REANALYSIS OF THE NEAR-INFRARED EXTRAGALACTIC BACKGROUND LIGHT BASED ON THE IRTS OBSERVATIONS

T. Matsumoto, M. G. Kim, J. Pyo, K. Tsumura

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We reanalyze data of the near-infrared background taken by IRTS using up-to-date observational results of zodiacal light (ZL), integrated star light, and diffuse Galactic light. We confirm the existence of residual isotropic emission, which is slightly lower but almost the same as previously reported. At wavelengths longer than 2 μm, the result is fairly consistent with the recent observation with AKARI. We also perform the same analysis using a different ZL model by Wright and detect residual isotropic emission that is slightly lower than that based on the original Kelsall model. Both models show residual isotropic emission that is significantly brighter than the integrated light of galaxies.

Original languageEnglish
Article number57
JournalAstrophysical Journal
Volume807
Issue number1
DOIs
Publication statusPublished - 2015 Jul 1

Keywords

  • cosmology: observations
  • infrared: diffuse background
  • methods: data analysis

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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