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相关论文: Far-infrared dust properties in the Galaxy and the…

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We investigate the far-infrared SED of the Galaxy and the Magellanic Clouds by using the COBE (COsmic Background Explorer) / DIRBE (Diffuse InfraRed Background Experiment) ZSMA (Zodi - Subtracted Mission Average) maps at wavelengths of 60…

天体物理学 · 物理学 2015-06-24 Yasunori Hibi , Hiroshi Shibai , Mitsunobu Kawada , Takafumi Ootsubo , Hiroyuki Hirashita

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 most important cooling lines of the neutral interstellar medium (ISM) lie in the far-infrared (FIR). We present measurements by the Infrared Space Observatory Long Wavelength Spectrometer of seven lines from neutral and ionized ISM of…

天体物理学 · 物理学 2008-12-18 S. Malhotra , M. J. Kaufman , D. Hollenbach , G. Helou , R. H. Rubin , J. Brauher , D. Dale , N. Y. Lu , S. Lord , G. Stacey , A. Contursi

We investigate the FIR properties of a sample of BCDs observed by AKARI. By utilizing the data at wavelengths of $\lambda =65 \mu$m, 90 $\mu$m, and 140 $\mu$m, we find that the FIR colours of the BCDs are located at the natural…

星系天体物理 · 物理学 2009-11-13 Hiroyuki Hirashita , Tomohiro T. Ichikawa

The local correlation between far-infrared (FIR) emission and radio-continuum (RC) emission for the Small Magellanic Cloud (SMC) is investigated over scales from 3 kpc to 0.01 kpc. Here, we report good FIR/RC correlation down to ~15 pc. The…

星系天体物理 · 物理学 2015-06-11 Howard Leverenz , Miroslav D. Filipović

We have derived the dust emissivity in the Far-Infrared (FIR) using data available in the literature. We use two wavelength dependences derived from spectra of Galactic FIR emission (Reach et al. 1995). A value for the emissivity,…

天体物理学 · 物理学 2007-05-23 Simone Bianchi , Jonathan I. Davies , Paul B. Alton

(Abridged) We present far-infrared (FIR) photometry at 150 micron and 205 micron of eight low-redshift starburst galaxies obtained with the ISO Photometer. Five of the eight galaxies are detected in both wavebands and these data are used,…

天体物理学 · 物理学 2009-07-09 D. Calzetti , L. Armus , R. C. Bohlin , A. L. Kinney , J. Koornneef , T. Storchi-Bergmann

We have analyzed the properties of dust in the high galactic latitude translucent cloud Lynds 1780 using ISOPHOT maps at 100 and 200 micrometers and raster scans at 60, 80, 100, 120, 150 and 200 micrometers. In far-infrared (FIR) emission,…

天体物理学 · 物理学 2009-11-11 M. Ridderstad , M. Juvela , K. Lehtinen , D. Lemke , T. Liljestrom

The radio and far-infrared luminosities of star-forming galaxies are tightly correlated over several orders of magnitude; this is known as the far-infrared radio correlation (FIRC). Previous studies have shown that a host of factors…

We measure the local galaxy far-infrared (FIR) 60-to-100 um colour-luminosity distribution using an all-sky IRAS survey. This distribution is an important reference for the next generation of FIR--submillimetre surveys that have and will…

天体物理学 · 物理学 2010-11-08 Edward L. Chapin , David H. Hughes , Itziar Aretxaga

The FIR(60 microns) and UV (0.2 microns) emissions of individual star forming galaxies are compared to the mean properties of the local Universe. Almost all the galaxies exhibit a FIR to UV flux ratio larger than the ratio of the FIR and UV…

天体物理学 · 物理学 2007-05-23 V. Buat , D. Burgarella

The importance of the far-infrared (FIR) mapping is demonstrated for a face-on spiral galaxy, M81, by analyzing its imaging data at 65, 90, and 140 {\mu}m taken by AKARI. Basic products are the dust temperature map, the dust optical depth…

宇宙学与河外天体物理 · 物理学 2015-05-20 Ai-Lei Sun , Hiroyuki Hirashita

We investigate the local correlation betwen the 1.4 GHz radio continuum and 60 micron far-infrared (FIR) emission within the Large Magellanic Cloud (LMC) on spatial scales between 0.05 and 1.5 kpc. On scales below ~1 kpc, the radio-FIR…

天体物理学 · 物理学 2009-11-11 A. Hughes , T. Wong , R. Ekers , L. Staveley-Smith , M. Filipovic , S. Maddison , Y. Fukui , N. Mizuno

We report measurements of the [CII] fine structure line at 157.714 micron in 30 normal star-forming galaxies with the Long Wavelength Spectrometer (LWS) on the Infrared Space Observatory (ISO). The ratio of the line to total far-infrared…

We study the far infrared (60-500 $\mu$m) colours of late-type galaxies in the $Herschel$ Reference Survey, a K-band selected, volume limited sample of nearby galaxies. The far infrared colours are correlated with each other, with tighter…

Far-infrared spectra (43-197um) of 34 nearby galaxies obtained by the Long Wavelength Spectrometer (LWS) aboard the Infrared Space Observatory (ISO) were analyzed to investigate the general properties of interstellar matter in galaxies. The…

天体物理学 · 物理学 2009-11-06 T. Negishi , T. Onaka , K. -W. Chan , T. L. Roellig

Recent availability of high quality infrared (IR) data for diffuse regions in the Galaxy and external galaxies have added to our understanding of interstellar dust. A comparison of ultraviolet (UV) and IR observations may be used to…

星系天体物理 · 物理学 2017-05-02 Gautam Saikia , P. Shalima , Rupjyoti Gogoi , Amit Pathak

The polarization spectrum, or wavelength dependence of the polarization fraction, of interstellar dust emission provides important insights into the grain alignment mechanism of interstellar dust grains. We investigate the far-infrared…

We study the radio--far infrared (FIR) correlation in "blue cloud" galaxies chosen from the PRism MUltiobject Survey (PRIMUS) up to redshift ($z$) of 1.2 in the XMM-LSS field. We use rest-frame emission at 1.4 GHz in the radio and both…

The far-ultraviolet (FUV) diffuse emission is predominantly due to scattering of starlight from interstellar dust grains which shows a large regional variation depending on the relative orientations of dust and stars. The observations of…

星系天体物理 · 物理学 2013-07-05 Ananta C. Pradhan
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