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相关论文: Galactic Latitude Dependence of Near-Infrared Diff…

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Observational study on near-infrared (IR) scattering properties of interstellar dust grains has been limited due to its faintness. Using all-sky maps obtained from Diffuse Infrared Background Experiment (DIRBE), we investigate the…

星系天体物理 · 物理学 2016-03-28 K. Sano , S. Matsuura , K. Tsumura , T. Arai , M. Shirahata , Y. Onishi

We measure the optical spectrum of the Diffuse Galactic Light (DGL) -- the local Milky Way in reflection -- using 92,000 blank-sky spectra from the Sloan Digital Sky Survey (SDSS). We correlate the SDSS optical intensity in regions of blank…

星系天体物理 · 物理学 2011-12-23 Timothy D. Brandt , Bruce T. Draine

We report near-infrared (IR) observations of high Galactic latitude clouds to investigate diffuse Galactic light (DGL), which is starlight scattered by interstellar dust grains. The observations were performed at $1.1$ and $1.6\,\rm{\mu m}$…

We first obtained the spectrum of the diffuse Galactic light (DGL) at general interstellar space in 1.8-5.3 um wavelength region with the low-resolution prism spectroscopy mode of the AKARI Infra-Red Camera (IRC) NIR channel. The 3.3 um PAH…

星系天体物理 · 物理学 2015-06-16 Kohji Tsumura , Toshio Matsumoto , Shuji Matsuura , Itsuki Sakon , Masahiro Tanaka , Takehiko Wada

Based on the slopes between DESI $g,r$ and IRAS 100 $\mu m$ intensities, specifically $k_{g}$ and $k_{r}$, we have constructed a substantial sample of Galactic cirri. This sample covers 561.25 deg$^2$ at high Galactic latitudes (|b| $\geq$…

星系天体物理 · 物理学 2025-02-06 Yunning Zhao , Wei Zhang , Lin Ma , Shiming Wen , Hong Wu

We present a spectrum of the diffuse Galactic light (DGL) between 3700 and 10,000 A, obtained by correlating optical sky intensity with far-infrared dust emission. We use nearly 250,000 blank-sky spectra from BOSS/SDSS-III together with…

星系天体物理 · 物理学 2022-07-06 Blake Chellew , Timothy D. Brandt , Brandon S. Hensley , Bruce T. Draine , Eve Matthaey

Using all-sky maps obtained from COBE/DIRBE at 3.5 and 4.9 um, we present a reanalysis of diffuse sky emissions such as zodiacal light (ZL), diffuse Galactic light (DGL), integrated starlight (ISL), and isotropic residual emission including…

星系天体物理 · 物理学 2016-02-17 K. Sano , K. Kawara , S. Matsuura , H. Kataza , T. Arai , Y. Matsuoka

We report 350micron observations of 18 nearby luminous infrared galaxies (LIRGs), using the Submillimeter High Angular Resolution Camera II (SHARC-II) mounted on the Caltech Submillimeter Observatory (CSO) 10.4m telescope. Combining our…

天体物理学 · 物理学 2011-02-11 M. Yang , T. G. Phillips

IRAS observations show the existence of a correlation between the infrared luminosity Lir and dust temperature Td in star-forming galaxies, in which larger Lir leads to higher dust temperature. The Lir-Td relation is commonly seen as…

天体物理学 · 物理学 2009-11-11 Pierre Chanial , Hector Flores , Bruno Guiderdoni , David Elbaz , Francois Hammer , Laurent Vigroux

We study the radial distribution of the temperature of the warm dust and gas-to-dust mass ratios in a sample of 22 spiral galaxies. The heating capabilities of the diffuse interstellar radiation field (ISRF), based on Desert et al. model,…

天体物理学 · 物理学 2009-10-30 Y. D. Mayya , T. N. Rengarajan

Diffuse Galactic cirrus, or Diffuse Galactic Light (DGL), can be a prominent component in the background of deep wide-field imaging surveys. The DGL provides unique insights into the physical and radiative properties of dust grains in our…

We have conducted B, g, V, and R-band imaging in a 45x40 arcmin^2 field containing part of the high Galactic latitude translucent cloud MBM32, and correlated the intensity of diffuse optical light S_\nu(\lambda) with that of 100 micron…

星系天体物理 · 物理学 2015-06-15 N. Ienaka , K. Kawara , Y. Matsuoka , H. Sameshima , S. Oyabu , T. Tsujimoto , B. A. Peterson

The hypothesis of an extended red emission (ERE) in diffuse Galactic light (DGL) has been put forward in 1998 by Gordon, Witt and Friedmann who found that scattered starlight was not enough to explain the amount of DGL in the R band, in…

天体物理学 · 物理学 2009-06-23 Frederic Zagury

Infrared (IR) dust emission from galaxies is frequently used as an indicator of star formation rate (SFR). However, the effect of the dust-to-gas ratio (i.e., amount of the dust) on the conversion law from IR luminosity to SFR has not so…

天体物理学 · 物理学 2009-10-31 H. Hirashita , A. K. Inoue , H. Kamaya , H. Shibai

We report measurements of the Diffuse Galactic Light (DGL) spectrum in the near-infrared, spanning the wavelength range 0.95-1.65 {\mu}m by the Cosmic Infrared Background ExpeRiment (CIBER). Using the low-resolution spectrometer (LRS)…

Spectropolarimetry from the near IR to the far UV of light scattered by dust provides a valuable diagnostic of the dust composition, grain size distribution and spatial distribution. To facilitate the use of this diagnostic, we present…

天体物理学 · 物理学 2009-10-31 Victor G. Zubko , Ari Laor

The properties of high latitude dust are of great interest to extragalactic astronomers and cosmologists. It is proposed here that essentially all high Galactic latitude interstellar dust is at a typical temperature of about 20~K (i.e. it…

天体物理学 · 物理学 2009-10-28 George F. Smoot

The 500 central pc of the Galaxy (hereafter GC) exhibit a widespread gas component with a kinetic temperature of 100-200 K. The bulk of this gas is not associated to the well-known thermal radio continuum or far infrared sources like Sgr A…

天体物理学 · 物理学 2009-11-10 N. J Rodriguez-Fernandez , J. Martin-Pintado , A. Fuente , T. L. Wilson

We gather infrared (IR) photometric data from 8 to 500 microns (Spitzer, WISE, IRAS and Herschel) for all of the HRS galaxies. Draine & Li (2007) models are fit to the data from which the stellar contribution has been carefully removed. We…

Infrared emission has been detected from normal elliptical galaxies and from clusters of galaxies at 60um and 100um with the IRAS satellite. In both cases, the emission has the characteristics of cool dust with a temperature near 30K. For…

天体物理学 · 物理学 2007-05-23 Joel N. Bregman , Caroline V. Cox
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