 microns at high galactic latitude with the Multiband Imaging Photometer (MIPS) onboard the Spitzer…

We explore the relationship between gas and dust in massive star-forming regions by comparing physical properties derived from each. We compare the temperatures and column densities in a massive star-forming Infrared Dark Cloud (IRDC,…

星系天体物理 · 物理学 2014-05-15 Cara Battersby , John Bally , Miranda Dunham , Adam Ginsburg , Steve Longmore , Jeremy Darling

Infrared photometry in the J (1.2 microns), H (1.7 microns), Ks (2.2 microns) bands from the 2MASS catalogue and in the W1 (3.4 microns), W2 (4.6 microns), W3 (12 microns), W4 (22 microns) bands from the WISE catalogue is used to reveal the…

星系天体物理 · 物理学 2019-10-25 George Gontcharov

The neighborhood of the Galactic black hole boasts a plethora of extended interstellar gas and dust features as well as populations of compact (unresolved, or marginally resolved) features such as the G objects. Most are well manifested in…

星系天体物理 · 物理学 2023-11-29 Cuc K. Dinh , Anna Cuirlo , Mark R. Morris , Rainer Schödel , Andrea Ghez , Tuan Do

We present a quantitative model for the infrared emission from dust in the diffuse interstellar medium. The model consists of a mixture of amorphous silicate grains and carbonaceous grains, each with a wide size distribution ranging from…

天体物理学 · 物理学 2008-11-26 Aigen Li , B. T. Draine

The far-infrared (FIR) emissivity of dust is an important parameter characterizing the physical properties of the grains. With the availability of stellar databases and far-infrared data from Infrared Space Observatory (ISO) it is possible…

天体物理学 · 物理学 2009-11-11 Cs. Kiss , P. Abraham , R. J. Laureijs , A. Moor , S. M. Birkmann

The Galactic Centre region contains a dense accumulation of stars, which can be separated into two components: A flattened and dense nuclear star cluster (NSC), and a surrounding, more extended and more flattened, nuclear stellar disc…

We used newly obtained observations from the Mid-Infrared Instrument (MIRI) equipped with the Medium Resolution Spectrometer (MRS) aboard the James Webb Space Telescope (JWST) to extract spectra covering the entire spectral range from 5 to…

星系天体物理 · 物理学 2025-11-13 P. Vermot , A. Ciurlo , D. Rouan , M. R. Morris , E. Bron , J. Le Bourlot , F. Le Petit , J. Qiu , A. Togi , A. Ghez T. Do , J. R. Lu

We present photometry of the nearby galaxy NGC 5128 (Centaurus A) observed with the PACS and SPIRE instruments on board the Herschel Space Observatory, at 70, 160, 250, 350 and 500 {\mu}m, as well as new CO J = 3-2 observations taken with…

By comparing sensitive Spitzer Space Telescope (SST) infrared and Green Bank Telescope 21 cm observations, we are able to report the first detection of dust emission in Complex C, the largest High Velocity Cloud in the sky. Dust in the…

天体物理学 · 物理学 2009-11-11 M. -A. Miville-Deschenes , F. Boulanger , W. T. Reach , A. Noreiga-Crespo

Context: The far-infrared (FIR) and sub-millimeter (submm) emissivity of the Milky Way (MW) cirrus is an important benchmark for dust grain models. Dust masses in other galaxies are generally derived from the FIR/submm using the emission…

Molecular clouds in the Galactic center (GC) reprocess radiation from past outbursts of nearby high-energy sources, generating a bright Fe K-alpha fluorescence at 6.4 keV. The closest clouds to the GC are only $\simeq 1.5$ pc from Sgr A*,…

高能天体物理现象 · 物理学 2023-11-01 G. Stel , G. Ponti , F. Haardt

We present the analysis of the physical properties of the interstellar medium (ISM) in the nearby early-type galaxy NGC 3665, based on the far-infrared (FIR) photometric and spectroscopic data as observed by the Herschel Space Observatory.…

星系天体物理 · 物理学 2018-02-28 Meng-Yuan Xiao , Yinghe Zhao , Qiu-Sheng Gu , Yong Shi

Three-dimensional panchromatic dust radiative transfer calculations are performed on a set of 198 galaxies of stellar masses in the range 5x10^8-3x10^10 Msun from a cosmological hydrodynamic simulation (resolved at 29pc/h) at z=7. In a…

宇宙学与河外天体物理 · 物理学 2015-06-17 Renyue Cen , Taysun Kimm

We present a study of the infrared/submm emission of the LMC star forming complex N158-N159-N160. Combining observations from the Spitzer Space Telescope (3.6-70um), the Herschel Space Observatory (100-500um) and LABOCA (870um) allows us to…

The effects of dust on infrared emission vary among galaxies of different morphological types. We investigated integrated spectral energy distributions in infrared and submillimeter emissions from the Large Magellanic Cloud based on the…

宇宙学与河外天体物理 · 物理学 2015-06-16 Sungeun Kim , Eunjoo Kwon , Kyoung-Sook Jeong , Kihun Kim , Chiyoung Cho , Eun Jung Chung

We have measured mid-infrared (MIR) fluxes of 3C sources on images taken with ISOCAM onboard the Infrared Space Observatory (ISO). The photometric data were combined with existing photometry at other wavelengths to assemble the spectral…

天体物理学 · 物理学 2009-11-10 Wolfram Freudling , Ralf Siebenmorgen

We present spectral energy distributions (SEDs) of 69 QSOs at z>5, covering a rest frame wavelength range of 0.1mu to ~80mu, and centered on new Spitzer and Herschel observations. The detection rate of the QSOs with Spitzer is very high…

星系天体物理 · 物理学 2015-06-18 C. Leipski , K. Meisenheimer , F. Walter , U. Klaas , H. Dannerbauer , G. De Rosa , X. Fan , M. Haas , O. Krause , H. -W. Rix

We present the properties of the first 250 $\mu$m blind sample of nearby galaxies (15 < D < 46 Mpc) containing 42 objects from the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). Herschel's sensitivity probes the faint end of…

The goal of the present paper is to investigate the circumstellar material around the brightest dust-enshrouded sources in the central stellar cluster of the Milky Way. Observations have been carried out at the European Southern…

星系天体物理 · 物理学 2009-10-02 J. Moultaka , A. Eckart , R. Schödel