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相关论文: Reanalysis of near-infrared extragalactic backgrou…

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We searched for near-infrared extragalactic background light (EBL) in the data from the Near-InfraRed Spectrometer (NIRS) on the Infrared Telescope in Space (IRTS). After subtracting the contribution of faint stars and the zodiacal…

天体物理学 · 物理学 2009-11-10 T. Matsumoto , S. Matsuura , H. Murakami , M. Tanaka , M. Freund , M. Lim , M. Cohen , M. Kawada , M. Noda

The Extragalactic Background Light (EBL) as an integrated light from outside of our Galaxy includes information of the early universe and the Dark Ages. We analyzed the spectral data of the astrophysical diffuse emission obtained with the…

宇宙学与河外天体物理 · 物理学 2015-06-16 Kohji Tsumura , Toshio Matsumoto , Shuji Matsuura , Itsuki Sakon , Takehiko Wada

This paper investigates whether an isotropic zodiacal light from the outer Solar system can account for the detected background excess in near-infrared. Assuming that interplanetary dust particles are distributed in a thin spherical shell…

地球与行星天体物理 · 物理学 2018-09-19 Kohji Tsumura

The zodiacal emission, which is the thermal infrared (IR) emission from the interplanetary dust (IPD) in our Solar System, has been studied for a long time. Nevertheless, accurate modeling of the zodiacal emission has not been successful to…

地球与行星天体物理 · 物理学 2016-03-16 T. Kondo , D. Ishihara , H. Kaneda , K. Nakamichi , S. Takaba , H. Kobayashi , T. Ootsubo , J. Pyo , T. Onaka

We present the near- and mid-infrared zodiacal light spectrum obtained with the AKARI Infra-Red Camera (IRC). A catalog of 278 spectra of the diffuse sky covering a wide range of Galactic and ecliptic latitudes was constructed. The…

地球与行星天体物理 · 物理学 2015-06-16 Kohji Tsumura , Toshio Matsumoto , Shuji Matsuura , Jeonghyun Pyo , Itsuki Sakon , Takehiko Wada

We reanalyze the Imaging Photopolarimeter data from Pioneer 10 to study the zodiacal light in the B and R bands beyond Earth orbit, applying an improved method to subtract integrated star light (ISL) and diffuse Galactic light (DGL). We…

地球与行星天体物理 · 物理学 2018-08-22 T. Matsumoto , K. Tsumura , Y. Matsuoka , J. Pyo

Interplanetary dust (IPD) scatters solar radiation which results in the zodiacal light that dominates the celestial diffuse brightness at optical and near-infrared wavelengths. Both asteroid collisions and cometary ejections produce the…

Using all-sky maps obtained with COBE/DIRBE, we reanalyzed the diffuse sky brightness at 1.25 and 2.2 um, which consists of zodiacal light, diffuse Galactic light (DGL), integrated starlight (ISL), and isotropic emission including the…

星系天体物理 · 物理学 2015-09-30 K. Sano , K. Kawara , S. Matsuura , H. Kataza , T. Arai , Y. Matsuoka

The dominant non-instrumental background source for space-based infrared observatories is the zo- diacal light. We present Spitzer Infrared Array Camera (IRAC) measurements of the zodiacal light at 3.6, 4.5, 5.8, and 8.0 {\mu}m, taken as…

We present a current best estimate of the integrated near-infrared (NIR) extragalactic background light (EBL) attributable to resolved galaxies in J, H, and Ks. Our results in units of nW m-2 sr-1 are 11.7+5.6 -2.6 in J, 11.5+4.5 -1.5 in H…

宇宙学与河外天体物理 · 物理学 2011-05-18 Ryan C. Keenan , Amy J. Barger , Lennox L. Cowie , Wei-Hao Wang

Using the excellent observed correlations among various infrared wavebands with 12 and 60 micron luminosities, we calculate the 2-300 micron spectra of galaxies as a function of luminosity. We then use 12 micron and 60 micron galaxy…

天体物理学 · 物理学 2014-10-13 M. A. Malkan , F. W. Stecker

We present a current best estimate of the integrated near-infrared (NIR) extragalactic background light (EBL) attributable to resolved galaxies in J, H, and Ks . Our results for measurements of {\nu}I{\nu} in units of nW m-2 sr-1 are…

宇宙学与河外天体物理 · 物理学 2011-05-18 R. C. Keenan , A. J. Barger , L. L. Cowie , W. -H. Wang

The Extragalactic Background Light (EBL) captures the total integrated emission from stars and galaxies throughout the cosmic history. The amplitude of the near-infrared EBL from space absolute photometry observations has been controversial…

The isotropic diffuse $\gamma$-ray background (IGRB) has been detected by various experiments and recently the Fermi-LAT Collaboration has precisely measured its spectrum in a wide energy range. The origin of the IGRB is still unclear and…

高能天体物理现象 · 物理学 2016-06-22 Mattia Di Mauro

We present an extensive analysis on the determination of the isotropic radio background. We consider six different radio maps, ranging from 22 MHz to 2.3 GHz and covering a large fraction of the sky. The large scale emission is modeled as a…

宇宙学与河外天体物理 · 物理学 2015-06-18 Nicolao Fornengo , Roberto A. Lineros , Marco Regis , Marco Taoso

We report observation of isotropic interplanetary dust (IPD) by analyzing the infrared (IR) maps of Diffuse Infrared Background Experiment (DIRBE) onboard the Cosmic Background Explorer (COBE) spacecraft. To search for the isotropic IPD, we…

星系天体物理 · 物理学 2020-10-07 Kei Sano , Shuji Matsuura , Kazuma Yomo , Aoi Takahashi

A fraction of the extragalactic near-infrared (near-IR) background light involves redshifted photons from the ultraviolet (UV) emission from galaxies present during reionization at redshifts above 6. The absolute intensity and the…

宇宙学与河外天体物理 · 物理学 2015-06-05 Asantha Cooray , Yan Gong , Joseph Smidt , Mario G. Santos

We decompose the COBE/DIRBE observations of the near-IR sky brightness (minus zodiacal light) into Galactic stellar and interstellar medium (ISM) components and an extragalactic background. This empirical procedure allows us to estimate the…

天体物理学 · 物理学 2009-11-07 Richard G. Arendt , Eli Dwek

Interplanetary dust (IPD) is thought to be recently supplied from asteroids and comets. Grain properties of the IPD can give us the information about the environment in the proto-solar system, and can be traced from the shapes of silicate…

地球与行星天体物理 · 物理学 2019-08-28 Aoi Takahashi , Takafumi Ootsubo , Hideo Matsuhara , Itsuki Sakon , Fumihiko Usui , Hiroki Chihara

We combine wide and deep galaxy number-count data from GAMA, COSMOS/G10, HST ERS, HST UVUDF and various near-, mid- and far- IR datasets from ESO, Spitzer and Herschel. The combined data range from the far-UV (0.15microns) to far-IR…

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